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;", |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 168 | "[[Ljava/lang/Object;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 169 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 170 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 171 | "Ljava/lang/ref/Reference;", |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 172 | "Ljava/lang/reflect/Constructor;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 173 | "Ljava/lang/reflect/Field;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 174 | "Ljava/lang/reflect/AbstractMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 175 | "Ljava/lang/reflect/Method;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 176 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 177 | "[Ljava/lang/String;", |
| 178 | "[Ljava/lang/reflect/Field;", |
| 179 | "[Ljava/lang/reflect/AbstractMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 180 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 181 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 182 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 183 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 184 | "Z", |
| 185 | "B", |
| 186 | "C", |
| 187 | "D", |
| 188 | "F", |
| 189 | "I", |
| 190 | "J", |
| 191 | "S", |
| 192 | "V", |
| 193 | "[Z", |
| 194 | "[B", |
| 195 | "[C", |
| 196 | "[D", |
| 197 | "[F", |
| 198 | "[I", |
| 199 | "[J", |
| 200 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 201 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 202 | }; |
| 203 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 204 | ClassLinker* ClassLinker::CreateFromCompiler(const std::vector<const DexFile*>& boot_class_path, |
| 205 | InternTable* intern_table) { |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 206 | CHECK_NE(boot_class_path.size(), 0U); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 207 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 208 | class_linker->InitFromCompiler(boot_class_path); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 209 | return class_linker.release(); |
| 210 | } |
| 211 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 212 | ClassLinker* ClassLinker::CreateFromImage(InternTable* intern_table) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 213 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 214 | class_linker->InitFromImage(); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 215 | return class_linker.release(); |
| 216 | } |
| 217 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 218 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 219 | // dex_lock_ is recursive as it may be used in stack dumping. |
| 220 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel, true), |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 221 | class_roots_(NULL), |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 222 | array_iftable_(NULL), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 223 | init_done_(false), |
| 224 | intern_table_(intern_table) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 225 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 226 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 227 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 228 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 229 | VLOG(startup) << "ClassLinker::Init"; |
| 230 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 231 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 232 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 233 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 234 | // java_lang_Class comes first, it's needed for AllocClass |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 235 | Heap* heap = Runtime::Current()->GetHeap(); |
| 236 | 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] | 237 | CHECK(java_lang_Class.get() != NULL); |
| 238 | java_lang_Class->SetClass(java_lang_Class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 239 | java_lang_Class->SetClassSize(sizeof(ClassClass)); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 240 | // AllocClass(Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 241 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 242 | // Class[] is used for reflection support. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 243 | SirtRef<Class> class_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 244 | class_array_class->SetComponentType(java_lang_Class.get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 245 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 246 | // 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] | 247 | SirtRef<Class> java_lang_Object(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 248 | CHECK(java_lang_Object.get() != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 249 | // backfill Object as the super class of Class. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 250 | java_lang_Class->SetSuperClass(java_lang_Object.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 251 | java_lang_Object->SetStatus(Class::kStatusLoaded); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 252 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 253 | // Object[] next to hold class roots. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 254 | SirtRef<Class> object_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 255 | object_array_class->SetComponentType(java_lang_Object.get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 256 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 257 | // Object[][] needed for iftables. |
| 258 | SirtRef<Class> object_array_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 259 | object_array_array_class->SetComponentType(object_array_class.get()); |
| 260 | |
| 261 | // Setup the char class to be used for char[]. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 262 | SirtRef<Class> char_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 263 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 264 | // Setup the char[] class to be used for String. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 265 | SirtRef<Class> char_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 266 | char_array_class->SetComponentType(char_class.get()); |
| 267 | CharArray::SetArrayClass(char_array_class.get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 268 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 269 | // Setup String. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 270 | SirtRef<Class> java_lang_String(AllocClass(java_lang_Class.get(), sizeof(StringClass))); |
| 271 | String::SetClass(java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 272 | java_lang_String->SetObjectSize(sizeof(String)); |
| 273 | java_lang_String->SetStatus(Class::kStatusResolved); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 274 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 275 | // Create storage for root classes, save away our work so far (requires descriptors). |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 276 | class_roots_ = ObjectArray<Class>::Alloc(object_array_class.get(), kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 277 | CHECK(class_roots_ != NULL); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 278 | SetClassRoot(kJavaLangClass, java_lang_Class.get()); |
| 279 | SetClassRoot(kJavaLangObject, java_lang_Object.get()); |
| 280 | SetClassRoot(kClassArrayClass, class_array_class.get()); |
| 281 | SetClassRoot(kObjectArrayClass, object_array_class.get()); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 282 | SetClassRoot(kObjectArrayArrayClass, object_array_array_class.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 283 | SetClassRoot(kCharArrayClass, char_array_class.get()); |
| 284 | SetClassRoot(kJavaLangString, java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 285 | |
| 286 | // Setup the primitive type classes. |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 287 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(Primitive::kPrimBoolean)); |
| 288 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(Primitive::kPrimByte)); |
| 289 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(Primitive::kPrimShort)); |
| 290 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(Primitive::kPrimInt)); |
| 291 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(Primitive::kPrimLong)); |
| 292 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(Primitive::kPrimFloat)); |
| 293 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(Primitive::kPrimDouble)); |
| 294 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 295 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 296 | // Create array interface entries to populate once we can load system classes. |
| 297 | array_iftable_ = AllocIfTable(2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 298 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 299 | // Create int array type for AllocDexCache (done in AppendToBootClassPath). |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 300 | SirtRef<Class> int_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 301 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 302 | IntArray::SetArrayClass(int_array_class.get()); |
| 303 | SetClassRoot(kIntArrayClass, int_array_class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 304 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 305 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 306 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 307 | // Setup DexCache. This can not be done later since AppendToBootClassPath calls AllocDexCache. |
| 308 | SirtRef<Class> java_lang_DexCache(AllocClass(java_lang_Class.get(), sizeof(DexCacheClass))); |
| 309 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.get()); |
| 310 | java_lang_DexCache->SetObjectSize(sizeof(DexCacheClass)); |
| 311 | java_lang_DexCache->SetStatus(Class::kStatusResolved); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 312 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 313 | // Constructor, Field, Method, and AbstractMethod are necessary so that FindClass can link members. |
| 314 | SirtRef<Class> java_lang_reflect_Constructor(AllocClass(java_lang_Class.get(), |
| 315 | sizeof(MethodClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 316 | CHECK(java_lang_reflect_Constructor.get() != NULL); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 317 | java_lang_reflect_Constructor->SetObjectSize(sizeof(Constructor)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 318 | SetClassRoot(kJavaLangReflectConstructor, java_lang_reflect_Constructor.get()); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 319 | java_lang_reflect_Constructor->SetStatus(Class::kStatusResolved); |
| 320 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 321 | SirtRef<Class> java_lang_reflect_Field(AllocClass(java_lang_Class.get(), sizeof(FieldClass))); |
| 322 | CHECK(java_lang_reflect_Field.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 323 | java_lang_reflect_Field->SetObjectSize(sizeof(Field)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 324 | SetClassRoot(kJavaLangReflectField, java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 325 | java_lang_reflect_Field->SetStatus(Class::kStatusResolved); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 326 | Field::SetClass(java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 327 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 328 | 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] | 329 | CHECK(java_lang_reflect_Method.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 330 | java_lang_reflect_Method->SetObjectSize(sizeof(Method)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 331 | SetClassRoot(kJavaLangReflectMethod, java_lang_reflect_Method.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 332 | java_lang_reflect_Method->SetStatus(Class::kStatusResolved); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 333 | |
| 334 | SirtRef<Class> java_lang_reflect_AbstractMethod(AllocClass(java_lang_Class.get(), |
| 335 | sizeof(MethodClass))); |
| 336 | CHECK(java_lang_reflect_AbstractMethod.get() != NULL); |
| 337 | java_lang_reflect_AbstractMethod->SetObjectSize(sizeof(AbstractMethod)); |
| 338 | SetClassRoot(kJavaLangReflectAbstractMethod, java_lang_reflect_AbstractMethod.get()); |
| 339 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusResolved); |
| 340 | AbstractMethod::SetClasses(java_lang_reflect_Constructor.get(), java_lang_reflect_Method.get()); |
| 341 | |
| 342 | // Set up array classes for string, field, method |
| 343 | SirtRef<Class> object_array_string(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 344 | object_array_string->SetComponentType(java_lang_String.get()); |
| 345 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.get()); |
| 346 | |
| 347 | SirtRef<Class> object_array_field(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 348 | object_array_field->SetComponentType(java_lang_reflect_Field.get()); |
| 349 | SetClassRoot(kJavaLangReflectFieldArrayClass, object_array_field.get()); |
| 350 | |
| 351 | SirtRef<Class> object_array_abstract_method(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 352 | object_array_abstract_method->SetComponentType(java_lang_reflect_AbstractMethod.get()); |
| 353 | SetClassRoot(kJavaLangReflectAbstractMethodArrayClass, object_array_abstract_method.get()); |
| 354 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 355 | // Setup boot_class_path_ and register class_path now that we can use AllocObjectArray to create |
| 356 | // DexCache instances. Needs to be after String, Field, Method arrays since AllocDexCache uses |
| 357 | // these roots. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 358 | CHECK_NE(0U, boot_class_path.size()); |
| 359 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 360 | const DexFile* dex_file = boot_class_path[i]; |
| 361 | CHECK(dex_file != NULL); |
| 362 | AppendToBootClassPath(*dex_file); |
| 363 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 364 | |
| 365 | // now we can use FindSystemClass |
| 366 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 367 | // run char class through InitializePrimitiveClass to finish init |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 368 | InitializePrimitiveClass(char_class.get(), Primitive::kPrimChar); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 369 | SetClassRoot(kPrimitiveChar, char_class.get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 370 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 371 | // 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] | 372 | java_lang_Object->SetStatus(Class::kStatusNotReady); |
| 373 | Class* Object_class = FindSystemClass("Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 374 | CHECK_EQ(java_lang_Object.get(), Object_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 375 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(Object)); |
| 376 | java_lang_String->SetStatus(Class::kStatusNotReady); |
| 377 | Class* String_class = FindSystemClass("Ljava/lang/String;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 378 | CHECK_EQ(java_lang_String.get(), String_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 379 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(String)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 380 | java_lang_DexCache->SetStatus(Class::kStatusNotReady); |
| 381 | Class* DexCache_class = FindSystemClass("Ljava/lang/DexCache;"); |
| 382 | CHECK_EQ(java_lang_String.get(), String_class); |
| 383 | CHECK_EQ(java_lang_DexCache.get(), DexCache_class); |
| 384 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), sizeof(DexCache)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 385 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 386 | // 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] | 387 | SetClassRoot(kBooleanArrayClass, FindSystemClass("[Z")); |
| 388 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 389 | |
| 390 | SetClassRoot(kByteArrayClass, FindSystemClass("[B")); |
| 391 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 392 | |
| 393 | Class* found_char_array_class = FindSystemClass("[C"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 394 | CHECK_EQ(char_array_class.get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 395 | |
| 396 | SetClassRoot(kShortArrayClass, FindSystemClass("[S")); |
| 397 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 398 | |
| 399 | Class* found_int_array_class = FindSystemClass("[I"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 400 | CHECK_EQ(int_array_class.get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 401 | |
| 402 | SetClassRoot(kLongArrayClass, FindSystemClass("[J")); |
| 403 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 404 | |
| 405 | SetClassRoot(kFloatArrayClass, FindSystemClass("[F")); |
| 406 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 407 | |
| 408 | SetClassRoot(kDoubleArrayClass, FindSystemClass("[D")); |
| 409 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 410 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 411 | Class* found_class_array_class = FindSystemClass("[Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 412 | CHECK_EQ(class_array_class.get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 413 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 414 | Class* found_object_array_class = FindSystemClass("[Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 415 | CHECK_EQ(object_array_class.get(), found_object_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 416 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 417 | Class* found_object_array_array_class = FindSystemClass("[[Ljava/lang/Object;"); |
| 418 | CHECK_EQ(object_array_array_class.get(), found_object_array_array_class); |
| 419 | |
| 420 | // Setup the single, global copy of "iftable". |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 421 | Class* java_lang_Cloneable = FindSystemClass("Ljava/lang/Cloneable;"); |
| 422 | CHECK(java_lang_Cloneable != NULL); |
| 423 | Class* java_io_Serializable = FindSystemClass("Ljava/io/Serializable;"); |
| 424 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 425 | // We assume that Cloneable/Serializable don't have superinterfaces -- normally we'd have to |
| 426 | // crawl up and explicitly list all of the supers as well. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 427 | array_iftable_->Set(0, AllocInterfaceEntry(java_lang_Cloneable)); |
| 428 | array_iftable_->Set(1, AllocInterfaceEntry(java_io_Serializable)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 429 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 430 | // Sanity check Class[] and Object[]'s interfaces. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 431 | ClassHelper kh(class_array_class.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 432 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 433 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 434 | kh.ChangeClass(object_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 435 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 436 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 437 | // Run Class, Constructor, Field, and Method through FindSystemClass. This initializes their |
| 438 | // dex_cache_ fields and register them in classes_. |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 439 | Class* Class_class = FindSystemClass("Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 440 | CHECK_EQ(java_lang_Class.get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 441 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 442 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusNotReady); |
| 443 | Class* Abstract_method_class = FindSystemClass("Ljava/lang/reflect/AbstractMethod;"); |
| 444 | CHECK_EQ(java_lang_reflect_AbstractMethod.get(), Abstract_method_class); |
| 445 | |
| 446 | // Method extends AbstractMethod so must reset after. |
| 447 | java_lang_reflect_Method->SetStatus(Class::kStatusNotReady); |
| 448 | Class* Method_class = FindSystemClass("Ljava/lang/reflect/Method;"); |
| 449 | CHECK_EQ(java_lang_reflect_Method.get(), Method_class); |
| 450 | |
| 451 | // Constructor extends AbstractMethod so must reset after. |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 452 | java_lang_reflect_Constructor->SetStatus(Class::kStatusNotReady); |
| 453 | Class* Constructor_class = FindSystemClass("Ljava/lang/reflect/Constructor;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 454 | CHECK_EQ(java_lang_reflect_Constructor.get(), Constructor_class); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 455 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 456 | java_lang_reflect_Field->SetStatus(Class::kStatusNotReady); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 457 | Class* Field_class = FindSystemClass("Ljava/lang/reflect/Field;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 458 | CHECK_EQ(java_lang_reflect_Field.get(), Field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 459 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 460 | Class* String_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangStringArrayClass]); |
| 461 | CHECK_EQ(object_array_string.get(), String_array_class); |
| 462 | |
| 463 | Class* Field_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangReflectFieldArrayClass]); |
| 464 | CHECK_EQ(object_array_field.get(), Field_array_class); |
| 465 | |
| 466 | Class* Abstract_method_array_class = |
| 467 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]); |
| 468 | CHECK_EQ(object_array_abstract_method.get(), Abstract_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 469 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 470 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 471 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 472 | // Create java.lang.reflect.Proxy root. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 473 | Class* java_lang_reflect_Proxy = FindSystemClass("Ljava/lang/reflect/Proxy;"); |
| 474 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 475 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 476 | // 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] | 477 | Class* java_lang_ref_Reference = FindSystemClass("Ljava/lang/ref/Reference;"); |
| 478 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 479 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 480 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 481 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 482 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 483 | Class* java_lang_ref_PhantomReference = FindSystemClass("Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 484 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 485 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 486 | kAccClassIsReference | kAccClassIsPhantomReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 487 | Class* java_lang_ref_SoftReference = FindSystemClass("Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 488 | java_lang_ref_SoftReference->SetAccessFlags( |
| 489 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 490 | Class* java_lang_ref_WeakReference = FindSystemClass("Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 491 | java_lang_ref_WeakReference->SetAccessFlags( |
| 492 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 493 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 494 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 495 | // Setup the ClassLoader, verifying the object_size_. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 496 | Class* java_lang_ClassLoader = FindSystemClass("Ljava/lang/ClassLoader;"); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 497 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 498 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 499 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 500 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 501 | // java.lang.StackTraceElement as a convenience. |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 502 | SetClassRoot(kJavaLangThrowable, FindSystemClass("Ljava/lang/Throwable;")); |
| 503 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 504 | SetClassRoot(kJavaLangClassNotFoundException, FindSystemClass("Ljava/lang/ClassNotFoundException;")); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 505 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass("Ljava/lang/StackTraceElement;")); |
| 506 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass("[Ljava/lang/StackTraceElement;")); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 507 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 508 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 509 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 510 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 511 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 512 | } |
| 513 | |
| 514 | void ClassLinker::FinishInit() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 515 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 516 | |
| 517 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 518 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 519 | // as the types of the field can't be resolved prior to the runtime being |
| 520 | // fully initialized |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 521 | Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 522 | Class* java_lang_ref_ReferenceQueue = FindSystemClass("Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 523 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
| 524 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 525 | const DexFile& java_lang_dex = FindDexFile(java_lang_ref_Reference->GetDexCache()); |
| 526 | |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 527 | Field* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 528 | FieldHelper fh(pendingNext, this); |
| 529 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
| 530 | CHECK_EQ(java_lang_dex.GetFieldId(pendingNext->GetDexFieldIndex()).type_idx_, |
| 531 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 532 | |
| 533 | Field* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 534 | fh.ChangeField(queue); |
| 535 | CHECK_STREQ(fh.GetName(), "queue"); |
| 536 | CHECK_EQ(java_lang_dex.GetFieldId(queue->GetDexFieldIndex()).type_idx_, |
| 537 | java_lang_ref_ReferenceQueue->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 538 | |
| 539 | Field* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 540 | fh.ChangeField(queueNext); |
| 541 | CHECK_STREQ(fh.GetName(), "queueNext"); |
| 542 | CHECK_EQ(java_lang_dex.GetFieldId(queueNext->GetDexFieldIndex()).type_idx_, |
| 543 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 544 | |
| 545 | Field* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 546 | fh.ChangeField(referent); |
| 547 | CHECK_STREQ(fh.GetName(), "referent"); |
| 548 | CHECK_EQ(java_lang_dex.GetFieldId(referent->GetDexFieldIndex()).type_idx_, |
| 549 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 550 | |
| 551 | Field* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 552 | fh.ChangeField(zombie); |
| 553 | CHECK_STREQ(fh.GetName(), "zombie"); |
| 554 | CHECK_EQ(java_lang_dex.GetFieldId(zombie->GetDexFieldIndex()).type_idx_, |
| 555 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 556 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 557 | Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 558 | heap->SetReferenceOffsets(referent->GetOffset(), |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 559 | queue->GetOffset(), |
| 560 | queueNext->GetOffset(), |
| 561 | pendingNext->GetOffset(), |
| 562 | zombie->GetOffset()); |
| 563 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 564 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 565 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 566 | ClassRoot class_root = static_cast<ClassRoot>(i); |
| 567 | Class* klass = GetClassRoot(class_root); |
| 568 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 569 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 570 | // note SetClassRoot does additional validation. |
| 571 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 572 | } |
| 573 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 574 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 575 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 576 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 577 | // that Object, Class, and Object[] are setup |
| 578 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 579 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 580 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 581 | } |
| 582 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 583 | void ClassLinker::RunRootClinits() { |
| 584 | Thread* self = Thread::Current(); |
| 585 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
| 586 | Class* c = GetClassRoot(ClassRoot(i)); |
| 587 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 588 | EnsureInitialized(GetClassRoot(ClassRoot(i)), true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 589 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 590 | } |
| 591 | } |
| 592 | } |
| 593 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 594 | bool ClassLinker::GenerateOatFile(const std::string& dex_filename, |
| 595 | int oat_fd, |
| 596 | const std::string& oat_cache_filename) { |
Brian Carlstrom | a56fcd6 | 2012-02-04 21:23:01 -0800 | [diff] [blame] | 597 | std::string dex2oat_string(GetAndroidRoot()); |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 598 | dex2oat_string += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 599 | const char* dex2oat = dex2oat_string.c_str(); |
| 600 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 601 | const char* class_path = Runtime::Current()->GetClassPathString().c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 602 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 603 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 604 | std::string boot_image_option_string("--boot-image="); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 605 | boot_image_option_string += heap->GetImageSpace()->GetImageFilename(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 606 | const char* boot_image_option = boot_image_option_string.c_str(); |
| 607 | |
| 608 | std::string dex_file_option_string("--dex-file="); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 609 | dex_file_option_string += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 610 | const char* dex_file_option = dex_file_option_string.c_str(); |
| 611 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 612 | std::string oat_fd_option_string("--oat-fd="); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 613 | StringAppendF(&oat_fd_option_string, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 614 | const char* oat_fd_option = oat_fd_option_string.c_str(); |
| 615 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 616 | std::string oat_location_option_string("--oat-location="); |
| 617 | oat_location_option_string += oat_cache_filename; |
| 618 | const char* oat_location_option = oat_location_option_string.c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 619 | |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 620 | // fork and exec dex2oat |
| 621 | pid_t pid = fork(); |
| 622 | if (pid == 0) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 623 | // no allocation allowed between fork and exec |
Ian Rogers | 725aee5 | 2012-01-11 11:56:56 -0800 | [diff] [blame] | 624 | |
| 625 | // change process groups, so we don't get reaped by ProcessManager |
| 626 | setpgid(0, 0); |
| 627 | |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 628 | VLOG(class_linker) << dex2oat |
| 629 | << " --runtime-arg -Xms64m" |
| 630 | << " --runtime-arg -Xmx64m" |
| 631 | << " --runtime-arg -classpath" |
| 632 | << " --runtime-arg " << class_path |
| 633 | << " " << boot_image_option |
| 634 | << " " << dex_file_option |
| 635 | << " " << oat_fd_option |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 636 | << " " << oat_location_option; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 637 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 638 | execl(dex2oat, dex2oat, |
jeffhao | 5d84040 | 2011-10-24 17:09:45 -0700 | [diff] [blame] | 639 | "--runtime-arg", "-Xms64m", |
| 640 | "--runtime-arg", "-Xmx64m", |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 641 | "--runtime-arg", "-classpath", |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 642 | "--runtime-arg", class_path, |
| 643 | boot_image_option, |
| 644 | dex_file_option, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 645 | oat_fd_option, |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 646 | oat_location_option, |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 647 | NULL); |
| 648 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 649 | PLOG(FATAL) << "execl(" << dex2oat << ") failed"; |
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 | } else { |
| 652 | // wait for dex2oat to finish |
| 653 | int status; |
| 654 | pid_t got_pid = TEMP_FAILURE_RETRY(waitpid(pid, &status, 0)); |
| 655 | if (got_pid != pid) { |
| 656 | PLOG(ERROR) << "waitpid failed: wanted " << pid << ", got " << got_pid; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 657 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 658 | } |
| 659 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 660 | LOG(ERROR) << dex2oat << " failed with dex-file=" << dex_filename; |
| 661 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 662 | } |
| 663 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 664 | return true; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 665 | } |
| 666 | |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 667 | void ClassLinker::RegisterOatFile(const OatFile& oat_file) { |
| 668 | MutexLock mu(dex_lock_); |
| 669 | RegisterOatFileLocked(oat_file); |
| 670 | } |
| 671 | |
| 672 | void ClassLinker::RegisterOatFileLocked(const OatFile& oat_file) { |
| 673 | dex_lock_.AssertHeld(); |
| 674 | oat_files_.push_back(&oat_file); |
| 675 | } |
| 676 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 677 | OatFile* ClassLinker::OpenOat(const ImageSpace* space) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 678 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 679 | const Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 680 | const ImageHeader& image_header = space->GetImageHeader(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 681 | // Grab location but don't use Object::AsString as we haven't yet initialized the roots to |
| 682 | // check the down cast |
| 683 | String* oat_location = down_cast<String*>(image_header.GetImageRoot(ImageHeader::kOatLocation)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 684 | std::string oat_filename; |
| 685 | oat_filename += runtime->GetHostPrefix(); |
| 686 | oat_filename += oat_location->ToModifiedUtf8(); |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 687 | OatFile* oat_file = OatFile::Open(oat_filename, oat_filename, |
| 688 | image_header.GetOatBegin(), |
| 689 | OatFile::kRelocNone); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 690 | VLOG(startup) << "ClassLinker::OpenOat entering oat_filename=" << oat_filename; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 691 | if (oat_file == NULL) { |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 692 | LOG(ERROR) << "Failed to open oat file " << oat_filename << " referenced from image."; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 693 | return NULL; |
| 694 | } |
| 695 | uint32_t oat_checksum = oat_file->GetOatHeader().GetChecksum(); |
| 696 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
| 697 | if (oat_checksum != image_oat_checksum) { |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 698 | LOG(ERROR) << "Failed to match oat file checksum " << std::hex << oat_checksum |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 699 | << " to expected oat checksum " << std::hex << oat_checksum |
| 700 | << " in image"; |
| 701 | return NULL; |
| 702 | } |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 703 | RegisterOatFileLocked(*oat_file); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 704 | VLOG(startup) << "ClassLinker::OpenOat exiting"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 705 | return oat_file; |
| 706 | } |
| 707 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 708 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 709 | MutexLock mu(dex_lock_); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 710 | return FindOpenedOatFileFromDexLocation(dex_file.GetLocation()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 711 | } |
| 712 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 713 | const OatFile* ClassLinker::FindOpenedOatFileFromDexLocation(const std::string& dex_location) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 714 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 715 | const OatFile* oat_file = oat_files_[i]; |
| 716 | DCHECK(oat_file != NULL); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 717 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, false); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 718 | if (oat_dex_file != NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 719 | return oat_file; |
| 720 | } |
| 721 | } |
| 722 | return NULL; |
| 723 | } |
| 724 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 725 | static const DexFile* FindDexFileInOatLocation(const std::string& dex_location, |
| 726 | uint32_t dex_location_checksum, |
| 727 | const std::string& oat_location) { |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 728 | UniquePtr<OatFile> oat_file( |
| 729 | OatFile::Open(oat_location, oat_location, NULL, OatFile::kRelocAll)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 730 | if (oat_file.get() == NULL) { |
| 731 | return NULL; |
| 732 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 733 | Runtime* runtime = Runtime::Current(); |
| 734 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
| 735 | if (oat_file->GetOatHeader().GetImageFileLocationChecksum() != image_header.GetOatChecksum()) { |
| 736 | return NULL; |
| 737 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 738 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 739 | if (oat_dex_file == NULL) { |
| 740 | return NULL; |
| 741 | } |
| 742 | if (oat_dex_file->GetDexFileLocationChecksum() != dex_location_checksum) { |
| 743 | return NULL; |
| 744 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 745 | runtime->GetClassLinker()->RegisterOatFile(*oat_file.release()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 746 | return oat_dex_file->OpenDexFile(); |
| 747 | } |
| 748 | |
| 749 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocation(const std::string& dex_location, |
| 750 | const std::string& oat_location) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 751 | MutexLock mu(dex_lock_); |
| 752 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_location); |
| 753 | } |
| 754 | |
| 755 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocationLocked(const std::string& dex_location, |
| 756 | const std::string& oat_location) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 757 | uint32_t dex_location_checksum; |
| 758 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 759 | LOG(ERROR) << "Failed to compute checksum '" << dex_location << "'"; |
| 760 | return NULL; |
| 761 | } |
| 762 | |
| 763 | // Check if we already have an up-to-date output file |
| 764 | const DexFile* dex_file = FindDexFileInOatLocation(dex_location, |
| 765 | dex_location_checksum, |
| 766 | oat_location); |
| 767 | if (dex_file != NULL) { |
| 768 | return dex_file; |
| 769 | } |
| 770 | |
| 771 | // Generate the output oat file for the dex file |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 772 | UniquePtr<File> file(OS::OpenFile(oat_location.c_str(), true)); |
| 773 | if (file.get() == NULL) { |
| 774 | LOG(ERROR) << "Failed to create oat file: " << oat_location; |
| 775 | return NULL; |
| 776 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 777 | if (!GenerateOatFile(dex_location, file->Fd(), oat_location)) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 778 | LOG(ERROR) << "Failed to generate oat file: " << oat_location; |
| 779 | return NULL; |
| 780 | } |
| 781 | // Open the oat from file descriptor we passed to GenerateOatFile |
| 782 | if (lseek(file->Fd(), 0, SEEK_SET) != 0) { |
| 783 | LOG(ERROR) << "Failed to seek to start of generated oat file: " << oat_location; |
| 784 | return NULL; |
| 785 | } |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 786 | const OatFile* oat_file = |
| 787 | OatFile::Open(*file.get(), oat_location, NULL, OatFile::kRelocAll); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 788 | if (oat_file == NULL) { |
| 789 | LOG(ERROR) << "Failed to open generated oat file: " << oat_location; |
| 790 | return NULL; |
| 791 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 792 | RegisterOatFileLocked(*oat_file); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 793 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 794 | if (oat_dex_file == NULL) { |
| 795 | LOG(ERROR) << "Failed to find dex file in generated oat file: " << oat_location; |
| 796 | return NULL; |
| 797 | } |
| 798 | return oat_dex_file->OpenDexFile(); |
| 799 | } |
| 800 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 801 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
| 802 | const std::string& dex_location, |
| 803 | uint32_t dex_location_checksum) { |
| 804 | Runtime* runtime = Runtime::Current(); |
| 805 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
| 806 | uint32_t image_checksum = image_header.GetOatChecksum(); |
| 807 | bool image_check = (oat_file->GetOatHeader().GetImageFileLocationChecksum() == image_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 808 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 809 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 810 | if (oat_dex_file == NULL) { |
| 811 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 812 | << " does not contain contents for " << dex_location; |
| 813 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 814 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 815 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
| 816 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 817 | << " contains contents for " << oat_dex_file->GetDexFileLocation(); |
| 818 | } |
| 819 | return false; |
| 820 | } |
| 821 | bool dex_check = (dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum()); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 822 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 823 | if (image_check && dex_check) { |
| 824 | return true; |
| 825 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 826 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 827 | if (!image_check) { |
| 828 | std::string image_file(image_header.GetImageRoot( |
| 829 | ImageHeader::kOatLocation)->AsString()->ToModifiedUtf8()); |
| 830 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
| 831 | << " checksum ( " << std::hex << oat_dex_file->GetDexFileLocationChecksum() |
| 832 | << ") mismatch with " << image_file |
| 833 | << " (" << std::hex << image_checksum << ")"; |
| 834 | } |
| 835 | if (!dex_check) { |
| 836 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
| 837 | << " checksum ( " << std::hex << oat_dex_file->GetDexFileLocationChecksum() |
| 838 | << ") mismatch with " << dex_location |
| 839 | << " (" << std::hex << dex_location_checksum << ")"; |
| 840 | } |
| 841 | return false; |
| 842 | } |
| 843 | |
| 844 | const DexFile* ClassLinker::VerifyAndOpenDexFileFromOatFile(const OatFile* oat_file, |
| 845 | const std::string& dex_location, |
| 846 | uint32_t dex_location_checksum) { |
| 847 | bool verified = VerifyOatFileChecksums(oat_file, dex_location, dex_location_checksum); |
| 848 | if (!verified) { |
| 849 | return NULL; |
| 850 | } |
| 851 | RegisterOatFileLocked(*oat_file); |
| 852 | return oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 853 | } |
| 854 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 855 | const DexFile* ClassLinker::FindDexFileInOatFileFromDexLocation(const std::string& dex_location) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 856 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 857 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 858 | const OatFile* open_oat_file = FindOpenedOatFileFromDexLocation(dex_location); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 859 | if (open_oat_file != NULL) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 860 | return open_oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 861 | } |
| 862 | |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 863 | // Look for an existing file next to dex. for example, for |
| 864 | // /foo/bar/baz.jar, look for /foo/bar/baz.jar.oat. |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 865 | std::string oat_filename(OatFile::DexFilenameToOatFilename(dex_location)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 866 | const OatFile* oat_file = FindOatFileFromOatLocationLocked(oat_filename); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 867 | if (oat_file != NULL) { |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 868 | uint32_t dex_location_checksum; |
| 869 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 870 | // If no classes.dex found in dex_location, it has been stripped, assume oat is up-to-date. |
| 871 | // This is the common case in user builds for jar's and apk's in the /system directory. |
| 872 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 873 | CHECK(oat_dex_file != NULL) << oat_filename << " " << dex_location; |
| 874 | RegisterOatFileLocked(*oat_file); |
| 875 | return oat_dex_file->OpenDexFile(); |
| 876 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 877 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 878 | dex_location, |
| 879 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 880 | if (dex_file != NULL) { |
| 881 | return dex_file; |
| 882 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 883 | } |
| 884 | // Look for an existing file in the art-cache, validating the result if found |
| 885 | // not found in /foo/bar/baz.oat? try /data/art-cache/foo@bar@baz.oat |
| 886 | std::string cache_location(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 887 | oat_file = FindOatFileFromOatLocationLocked(cache_location); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 888 | if (oat_file != NULL) { |
| 889 | uint32_t dex_location_checksum; |
| 890 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 891 | LOG(WARNING) << "Failed to compute checksum: " << dex_location; |
| 892 | return NULL; |
| 893 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 894 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 895 | dex_location, |
| 896 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 897 | if (dex_file != NULL) { |
| 898 | return dex_file; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 899 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 900 | if (TEMP_FAILURE_RETRY(unlink(oat_file->GetLocation().c_str())) != 0) { |
Brian Carlstrom | 5ef7493 | 2012-03-23 17:56:02 -0700 | [diff] [blame] | 901 | PLOG(FATAL) << "Failed to remove obsolete .oat file " << oat_file->GetLocation(); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 902 | } |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 903 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 904 | LOG(INFO) << "Failed to open oat file from " << oat_filename << " or " << cache_location << "."; |
| 905 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 906 | // Try to generate oat file if it wasn't found or was obsolete. |
| 907 | std::string oat_cache_filename(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 908 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_cache_filename); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 909 | } |
| 910 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 911 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 912 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 913 | const OatFile* oat_file = oat_files_[i]; |
| 914 | DCHECK(oat_file != NULL); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 915 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 916 | return oat_file; |
| 917 | } |
| 918 | } |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 919 | return NULL; |
| 920 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 921 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 922 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 923 | MutexLock mu(dex_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 924 | return FindOatFileFromOatLocationLocked(oat_location); |
| 925 | } |
| 926 | |
| 927 | const OatFile* ClassLinker::FindOatFileFromOatLocationLocked(const std::string& oat_location) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 928 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
| 929 | if (oat_file != NULL) { |
| 930 | return oat_file; |
| 931 | } |
| 932 | |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 933 | oat_file = OatFile::Open(oat_location, oat_location, NULL, |
| 934 | OatFile::kRelocAll); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 935 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 936 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 937 | } |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 938 | CHECK(oat_file != NULL) << oat_location; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 939 | return oat_file; |
| 940 | } |
| 941 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 942 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 943 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 944 | CHECK(!init_done_); |
| 945 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 946 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 947 | ImageSpace* space = heap->GetImageSpace(); |
| 948 | OatFile* oat_file = OpenOat(space); |
| 949 | CHECK(oat_file != NULL) << "Failed to open oat file for image"; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 950 | CHECK_EQ(oat_file->GetOatHeader().GetImageFileLocationChecksum(), 0U); |
Elliott Hughes | 7484741 | 2012-06-20 18:10:21 -0700 | [diff] [blame] | 951 | CHECK(oat_file->GetOatHeader().GetImageFileLocation().empty()); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 952 | Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 953 | ObjectArray<DexCache>* dex_caches = dex_caches_object->AsObjectArray<DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 954 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 955 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 956 | // as being Strings or not |
| 957 | Class* java_lang_String = space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots) |
| 958 | ->AsObjectArray<Class>()->Get(kJavaLangString); |
| 959 | String::SetClass(java_lang_String); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 960 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 961 | CHECK_EQ(oat_file->GetOatHeader().GetDexFileCount(), |
| 962 | static_cast<uint32_t>(dex_caches->GetLength())); |
| 963 | for (int i = 0; i < dex_caches->GetLength(); i++) { |
| 964 | SirtRef<DexCache> dex_cache(dex_caches->Get(i)); |
| 965 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
| 966 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file_location); |
| 967 | const DexFile* dex_file = oat_dex_file->OpenDexFile(); |
| 968 | if (dex_file == NULL) { |
| 969 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
| 970 | << " from within oat file " << oat_file->GetLocation(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 971 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 972 | |
| 973 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 974 | |
| 975 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 976 | } |
| 977 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 978 | // reinit clases_ table |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 979 | { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 980 | ReaderMutexLock mu(*Locks::heap_bitmap_lock_); |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 981 | heap->FlushAllocStack(); |
Mathieu Chartier | e0f0cb3 | 2012-08-28 11:26:00 -0700 | [diff] [blame] | 982 | heap->GetLiveBitmap()->Walk(InitFromImageCallback, this); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 983 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 984 | |
| 985 | // reinit class_roots_ |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 986 | Object* class_roots_object = |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 987 | heap->GetImageSpace()->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots); |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 988 | class_roots_ = class_roots_object->AsObjectArray<Class>(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 989 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 990 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 991 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 992 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 993 | // String class root was set above |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 994 | Field::SetClass(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 995 | AbstractMethod::SetClasses(GetClassRoot(kJavaLangReflectConstructor), |
| 996 | GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 997 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 998 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 999 | CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 1000 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 1001 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 1002 | IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1003 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1004 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1005 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1006 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1007 | |
| 1008 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1009 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1010 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1011 | } |
| 1012 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 1013 | void ClassLinker::InitFromImageCallback(Object* obj, void* arg) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1014 | DCHECK(obj != NULL); |
| 1015 | DCHECK(arg != NULL); |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1016 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1017 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1018 | if (obj->GetClass()->IsStringClass()) { |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1019 | class_linker->intern_table_->RegisterStrong(obj->AsString()); |
Brian Carlstrom | c74255f | 2011-09-11 22:47:39 -0700 | [diff] [blame] | 1020 | return; |
| 1021 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1022 | if (obj->IsClass()) { |
| 1023 | // restore class to ClassLinker::classes_ table |
| 1024 | Class* klass = obj->AsClass(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1025 | ClassHelper kh(klass, class_linker); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1026 | Class* existing = class_linker->InsertClass(kh.GetDescriptor(), klass, true); |
| 1027 | DCHECK(existing == NULL) << kh.GetDescriptor(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1028 | return; |
| 1029 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1030 | } |
| 1031 | |
| 1032 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1033 | // reinit references to when reinitializing a ClassLinker from a |
| 1034 | // mapped image. |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1035 | void ClassLinker::VisitRoots(Heap::RootVisitor* visitor, void* arg) const { |
| 1036 | visitor(class_roots_, arg); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1037 | |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1038 | { |
| 1039 | MutexLock mu(dex_lock_); |
| 1040 | for (size_t i = 0; i < dex_caches_.size(); i++) { |
| 1041 | visitor(dex_caches_[i], arg); |
| 1042 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1043 | } |
| 1044 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1045 | { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1046 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1047 | typedef Table::const_iterator It; // TODO: C++0x auto |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1048 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1049 | visitor(it->second, arg); |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1050 | } |
Mathieu Chartier | 262e5ff | 2012-06-01 17:35:38 -0700 | [diff] [blame] | 1051 | |
| 1052 | // We deliberately ignore the class roots in the image since we |
| 1053 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1054 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1055 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1056 | visitor(array_iftable_, arg); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1057 | } |
| 1058 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1059 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) const { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1060 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1061 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 1062 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 1063 | if (!visitor(it->second, arg)) { |
| 1064 | return; |
| 1065 | } |
| 1066 | } |
| 1067 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 1068 | if (!visitor(it->second, arg)) { |
| 1069 | return; |
| 1070 | } |
| 1071 | } |
| 1072 | } |
| 1073 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1074 | static bool GetClassesVisitor(Class* c, void* arg) { |
| 1075 | std::set<Class*>* classes = reinterpret_cast<std::set<Class*>*>(arg); |
| 1076 | classes->insert(c); |
| 1077 | return true; |
| 1078 | } |
| 1079 | |
| 1080 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) const { |
| 1081 | std::set<Class*> classes; |
| 1082 | VisitClasses(GetClassesVisitor, &classes); |
| 1083 | typedef std::set<Class*>::const_iterator It; // TODO: C++0x auto |
| 1084 | for (It it = classes.begin(), end = classes.end(); it != end; ++it) { |
| 1085 | if (!visitor(*it, arg)) { |
| 1086 | return; |
| 1087 | } |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1092 | ClassLinker::~ClassLinker() { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1093 | String::ResetClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1094 | Field::ResetClass(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1095 | AbstractMethod::ResetClasses(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1096 | BooleanArray::ResetArrayClass(); |
| 1097 | ByteArray::ResetArrayClass(); |
| 1098 | CharArray::ResetArrayClass(); |
| 1099 | DoubleArray::ResetArrayClass(); |
| 1100 | FloatArray::ResetArrayClass(); |
| 1101 | IntArray::ResetArrayClass(); |
| 1102 | LongArray::ResetArrayClass(); |
| 1103 | ShortArray::ResetArrayClass(); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1104 | Throwable::ResetClass(); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1105 | StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1106 | STLDeleteElements(&boot_class_path_); |
| 1107 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1108 | } |
| 1109 | |
| 1110 | DexCache* ClassLinker::AllocDexCache(const DexFile& dex_file) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1111 | Heap* heap = Runtime::Current()->GetHeap(); |
| 1112 | Class* dex_cache_class = GetClassRoot(kJavaLangDexCache); |
| 1113 | SirtRef<DexCache> dex_cache( |
| 1114 | down_cast<DexCache*>(heap->AllocObject(dex_cache_class, dex_cache_class->GetObjectSize()))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1115 | if (dex_cache.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1116 | return NULL; |
| 1117 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1118 | SirtRef<String> location(intern_table_->InternStrong(dex_file.GetLocation().c_str())); |
| 1119 | if (location.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1120 | return NULL; |
| 1121 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1122 | SirtRef<ObjectArray<String> > strings(AllocStringArray(dex_file.NumStringIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1123 | if (strings.get() == NULL) { |
| 1124 | return NULL; |
| 1125 | } |
| 1126 | SirtRef<ObjectArray<Class> > types(AllocClassArray(dex_file.NumTypeIds())); |
| 1127 | if (types.get() == NULL) { |
| 1128 | return NULL; |
| 1129 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1130 | SirtRef<ObjectArray<AbstractMethod> > methods(AllocMethodArray(dex_file.NumMethodIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1131 | if (methods.get() == NULL) { |
| 1132 | return NULL; |
| 1133 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1134 | SirtRef<ObjectArray<Field> > fields(AllocFieldArray(dex_file.NumFieldIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1135 | if (fields.get() == NULL) { |
| 1136 | return NULL; |
| 1137 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1138 | SirtRef<ObjectArray<StaticStorageBase> > initialized_static_storage(AllocObjectArray<StaticStorageBase>(dex_file.NumTypeIds())); |
| 1139 | if (initialized_static_storage.get() == NULL) { |
| 1140 | return NULL; |
| 1141 | } |
| 1142 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1143 | dex_cache->Init(&dex_file, |
| 1144 | location.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1145 | strings.get(), |
| 1146 | types.get(), |
| 1147 | methods.get(), |
| 1148 | fields.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1149 | initialized_static_storage.get()); |
| 1150 | return dex_cache.get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1151 | } |
| 1152 | |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1153 | InterfaceEntry* ClassLinker::AllocInterfaceEntry(Class* interface) { |
| 1154 | DCHECK(interface->IsInterface()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1155 | SirtRef<ObjectArray<Object> > array(AllocObjectArray<Object>(InterfaceEntry::LengthAsArray())); |
| 1156 | SirtRef<InterfaceEntry> interface_entry(down_cast<InterfaceEntry*>(array.get())); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1157 | interface_entry->SetInterface(interface); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1158 | return interface_entry.get(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1159 | } |
| 1160 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1161 | Class* ClassLinker::AllocClass(Class* java_lang_Class, size_t class_size) { |
| 1162 | DCHECK_GE(class_size, sizeof(Class)); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1163 | Heap* heap = Runtime::Current()->GetHeap(); |
| 1164 | SirtRef<Class> klass(heap->AllocObject(java_lang_Class, class_size)->AsClass()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1165 | klass->SetPrimitiveType(Primitive::kPrimNot); // default to not being primitive |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1166 | klass->SetClassSize(class_size); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1167 | return klass.get(); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1168 | } |
| 1169 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1170 | Class* ClassLinker::AllocClass(size_t class_size) { |
| 1171 | return AllocClass(GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1172 | } |
| 1173 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1174 | Field* ClassLinker::AllocField() { |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 1175 | return down_cast<Field*>(GetClassRoot(kJavaLangReflectField)->AllocObject()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1176 | } |
| 1177 | |
| 1178 | Method* ClassLinker::AllocMethod() { |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 1179 | return down_cast<Method*>(GetClassRoot(kJavaLangReflectMethod)->AllocObject()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1180 | } |
| 1181 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1182 | Constructor* ClassLinker::AllocConstructor() { |
| 1183 | return down_cast<Constructor*>(GetClassRoot(kJavaLangReflectConstructor)->AllocObject()); |
| 1184 | } |
| 1185 | |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1186 | ObjectArray<StackTraceElement>* ClassLinker::AllocStackTraceElementArray(size_t length) { |
| 1187 | return ObjectArray<StackTraceElement>::Alloc( |
| 1188 | GetClassRoot(kJavaLangStackTraceElementArrayClass), |
| 1189 | length); |
| 1190 | } |
| 1191 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1192 | static Class* EnsureResolved(Class* klass) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1193 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1194 | DCHECK(klass != NULL); |
| 1195 | // Wait for the class if it has not already been linked. |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1196 | Thread* self = Thread::Current(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1197 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1198 | ObjectLock lock(klass); |
| 1199 | // Check for circular dependencies between classes. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1200 | if (!klass->IsResolved() && klass->GetClinitThreadId() == self->GetTid()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 1201 | self->ThrowNewException("Ljava/lang/ClassCircularityError;", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1202 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1203 | klass->SetStatus(Class::kStatusError); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1204 | return NULL; |
| 1205 | } |
| 1206 | // Wait for the pending initialization to complete. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1207 | while (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1208 | lock.Wait(); |
| 1209 | } |
| 1210 | } |
| 1211 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1212 | ThrowEarlierClassFailure(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1213 | return NULL; |
| 1214 | } |
| 1215 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1216 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
| 1217 | CHECK(!self->IsExceptionPending()) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1218 | << PrettyClass(klass) << " " << PrettyTypeOf(self->GetException()) << "\n" |
| 1219 | << self->GetException()->Dump(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1220 | return klass; |
| 1221 | } |
| 1222 | |
Elliott Hughes | db7d5e9 | 2011-12-16 18:47:37 -0800 | [diff] [blame] | 1223 | Class* ClassLinker::FindSystemClass(const char* descriptor) { |
| 1224 | return FindClass(descriptor, NULL); |
| 1225 | } |
| 1226 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1227 | Class* ClassLinker::FindClass(const char* descriptor, ClassLoader* class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1228 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1229 | Thread* self = Thread::Current(); |
| 1230 | DCHECK(self != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1231 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1232 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1233 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1234 | // for primitive classes that aren't backed by dex files. |
| 1235 | return FindPrimitiveClass(descriptor[0]); |
| 1236 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1237 | // Find the class in the loaded classes table. |
| 1238 | Class* klass = LookupClass(descriptor, class_loader); |
| 1239 | if (klass != NULL) { |
| 1240 | return EnsureResolved(klass); |
| 1241 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1242 | // Class is not yet loaded. |
| 1243 | if (descriptor[0] == '[') { |
| 1244 | return CreateArrayClass(descriptor, class_loader); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1245 | |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1246 | } else if (class_loader == NULL) { |
| 1247 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1248 | if (pair.second != NULL) { |
| 1249 | return DefineClass(descriptor, NULL, *pair.first, *pair.second); |
| 1250 | } |
| 1251 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1252 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1253 | // first try the boot class path |
| 1254 | Class* system_class = FindSystemClass(descriptor); |
| 1255 | if (system_class != NULL) { |
| 1256 | return system_class; |
| 1257 | } |
| 1258 | CHECK(self->IsExceptionPending()); |
| 1259 | self->ClearException(); |
| 1260 | |
| 1261 | // next try the compile time class path |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1262 | const std::vector<const DexFile*>* class_path; |
| 1263 | { |
| 1264 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1265 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), soa.AddLocalReference<jobject>(class_loader)); |
| 1266 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1267 | } |
| 1268 | |
| 1269 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1270 | if (pair.second != NULL) { |
| 1271 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1272 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1273 | |
| 1274 | } else { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1275 | ScopedObjectAccessUnchecked soa(self->GetJniEnv()); |
| 1276 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
| 1277 | soa.AddLocalReference<jobject>(class_loader)); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1278 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1279 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1280 | { |
| 1281 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1282 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1283 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1284 | if (class_name_object.get() == NULL) { |
| 1285 | return NULL; |
| 1286 | } |
| 1287 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1288 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1289 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1290 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1291 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1292 | if (soa.Env()->ExceptionCheck()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1293 | // If the ClassLoader threw, pass that exception up. |
| 1294 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1295 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1296 | // broken loader - throw NPE to be compatible with Dalvik |
| 1297 | ThrowNullPointerException("ClassLoader.loadClass returned null for %s", |
| 1298 | class_name_string.c_str()); |
| 1299 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1300 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1301 | // success, return Class* |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1302 | return soa.Decode<Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1303 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1304 | } |
| 1305 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1306 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1307 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1308 | } |
| 1309 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1310 | Class* ClassLinker::DefineClass(const StringPiece& descriptor, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1311 | ClassLoader* class_loader, |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1312 | const DexFile& dex_file, |
| 1313 | const DexFile::ClassDef& dex_class_def) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1314 | SirtRef<Class> klass(NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1315 | // Load the class from the dex file. |
| 1316 | if (!init_done_) { |
| 1317 | // finish up init of hand crafted class_roots_ |
| 1318 | if (descriptor == "Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1319 | klass.reset(GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1320 | } else if (descriptor == "Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1321 | klass.reset(GetClassRoot(kJavaLangClass)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1322 | } else if (descriptor == "Ljava/lang/String;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1323 | klass.reset(GetClassRoot(kJavaLangString)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1324 | } else if (descriptor == "Ljava/lang/DexCache;") { |
| 1325 | klass.reset(GetClassRoot(kJavaLangDexCache)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1326 | } else if (descriptor == "Ljava/lang/reflect/Field;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1327 | klass.reset(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1328 | } else if (descriptor == "Ljava/lang/reflect/AbstractMethod;") { |
| 1329 | klass.reset(GetClassRoot(kJavaLangReflectAbstractMethod)); |
| 1330 | } else if (descriptor == "Ljava/lang/reflect/Constructor;") { |
| 1331 | klass.reset(GetClassRoot(kJavaLangReflectConstructor)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1332 | } else if (descriptor == "Ljava/lang/reflect/Method;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1333 | klass.reset(GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 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 | } else { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1338 | klass.reset(AllocClass(SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1339 | } |
| 1340 | klass->SetDexCache(FindDexCache(dex_file)); |
| 1341 | LoadClass(dex_file, dex_class_def, klass, class_loader); |
| 1342 | // Check for a pending exception during load |
| 1343 | Thread* self = Thread::Current(); |
| 1344 | if (self->IsExceptionPending()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1345 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1346 | return NULL; |
| 1347 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1348 | ObjectLock lock(klass.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1349 | klass->SetClinitThreadId(self->GetTid()); |
| 1350 | // Add the newly loaded class to the loaded classes table. |
Brian Carlstrom | 01e076e | 2012-03-30 11:54:16 -0700 | [diff] [blame] | 1351 | SirtRef<Class> existing(InsertClass(descriptor, klass.get(), false)); |
| 1352 | if (existing.get() != NULL) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1353 | // We failed to insert because we raced with another thread. |
Brian Carlstrom | 01e076e | 2012-03-30 11:54:16 -0700 | [diff] [blame] | 1354 | return EnsureResolved(existing.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1355 | } |
| 1356 | // Finish loading (if necessary) by finding parents |
| 1357 | CHECK(!klass->IsLoaded()); |
| 1358 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1359 | // Loading failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1360 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1361 | lock.NotifyAll(); |
| 1362 | return NULL; |
| 1363 | } |
| 1364 | CHECK(klass->IsLoaded()); |
| 1365 | // Link the class (if necessary) |
| 1366 | CHECK(!klass->IsResolved()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1367 | if (!LinkClass(klass, NULL)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1368 | // Linking failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1369 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1370 | lock.NotifyAll(); |
| 1371 | return NULL; |
| 1372 | } |
| 1373 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1374 | |
| 1375 | /* |
| 1376 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1377 | * definition of "preparation" is creating the static fields for a |
| 1378 | * class and initializing them to the standard default values, but not |
| 1379 | * executing any code (that comes later, during "initialization"). |
| 1380 | * |
| 1381 | * We did the static preparation in LinkClass. |
| 1382 | * |
| 1383 | * The class has been prepared and resolved but possibly not yet verified |
| 1384 | * at this point. |
| 1385 | */ |
| 1386 | Dbg::PostClassPrepare(klass.get()); |
| 1387 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1388 | return klass.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1389 | } |
| 1390 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1391 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
| 1392 | size_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
| 1393 | const DexFile::ClassDef& dex_class_def) { |
| 1394 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1395 | size_t num_ref = 0; |
| 1396 | size_t num_32 = 0; |
| 1397 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1398 | if (class_data != NULL) { |
| 1399 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1400 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1401 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1402 | char c = descriptor[0]; |
| 1403 | if (c == 'L' || c == '[') { |
| 1404 | num_ref++; |
| 1405 | } else if (c == 'J' || c == 'D') { |
| 1406 | num_64++; |
| 1407 | } else { |
| 1408 | num_32++; |
| 1409 | } |
| 1410 | } |
| 1411 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1412 | // start with generic class data |
| 1413 | size_t size = sizeof(Class); |
| 1414 | // follow with reference fields which must be contiguous at start |
| 1415 | size += (num_ref * sizeof(uint32_t)); |
| 1416 | // if there are 64-bit fields to add, make sure they are aligned |
| 1417 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
| 1418 | if (num_32 != 0) { |
| 1419 | // use an available 32-bit field for padding |
| 1420 | num_32--; |
| 1421 | } |
| 1422 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1423 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1424 | } |
| 1425 | // tack on any 64-bit fields now that alignment is assured |
| 1426 | size += (num_64 * sizeof(uint64_t)); |
| 1427 | // tack on any remaining 32-bit fields |
| 1428 | size += (num_32 * sizeof(uint32_t)); |
| 1429 | return size; |
| 1430 | } |
| 1431 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1432 | const OatFile::OatClass* ClassLinker::GetOatClass(const DexFile& dex_file, const char* descriptor) { |
| 1433 | DCHECK(descriptor != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1434 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 1435 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1436 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
| 1437 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1438 | uint32_t class_def_index; |
| 1439 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
| 1440 | CHECK(found) << dex_file.GetLocation() << " " << descriptor; |
| 1441 | const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_index); |
| 1442 | CHECK(oat_class != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1443 | return oat_class; |
| 1444 | } |
| 1445 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1446 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(const AbstractMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1447 | // 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] | 1448 | // method for direct methods (or virtual methods made direct). |
| 1449 | Class* declaring_class = method->GetDeclaringClass(); |
| 1450 | size_t oat_method_index; |
| 1451 | if (method->IsStatic() || method->IsDirect()) { |
| 1452 | // Simple case where the oat method index was stashed at load time. |
| 1453 | oat_method_index = method->GetMethodIndex(); |
| 1454 | } else { |
| 1455 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1456 | // by search for its position in the declared virtual methods. |
| 1457 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1458 | size_t end = declaring_class->NumVirtualMethods(); |
| 1459 | bool found = false; |
| 1460 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1461 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1462 | found = true; |
| 1463 | break; |
| 1464 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1465 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1466 | } |
| 1467 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1468 | } |
| 1469 | ClassHelper kh(declaring_class); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1470 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(kh.GetDexFile(), kh.GetDescriptor())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1471 | CHECK(oat_class.get() != NULL); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1472 | return oat_class->GetOatMethod(oat_method_index); |
| 1473 | } |
| 1474 | |
| 1475 | // Special case to get oat code without overwriting a trampoline. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1476 | const void* ClassLinker::GetOatCodeFor(const AbstractMethod* method) { |
TDYa127 | ccffd9e | 2012-04-08 14:37:03 -0700 | [diff] [blame] | 1477 | CHECK(Runtime::Current()->IsCompiler() || method->GetDeclaringClass()->IsInitializing()); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1478 | return GetOatMethodFor(method).GetCode(); |
| 1479 | } |
| 1480 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1481 | void ClassLinker::FixupStaticTrampolines(Class* klass) { |
| 1482 | ClassHelper kh(klass); |
| 1483 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 1484 | CHECK(dex_class_def != NULL); |
| 1485 | const DexFile& dex_file = kh.GetDexFile(); |
| 1486 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1487 | if (class_data == NULL) { |
| 1488 | return; // no fields or methods - for example a marker interface |
| 1489 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1490 | if (!Runtime::Current()->IsStarted() || Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1491 | // OAT file unavailable |
| 1492 | return; |
| 1493 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1494 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, kh.GetDescriptor())); |
| 1495 | CHECK(oat_class.get() != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1496 | ClassDataItemIterator it(dex_file, class_data); |
| 1497 | // Skip fields |
| 1498 | while (it.HasNextStaticField()) { |
| 1499 | it.Next(); |
| 1500 | } |
| 1501 | while (it.HasNextInstanceField()) { |
| 1502 | it.Next(); |
| 1503 | } |
| 1504 | size_t method_index = 0; |
| 1505 | // Link the code of methods skipped by LinkCode |
| 1506 | const void* trampoline = Runtime::Current()->GetResolutionStubArray(Runtime::kStaticMethod)->GetData(); |
| 1507 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1508 | AbstractMethod* method = klass->GetDirectMethod(i); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1509 | if (Runtime::Current()->IsMethodTracingActive()) { |
| 1510 | Trace* tracer = Runtime::Current()->GetTracer(); |
| 1511 | if (tracer->GetSavedCodeFromMap(method) == trampoline) { |
| 1512 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
| 1513 | tracer->ResetSavedCode(method); |
| 1514 | method->SetCode(code); |
| 1515 | tracer->SaveAndUpdateCode(method); |
| 1516 | } |
| 1517 | } else if (method->GetCode() == trampoline) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1518 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 1519 | CHECK(code != NULL) |
| 1520 | << "Resolving a static trampoline but found no code for: " << PrettyMethod(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1521 | method->SetCode(code); |
| 1522 | } |
| 1523 | method_index++; |
| 1524 | } |
| 1525 | } |
| 1526 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1527 | static void LinkCode(SirtRef<AbstractMethod>& method, const OatFile::OatClass* oat_class, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1528 | uint32_t method_index) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1529 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1530 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1531 | // non-abstract methods also get their code pointers. |
| 1532 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1533 | oat_method.LinkMethodPointers(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1534 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1535 | Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1536 | if (method->IsAbstract()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1537 | method->SetCode(runtime->GetAbstractMethodErrorStubArray()->GetData()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1538 | return; |
| 1539 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1540 | |
| 1541 | if (method->IsStatic() && !method->IsConstructor()) { |
| 1542 | // For static methods excluding the class initializer, install the trampoline |
| 1543 | method->SetCode(runtime->GetResolutionStubArray(Runtime::kStaticMethod)->GetData()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 1544 | } |
| 1545 | if (method->IsNative()) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1546 | // unregistering restores the dlsym lookup stub |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1547 | method->UnregisterNative(Thread::Current()); |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1548 | } |
| 1549 | |
| 1550 | if (Runtime::Current()->IsMethodTracingActive()) { |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1551 | Trace* tracer = Runtime::Current()->GetTracer(); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1552 | tracer->SaveAndUpdateCode(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1553 | } |
| 1554 | } |
| 1555 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1556 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1557 | const DexFile::ClassDef& dex_class_def, |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1558 | SirtRef<Class>& klass, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1559 | ClassLoader* class_loader) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1560 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1561 | CHECK(klass->GetDexCache() != NULL); |
| 1562 | CHECK_EQ(Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1563 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1564 | CHECK(descriptor != NULL); |
| 1565 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1566 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1567 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1568 | // Make sure that none of our runtime-only flags are set. |
| 1569 | CHECK_EQ(access_flags & ~kAccJavaFlagsMask, 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1570 | klass->SetAccessFlags(access_flags); |
| 1571 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1572 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1573 | klass->SetStatus(Class::kStatusIdx); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1574 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1575 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1576 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1577 | // Load fields fields. |
| 1578 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1579 | if (class_data == NULL) { |
| 1580 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1581 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1582 | ClassDataItemIterator it(dex_file, class_data); |
| 1583 | if (it.NumStaticFields() != 0) { |
| 1584 | klass->SetSFields(AllocObjectArray<Field>(it.NumStaticFields())); |
| 1585 | } |
| 1586 | if (it.NumInstanceFields() != 0) { |
| 1587 | klass->SetIFields(AllocObjectArray<Field>(it.NumInstanceFields())); |
| 1588 | } |
| 1589 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
| 1590 | SirtRef<Field> sfield(AllocField()); |
| 1591 | klass->SetStaticField(i, sfield.get()); |
| 1592 | LoadField(dex_file, it, klass, sfield); |
| 1593 | } |
| 1594 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
| 1595 | SirtRef<Field> ifield(AllocField()); |
| 1596 | klass->SetInstanceField(i, ifield.get()); |
| 1597 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1598 | } |
| 1599 | |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1600 | UniquePtr<const OatFile::OatClass> oat_class; |
| 1601 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
| 1602 | oat_class.reset(GetOatClass(dex_file, descriptor)); |
| 1603 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1604 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1605 | // Load methods. |
| 1606 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1607 | // TODO: append direct methods to class object |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1608 | klass->SetDirectMethods(AllocObjectArray<AbstractMethod>(it.NumDirectMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1609 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1610 | if (it.NumVirtualMethods() != 0) { |
| 1611 | // TODO: append direct methods to class object |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1612 | klass->SetVirtualMethods(AllocObjectArray<AbstractMethod>(it.NumVirtualMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1613 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1614 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1615 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1616 | SirtRef<AbstractMethod> method(LoadMethod(dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1617 | klass->SetDirectMethod(i, method.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1618 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1619 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1620 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1621 | method->SetMethodIndex(class_def_method_index); |
| 1622 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1623 | } |
| 1624 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1625 | SirtRef<AbstractMethod> method(LoadMethod(dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1626 | klass->SetVirtualMethod(i, method.get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1627 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1628 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1629 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1630 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1631 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1632 | } |
| 1633 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1634 | } |
| 1635 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1636 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1637 | SirtRef<Class>& klass, SirtRef<Field>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1638 | uint32_t field_idx = it.GetMemberIndex(); |
| 1639 | dst->SetDexFieldIndex(field_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1640 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1641 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1642 | } |
| 1643 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1644 | AbstractMethod* ClassLinker::LoadMethod(const DexFile& dex_file, const ClassDataItemIterator& it, |
| 1645 | SirtRef<Class>& klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1646 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1647 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1648 | StringPiece method_name(dex_file.GetMethodName(method_id)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1649 | |
| 1650 | AbstractMethod* dst = NULL; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1651 | if (method_name == "<init>") { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1652 | dst = AllocConstructor(); |
| 1653 | } else { |
| 1654 | dst = AllocMethod(); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 1655 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1656 | DCHECK(dst->IsMethod()) << PrettyDescriptor(dst->GetClass()); |
| 1657 | |
| 1658 | const char* old_cause = Thread::Current()->StartAssertNoThreadSuspension("LoadMethod"); |
| 1659 | dst->SetDexMethodIndex(dex_method_idx); |
| 1660 | dst->SetDeclaringClass(klass.get()); |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1661 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1662 | if (method_name == "finalize") { |
| 1663 | // Create the prototype for a signature of "()V" |
| 1664 | const DexFile::StringId* void_string_id = dex_file.FindStringId("V"); |
| 1665 | if (void_string_id != NULL) { |
| 1666 | const DexFile::TypeId* void_type_id = |
| 1667 | dex_file.FindTypeId(dex_file.GetIndexForStringId(*void_string_id)); |
| 1668 | if (void_type_id != NULL) { |
| 1669 | std::vector<uint16_t> no_args; |
| 1670 | const DexFile::ProtoId* finalizer_proto = |
| 1671 | dex_file.FindProtoId(dex_file.GetIndexForTypeId(*void_type_id), no_args); |
| 1672 | if (finalizer_proto != NULL) { |
| 1673 | // We have the prototype in the dex file |
| 1674 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 1675 | klass->SetFinalizable(); |
| 1676 | } else { |
| 1677 | StringPiece klass_descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 1678 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 1679 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 1680 | // subclasses, so we exclude it here. |
| 1681 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 1682 | // empty. |
| 1683 | if (klass_descriptor != "Ljava/lang/Object;" && |
| 1684 | klass_descriptor != "Ljava/lang/Enum;") { |
| 1685 | klass->SetFinalizable(); |
| 1686 | } |
| 1687 | } |
| 1688 | } |
| 1689 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1690 | } |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 1691 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1692 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1693 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1694 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1695 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1696 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1697 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1698 | dst->SetDexCacheInitializedStaticStorage(klass->GetDexCache()->GetInitializedStaticStorage()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1699 | |
| 1700 | CHECK(dst->IsMethod()); |
| 1701 | |
| 1702 | Thread::Current()->EndAssertNoThreadSuspension(old_cause); |
| 1703 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1704 | } |
| 1705 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1706 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1707 | SirtRef<DexCache> dex_cache(AllocDexCache(dex_file)); |
| 1708 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1709 | } |
| 1710 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1711 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
| 1712 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1713 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1714 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1715 | } |
| 1716 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1717 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1718 | dex_lock_.AssertHeld(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1719 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1720 | if (dex_caches_[i]->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1721 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1722 | } |
| 1723 | } |
| 1724 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1725 | } |
| 1726 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1727 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1728 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 1729 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1730 | } |
| 1731 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1732 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1733 | dex_lock_.AssertHeld(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1734 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 1735 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1736 | dex_caches_.push_back(dex_cache.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1737 | dex_cache->SetDexFile(&dex_file); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1738 | } |
| 1739 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1740 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1741 | { |
| 1742 | MutexLock mu(dex_lock_); |
| 1743 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1744 | return; |
| 1745 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1746 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1747 | // Don't alloc while holding the lock, since allocation may need to |
| 1748 | // suspend all threads and another thread may need the dex_lock_ to |
| 1749 | // get to a suspend point. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1750 | SirtRef<DexCache> dex_cache(AllocDexCache(dex_file)); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1751 | { |
| 1752 | MutexLock mu(dex_lock_); |
| 1753 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1754 | return; |
| 1755 | } |
| 1756 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1757 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1758 | } |
| 1759 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1760 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1761 | MutexLock mu(dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1762 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1763 | } |
| 1764 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1765 | // TODO: Remove. |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1766 | const DexFile& ClassLinker::FindDexFile(const DexCache* dex_cache) const { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 1767 | CHECK(dex_cache != NULL); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1768 | const DexFile* dex_file = dex_cache->GetDexFile(); |
| 1769 | if (dex_file == NULL) { |
| 1770 | LOG(FATAL) << "DexCache has no DexFile " << dex_cache->GetLocation()->ToModifiedUtf8(); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1771 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1772 | return *dex_file; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1773 | } |
| 1774 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1775 | DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1776 | MutexLock mu(dex_lock_); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1777 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1778 | DexCache* dex_cache = dex_caches_[i]; |
| 1779 | if (dex_cache->GetDexFile() == &dex_file) { |
| 1780 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1781 | } |
| 1782 | } |
Elliott Hughes | 7b9d996 | 2012-04-20 18:48:18 -0700 | [diff] [blame] | 1783 | LOG(FATAL) << "Failed to find DexCache for DexFile " << dex_file.GetLocation(); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1784 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1785 | } |
| 1786 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1787 | void ClassLinker::FixupDexCaches(AbstractMethod* resolution_method) const { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1788 | MutexLock mu(dex_lock_); |
| 1789 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1790 | dex_caches_[i]->Fixup(resolution_method); |
| 1791 | } |
| 1792 | } |
| 1793 | |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1794 | Class* ClassLinker::InitializePrimitiveClass(Class* primitive_class, Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1795 | CHECK(primitive_class != NULL); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1796 | ObjectLock lock(primitive_class); // Must hold lock on object when initializing. |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1797 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1798 | primitive_class->SetPrimitiveType(type); |
| 1799 | primitive_class->SetStatus(Class::kStatusInitialized); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1800 | Class* existing = InsertClass(Primitive::Descriptor(type), primitive_class, false); |
| 1801 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1802 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 1803 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1804 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1805 | // Create an array class (i.e. the class object for the array, not the |
| 1806 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 1807 | // "[Ljava/lang/String;". |
| 1808 | // |
| 1809 | // If "descriptor" refers to an array of primitives, look up the |
| 1810 | // primitive type's internally-generated class object. |
| 1811 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1812 | // "class_loader" is the class loader of the class that's referring to |
| 1813 | // us. It's used to ensure that we're looking for the element type in |
| 1814 | // the right context. It does NOT become the class loader for the |
| 1815 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1816 | // |
| 1817 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1818 | Class* ClassLinker::CreateArrayClass(const std::string& descriptor, ClassLoader* class_loader) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1819 | CHECK_EQ('[', descriptor[0]); |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1820 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1821 | // Identify the underlying component type |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1822 | Class* component_type = FindClass(descriptor.substr(1).c_str(), class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1823 | if (component_type == NULL) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1824 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1825 | return NULL; |
| 1826 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1827 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1828 | // See if the component type is already loaded. Array classes are |
| 1829 | // always associated with the class loader of their underlying |
| 1830 | // element type -- an array of Strings goes with the loader for |
| 1831 | // java/lang/String -- so we need to look for it there. (The |
| 1832 | // caller should have checked for the existence of the class |
| 1833 | // before calling here, but they did so with *their* class loader, |
| 1834 | // not the component type's loader.) |
| 1835 | // |
| 1836 | // If we find it, the caller adds "loader" to the class' initiating |
| 1837 | // loader list, which should prevent us from going through this again. |
| 1838 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1839 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1840 | // are the same, because our caller (FindClass) just did the |
| 1841 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 1842 | // because we effectively do this lookup again when we add the new |
| 1843 | // class to the hash table --- necessary because of possible races with |
| 1844 | // other threads.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1845 | if (class_loader != component_type->GetClassLoader()) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1846 | Class* new_class = LookupClass(descriptor.c_str(), component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1847 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1848 | return new_class; |
| 1849 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1850 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1851 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1852 | // Fill out the fields in the Class. |
| 1853 | // |
| 1854 | // It is possible to execute some methods against arrays, because |
| 1855 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 1856 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 1857 | // |
| 1858 | // Array classes are simple enough that we don't need to do a full |
| 1859 | // link step. |
| 1860 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1861 | SirtRef<Class> new_class(NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1862 | if (!init_done_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1863 | // Classes that were hand created, ie not by FindSystemClass |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1864 | if (descriptor == "[Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1865 | new_class.reset(GetClassRoot(kClassArrayClass)); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1866 | } else if (descriptor == "[Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1867 | new_class.reset(GetClassRoot(kObjectArrayClass)); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 1868 | } else if (descriptor == "[[Ljava/lang/Object;") { |
| 1869 | new_class.reset(GetClassRoot(kObjectArrayArrayClass)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1870 | } else if (descriptor == class_roots_descriptors_[kJavaLangStringArrayClass]) { |
| 1871 | new_class.reset(GetClassRoot(kJavaLangStringArrayClass)); |
| 1872 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectFieldArrayClass]) { |
| 1873 | new_class.reset(GetClassRoot(kJavaLangReflectFieldArrayClass)); |
| 1874 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]) { |
| 1875 | new_class.reset(GetClassRoot(kJavaLangReflectAbstractMethodArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1876 | } else if (descriptor == "[C") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1877 | new_class.reset(GetClassRoot(kCharArrayClass)); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1878 | } else if (descriptor == "[I") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1879 | new_class.reset(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1880 | } |
| 1881 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1882 | if (new_class.get() == NULL) { |
| 1883 | new_class.reset(AllocClass(sizeof(Class))); |
| 1884 | if (new_class.get() == NULL) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1885 | return NULL; |
| 1886 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1887 | new_class->SetComponentType(component_type); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1888 | } |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1889 | ObjectLock lock(new_class.get()); // Must hold lock on object when initializing. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1890 | DCHECK(new_class->GetComponentType() != NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1891 | Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1892 | new_class->SetSuperClass(java_lang_Object); |
| 1893 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1894 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1895 | new_class->SetClassLoader(component_type->GetClassLoader()); |
| 1896 | new_class->SetStatus(Class::kStatusInitialized); |
| 1897 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1898 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1899 | |
| 1900 | |
| 1901 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 1902 | // interfaces. We need to set that up here, so that stuff like |
| 1903 | // "instanceof" works right. |
| 1904 | // |
| 1905 | // Note: The GC could run during the call to FindSystemClass, |
| 1906 | // so we need to make sure the class object is GC-valid while we're in |
| 1907 | // there. Do this by clearing the interface list so the GC will just |
| 1908 | // think that the entries are null. |
| 1909 | |
| 1910 | |
| 1911 | // Use the single, global copies of "interfaces" and "iftable" |
| 1912 | // (remember not to free them for arrays). |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1913 | CHECK(array_iftable_ != NULL); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1914 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1915 | |
| 1916 | // Inherit access flags from the component type. Arrays can't be |
| 1917 | // used as a superclass or interface, so we want to add "final" |
| 1918 | // and remove "interface". |
| 1919 | // |
| 1920 | // Don't inherit any non-standard flags (e.g., kAccFinal) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1921 | // from component_type. We assume that the array class does not |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1922 | // override finalize(). |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1923 | new_class->SetAccessFlags(((new_class->GetComponentType()->GetAccessFlags() & |
| 1924 | ~kAccInterface) | kAccFinal) & kAccJavaFlagsMask); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1925 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1926 | Class* existing = InsertClass(descriptor, new_class.get(), false); |
| 1927 | if (existing == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1928 | return new_class.get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1929 | } |
| 1930 | // Another thread must have loaded the class after we |
| 1931 | // started but before we finished. Abandon what we've |
| 1932 | // done. |
| 1933 | // |
| 1934 | // (Yes, this happens.) |
| 1935 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1936 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1937 | } |
| 1938 | |
| 1939 | Class* ClassLinker::FindPrimitiveClass(char type) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1940 | switch (Primitive::GetType(type)) { |
| 1941 | case Primitive::kPrimByte: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1942 | return GetClassRoot(kPrimitiveByte); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1943 | case Primitive::kPrimChar: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1944 | return GetClassRoot(kPrimitiveChar); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1945 | case Primitive::kPrimDouble: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1946 | return GetClassRoot(kPrimitiveDouble); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1947 | case Primitive::kPrimFloat: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1948 | return GetClassRoot(kPrimitiveFloat); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1949 | case Primitive::kPrimInt: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1950 | return GetClassRoot(kPrimitiveInt); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1951 | case Primitive::kPrimLong: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1952 | return GetClassRoot(kPrimitiveLong); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1953 | case Primitive::kPrimShort: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1954 | return GetClassRoot(kPrimitiveShort); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1955 | case Primitive::kPrimBoolean: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1956 | return GetClassRoot(kPrimitiveBoolean); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1957 | case Primitive::kPrimVoid: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1958 | return GetClassRoot(kPrimitiveVoid); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1959 | case Primitive::kPrimNot: |
| 1960 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 1961 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 1962 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1963 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 1964 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1965 | } |
| 1966 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1967 | Class* ClassLinker::InsertClass(const StringPiece& descriptor, Class* klass, bool image_class) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1968 | if (VLOG_IS_ON(class_linker)) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1969 | DexCache* dex_cache = klass->GetDexCache(); |
| 1970 | std::string source; |
| 1971 | if (dex_cache != NULL) { |
| 1972 | source += " from "; |
| 1973 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 1974 | } |
| 1975 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 1976 | } |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1977 | size_t hash = StringPieceHash()(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1978 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1979 | Table& classes = image_class ? image_classes_ : classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1980 | Class* existing = LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, classes); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1981 | #ifndef NDEBUG |
| 1982 | // Check we don't have the class in the other table in error |
| 1983 | Table& other_classes = image_class ? classes_ : image_classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1984 | CHECK(LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, other_classes) == NULL); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1985 | #endif |
| 1986 | if (existing != NULL) { |
| 1987 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 1988 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1989 | classes.insert(std::make_pair(hash, klass)); |
| 1990 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1991 | } |
| 1992 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1993 | bool ClassLinker::RemoveClass(const char* descriptor, const ClassLoader* class_loader) { |
| 1994 | size_t hash = Hash(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1995 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | e5448b5 | 2012-01-18 16:44:06 -0800 | [diff] [blame] | 1996 | typedef Table::iterator It; // TODO: C++0x auto |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1997 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1998 | ClassHelper kh; |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1999 | 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] | 2000 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2001 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2002 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2003 | classes_.erase(it); |
| 2004 | return true; |
| 2005 | } |
| 2006 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2007 | 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] | 2008 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2009 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2010 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2011 | image_classes_.erase(it); |
| 2012 | return true; |
| 2013 | } |
| 2014 | } |
| 2015 | return false; |
| 2016 | } |
| 2017 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2018 | Class* ClassLinker::LookupClass(const char* descriptor, const ClassLoader* class_loader) { |
| 2019 | size_t hash = Hash(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2020 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2021 | // TODO: determine if its better to search classes_ or image_classes_ first |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2022 | Class* klass = LookupClassLocked(descriptor, class_loader, hash, classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2023 | if (klass != NULL) { |
| 2024 | return klass; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2025 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2026 | return LookupClassLocked(descriptor, class_loader, hash, image_classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2027 | } |
| 2028 | |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2029 | Class* ClassLinker::LookupClassLocked(const char* descriptor, const ClassLoader* class_loader, |
| 2030 | size_t hash, const Table& classes) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2031 | ClassHelper kh(NULL, this); |
| 2032 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2033 | 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] | 2034 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2035 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2036 | if (strcmp(descriptor, kh.GetDescriptor()) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2037 | #ifndef NDEBUG |
| 2038 | for (++it; it != end && it->first == hash; ++it) { |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2039 | Class* klass2 = it->second; |
| 2040 | kh.ChangeClass(klass2); |
| 2041 | CHECK(!(strcmp(descriptor, kh.GetDescriptor()) == 0 && klass2->GetClassLoader() == class_loader)) |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2042 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2043 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2044 | } |
| 2045 | #endif |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2046 | return klass; |
| 2047 | } |
| 2048 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2049 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2050 | } |
| 2051 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2052 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<Class*>& classes) { |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2053 | classes.clear(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2054 | size_t hash = Hash(descriptor); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2055 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2056 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2057 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2058 | ClassHelper kh(NULL, this); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2059 | 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] | 2060 | Class* klass = it->second; |
| 2061 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2062 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2063 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2064 | } |
| 2065 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2066 | 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] | 2067 | Class* klass = it->second; |
| 2068 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2069 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2070 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2071 | } |
| 2072 | } |
| 2073 | } |
| 2074 | |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2075 | void ClassLinker::VerifyClass(Class* klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2076 | // TODO: assert that the monitor on the Class is held |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2077 | ObjectLock lock(klass); |
| 2078 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2079 | // Don't attempt to re-verify if already sufficiently verified. |
| 2080 | if (klass->IsVerified() || |
| 2081 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2082 | return; |
| 2083 | } |
| 2084 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2085 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2086 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2087 | if (klass->IsErroneous()) { |
| 2088 | ThrowEarlierClassFailure(klass); |
| 2089 | return; |
| 2090 | } |
| 2091 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2092 | if (klass->GetStatus() == Class::kStatusResolved) { |
| 2093 | klass->SetStatus(Class::kStatusVerifying); |
| 2094 | } else { |
| 2095 | CHECK_EQ(klass->GetStatus(), Class::kStatusRetryVerificationAtRuntime) << PrettyClass(klass); |
| 2096 | CHECK(!Runtime::Current()->IsCompiler()); |
| 2097 | klass->SetStatus(Class::kStatusVerifyingAtRuntime); |
| 2098 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2099 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2100 | // Verify super class. |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2101 | Class* super = klass->GetSuperClass(); |
| 2102 | std::string error_msg; |
| 2103 | if (super != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2104 | // Acquire lock to prevent races on verifying the super class. |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2105 | ObjectLock lock(super); |
| 2106 | |
| 2107 | if (!super->IsVerified() && !super->IsErroneous()) { |
| 2108 | Runtime::Current()->GetClassLinker()->VerifyClass(super); |
| 2109 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2110 | if (!super->IsCompileTimeVerified()) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2111 | error_msg = "Rejecting class "; |
| 2112 | error_msg += PrettyDescriptor(klass); |
| 2113 | error_msg += " that attempts to sub-class erroneous class "; |
| 2114 | error_msg += PrettyDescriptor(super); |
| 2115 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
| 2116 | Thread* self = Thread::Current(); |
| 2117 | SirtRef<Throwable> cause(self->GetException()); |
| 2118 | if (cause.get() != NULL) { |
| 2119 | self->ClearException(); |
| 2120 | } |
| 2121 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2122 | if (cause.get() != NULL) { |
| 2123 | self->GetException()->SetCause(cause.get()); |
| 2124 | } |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2125 | klass->SetStatus(Class::kStatusError); |
| 2126 | return; |
| 2127 | } |
| 2128 | } |
| 2129 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2130 | // 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] | 2131 | const DexFile& dex_file = FindDexFile(klass->GetDexCache()); |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2132 | Class::Status oat_file_class_status(Class::kStatusNotReady); |
| 2133 | bool preverified = VerifyClassUsingOatFile(dex_file, klass, oat_file_class_status); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2134 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2135 | if (oat_file_class_status == Class::kStatusError) { |
| 2136 | LOG(WARNING) << "Skipping runtime verification of erroneous class " << PrettyDescriptor(klass) |
| 2137 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
| 2138 | error_msg = "Rejecting class "; |
| 2139 | error_msg += PrettyDescriptor(klass); |
| 2140 | error_msg += " because it failed compile-time verification"; |
| 2141 | Thread::Current()->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2142 | klass->SetStatus(Class::kStatusError); |
| 2143 | return; |
| 2144 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2145 | if (!preverified) { |
| 2146 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass, error_msg); |
| 2147 | } |
| 2148 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2149 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
| 2150 | LOG(WARNING) << "Soft verification failure in class " << PrettyDescriptor(klass) |
| 2151 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2152 | << " because: " << error_msg; |
| 2153 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2154 | Thread::Current()->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2155 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2156 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2157 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
| 2158 | klass->SetStatus(Class::kStatusVerified); |
| 2159 | } else { |
| 2160 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2161 | // Soft failures at compile time should be retried at runtime. Soft |
| 2162 | // failures at runtime will be handled by slow paths in the generated |
| 2163 | // code. Set status accordingly. |
| 2164 | if (Runtime::Current()->IsCompiler()) { |
| 2165 | klass->SetStatus(Class::kStatusRetryVerificationAtRuntime); |
| 2166 | } else { |
| 2167 | klass->SetStatus(Class::kStatusVerified); |
| 2168 | } |
| 2169 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2170 | } else { |
Ian Rogers | 09f6b56 | 2012-01-31 21:58:52 -0800 | [diff] [blame] | 2171 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2172 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2173 | << " because: " << error_msg; |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 2174 | Thread* self = Thread::Current(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2175 | self->AssertNoPendingException(); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2176 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 2177 | klass->SetStatus(Class::kStatusError); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2178 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2179 | } |
| 2180 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2181 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, Class* klass, |
| 2182 | Class::Status& oat_file_class_status) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2183 | if (!Runtime::Current()->IsStarted()) { |
| 2184 | return false; |
| 2185 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 2186 | if (Runtime::Current()->UseCompileTimeClassPath()) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2187 | return false; |
| 2188 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2189 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 2190 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2191 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2192 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2193 | const char* descriptor = ClassHelper(klass).GetDescriptor(); |
| 2194 | uint32_t class_def_index; |
| 2195 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2196 | CHECK(found) << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2197 | 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] | 2198 | CHECK(oat_class.get() != NULL) |
| 2199 | << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2200 | oat_file_class_status = oat_class->GetStatus(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2201 | if (oat_file_class_status == Class::kStatusVerified || |
| 2202 | oat_file_class_status == Class::kStatusInitialized) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2203 | return true; |
| 2204 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2205 | if (oat_file_class_status == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2206 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2207 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2208 | // class ... { |
| 2209 | // Foo x; |
| 2210 | // .... () { |
| 2211 | // if (...) { |
| 2212 | // v1 gets assigned a type of resolved class Foo |
| 2213 | // } else { |
| 2214 | // v1 gets assigned a type of unresolved class Bar |
| 2215 | // } |
| 2216 | // iput x = v1 |
| 2217 | // } } |
| 2218 | // when we merge v1 following the if-the-else it results in Conflict |
| 2219 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2220 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2221 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2222 | // at compile time). |
| 2223 | return false; |
| 2224 | } |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2225 | if (oat_file_class_status == Class::kStatusError) { |
| 2226 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2227 | // in the class. These errors are unrecoverable. |
| 2228 | return false; |
| 2229 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2230 | if (oat_file_class_status == Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2231 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2232 | // not loading the class. |
| 2233 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2234 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2235 | return false; |
| 2236 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2237 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2238 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
| 2239 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2240 | return false; |
| 2241 | } |
| 2242 | |
| 2243 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, Class* klass) { |
| 2244 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 2245 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 2246 | } |
| 2247 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 2248 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 2249 | } |
| 2250 | } |
| 2251 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2252 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, AbstractMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2253 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 2254 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 2255 | if (code_item == NULL) { |
| 2256 | return; // native or abstract method |
| 2257 | } |
| 2258 | if (code_item->tries_size_ == 0) { |
| 2259 | return; // nothing to process |
| 2260 | } |
| 2261 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 2262 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 2263 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 2264 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 2265 | CatchHandlerIterator iterator(handlers_ptr); |
| 2266 | for (; iterator.HasNext(); iterator.Next()) { |
| 2267 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 2268 | // unresolved exception types will be ignored by exception delivery |
| 2269 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
| 2270 | Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
| 2271 | if (exception_type == NULL) { |
| 2272 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2273 | Thread::Current()->ClearException(); |
| 2274 | } |
| 2275 | } |
| 2276 | } |
| 2277 | handlers_ptr = iterator.EndDataPointer(); |
| 2278 | } |
| 2279 | } |
| 2280 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2281 | static void CheckProxyConstructor(AbstractMethod* constructor); |
| 2282 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2283 | |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2284 | Class* ClassLinker::CreateProxyClass(String* name, ObjectArray<Class>* interfaces, |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2285 | ClassLoader* loader, ObjectArray<AbstractMethod>* methods, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2286 | ObjectArray<ObjectArray<Class> >* throws) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2287 | SirtRef<Class> klass(AllocClass(GetClassRoot(kJavaLangClass), sizeof(SynthesizedProxyClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2288 | CHECK(klass.get() != NULL); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2289 | DCHECK(klass->GetClass() != NULL); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2290 | klass->SetObjectSize(sizeof(Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2291 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2292 | klass->SetClassLoader(loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2293 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2294 | klass->SetName(name); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2295 | Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2296 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2297 | |
| 2298 | klass->SetStatus(Class::kStatusIdx); |
| 2299 | |
| 2300 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); |
| 2301 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2302 | // Instance fields are inherited, but we add a couple of static fields... |
| 2303 | klass->SetSFields(AllocObjectArray<Field>(2)); |
| 2304 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 2305 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
| 2306 | SirtRef<Field> interfaces_sfield(AllocField()); |
| 2307 | klass->SetStaticField(0, interfaces_sfield.get()); |
| 2308 | interfaces_sfield->SetDexFieldIndex(0); |
| 2309 | interfaces_sfield->SetDeclaringClass(klass.get()); |
| 2310 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 2311 | // 2. Create a static field 'throws' that holds exceptions thrown by our methods. |
| 2312 | SirtRef<Field> throws_sfield(AllocField()); |
| 2313 | klass->SetStaticField(1, throws_sfield.get()); |
| 2314 | throws_sfield->SetDexFieldIndex(1); |
| 2315 | throws_sfield->SetDeclaringClass(klass.get()); |
| 2316 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2317 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2318 | // Proxies have 1 direct method, the constructor |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2319 | klass->SetDirectMethods(AllocObjectArray<AbstractMethod>(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2320 | klass->SetDirectMethod(0, CreateProxyConstructor(klass, proxy_class)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2321 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2322 | // Create virtual method using specified prototypes |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2323 | size_t num_virtual_methods = methods->GetLength(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2324 | klass->SetVirtualMethods(AllocObjectArray<AbstractMethod>(num_virtual_methods)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2325 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2326 | SirtRef<AbstractMethod> prototype(methods->Get(i)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2327 | klass->SetVirtualMethod(i, CreateProxyMethod(klass, prototype)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2328 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2329 | |
| 2330 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
| 2331 | klass->SetStatus(Class::kStatusLoaded); // Class is now effectively in the loaded state |
| 2332 | DCHECK(!Thread::Current()->IsExceptionPending()); |
| 2333 | |
| 2334 | // Link the fields and virtual methods, creating vtable and iftables |
| 2335 | if (!LinkClass(klass, interfaces)) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2336 | klass->SetStatus(Class::kStatusError); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2337 | return NULL; |
| 2338 | } |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2339 | { |
| 2340 | ObjectLock lock(klass.get()); // Must hold lock on object when initializing. |
| 2341 | interfaces_sfield->SetObject(NULL, interfaces); |
| 2342 | throws_sfield->SetObject(NULL, throws); |
| 2343 | klass->SetStatus(Class::kStatusInitialized); |
| 2344 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2345 | |
| 2346 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 2347 | if (kIsDebugBuild) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2348 | CHECK(klass->GetIFields() == NULL); |
| 2349 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2350 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2351 | SirtRef<AbstractMethod> prototype(methods->Get(i)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2352 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2353 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2354 | |
| 2355 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
| 2356 | name->ToModifiedUtf8().c_str())); |
| 2357 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 2358 | |
| 2359 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
| 2360 | name->ToModifiedUtf8().c_str())); |
| 2361 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2362 | |
| 2363 | SynthesizedProxyClass* synth_proxy_class = down_cast<SynthesizedProxyClass*>(klass.get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2364 | CHECK_EQ(synth_proxy_class->GetInterfaces(), interfaces); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2365 | CHECK_EQ(synth_proxy_class->GetThrows(), throws); |
| 2366 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2367 | return klass.get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2368 | } |
| 2369 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2370 | std::string ClassLinker::GetDescriptorForProxy(const Class* proxy_class) { |
| 2371 | DCHECK(proxy_class->IsProxyClass()); |
| 2372 | String* name = proxy_class->GetName(); |
| 2373 | DCHECK(name != NULL); |
| 2374 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2375 | } |
| 2376 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2377 | AbstractMethod* ClassLinker::FindMethodForProxy(const Class* proxy_class, const AbstractMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2378 | DCHECK(proxy_class->IsProxyClass()); |
| 2379 | DCHECK(proxy_method->IsProxyMethod()); |
| 2380 | // Locate the dex cache of the original interface/Object |
| 2381 | DexCache* dex_cache = NULL; |
| 2382 | { |
| 2383 | ObjectArray<Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
| 2384 | MutexLock mu(dex_lock_); |
| 2385 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2386 | if (dex_caches_[i]->GetResolvedTypes() == resolved_types) { |
| 2387 | dex_cache = dex_caches_[i]; |
| 2388 | break; |
| 2389 | } |
| 2390 | } |
| 2391 | } |
| 2392 | CHECK(dex_cache != NULL); |
| 2393 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2394 | AbstractMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2395 | CHECK(resolved_method != NULL); |
| 2396 | return resolved_method; |
| 2397 | } |
| 2398 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2399 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2400 | AbstractMethod* ClassLinker::CreateProxyConstructor(SirtRef<Class>& klass, Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2401 | // Create constructor for Proxy that must initialize h |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2402 | ObjectArray<AbstractMethod>* proxy_direct_methods = proxy_class->GetDirectMethods(); |
Jesse Wilson | ecbce8f | 2011-10-21 19:57:36 -0400 | [diff] [blame] | 2403 | CHECK_EQ(proxy_direct_methods->GetLength(), 15); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2404 | AbstractMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2405 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2406 | // code_ too) |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2407 | AbstractMethod* constructor = down_cast<AbstractMethod*>(proxy_constructor->Clone()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2408 | // Make this constructor public and fix the class to be our Proxy version |
| 2409 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2410 | constructor->SetDeclaringClass(klass.get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2411 | return constructor; |
| 2412 | } |
| 2413 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2414 | static void CheckProxyConstructor(AbstractMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2415 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2416 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2417 | MethodHelper mh(constructor); |
| 2418 | CHECK_STREQ(mh.GetName(), "<init>"); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 2419 | CHECK_EQ(mh.GetSignature(), std::string("(Ljava/lang/reflect/InvocationHandler;)V")); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2420 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2421 | } |
| 2422 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2423 | AbstractMethod* ClassLinker::CreateProxyMethod(SirtRef<Class>& klass, SirtRef<AbstractMethod>& prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2424 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 2425 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2426 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
| 2427 | prototype.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2428 | // 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] | 2429 | // as necessary |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2430 | AbstractMethod* method = down_cast<AbstractMethod*>(prototype->Clone()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2431 | |
| 2432 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 2433 | // the intersection of throw exceptions as defined in Proxy |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2434 | method->SetDeclaringClass(klass.get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2435 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2436 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2437 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 2438 | // related parameters from this method. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2439 | AbstractMethod* refs_and_args = Runtime::Current()->GetCalleeSaveMethod(Runtime::kRefsAndArgs); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2440 | method->SetCoreSpillMask(refs_and_args->GetCoreSpillMask()); |
| 2441 | method->SetFpSpillMask(refs_and_args->GetFpSpillMask()); |
| 2442 | method->SetFrameSizeInBytes(refs_and_args->GetFrameSizeInBytes()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2443 | #if !defined(ART_USE_LLVM_COMPILER) |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2444 | method->SetCode(reinterpret_cast<void*>(art_proxy_invoke_handler)); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2445 | #else |
Logan Chien | 7a2a23a | 2012-06-06 11:01:00 +0800 | [diff] [blame] | 2446 | OatFile::OatMethod oat_method = GetOatMethodFor(prototype.get()); |
| 2447 | method->SetCode(oat_method.GetProxyStub()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2448 | #endif |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2449 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2450 | return method; |
| 2451 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2452 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2453 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2454 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2455 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2456 | CHECK(!prototype->IsFinal()); |
| 2457 | CHECK(method->IsFinal()); |
| 2458 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2459 | |
| 2460 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 2461 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 2462 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 2463 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 2464 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
| 2465 | CHECK_EQ(prototype->GetDexCacheInitializedStaticStorage(), |
| 2466 | method->GetDexCacheInitializedStaticStorage()); |
| 2467 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 2468 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2469 | MethodHelper mh(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2470 | MethodHelper mh2(prototype.get()); |
| 2471 | CHECK_STREQ(mh.GetName(), mh2.GetName()); |
| 2472 | CHECK_STREQ(mh.GetShorty(), mh2.GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2473 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2474 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2475 | } |
| 2476 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2477 | 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] | 2478 | CHECK(klass->IsResolved() || klass->IsErroneous()) |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2479 | << PrettyClass(klass) << ": state=" << klass->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2480 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2481 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2482 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2483 | AbstractMethod* clinit = NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2484 | { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2485 | // 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] | 2486 | ObjectLock lock(klass); |
| 2487 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2488 | if (klass->GetStatus() == Class::kStatusInitialized) { |
| 2489 | return true; |
| 2490 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2491 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2492 | if (klass->IsErroneous()) { |
| 2493 | ThrowEarlierClassFailure(klass); |
| 2494 | return false; |
| 2495 | } |
| 2496 | |
jeffhao | ebe2e0f | 2012-06-06 15:19:40 -0700 | [diff] [blame] | 2497 | if (klass->GetStatus() == Class::kStatusResolved || |
| 2498 | klass->GetStatus() == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2499 | VerifyClass(klass); |
| 2500 | if (klass->GetStatus() != Class::kStatusVerified) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 2501 | if (klass->GetStatus() == Class::kStatusError) { |
| 2502 | CHECK(self->IsExceptionPending()); |
| 2503 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2504 | return false; |
| 2505 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2506 | } |
| 2507 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2508 | clinit = klass->FindDeclaredDirectMethod("<clinit>", "()V"); |
| 2509 | if (clinit != NULL && !can_run_clinit) { |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame^] | 2510 | DCHECK_EQ(klass->GetStatus(), Class::kStatusVerified) << PrettyClass(klass); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2511 | // 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] | 2512 | // don't bother going to kStatusInitializing. We return false so that |
| 2513 | // sub-classes don't believe this class is initialized. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2514 | // Opportunistically link non-static methods, TODO: don't initialize and dirty pages |
| 2515 | // in second pass. |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2516 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2517 | } |
| 2518 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2519 | // If the class is kStatusInitializing, either this thread is |
| 2520 | // initializing higher up the stack or another thread has beat us |
| 2521 | // to initializing and we need to wait. Either way, this |
| 2522 | // invocation of InitializeClass will not be responsible for |
| 2523 | // running <clinit> and will return. |
| 2524 | if (klass->GetStatus() == Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 2525 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2526 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2527 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2528 | return true; |
| 2529 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2530 | // No. That's fine. Wait for another thread to finish initializing. |
| 2531 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2532 | } |
| 2533 | |
| 2534 | if (!ValidateSuperClassDescriptors(klass)) { |
| 2535 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame^] | 2536 | lock.NotifyAll(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2537 | return false; |
| 2538 | } |
| 2539 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2540 | DCHECK_EQ(klass->GetStatus(), Class::kStatusVerified) << PrettyClass(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2541 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2542 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2543 | klass->SetStatus(Class::kStatusInitializing); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2544 | } |
| 2545 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2546 | uint64_t t0 = NanoTime(); |
| 2547 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2548 | if (!InitializeSuperClass(klass, can_run_clinit, can_init_statics)) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2549 | // Super class initialization failed, this can be because we can't run |
| 2550 | // super-class class initializers in which case we'll be verified. |
| 2551 | // Otherwise this class is erroneous. |
| 2552 | if (!can_run_clinit) { |
| 2553 | CHECK(klass->IsVerified()); |
| 2554 | } else { |
| 2555 | CHECK(klass->IsErroneous()); |
| 2556 | } |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame^] | 2557 | // Signal to any waiting threads that saw this class as initializing. |
| 2558 | ObjectLock lock(klass); |
| 2559 | lock.NotifyAll(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2560 | return false; |
| 2561 | } |
| 2562 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2563 | bool has_static_field_initializers = InitializeStaticFields(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2564 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2565 | if (clinit != NULL) { |
Elliott Hughes | f5ecf06 | 2011-09-06 17:37:59 -0700 | [diff] [blame] | 2566 | clinit->Invoke(self, NULL, NULL, NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2567 | } |
| 2568 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2569 | FixupStaticTrampolines(klass); |
| 2570 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2571 | uint64_t t1 = NanoTime(); |
| 2572 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2573 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2574 | { |
| 2575 | ObjectLock lock(klass); |
| 2576 | |
| 2577 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2578 | WrapExceptionInInitializer(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2579 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2580 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2581 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2582 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 2583 | RuntimeStats* thread_stats = self->GetStats(); |
| 2584 | ++global_stats->class_init_count; |
| 2585 | ++thread_stats->class_init_count; |
| 2586 | global_stats->class_init_time_ns += (t1 - t0); |
| 2587 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2588 | // Set the class as initialized except if we can't initialize static fields and static field |
| 2589 | // initialization is necessary. |
| 2590 | if (!can_init_statics && has_static_field_initializers) { |
| 2591 | klass->SetStatus(Class::kStatusVerified); // Don't leave class in initializing state. |
| 2592 | success = false; |
| 2593 | } else { |
| 2594 | klass->SetStatus(Class::kStatusInitialized); |
| 2595 | } |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2596 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2597 | ClassHelper kh(klass); |
| 2598 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2599 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2600 | } |
| 2601 | lock.NotifyAll(); |
| 2602 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2603 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2604 | } |
| 2605 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2606 | bool ClassLinker::WaitForInitializeClass(Class* klass, Thread* self, ObjectLock& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2607 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2608 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2609 | self->AssertNoPendingException(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2610 | lock.Wait(); |
| 2611 | |
| 2612 | // When we wake up, repeat the test for init-in-progress. If |
| 2613 | // there's an exception pending (only possible if |
| 2614 | // "interruptShouldThrow" was set), bail out. |
| 2615 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2616 | WrapExceptionInInitializer(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2617 | klass->SetStatus(Class::kStatusError); |
| 2618 | return false; |
| 2619 | } |
| 2620 | // Spurious wakeup? Go back to waiting. |
| 2621 | if (klass->GetStatus() == Class::kStatusInitializing) { |
| 2622 | continue; |
| 2623 | } |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame^] | 2624 | if (klass->GetStatus() == Class::kStatusVerified && Runtime::Current()->IsCompiler()) { |
| 2625 | // Compile time initialization failed. |
| 2626 | return false; |
| 2627 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2628 | if (klass->IsErroneous()) { |
| 2629 | // The caller wants an exception, but it was thrown in a |
| 2630 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 2631 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2632 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2633 | return false; |
| 2634 | } |
| 2635 | if (klass->IsInitialized()) { |
| 2636 | return true; |
| 2637 | } |
| 2638 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass) << " is " << klass->GetStatus(); |
| 2639 | } |
| 2640 | LOG(FATAL) << "Not Reached" << PrettyClass(klass); |
| 2641 | } |
| 2642 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2643 | bool ClassLinker::ValidateSuperClassDescriptors(const Class* klass) { |
| 2644 | if (klass->IsInterface()) { |
| 2645 | return true; |
| 2646 | } |
| 2647 | // begin with the methods local to the superclass |
| 2648 | if (klass->HasSuperClass() && |
| 2649 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
| 2650 | const Class* super = klass->GetSuperClass(); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2651 | for (int i = super->GetVTable()->GetLength() - 1; i >= 0; --i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2652 | const AbstractMethod* method = klass->GetVTable()->Get(i); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2653 | if (method != super->GetVTable()->Get(i) && |
| 2654 | !IsSameMethodSignatureInDifferentClassContexts(method, super, klass)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2655 | ThrowLinkageError("Class %s method %s resolves differently in superclass %s", |
| 2656 | PrettyDescriptor(klass).c_str(), PrettyMethod(method).c_str(), |
| 2657 | PrettyDescriptor(super).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2658 | return false; |
| 2659 | } |
| 2660 | } |
| 2661 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2662 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
| 2663 | InterfaceEntry* interface_entry = klass->GetIfTable()->Get(i); |
| 2664 | Class* interface = interface_entry->GetInterface(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2665 | if (klass->GetClassLoader() != interface->GetClassLoader()) { |
| 2666 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2667 | const AbstractMethod* method = interface_entry->GetMethodArray()->Get(j); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2668 | if (!IsSameMethodSignatureInDifferentClassContexts(method, interface, |
| 2669 | method->GetDeclaringClass())) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2670 | ThrowLinkageError("Class %s method %s resolves differently in interface %s", |
| 2671 | PrettyDescriptor(method->GetDeclaringClass()).c_str(), |
| 2672 | PrettyMethod(method).c_str(), |
| 2673 | PrettyDescriptor(interface).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2674 | return false; |
| 2675 | } |
| 2676 | } |
| 2677 | } |
| 2678 | } |
| 2679 | return true; |
| 2680 | } |
| 2681 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2682 | // Returns true if classes referenced by the signature of the method are the |
| 2683 | // same classes in klass1 as they are in klass2. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2684 | bool ClassLinker::IsSameMethodSignatureInDifferentClassContexts(const AbstractMethod* method, |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2685 | const Class* klass1, |
| 2686 | const Class* klass2) { |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2687 | if (klass1 == klass2) { |
| 2688 | return true; |
Brian Carlstrom | e10b697 | 2011-09-26 13:49:03 -0700 | [diff] [blame] | 2689 | } |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 2690 | const DexFile& dex_file = FindDexFile(method->GetDeclaringClass()->GetDexCache()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2691 | const DexFile::ProtoId& proto_id = |
| 2692 | dex_file.GetMethodPrototype(dex_file.GetMethodId(method->GetDexMethodIndex())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2693 | for (DexFileParameterIterator it(dex_file, proto_id); it.HasNext(); it.Next()) { |
| 2694 | const char* descriptor = it.GetDescriptor(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2695 | if (descriptor == NULL) { |
| 2696 | break; |
| 2697 | } |
| 2698 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 2699 | // Found a non-primitive type. |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2700 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2701 | return false; |
| 2702 | } |
| 2703 | } |
| 2704 | } |
| 2705 | // Check the return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2706 | const char* descriptor = dex_file.GetReturnTypeDescriptor(proto_id); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2707 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2708 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2709 | return false; |
| 2710 | } |
| 2711 | } |
| 2712 | return true; |
| 2713 | } |
| 2714 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2715 | // Returns true if the descriptor resolves to the same class in the context of klass1 and klass2. |
| 2716 | bool ClassLinker::IsSameDescriptorInDifferentClassContexts(const char* descriptor, |
| 2717 | const Class* klass1, |
| 2718 | const Class* klass2) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2719 | CHECK(descriptor != NULL); |
| 2720 | CHECK(klass1 != NULL); |
| 2721 | CHECK(klass2 != NULL); |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2722 | if (klass1 == klass2) { |
| 2723 | return true; |
| 2724 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2725 | Class* found1 = FindClass(descriptor, klass1->GetClassLoader()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2726 | if (found1 == NULL) { |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2727 | Thread::Current()->ClearException(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2728 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2729 | Class* found2 = FindClass(descriptor, klass2->GetClassLoader()); |
| 2730 | if (found2 == NULL) { |
| 2731 | Thread::Current()->ClearException(); |
| 2732 | } |
| 2733 | return found1 == found2; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2734 | } |
| 2735 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2736 | 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] | 2737 | CHECK(klass != NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2738 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 2739 | Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2740 | if (!super_class->IsInitialized()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2741 | CHECK(!super_class->IsInterface()); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2742 | 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] | 2743 | bool super_initialized = InitializeClass(super_class, can_run_clinit, can_init_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2744 | // TODO: check for a pending exception |
| 2745 | if (!super_initialized) { |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2746 | if (!can_run_clinit) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2747 | // Don't set status to error when we can't run <clinit>. |
| 2748 | CHECK_EQ(klass->GetStatus(), Class::kStatusInitializing) << PrettyClass(klass); |
| 2749 | klass->SetStatus(Class::kStatusVerified); |
| 2750 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2751 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2752 | klass->SetStatus(Class::kStatusError); |
| 2753 | klass->NotifyAll(); |
| 2754 | return false; |
| 2755 | } |
| 2756 | } |
| 2757 | } |
| 2758 | return true; |
| 2759 | } |
| 2760 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2761 | 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] | 2762 | CHECK(c != NULL); |
| 2763 | if (c->IsInitialized()) { |
| 2764 | return true; |
| 2765 | } |
| 2766 | |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2767 | Thread* self = Thread::Current(); |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 2768 | ScopedThreadStateChange tsc(self, kRunnable); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2769 | bool success = InitializeClass(c, can_run_clinit, can_init_fields); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2770 | if (!success) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2771 | CHECK(self->IsExceptionPending() || !can_run_clinit) << PrettyClass(c); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2772 | } |
| 2773 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2774 | } |
| 2775 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2776 | 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] | 2777 | Class* c, SafeMap<uint32_t, Field*>& field_map) { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 2778 | ClassLoader* cl = c->GetClassLoader(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2779 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2780 | ClassDataItemIterator it(dex_file, class_data); |
| 2781 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2782 | 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] | 2783 | } |
| 2784 | } |
| 2785 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2786 | bool ClassLinker::InitializeStaticFields(Class* klass) { |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2787 | size_t num_static_fields = klass->NumStaticFields(); |
| 2788 | if (num_static_fields == 0) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2789 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2790 | } |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2791 | DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2792 | // 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] | 2793 | if (dex_cache == NULL) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2794 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2795 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2796 | ClassHelper kh(klass); |
| 2797 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2798 | CHECK(dex_class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2799 | const DexFile& dex_file = kh.GetDexFile(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2800 | EncodedStaticFieldValueIterator it(dex_file, dex_cache, this, *dex_class_def); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2801 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2802 | if (it.HasNext()) { |
| 2803 | // 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] | 2804 | SafeMap<uint32_t, Field*> field_map; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2805 | ConstructFieldMap(dex_file, *dex_class_def, klass, field_map); |
| 2806 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2807 | it.ReadValueToField(field_map.Get(i)); |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2808 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2809 | return true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2810 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2811 | return false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2812 | } |
| 2813 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2814 | bool ClassLinker::LinkClass(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2815 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2816 | if (!LinkSuperClass(klass)) { |
| 2817 | return false; |
| 2818 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2819 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2820 | return false; |
| 2821 | } |
| 2822 | if (!LinkInstanceFields(klass)) { |
| 2823 | return false; |
| 2824 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2825 | if (!LinkStaticFields(klass)) { |
| 2826 | return false; |
| 2827 | } |
| 2828 | CreateReferenceInstanceOffsets(klass); |
| 2829 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2830 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
| 2831 | klass->SetStatus(Class::kStatusResolved); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2832 | return true; |
| 2833 | } |
| 2834 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2835 | bool ClassLinker::LoadSuperAndInterfaces(SirtRef<Class>& klass, const DexFile& dex_file) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2836 | CHECK_EQ(Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2837 | StringPiece descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 2838 | const DexFile::ClassDef* class_def = dex_file.FindClassDef(descriptor); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 2839 | CHECK(class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2840 | uint16_t super_class_idx = class_def->superclass_idx_; |
| 2841 | if (super_class_idx != DexFile::kDexNoIndex16) { |
| 2842 | Class* super_class = ResolveType(dex_file, super_class_idx, klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2843 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 2844 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2845 | return false; |
| 2846 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 2847 | // Verify |
| 2848 | if (!klass->CanAccess(super_class)) { |
| 2849 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2850 | "Class %s extended by class %s is inaccessible", |
| 2851 | PrettyDescriptor(super_class).c_str(), |
| 2852 | PrettyDescriptor(klass.get()).c_str()); |
| 2853 | return false; |
| 2854 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2855 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2856 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2857 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(*class_def); |
| 2858 | if (interfaces != NULL) { |
| 2859 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 2860 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
| 2861 | Class* interface = ResolveType(dex_file, idx, klass.get()); |
| 2862 | if (interface == NULL) { |
| 2863 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2864 | return false; |
| 2865 | } |
| 2866 | // Verify |
| 2867 | if (!klass->CanAccess(interface)) { |
| 2868 | // TODO: the RI seemed to ignore this in my testing. |
| 2869 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2870 | "Interface %s implemented by class %s is inaccessible", |
| 2871 | PrettyDescriptor(interface).c_str(), |
| 2872 | PrettyDescriptor(klass.get()).c_str()); |
| 2873 | return false; |
| 2874 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2875 | } |
| 2876 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2877 | // Mark the class as loaded. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2878 | klass->SetStatus(Class::kStatusLoaded); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2879 | return true; |
| 2880 | } |
| 2881 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2882 | bool ClassLinker::LinkSuperClass(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2883 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2884 | Class* super = klass->GetSuperClass(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2885 | if (klass.get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2886 | if (super != NULL) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2887 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/ClassFormatError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2888 | "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2889 | return false; |
| 2890 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2891 | return true; |
| 2892 | } |
| 2893 | if (super == NULL) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2894 | ThrowLinkageError("No superclass defined for class %s", PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2895 | return false; |
| 2896 | } |
| 2897 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2898 | if (super->IsFinal() || super->IsInterface()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2899 | Thread* self = Thread::Current(); |
| 2900 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2901 | "Superclass %s of %s is %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2902 | PrettyDescriptor(super).c_str(), |
| 2903 | PrettyDescriptor(klass.get()).c_str(), |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2904 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2905 | return false; |
| 2906 | } |
| 2907 | if (!klass->CanAccess(super)) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2908 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2909 | "Superclass %s is inaccessible by %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2910 | PrettyDescriptor(super).c_str(), |
| 2911 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2912 | return false; |
| 2913 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 2914 | |
| 2915 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 2916 | if (super->IsFinalizable()) { |
| 2917 | klass->SetFinalizable(); |
| 2918 | } |
| 2919 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 2920 | // Inherit reference flags (if any) from the superclass. |
| 2921 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 2922 | if (reference_flags != 0) { |
| 2923 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 2924 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2925 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 2926 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2927 | 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] | 2928 | PrettyDescriptor(klass.get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2929 | return false; |
| 2930 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 2931 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2932 | #ifndef NDEBUG |
| 2933 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 2934 | while (super != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2935 | CHECK(super->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2936 | super = super->GetSuperClass(); |
| 2937 | } |
| 2938 | #endif |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2939 | return true; |
| 2940 | } |
| 2941 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2942 | // Populate the class vtable and itable. Compute return type indices. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2943 | bool ClassLinker::LinkMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2944 | if (klass->IsInterface()) { |
| 2945 | // No vtable. |
| 2946 | size_t count = klass->NumVirtualMethods(); |
| 2947 | if (!IsUint(16, count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 2948 | ThrowClassFormatError("Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2949 | return false; |
| 2950 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 2951 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2952 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2953 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 2954 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2955 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2956 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 2957 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2958 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2959 | } |
| 2960 | return true; |
| 2961 | } |
| 2962 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2963 | bool ClassLinker::LinkVirtualMethods(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2964 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2965 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 2966 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2967 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 2968 | // 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] | 2969 | SirtRef<ObjectArray<AbstractMethod> > vtable(klass->GetSuperClass()->GetVTable()->CopyOf(max_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2970 | // See if any of our virtual methods override the superclass. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2971 | MethodHelper local_mh(NULL, this); |
| 2972 | MethodHelper super_mh(NULL, this); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2973 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2974 | AbstractMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2975 | local_mh.ChangeMethod(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2976 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2977 | for (; j < actual_count; ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2978 | AbstractMethod* super_method = vtable->Get(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2979 | super_mh.ChangeMethod(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 2980 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
| 2981 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), super_method->GetAccessFlags())) { |
| 2982 | if (super_method->IsFinal()) { |
| 2983 | ThrowLinkageError("Method %s overrides final method in class %s", |
| 2984 | PrettyMethod(local_method).c_str(), |
| 2985 | super_mh.GetDeclaringClassDescriptor()); |
| 2986 | return false; |
| 2987 | } |
| 2988 | vtable->Set(j, local_method); |
| 2989 | local_method->SetMethodIndex(j); |
| 2990 | break; |
| 2991 | } else { |
| 2992 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 2993 | << " would have incorrectly overridden the package-private method in " |
| 2994 | << PrettyDescriptor(super_mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2995 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2996 | } |
| 2997 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2998 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2999 | // Not overriding, append. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3000 | vtable->Set(actual_count, local_method); |
| 3001 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3002 | actual_count += 1; |
| 3003 | } |
| 3004 | } |
| 3005 | if (!IsUint(16, actual_count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 3006 | ThrowClassFormatError("Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3007 | return false; |
| 3008 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3009 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3010 | CHECK_LE(actual_count, max_count); |
| 3011 | if (actual_count < max_count) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3012 | vtable.reset(vtable->CopyOf(actual_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3013 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3014 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3015 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3016 | CHECK(klass.get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3017 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3018 | if (!IsUint(16, num_virtual_methods)) { |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 3019 | ThrowClassFormatError("Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3020 | return false; |
| 3021 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3022 | SirtRef<ObjectArray<AbstractMethod> > vtable(AllocObjectArray<AbstractMethod>(num_virtual_methods)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3023 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3024 | AbstractMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3025 | vtable->Set(i, virtual_method); |
| 3026 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3027 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3028 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3029 | } |
| 3030 | return true; |
| 3031 | } |
| 3032 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3033 | bool ClassLinker::LinkInterfaceMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3034 | size_t super_ifcount; |
| 3035 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3036 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3037 | } else { |
| 3038 | super_ifcount = 0; |
| 3039 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3040 | size_t ifcount = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3041 | ClassHelper kh(klass.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3042 | uint32_t num_interfaces = interfaces == NULL ? kh.NumDirectInterfaces() : interfaces->GetLength(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3043 | ifcount += num_interfaces; |
| 3044 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3045 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3046 | ifcount += interface->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3047 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3048 | if (ifcount == 0) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3049 | // TODO: enable these asserts with klass status validation |
Elliott Hughes | f5a7a47 | 2011-10-07 14:31:02 -0700 | [diff] [blame] | 3050 | // DCHECK_EQ(klass->GetIfTableCount(), 0); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3051 | // DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3052 | return true; |
| 3053 | } |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 3054 | SirtRef<ObjectArray<InterfaceEntry> > iftable(AllocIfTable(ifcount)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3055 | if (super_ifcount != 0) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3056 | ObjectArray<InterfaceEntry>* super_iftable = klass->GetSuperClass()->GetIfTable(); |
| 3057 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3058 | Class* super_interface = super_iftable->Get(i)->GetInterface(); |
| 3059 | iftable->Set(i, AllocInterfaceEntry(super_interface)); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3060 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3061 | } |
| 3062 | // Flatten the interface inheritance hierarchy. |
| 3063 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3064 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3065 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3066 | DCHECK(interface != NULL); |
| 3067 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3068 | ClassHelper ih(interface); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 3069 | Thread* self = Thread::Current(); |
| 3070 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3071 | "Class %s implements non-interface class %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3072 | PrettyDescriptor(klass.get()).c_str(), |
| 3073 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3074 | return false; |
| 3075 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3076 | // Check if interface is already in iftable |
| 3077 | bool duplicate = false; |
| 3078 | for (size_t j = 0; j < idx; j++) { |
| 3079 | Class* existing_interface = iftable->Get(j)->GetInterface(); |
| 3080 | if (existing_interface == interface) { |
| 3081 | duplicate = true; |
| 3082 | break; |
| 3083 | } |
| 3084 | } |
| 3085 | if (!duplicate) { |
| 3086 | // Add this non-duplicate interface. |
| 3087 | iftable->Set(idx++, AllocInterfaceEntry(interface)); |
| 3088 | // Add this interface's non-duplicate super-interfaces. |
| 3089 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
| 3090 | Class* super_interface = interface->GetIfTable()->Get(j)->GetInterface(); |
| 3091 | bool super_duplicate = false; |
| 3092 | for (size_t k = 0; k < idx; k++) { |
| 3093 | Class* existing_interface = iftable->Get(k)->GetInterface(); |
| 3094 | if (existing_interface == super_interface) { |
| 3095 | super_duplicate = true; |
| 3096 | break; |
| 3097 | } |
| 3098 | } |
| 3099 | if (!super_duplicate) { |
| 3100 | iftable->Set(idx++, AllocInterfaceEntry(super_interface)); |
| 3101 | } |
| 3102 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3103 | } |
| 3104 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3105 | // Shrink iftable in case duplicates were found |
| 3106 | if (idx < ifcount) { |
| 3107 | iftable.reset(iftable->CopyOf(idx)); |
| 3108 | ifcount = idx; |
| 3109 | } else { |
| 3110 | CHECK_EQ(idx, ifcount); |
| 3111 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3112 | klass->SetIfTable(iftable.get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3113 | |
| 3114 | // If we're an interface, we don't need the vtable pointers, so we're done. |
| 3115 | if (klass->IsInterface() /*|| super_ifcount == ifcount*/) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3116 | return true; |
| 3117 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3118 | std::vector<AbstractMethod*> miranda_list; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3119 | MethodHelper vtable_mh(NULL, this); |
| 3120 | MethodHelper interface_mh(NULL, this); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3121 | for (size_t i = 0; i < ifcount; ++i) { |
| 3122 | InterfaceEntry* interface_entry = iftable->Get(i); |
| 3123 | Class* interface = interface_entry->GetInterface(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3124 | ObjectArray<AbstractMethod>* method_array = AllocObjectArray<AbstractMethod>(interface->NumVirtualMethods()); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3125 | interface_entry->SetMethodArray(method_array); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3126 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3127 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3128 | AbstractMethod* interface_method = interface->GetVirtualMethod(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3129 | interface_mh.ChangeMethod(interface_method); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3130 | int32_t k; |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3131 | // For each method listed in the interface's method list, find the |
| 3132 | // matching method in our class's method list. We want to favor the |
| 3133 | // subclass over the superclass, which just requires walking |
| 3134 | // back from the end of the vtable. (This only matters if the |
| 3135 | // superclass defines a private method and this class redefines |
| 3136 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 3137 | // those don't end up in the virtual method table, so it shouldn't |
| 3138 | // matter which direction we go. We walk it backward anyway.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3139 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3140 | AbstractMethod* vtable_method = vtable->Get(k); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3141 | vtable_mh.ChangeMethod(vtable_method); |
| 3142 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 3143 | if (!vtable_method->IsPublic()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 3144 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3145 | "Implementation not public: %s", PrettyMethod(vtable_method).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3146 | return false; |
| 3147 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3148 | method_array->Set(j, vtable_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3149 | break; |
| 3150 | } |
| 3151 | } |
| 3152 | if (k < 0) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3153 | SirtRef<AbstractMethod> miranda_method(NULL); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3154 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3155 | AbstractMethod* mir_method = miranda_list[mir]; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3156 | vtable_mh.ChangeMethod(mir_method); |
| 3157 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3158 | miranda_method.reset(miranda_list[mir]); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3159 | break; |
| 3160 | } |
| 3161 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3162 | if (miranda_method.get() == NULL) { |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3163 | // point the interface table at a phantom slot |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3164 | miranda_method.reset(down_cast<AbstractMethod*>(interface_method->Clone())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3165 | miranda_list.push_back(miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3166 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3167 | method_array->Set(j, miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3168 | } |
| 3169 | } |
| 3170 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3171 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3172 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3173 | int new_method_count = old_method_count + miranda_list.size(); |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 3174 | klass->SetVirtualMethods((old_method_count == 0) |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3175 | ? AllocObjectArray<AbstractMethod>(new_method_count) |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 3176 | : klass->GetVirtualMethods()->CopyOf(new_method_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3177 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3178 | SirtRef<ObjectArray<AbstractMethod> > vtable(klass->GetVTableDuringLinking()); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3179 | CHECK(vtable.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3180 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3181 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3182 | vtable.reset(vtable->CopyOf(new_vtable_count)); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3183 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3184 | AbstractMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3185 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 3186 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 3187 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 3188 | klass->SetVirtualMethod(old_method_count + i, method); |
| 3189 | vtable->Set(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3190 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3191 | // 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] | 3192 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3193 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3194 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3195 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3196 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 3197 | CHECK(vtable->Get(i) != NULL); |
| 3198 | } |
| 3199 | |
| 3200 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 3201 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3202 | return true; |
| 3203 | } |
| 3204 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3205 | bool ClassLinker::LinkInstanceFields(SirtRef<Class>& klass) { |
| 3206 | CHECK(klass.get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3207 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3208 | } |
| 3209 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3210 | bool ClassLinker::LinkStaticFields(SirtRef<Class>& klass) { |
| 3211 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3212 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3213 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3214 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3215 | return success; |
| 3216 | } |
| 3217 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3218 | struct LinkFieldsComparator { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3219 | explicit LinkFieldsComparator(FieldHelper* fh) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3220 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3221 | : fh_(fh) {} |
| 3222 | // No thread safety analysis as will be called from STL. Checked lock held in constructor. |
| 3223 | bool operator()(const Field* field1, const Field* field2) NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3224 | // First come reference fields, then 64-bit, and finally 32-bit |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3225 | fh_->ChangeField(field1); |
| 3226 | Primitive::Type type1 = fh_->GetTypeAsPrimitiveType(); |
| 3227 | fh_->ChangeField(field2); |
| 3228 | Primitive::Type type2 = fh_->GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3229 | bool isPrimitive1 = type1 != Primitive::kPrimNot; |
| 3230 | bool isPrimitive2 = type2 != Primitive::kPrimNot; |
| 3231 | bool is64bit1 = isPrimitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 3232 | bool is64bit2 = isPrimitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3233 | int order1 = (!isPrimitive1 ? 0 : (is64bit1 ? 1 : 2)); |
| 3234 | int order2 = (!isPrimitive2 ? 0 : (is64bit2 ? 1 : 2)); |
| 3235 | if (order1 != order2) { |
| 3236 | return order1 < order2; |
| 3237 | } |
| 3238 | |
| 3239 | // same basic group? then sort by string. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3240 | fh_->ChangeField(field1); |
| 3241 | StringPiece name1(fh_->GetName()); |
| 3242 | fh_->ChangeField(field2); |
| 3243 | StringPiece name2(fh_->GetName()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3244 | return name1 < name2; |
| 3245 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3246 | |
| 3247 | FieldHelper* fh_; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3248 | }; |
| 3249 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3250 | bool ClassLinker::LinkFields(SirtRef<Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3251 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3252 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3253 | |
| 3254 | ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3255 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3256 | |
| 3257 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 3258 | size_t size; |
| 3259 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3260 | if (is_static) { |
| 3261 | size = klass->GetClassSize(); |
| 3262 | field_offset = Class::FieldsOffset(); |
| 3263 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3264 | Class* super_class = klass->GetSuperClass(); |
| 3265 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3266 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3267 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3268 | } |
| 3269 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3270 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3271 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3272 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3273 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3274 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3275 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3276 | std::deque<Field*> grouped_and_sorted_fields; |
| 3277 | for (size_t i = 0; i < num_fields; i++) { |
| 3278 | grouped_and_sorted_fields.push_back(fields->Get(i)); |
| 3279 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3280 | FieldHelper fh(NULL, this); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3281 | std::sort(grouped_and_sorted_fields.begin(), |
| 3282 | grouped_and_sorted_fields.end(), |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3283 | LinkFieldsComparator(&fh)); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3284 | |
| 3285 | // References should be at the front. |
| 3286 | size_t current_field = 0; |
| 3287 | size_t num_reference_fields = 0; |
| 3288 | for (; current_field < num_fields; current_field++) { |
| 3289 | Field* field = grouped_and_sorted_fields.front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3290 | fh.ChangeField(field); |
| 3291 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3292 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3293 | if (isPrimitive) { |
| 3294 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3295 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3296 | grouped_and_sorted_fields.pop_front(); |
| 3297 | num_reference_fields++; |
| 3298 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3299 | field->SetOffset(field_offset); |
| 3300 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3301 | } |
| 3302 | |
| 3303 | // Now we want to pack all of the double-wide fields together. If |
| 3304 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 3305 | // 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] | 3306 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3307 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
| 3308 | Field* field = grouped_and_sorted_fields[i]; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3309 | fh.ChangeField(field); |
| 3310 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3311 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 3312 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3313 | continue; |
| 3314 | } |
| 3315 | fields->Set(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3316 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3317 | // drop the consumed field |
| 3318 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 3319 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3320 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3321 | // whether we found a 32-bit field for padding or not, we advance |
| 3322 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3323 | } |
| 3324 | |
| 3325 | // Alignment is good, shuffle any double-wide fields forward, and |
| 3326 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3327 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3328 | while (!grouped_and_sorted_fields.empty()) { |
| 3329 | Field* field = grouped_and_sorted_fields.front(); |
| 3330 | grouped_and_sorted_fields.pop_front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3331 | fh.ChangeField(field); |
| 3332 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3333 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3334 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3335 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3336 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3337 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3338 | ? sizeof(uint64_t) |
| 3339 | : sizeof(uint32_t))); |
| 3340 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3341 | } |
| 3342 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3343 | // 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] | 3344 | std::string descriptor(ClassHelper(klass.get(), this).GetDescriptor()); |
| 3345 | if (!is_static && descriptor == "Ljava/lang/ref/Reference;") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3346 | // We know there are no non-reference fields in the Reference classes, and we know |
| 3347 | // that 'referent' is alphabetically last, so this is easy... |
| 3348 | CHECK_EQ(num_reference_fields, num_fields); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3349 | fh.ChangeField(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 3350 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3351 | --num_reference_fields; |
| 3352 | } |
| 3353 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3354 | #ifndef NDEBUG |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3355 | // Make sure that all reference fields appear before |
| 3356 | // non-reference fields, and all double-wide fields are aligned. |
| 3357 | bool seen_non_ref = false; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3358 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3359 | Field* field = fields->Get(i); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3360 | if (false) { // enable to debug field layout |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3361 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3362 | << " class=" << PrettyClass(klass.get()) |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3363 | << " field=" << PrettyField(field) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3364 | << " offset=" << field->GetField32(MemberOffset(Field::OffsetOffset()), false); |
| 3365 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3366 | fh.ChangeField(field); |
| 3367 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3368 | bool is_primitive = type != Primitive::kPrimNot; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3369 | if (descriptor == "Ljava/lang/ref/Reference;" && StringPiece(fh.GetName()) == "referent") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3370 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 3371 | } |
| 3372 | if (is_primitive) { |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3373 | if (!seen_non_ref) { |
| 3374 | seen_non_ref = true; |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3375 | DCHECK_EQ(num_reference_fields, i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3376 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3377 | } else { |
| 3378 | DCHECK(!seen_non_ref); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3379 | } |
| 3380 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3381 | if (!seen_non_ref) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3382 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3383 | } |
| 3384 | #endif |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3385 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3386 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3387 | if (is_static) { |
| 3388 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 3389 | klass->SetClassSize(size); |
| 3390 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3391 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3392 | if (!klass->IsVariableSize()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3393 | klass->SetObjectSize(size); |
| 3394 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3395 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3396 | return true; |
| 3397 | } |
| 3398 | |
| 3399 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 3400 | // list. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3401 | void ClassLinker::CreateReferenceInstanceOffsets(SirtRef<Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3402 | uint32_t reference_offsets = 0; |
| 3403 | Class* super_class = klass->GetSuperClass(); |
| 3404 | if (super_class != NULL) { |
| 3405 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3406 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3407 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 3408 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3409 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3410 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3411 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3412 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3413 | } |
| 3414 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3415 | void ClassLinker::CreateReferenceStaticOffsets(SirtRef<Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3416 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3417 | } |
| 3418 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3419 | void ClassLinker::CreateReferenceOffsets(SirtRef<Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3420 | uint32_t reference_offsets) { |
| 3421 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3422 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 3423 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3424 | const ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3425 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3426 | // All of the fields that contain object references are guaranteed |
| 3427 | // to be at the beginning of the fields list. |
| 3428 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 3429 | // Note that byte_offset is the offset from the beginning of |
| 3430 | // object, not the offset into instance data |
| 3431 | const Field* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3432 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3433 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 3434 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 3435 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3436 | CHECK_NE(new_bit, 0U); |
| 3437 | reference_offsets |= new_bit; |
| 3438 | } else { |
| 3439 | reference_offsets = CLASS_WALK_SUPER; |
| 3440 | break; |
| 3441 | } |
| 3442 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3443 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3444 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3445 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3446 | } else { |
| 3447 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3448 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3449 | } |
| 3450 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3451 | String* ClassLinker::ResolveString(const DexFile& dex_file, |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 3452 | uint32_t string_idx, DexCache* dex_cache) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3453 | DCHECK(dex_cache != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3454 | String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3455 | if (resolved != NULL) { |
| 3456 | return resolved; |
| 3457 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3458 | const DexFile::StringId& string_id = dex_file.GetStringId(string_idx); |
| 3459 | int32_t utf16_length = dex_file.GetStringLength(string_id); |
| 3460 | const char* utf8_data = dex_file.GetStringData(string_id); |
Brian Carlstrom | 928bf02 | 2011-10-11 02:48:14 -0700 | [diff] [blame] | 3461 | String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3462 | dex_cache->SetResolvedString(string_idx, string); |
| 3463 | return string; |
| 3464 | } |
| 3465 | |
| 3466 | Class* ClassLinker::ResolveType(const DexFile& dex_file, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3467 | uint16_t type_idx, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3468 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3469 | ClassLoader* class_loader) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3470 | DCHECK(dex_cache != NULL); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3471 | Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3472 | if (resolved == NULL) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3473 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 3474 | resolved = FindClass(descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3475 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 3476 | // TODO: we used to throw here if resolved's class loader was not the |
| 3477 | // boot class loader. This was to permit different classes with the |
| 3478 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3479 | dex_cache->SetResolvedType(type_idx, resolved); |
| 3480 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 3481 | CHECK(Thread::Current()->IsExceptionPending()) |
| 3482 | << "Expected pending exception for failed resolution of: " << descriptor; |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3483 | // Convert a ClassNotFoundException to a NoClassDefFoundError |
| 3484 | if (Thread::Current()->GetException()->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
| 3485 | Thread::Current()->ClearException(); |
| 3486 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
| 3487 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3488 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3489 | } |
| 3490 | return resolved; |
| 3491 | } |
| 3492 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3493 | AbstractMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3494 | uint32_t method_idx, |
| 3495 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3496 | ClassLoader* class_loader, |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3497 | const AbstractMethod* referrer, |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3498 | InvokeType type) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3499 | DCHECK(dex_cache != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3500 | // Check for hit in the dex cache. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3501 | AbstractMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3502 | if (resolved != NULL) { |
| 3503 | return resolved; |
| 3504 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3505 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3506 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 3507 | Class* klass = ResolveType(dex_file, method_id.class_idx_, dex_cache, class_loader); |
| 3508 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 3509 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3510 | return NULL; |
| 3511 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3512 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 3513 | // caches/files. |
| 3514 | switch (type) { |
| 3515 | case kDirect: // Fall-through. |
| 3516 | case kStatic: |
| 3517 | resolved = klass->FindDirectMethod(dex_cache, method_idx); |
| 3518 | break; |
| 3519 | case kInterface: |
| 3520 | resolved = klass->FindInterfaceMethod(dex_cache, method_idx); |
| 3521 | break; |
| 3522 | case kSuper: // Fall-through. |
| 3523 | case kVirtual: |
| 3524 | resolved = klass->FindVirtualMethod(dex_cache, method_idx); |
| 3525 | break; |
| 3526 | default: |
| 3527 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3528 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3529 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3530 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3531 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3532 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3533 | switch (type) { |
| 3534 | case kDirect: // Fall-through. |
| 3535 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3536 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3537 | break; |
| 3538 | case kInterface: |
| 3539 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3540 | break; |
| 3541 | case kSuper: // Fall-through. |
| 3542 | case kVirtual: |
| 3543 | resolved = klass->FindVirtualMethod(name, signature); |
| 3544 | break; |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3545 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3546 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3547 | if (resolved != NULL) { |
| 3548 | // We found a method, check for incompatible class changes. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3549 | if (resolved->CheckIncompatibleClassChange(type)) { |
| 3550 | resolved = NULL; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3551 | } |
| 3552 | } |
| 3553 | if (resolved != NULL) { |
| 3554 | // Be a good citizen and update the dex cache to speed subsequent calls. |
| 3555 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 3556 | return resolved; |
| 3557 | } else { |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3558 | // We failed to find the method which means either an access error, an incompatible class |
| 3559 | // 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] | 3560 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3561 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
| 3562 | switch (type) { |
| 3563 | case kDirect: |
| 3564 | case kStatic: |
| 3565 | resolved = klass->FindVirtualMethod(name, signature); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3566 | break; |
| 3567 | case kInterface: |
| 3568 | case kVirtual: |
| 3569 | case kSuper: |
| 3570 | resolved = klass->FindDirectMethod(name, signature); |
| 3571 | break; |
| 3572 | } |
| 3573 | |
| 3574 | // If we found something, check that it can be accessed by the referrer. |
| 3575 | if (resolved != NULL && referrer != NULL) { |
| 3576 | Class* methods_class = resolved->GetDeclaringClass(); |
| 3577 | Class* referring_class = referrer->GetDeclaringClass(); |
| 3578 | if (!referring_class->CanAccess(methods_class)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3579 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
| 3580 | referrer, resolved, type); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3581 | return NULL; |
| 3582 | } else if (!referring_class->CanAccessMember(methods_class, |
| 3583 | resolved->GetAccessFlags())) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3584 | ThrowIllegalAccessErrorMethod(referring_class, resolved); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3585 | return NULL; |
| 3586 | } |
| 3587 | } |
| 3588 | |
| 3589 | // Otherwise, throw an IncompatibleClassChangeError if we found something, and check interface |
| 3590 | // methods and throw if we find the method there. If we find nothing, throw a NoSuchMethodError. |
| 3591 | switch (type) { |
| 3592 | case kDirect: |
| 3593 | case kStatic: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3594 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3595 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3596 | } else { |
| 3597 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3598 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3599 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3600 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3601 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3602 | } |
| 3603 | } |
| 3604 | break; |
| 3605 | case kInterface: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3606 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3607 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3608 | } else { |
| 3609 | resolved = klass->FindVirtualMethod(name, signature); |
| 3610 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3611 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3612 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3613 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3614 | } |
| 3615 | } |
| 3616 | break; |
| 3617 | case kSuper: |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3618 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3619 | break; |
| 3620 | case kVirtual: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3621 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3622 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3623 | } else { |
| 3624 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3625 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3626 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3627 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3628 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3629 | } |
| 3630 | } |
| 3631 | break; |
| 3632 | } |
| 3633 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3634 | return NULL; |
| 3635 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3636 | } |
| 3637 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3638 | Field* ClassLinker::ResolveField(const DexFile& dex_file, |
| 3639 | uint32_t field_idx, |
| 3640 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3641 | ClassLoader* class_loader, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3642 | bool is_static) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3643 | DCHECK(dex_cache != NULL); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3644 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3645 | if (resolved != NULL) { |
| 3646 | return resolved; |
| 3647 | } |
| 3648 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3649 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3650 | if (klass == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 3651 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3652 | return NULL; |
| 3653 | } |
| 3654 | |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3655 | if (is_static) { |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3656 | resolved = klass->FindStaticField(dex_cache, field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3657 | } else { |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3658 | resolved = klass->FindInstanceField(dex_cache, field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3659 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3660 | |
| 3661 | if (resolved == NULL) { |
| 3662 | const char* name = dex_file.GetFieldName(field_id); |
| 3663 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 3664 | if (is_static) { |
| 3665 | resolved = klass->FindStaticField(name, type); |
| 3666 | } else { |
| 3667 | resolved = klass->FindInstanceField(name, type); |
| 3668 | } |
| 3669 | if (resolved == NULL) { |
| 3670 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass, type, name); |
| 3671 | return NULL; |
| 3672 | } |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3673 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3674 | dex_cache->SetResolvedField(field_idx, resolved); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3675 | return resolved; |
| 3676 | } |
| 3677 | |
| 3678 | Field* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
| 3679 | uint32_t field_idx, |
| 3680 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3681 | ClassLoader* class_loader) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3682 | DCHECK(dex_cache != NULL); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3683 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3684 | if (resolved != NULL) { |
| 3685 | return resolved; |
| 3686 | } |
| 3687 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3688 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3689 | if (klass == NULL) { |
| 3690 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3691 | return NULL; |
| 3692 | } |
| 3693 | |
| 3694 | const char* name = dex_file.GetFieldName(field_id); |
| 3695 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 3696 | resolved = klass->FindField(name, type); |
| 3697 | if (resolved != NULL) { |
| 3698 | dex_cache->SetResolvedField(field_idx, resolved); |
| 3699 | } else { |
| 3700 | ThrowNoSuchFieldError("", klass, type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3701 | } |
| 3702 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 3703 | } |
| 3704 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3705 | 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] | 3706 | Class* declaring_class = referrer->GetDeclaringClass(); |
| 3707 | DexCache* dex_cache = declaring_class->GetDexCache(); |
| 3708 | const DexFile& dex_file = FindDexFile(dex_cache); |
| 3709 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3710 | return dex_file.GetMethodShorty(method_id, length); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 3711 | } |
| 3712 | |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3713 | void ClassLinker::DumpAllClasses(int flags) const { |
| 3714 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 3715 | // lock held, because it might need to resolve a field's type, which would try to take the lock. |
| 3716 | std::vector<Class*> all_classes; |
| 3717 | { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3718 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3719 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 3720 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 3721 | all_classes.push_back(it->second); |
| 3722 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3723 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 3724 | all_classes.push_back(it->second); |
| 3725 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3726 | } |
| 3727 | |
| 3728 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 3729 | all_classes[i]->DumpClass(std::cerr, flags); |
| 3730 | } |
| 3731 | } |
| 3732 | |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 3733 | void ClassLinker::DumpForSigQuit(std::ostream& os) const { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3734 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 3735 | os << "Loaded classes: " << image_classes_.size() << " image classes; " |
| 3736 | << classes_.size() << " allocated classes\n"; |
| 3737 | } |
| 3738 | |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3739 | size_t ClassLinker::NumLoadedClasses() const { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3740 | MutexLock mu(*Locks::classlinker_classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3741 | return classes_.size() + image_classes_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3742 | } |
| 3743 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3744 | pid_t ClassLinker::GetClassesLockOwner() { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3745 | return Locks::classlinker_classes_lock_->GetExclusiveOwnerTid(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3746 | } |
| 3747 | |
| 3748 | pid_t ClassLinker::GetDexLockOwner() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3749 | return dex_lock_.GetExclusiveOwnerTid(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 3750 | } |
| 3751 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3752 | void ClassLinker::SetClassRoot(ClassRoot class_root, Class* klass) { |
| 3753 | DCHECK(!init_done_); |
| 3754 | |
| 3755 | DCHECK(klass != NULL); |
| 3756 | DCHECK(klass->GetClassLoader() == NULL); |
| 3757 | |
| 3758 | DCHECK(class_roots_ != NULL); |
| 3759 | DCHECK(class_roots_->Get(class_root) == NULL); |
| 3760 | class_roots_->Set(class_root, klass); |
| 3761 | } |
| 3762 | |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 3763 | void ClassLinker::RelocateExecutable() { |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 3764 | MutexLock mu(dex_lock_); |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 3765 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 3766 | const_cast<OatFile*>(oat_files_[i])->RelocateExecutable(); |
| 3767 | } |
| 3768 | } |
| 3769 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3770 | } // namespace art |