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 | |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 30 | #include "base/casts.h" |
Elliott Hughes | 07ed66b | 2012-12-12 18:34:25 -0800 | [diff] [blame] | 31 | #include "base/logging.h" |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 32 | #include "base/stl_util.h" |
Elliott Hughes | 7616005 | 2012-12-12 16:31:20 -0800 | [diff] [blame] | 33 | #include "base/unix_file/fd_file.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 34 | #include "class_loader.h" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 35 | #include "debugger.h" |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 36 | #include "dex_cache.h" |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 37 | #include "dex_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 38 | #include "heap.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 39 | #include "intern_table.h" |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 40 | #include "interpreter/interpreter.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 41 | #include "leb128.h" |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 42 | #include "oat.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 43 | #include "oat_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 44 | #include "object.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 45 | #include "object_utils.h" |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 46 | #include "os.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 47 | #include "runtime.h" |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 48 | #include "runtime_support.h" |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 49 | #if defined(ART_USE_LLVM_COMPILER) |
| 50 | #include "compiler_llvm/runtime_support_llvm.h" |
| 51 | #endif |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 52 | #include "ScopedLocalRef.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 53 | #include "scoped_thread_state_change.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 54 | #include "sirt_ref.h" |
Mathieu Chartier | 7469ebf | 2012-09-24 16:28:36 -0700 | [diff] [blame] | 55 | #include "gc/space.h" |
| 56 | #include "gc/space_bitmap.h" |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 57 | #include "stack_indirect_reference_table.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 58 | #include "thread.h" |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 59 | #include "UniquePtr.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 60 | #include "utils.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 61 | #include "well_known_classes.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 62 | |
| 63 | namespace art { |
| 64 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 65 | static void ThrowNoClassDefFoundError(const char* fmt, ...) |
| 66 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 67 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 68 | static void ThrowNoClassDefFoundError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 69 | va_list args; |
| 70 | va_start(args, fmt); |
| 71 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NoClassDefFoundError;", fmt, args); |
| 72 | va_end(args); |
| 73 | } |
| 74 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 75 | static void ThrowClassFormatError(const char* fmt, ...) |
| 76 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 77 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 78 | static void ThrowClassFormatError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 79 | va_list args; |
| 80 | va_start(args, fmt); |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 81 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/ClassFormatError;", fmt, args); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 82 | va_end(args); |
| 83 | } |
| 84 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 85 | static void ThrowLinkageError(const char* fmt, ...) |
| 86 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 87 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 88 | static void ThrowLinkageError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 89 | va_list args; |
| 90 | va_start(args, fmt); |
| 91 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/LinkageError;", fmt, args); |
| 92 | va_end(args); |
| 93 | } |
| 94 | |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 95 | static void ThrowNoSuchFieldError(const StringPiece& scope, Class* c, const StringPiece& type, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 96 | const StringPiece& name) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 97 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 98 | ClassHelper kh(c); |
| 99 | std::ostringstream msg; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 100 | msg << "No " << scope << "field " << name << " of type " << type |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 101 | << " in class " << kh.GetDescriptor() << " or its superclasses"; |
| 102 | std::string location(kh.GetLocation()); |
| 103 | if (!location.empty()) { |
| 104 | msg << " (defined in " << location << ")"; |
| 105 | } |
| 106 | Thread::Current()->ThrowNewException("Ljava/lang/NoSuchFieldError;", msg.str().c_str()); |
| 107 | } |
| 108 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 109 | static void ThrowNullPointerException(const char* fmt, ...) |
| 110 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 111 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 112 | static void ThrowNullPointerException(const char* fmt, ...) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 113 | va_list args; |
| 114 | va_start(args, fmt); |
| 115 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NullPointerException;", fmt, args); |
| 116 | va_end(args); |
| 117 | } |
| 118 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 119 | static void ThrowEarlierClassFailure(Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 120 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 121 | // The class failed to initialize on a previous attempt, so we want to throw |
| 122 | // a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 123 | // failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 124 | // the previous error. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 125 | if (!Runtime::Current()->IsCompiler()) { // Give info if this occurs at runtime. |
| 126 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 127 | } |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 128 | |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 129 | CHECK(c->IsErroneous()) << PrettyClass(c) << " " << c->GetStatus(); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 130 | if (c->GetVerifyErrorClass() != NULL) { |
| 131 | // 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] | 132 | ClassHelper ve_ch(c->GetVerifyErrorClass()); |
| 133 | std::string error_descriptor(ve_ch.GetDescriptor()); |
| 134 | Thread::Current()->ThrowNewException(error_descriptor.c_str(), PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 135 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 136 | ThrowNoClassDefFoundError("%s", PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 137 | } |
| 138 | } |
| 139 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 140 | static void WrapExceptionInInitializer() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 141 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 142 | Thread* self = Thread::Current(); |
| 143 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 144 | |
| 145 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 146 | CHECK(cause.get() != NULL); |
| 147 | |
| 148 | env->ExceptionClear(); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 149 | bool is_error = env->IsInstanceOf(cause.get(), WellKnownClasses::java_lang_Error); |
| 150 | env->Throw(cause.get()); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 151 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 152 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 153 | if (!is_error) { |
| 154 | self->ThrowNewWrappedException("Ljava/lang/ExceptionInInitializerError;", NULL); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 155 | } |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 156 | } |
| 157 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 158 | static size_t Hash(const char* s) { |
| 159 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 160 | size_t hash = 0; |
| 161 | for (; *s != '\0'; ++s) { |
| 162 | hash = hash * 31 + *s; |
| 163 | } |
| 164 | return hash; |
| 165 | } |
| 166 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 167 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 168 | "Ljava/lang/Class;", |
| 169 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 170 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 171 | "[Ljava/lang/Object;", |
| 172 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 173 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 174 | "Ljava/lang/ref/Reference;", |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 175 | "Ljava/lang/reflect/Constructor;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 176 | "Ljava/lang/reflect/Field;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 177 | "Ljava/lang/reflect/AbstractMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 178 | "Ljava/lang/reflect/Method;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 179 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 180 | "[Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 181 | "[Ljava/lang/reflect/AbstractMethod;", |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 182 | "[Ljava/lang/reflect/Field;", |
| 183 | "[Ljava/lang/reflect/Method;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 184 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 185 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 186 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 187 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 188 | "Z", |
| 189 | "B", |
| 190 | "C", |
| 191 | "D", |
| 192 | "F", |
| 193 | "I", |
| 194 | "J", |
| 195 | "S", |
| 196 | "V", |
| 197 | "[Z", |
| 198 | "[B", |
| 199 | "[C", |
| 200 | "[D", |
| 201 | "[F", |
| 202 | "[I", |
| 203 | "[J", |
| 204 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 205 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 206 | }; |
| 207 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 208 | ClassLinker* ClassLinker::CreateFromCompiler(const std::vector<const DexFile*>& boot_class_path, |
| 209 | InternTable* intern_table) { |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 210 | CHECK_NE(boot_class_path.size(), 0U); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 211 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 212 | class_linker->InitFromCompiler(boot_class_path); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 213 | return class_linker.release(); |
| 214 | } |
| 215 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 216 | ClassLinker* ClassLinker::CreateFromImage(InternTable* intern_table) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 217 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 218 | class_linker->InitFromImage(); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 219 | return class_linker.release(); |
| 220 | } |
| 221 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 222 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 223 | // dex_lock_ is recursive as it may be used in stack dumping. |
| 224 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel, true), |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 225 | class_roots_(NULL), |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 226 | array_iftable_(NULL), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 227 | init_done_(false), |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 228 | is_dirty_(false), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 229 | intern_table_(intern_table) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 230 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 231 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 232 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 233 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 234 | VLOG(startup) << "ClassLinker::Init"; |
| 235 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 236 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 237 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 238 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 239 | // java_lang_Class comes first, it's needed for AllocClass |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 240 | Thread* self = Thread::Current(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 241 | Heap* heap = Runtime::Current()->GetHeap(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 242 | SirtRef<Class> |
| 243 | java_lang_Class(self, down_cast<Class*>(heap->AllocObject(self, NULL, sizeof(ClassClass)))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 244 | CHECK(java_lang_Class.get() != NULL); |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 245 | Class::SetClassClass(java_lang_Class.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 246 | java_lang_Class->SetClass(java_lang_Class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 247 | java_lang_Class->SetClassSize(sizeof(ClassClass)); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 248 | // AllocClass(Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 249 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 250 | // Class[] is used for reflection support. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 251 | SirtRef<Class> class_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 252 | class_array_class->SetComponentType(java_lang_Class.get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 253 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 254 | // java_lang_Object comes next so that object_array_class can be created. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 255 | SirtRef<Class> java_lang_Object(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 256 | CHECK(java_lang_Object.get() != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 257 | // backfill Object as the super class of Class. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 258 | java_lang_Class->SetSuperClass(java_lang_Object.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 259 | java_lang_Object->SetStatus(Class::kStatusLoaded); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 260 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 261 | // Object[] next to hold class roots. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 262 | SirtRef<Class> object_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 263 | object_array_class->SetComponentType(java_lang_Object.get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 264 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 265 | // Setup the char class to be used for char[]. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 266 | SirtRef<Class> char_class(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 267 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 268 | // Setup the char[] class to be used for String. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 269 | SirtRef<Class> char_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 270 | char_array_class->SetComponentType(char_class.get()); |
| 271 | CharArray::SetArrayClass(char_array_class.get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 272 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 273 | // Setup String. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 274 | SirtRef<Class> java_lang_String(self, AllocClass(self, java_lang_Class.get(), sizeof(StringClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 275 | String::SetClass(java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 276 | java_lang_String->SetObjectSize(sizeof(String)); |
| 277 | java_lang_String->SetStatus(Class::kStatusResolved); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 278 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 279 | // Create storage for root classes, save away our work so far (requires descriptors). |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 280 | class_roots_ = ObjectArray<Class>::Alloc(self, object_array_class.get(), kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 281 | CHECK(class_roots_ != NULL); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 282 | SetClassRoot(kJavaLangClass, java_lang_Class.get()); |
| 283 | SetClassRoot(kJavaLangObject, java_lang_Object.get()); |
| 284 | SetClassRoot(kClassArrayClass, class_array_class.get()); |
| 285 | SetClassRoot(kObjectArrayClass, object_array_class.get()); |
| 286 | SetClassRoot(kCharArrayClass, char_array_class.get()); |
| 287 | SetClassRoot(kJavaLangString, java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 288 | |
| 289 | // Setup the primitive type classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 290 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(self, Primitive::kPrimBoolean)); |
| 291 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(self, Primitive::kPrimByte)); |
| 292 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(self, Primitive::kPrimShort)); |
| 293 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(self, Primitive::kPrimInt)); |
| 294 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(self, Primitive::kPrimLong)); |
| 295 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(self, Primitive::kPrimFloat)); |
| 296 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(self, Primitive::kPrimDouble)); |
| 297 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(self, Primitive::kPrimVoid)); |
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 array interface entries to populate once we can load system classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 300 | array_iftable_ = AllocIfTable(self, 2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 301 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 302 | // Create int array type for AllocDexCache (done in AppendToBootClassPath). |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 303 | SirtRef<Class> int_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 304 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 305 | IntArray::SetArrayClass(int_array_class.get()); |
| 306 | SetClassRoot(kIntArrayClass, int_array_class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 307 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 308 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 309 | |
Ian Rogers | 52813c9 | 2012-10-11 11:50:38 -0700 | [diff] [blame] | 310 | // Set up DexCache. This cannot be done later since AppendToBootClassPath calls AllocDexCache. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 311 | SirtRef<Class> |
| 312 | java_lang_DexCache(self, AllocClass(self, java_lang_Class.get(), sizeof(DexCacheClass))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 313 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.get()); |
| 314 | java_lang_DexCache->SetObjectSize(sizeof(DexCacheClass)); |
| 315 | java_lang_DexCache->SetStatus(Class::kStatusResolved); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 316 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 317 | // Constructor, Field, Method, and AbstractMethod are necessary so that FindClass can link members. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 318 | SirtRef<Class> java_lang_reflect_Field(self, AllocClass(self, java_lang_Class.get(), |
| 319 | sizeof(FieldClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 320 | CHECK(java_lang_reflect_Field.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 321 | java_lang_reflect_Field->SetObjectSize(sizeof(Field)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 322 | SetClassRoot(kJavaLangReflectField, java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 323 | java_lang_reflect_Field->SetStatus(Class::kStatusResolved); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 324 | Field::SetClass(java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 325 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 326 | SirtRef<Class> java_lang_reflect_AbstractMethod(self, AllocClass(self, java_lang_Class.get(), |
| 327 | sizeof(MethodClass))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 328 | CHECK(java_lang_reflect_AbstractMethod.get() != NULL); |
| 329 | java_lang_reflect_AbstractMethod->SetObjectSize(sizeof(AbstractMethod)); |
| 330 | SetClassRoot(kJavaLangReflectAbstractMethod, java_lang_reflect_AbstractMethod.get()); |
| 331 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusResolved); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 332 | |
| 333 | SirtRef<Class> java_lang_reflect_Constructor(self, AllocClass(self, java_lang_Class.get(), |
| 334 | sizeof(MethodClass))); |
| 335 | CHECK(java_lang_reflect_Constructor.get() != NULL); |
| 336 | java_lang_reflect_Constructor->SetObjectSize(sizeof(Constructor)); |
| 337 | java_lang_reflect_Constructor->SetSuperClass(java_lang_reflect_AbstractMethod.get()); |
| 338 | SetClassRoot(kJavaLangReflectConstructor, java_lang_reflect_Constructor.get()); |
| 339 | java_lang_reflect_Constructor->SetStatus(Class::kStatusResolved); |
| 340 | |
| 341 | SirtRef<Class> java_lang_reflect_Method(self, AllocClass(self, java_lang_Class.get(), |
| 342 | sizeof(MethodClass))); |
| 343 | CHECK(java_lang_reflect_Method.get() != NULL); |
| 344 | java_lang_reflect_Method->SetObjectSize(sizeof(Method)); |
| 345 | java_lang_reflect_Method->SetSuperClass(java_lang_reflect_AbstractMethod.get()); |
| 346 | SetClassRoot(kJavaLangReflectMethod, java_lang_reflect_Method.get()); |
| 347 | java_lang_reflect_Method->SetStatus(Class::kStatusResolved); |
| 348 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 349 | AbstractMethod::SetClasses(java_lang_reflect_Constructor.get(), java_lang_reflect_Method.get()); |
| 350 | |
| 351 | // Set up array classes for string, field, method |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 352 | SirtRef<Class> object_array_string(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 353 | object_array_string->SetComponentType(java_lang_String.get()); |
| 354 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.get()); |
| 355 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 356 | SirtRef<Class> object_array_abstract_method(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
| 357 | object_array_abstract_method->SetComponentType(java_lang_reflect_AbstractMethod.get()); |
| 358 | SetClassRoot(kJavaLangReflectAbstractMethodArrayClass, object_array_abstract_method.get()); |
| 359 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 360 | SirtRef<Class> object_array_field(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 361 | object_array_field->SetComponentType(java_lang_reflect_Field.get()); |
| 362 | SetClassRoot(kJavaLangReflectFieldArrayClass, object_array_field.get()); |
| 363 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 364 | SirtRef<Class> object_array_method(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
| 365 | object_array_method->SetComponentType(java_lang_reflect_Method.get()); |
| 366 | SetClassRoot(kJavaLangReflectMethodArrayClass, object_array_method.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 367 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 368 | // Setup boot_class_path_ and register class_path now that we can use AllocObjectArray to create |
| 369 | // DexCache instances. Needs to be after String, Field, Method arrays since AllocDexCache uses |
| 370 | // these roots. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 371 | CHECK_NE(0U, boot_class_path.size()); |
| 372 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 373 | const DexFile* dex_file = boot_class_path[i]; |
| 374 | CHECK(dex_file != NULL); |
| 375 | AppendToBootClassPath(*dex_file); |
| 376 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 377 | |
| 378 | // now we can use FindSystemClass |
| 379 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 380 | // run char class through InitializePrimitiveClass to finish init |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 381 | InitializePrimitiveClass(char_class.get(), Primitive::kPrimChar); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 382 | SetClassRoot(kPrimitiveChar, char_class.get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 383 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 384 | // 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] | 385 | java_lang_Object->SetStatus(Class::kStatusNotReady); |
| 386 | Class* Object_class = FindSystemClass("Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 387 | CHECK_EQ(java_lang_Object.get(), Object_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 388 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(Object)); |
| 389 | java_lang_String->SetStatus(Class::kStatusNotReady); |
| 390 | Class* String_class = FindSystemClass("Ljava/lang/String;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 391 | CHECK_EQ(java_lang_String.get(), String_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 392 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(String)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 393 | java_lang_DexCache->SetStatus(Class::kStatusNotReady); |
| 394 | Class* DexCache_class = FindSystemClass("Ljava/lang/DexCache;"); |
| 395 | CHECK_EQ(java_lang_String.get(), String_class); |
| 396 | CHECK_EQ(java_lang_DexCache.get(), DexCache_class); |
| 397 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), sizeof(DexCache)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 398 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 399 | // 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] | 400 | SetClassRoot(kBooleanArrayClass, FindSystemClass("[Z")); |
| 401 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 402 | |
| 403 | SetClassRoot(kByteArrayClass, FindSystemClass("[B")); |
| 404 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 405 | |
| 406 | Class* found_char_array_class = FindSystemClass("[C"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 407 | CHECK_EQ(char_array_class.get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 408 | |
| 409 | SetClassRoot(kShortArrayClass, FindSystemClass("[S")); |
| 410 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 411 | |
| 412 | Class* found_int_array_class = FindSystemClass("[I"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 413 | CHECK_EQ(int_array_class.get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 414 | |
| 415 | SetClassRoot(kLongArrayClass, FindSystemClass("[J")); |
| 416 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 417 | |
| 418 | SetClassRoot(kFloatArrayClass, FindSystemClass("[F")); |
| 419 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 420 | |
| 421 | SetClassRoot(kDoubleArrayClass, FindSystemClass("[D")); |
| 422 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 423 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 424 | Class* found_class_array_class = FindSystemClass("[Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 425 | CHECK_EQ(class_array_class.get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 426 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 427 | Class* found_object_array_class = FindSystemClass("[Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 428 | CHECK_EQ(object_array_class.get(), found_object_array_class); |
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 | // Setup the single, global copy of "iftable". |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 431 | Class* java_lang_Cloneable = FindSystemClass("Ljava/lang/Cloneable;"); |
| 432 | CHECK(java_lang_Cloneable != NULL); |
| 433 | Class* java_io_Serializable = FindSystemClass("Ljava/io/Serializable;"); |
| 434 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 435 | // We assume that Cloneable/Serializable don't have superinterfaces -- normally we'd have to |
| 436 | // crawl up and explicitly list all of the supers as well. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 437 | array_iftable_->SetInterface(0, java_lang_Cloneable); |
| 438 | array_iftable_->SetInterface(1, java_io_Serializable); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 439 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 440 | // Sanity check Class[] and Object[]'s interfaces. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 441 | ClassHelper kh(class_array_class.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 442 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 443 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 444 | kh.ChangeClass(object_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 445 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 446 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 447 | // Run Class, Constructor, Field, and Method through FindSystemClass. This initializes their |
| 448 | // dex_cache_ fields and register them in classes_. |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 449 | Class* Class_class = FindSystemClass("Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 450 | CHECK_EQ(java_lang_Class.get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 451 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 452 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusNotReady); |
| 453 | Class* Abstract_method_class = FindSystemClass("Ljava/lang/reflect/AbstractMethod;"); |
| 454 | CHECK_EQ(java_lang_reflect_AbstractMethod.get(), Abstract_method_class); |
| 455 | |
| 456 | // Method extends AbstractMethod so must reset after. |
| 457 | java_lang_reflect_Method->SetStatus(Class::kStatusNotReady); |
| 458 | Class* Method_class = FindSystemClass("Ljava/lang/reflect/Method;"); |
| 459 | CHECK_EQ(java_lang_reflect_Method.get(), Method_class); |
| 460 | |
| 461 | // Constructor extends AbstractMethod so must reset after. |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 462 | java_lang_reflect_Constructor->SetStatus(Class::kStatusNotReady); |
| 463 | Class* Constructor_class = FindSystemClass("Ljava/lang/reflect/Constructor;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 464 | CHECK_EQ(java_lang_reflect_Constructor.get(), Constructor_class); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 465 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 466 | java_lang_reflect_Field->SetStatus(Class::kStatusNotReady); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 467 | Class* Field_class = FindSystemClass("Ljava/lang/reflect/Field;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 468 | CHECK_EQ(java_lang_reflect_Field.get(), Field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 469 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 470 | Class* String_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangStringArrayClass]); |
| 471 | CHECK_EQ(object_array_string.get(), String_array_class); |
| 472 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 473 | Class* Abstract_method_array_class = |
| 474 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]); |
| 475 | CHECK_EQ(object_array_abstract_method.get(), Abstract_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 476 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 477 | Class* Field_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangReflectFieldArrayClass]); |
| 478 | CHECK_EQ(object_array_field.get(), Field_array_class); |
| 479 | |
| 480 | Class* Method_array_class = |
| 481 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectMethodArrayClass]); |
| 482 | CHECK_EQ(object_array_method.get(), Method_array_class); |
| 483 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 484 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 485 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 486 | // Create java.lang.reflect.Proxy root. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 487 | Class* java_lang_reflect_Proxy = FindSystemClass("Ljava/lang/reflect/Proxy;"); |
| 488 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 489 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 490 | // 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] | 491 | Class* java_lang_ref_Reference = FindSystemClass("Ljava/lang/ref/Reference;"); |
| 492 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 493 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 494 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 495 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 496 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 497 | Class* java_lang_ref_PhantomReference = FindSystemClass("Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 498 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 499 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 500 | kAccClassIsReference | kAccClassIsPhantomReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 501 | Class* java_lang_ref_SoftReference = FindSystemClass("Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 502 | java_lang_ref_SoftReference->SetAccessFlags( |
| 503 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 504 | Class* java_lang_ref_WeakReference = FindSystemClass("Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 505 | java_lang_ref_WeakReference->SetAccessFlags( |
| 506 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 507 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 508 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 509 | // Setup the ClassLoader, verifying the object_size_. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 510 | Class* java_lang_ClassLoader = FindSystemClass("Ljava/lang/ClassLoader;"); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 511 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 512 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 513 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 514 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 515 | // java.lang.StackTraceElement as a convenience. |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 516 | SetClassRoot(kJavaLangThrowable, FindSystemClass("Ljava/lang/Throwable;")); |
| 517 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 518 | SetClassRoot(kJavaLangClassNotFoundException, FindSystemClass("Ljava/lang/ClassNotFoundException;")); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 519 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass("Ljava/lang/StackTraceElement;")); |
| 520 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass("[Ljava/lang/StackTraceElement;")); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 521 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 522 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 523 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 524 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 525 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | void ClassLinker::FinishInit() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 529 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 530 | |
| 531 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 532 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 533 | // as the types of the field can't be resolved prior to the runtime being |
| 534 | // fully initialized |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 535 | Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 536 | Class* java_lang_ref_ReferenceQueue = FindSystemClass("Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 537 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
| 538 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 539 | const DexFile& java_lang_dex = *java_lang_ref_Reference->GetDexCache()->GetDexFile(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 540 | |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 541 | Field* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 542 | FieldHelper fh(pendingNext, this); |
| 543 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
| 544 | CHECK_EQ(java_lang_dex.GetFieldId(pendingNext->GetDexFieldIndex()).type_idx_, |
| 545 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 546 | |
| 547 | Field* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 548 | fh.ChangeField(queue); |
| 549 | CHECK_STREQ(fh.GetName(), "queue"); |
| 550 | CHECK_EQ(java_lang_dex.GetFieldId(queue->GetDexFieldIndex()).type_idx_, |
| 551 | java_lang_ref_ReferenceQueue->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 552 | |
| 553 | Field* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 554 | fh.ChangeField(queueNext); |
| 555 | CHECK_STREQ(fh.GetName(), "queueNext"); |
| 556 | CHECK_EQ(java_lang_dex.GetFieldId(queueNext->GetDexFieldIndex()).type_idx_, |
| 557 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 558 | |
| 559 | Field* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 560 | fh.ChangeField(referent); |
| 561 | CHECK_STREQ(fh.GetName(), "referent"); |
| 562 | CHECK_EQ(java_lang_dex.GetFieldId(referent->GetDexFieldIndex()).type_idx_, |
| 563 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 564 | |
| 565 | Field* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 566 | fh.ChangeField(zombie); |
| 567 | CHECK_STREQ(fh.GetName(), "zombie"); |
| 568 | CHECK_EQ(java_lang_dex.GetFieldId(zombie->GetDexFieldIndex()).type_idx_, |
| 569 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 570 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 571 | Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 572 | heap->SetReferenceOffsets(referent->GetOffset(), |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 573 | queue->GetOffset(), |
| 574 | queueNext->GetOffset(), |
| 575 | pendingNext->GetOffset(), |
| 576 | zombie->GetOffset()); |
| 577 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 578 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 579 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 580 | ClassRoot class_root = static_cast<ClassRoot>(i); |
| 581 | Class* klass = GetClassRoot(class_root); |
| 582 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 583 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 584 | // note SetClassRoot does additional validation. |
| 585 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 586 | } |
| 587 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 588 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 589 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 590 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 591 | // that Object, Class, and Object[] are setup |
| 592 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 593 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 594 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 595 | } |
| 596 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 597 | void ClassLinker::RunRootClinits() { |
| 598 | Thread* self = Thread::Current(); |
| 599 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
| 600 | Class* c = GetClassRoot(ClassRoot(i)); |
| 601 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 602 | EnsureInitialized(GetClassRoot(ClassRoot(i)), true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 603 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 604 | } |
| 605 | } |
| 606 | } |
| 607 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 608 | bool ClassLinker::GenerateOatFile(const std::string& dex_filename, |
| 609 | int oat_fd, |
| 610 | const std::string& oat_cache_filename) { |
Brian Carlstrom | a56fcd6 | 2012-02-04 21:23:01 -0800 | [diff] [blame] | 611 | std::string dex2oat_string(GetAndroidRoot()); |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 612 | dex2oat_string += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 613 | const char* dex2oat = dex2oat_string.c_str(); |
| 614 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 615 | const char* class_path = Runtime::Current()->GetClassPathString().c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 616 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 617 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 618 | std::string boot_image_option_string("--boot-image="); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 619 | boot_image_option_string += heap->GetImageSpace()->GetImageFilename(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 620 | const char* boot_image_option = boot_image_option_string.c_str(); |
| 621 | |
| 622 | std::string dex_file_option_string("--dex-file="); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 623 | dex_file_option_string += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 624 | const char* dex_file_option = dex_file_option_string.c_str(); |
| 625 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 626 | std::string oat_fd_option_string("--oat-fd="); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 627 | StringAppendF(&oat_fd_option_string, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 628 | const char* oat_fd_option = oat_fd_option_string.c_str(); |
| 629 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 630 | std::string oat_location_option_string("--oat-location="); |
| 631 | oat_location_option_string += oat_cache_filename; |
| 632 | const char* oat_location_option = oat_location_option_string.c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 633 | |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 634 | // fork and exec dex2oat |
| 635 | pid_t pid = fork(); |
| 636 | if (pid == 0) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 637 | // no allocation allowed between fork and exec |
Ian Rogers | 725aee5 | 2012-01-11 11:56:56 -0800 | [diff] [blame] | 638 | |
| 639 | // change process groups, so we don't get reaped by ProcessManager |
| 640 | setpgid(0, 0); |
| 641 | |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 642 | VLOG(class_linker) << dex2oat |
| 643 | << " --runtime-arg -Xms64m" |
| 644 | << " --runtime-arg -Xmx64m" |
| 645 | << " --runtime-arg -classpath" |
| 646 | << " --runtime-arg " << class_path |
| 647 | << " " << boot_image_option |
| 648 | << " " << dex_file_option |
| 649 | << " " << oat_fd_option |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 650 | << " " << oat_location_option; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 651 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 652 | execl(dex2oat, dex2oat, |
jeffhao | 5d84040 | 2011-10-24 17:09:45 -0700 | [diff] [blame] | 653 | "--runtime-arg", "-Xms64m", |
| 654 | "--runtime-arg", "-Xmx64m", |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 655 | "--runtime-arg", "-classpath", |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 656 | "--runtime-arg", class_path, |
| 657 | boot_image_option, |
| 658 | dex_file_option, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 659 | oat_fd_option, |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 660 | oat_location_option, |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 661 | NULL); |
| 662 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 663 | PLOG(FATAL) << "execl(" << dex2oat << ") failed"; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 664 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 665 | } else { |
| 666 | // wait for dex2oat to finish |
| 667 | int status; |
| 668 | pid_t got_pid = TEMP_FAILURE_RETRY(waitpid(pid, &status, 0)); |
| 669 | if (got_pid != pid) { |
| 670 | PLOG(ERROR) << "waitpid failed: wanted " << pid << ", got " << got_pid; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 671 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 672 | } |
| 673 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 674 | LOG(ERROR) << dex2oat << " failed with dex-file=" << dex_filename; |
| 675 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 676 | } |
| 677 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 678 | return true; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 679 | } |
| 680 | |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 681 | void ClassLinker::RegisterOatFile(const OatFile& oat_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 682 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 683 | RegisterOatFileLocked(oat_file); |
| 684 | } |
| 685 | |
| 686 | void ClassLinker::RegisterOatFileLocked(const OatFile& oat_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 687 | dex_lock_.AssertHeld(Thread::Current()); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 688 | #ifndef NDEBUG |
| 689 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 690 | CHECK_NE(&oat_file, oat_files_[i]) << oat_file.GetLocation(); |
| 691 | } |
| 692 | #endif |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 693 | oat_files_.push_back(&oat_file); |
| 694 | } |
| 695 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 696 | OatFile* ClassLinker::OpenOat(const ImageSpace* space) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 697 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 698 | const Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 699 | const ImageHeader& image_header = space->GetImageHeader(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 700 | // Grab location but don't use Object::AsString as we haven't yet initialized the roots to |
| 701 | // check the down cast |
| 702 | String* oat_location = down_cast<String*>(image_header.GetImageRoot(ImageHeader::kOatLocation)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 703 | std::string oat_filename; |
| 704 | oat_filename += runtime->GetHostPrefix(); |
| 705 | oat_filename += oat_location->ToModifiedUtf8(); |
Mathieu Chartier | d8195f1 | 2012-10-05 12:21:28 -0700 | [diff] [blame] | 706 | runtime->GetHeap()->UnReserveOatFileAddressRange(); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 707 | OatFile* oat_file = OatFile::Open(oat_filename, oat_filename, image_header.GetOatDataBegin()); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 708 | VLOG(startup) << "ClassLinker::OpenOat entering oat_filename=" << oat_filename; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 709 | if (oat_file == NULL) { |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 710 | LOG(ERROR) << "Failed to open oat file " << oat_filename << " referenced from image."; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 711 | return NULL; |
| 712 | } |
| 713 | uint32_t oat_checksum = oat_file->GetOatHeader().GetChecksum(); |
| 714 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
| 715 | if (oat_checksum != image_oat_checksum) { |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 716 | LOG(ERROR) << "Failed to match oat file checksum " << std::hex << oat_checksum |
Brian Carlstrom | a85b837 | 2012-10-18 17:00:32 -0700 | [diff] [blame] | 717 | << " to expected oat checksum " << std::hex << image_oat_checksum |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 718 | << " in image"; |
| 719 | return NULL; |
| 720 | } |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 721 | RegisterOatFileLocked(*oat_file); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 722 | VLOG(startup) << "ClassLinker::OpenOat exiting"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 723 | return oat_file; |
| 724 | } |
| 725 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 726 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 727 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 728 | return FindOpenedOatFileFromDexLocation(dex_file.GetLocation()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 729 | } |
| 730 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 731 | const OatFile* ClassLinker::FindOpenedOatFileFromDexLocation(const std::string& dex_location) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 732 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 733 | const OatFile* oat_file = oat_files_[i]; |
| 734 | DCHECK(oat_file != NULL); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 735 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, false); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 736 | if (oat_dex_file != NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 737 | return oat_file; |
| 738 | } |
| 739 | } |
| 740 | return NULL; |
| 741 | } |
| 742 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 743 | static const DexFile* FindDexFileInOatLocation(const std::string& dex_location, |
| 744 | uint32_t dex_location_checksum, |
| 745 | const std::string& oat_location) { |
Brian Carlstrom | 1cac343 | 2012-12-12 10:56:22 -0800 | [diff] [blame] | 746 | UniquePtr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 747 | if (oat_file.get() == NULL) { |
| 748 | return NULL; |
| 749 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 750 | Runtime* runtime = Runtime::Current(); |
| 751 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 752 | if (oat_file->GetOatHeader().GetImageFileLocationOatChecksum() != image_header.GetOatChecksum()) { |
| 753 | return NULL; |
| 754 | } |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 755 | if (oat_file->GetOatHeader().GetImageFileLocationOatDataBegin() |
| 756 | != reinterpret_cast<uint32_t>(image_header.GetOatDataBegin())) { |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 757 | return NULL; |
| 758 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 759 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 760 | if (oat_dex_file == NULL) { |
| 761 | return NULL; |
| 762 | } |
| 763 | if (oat_dex_file->GetDexFileLocationChecksum() != dex_location_checksum) { |
| 764 | return NULL; |
| 765 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 766 | runtime->GetClassLinker()->RegisterOatFile(*oat_file.release()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 767 | return oat_dex_file->OpenDexFile(); |
| 768 | } |
| 769 | |
| 770 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocation(const std::string& dex_location, |
| 771 | const std::string& oat_location) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 772 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 773 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_location); |
| 774 | } |
| 775 | |
| 776 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocationLocked(const std::string& dex_location, |
| 777 | const std::string& oat_location) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 778 | uint32_t dex_location_checksum; |
| 779 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 780 | LOG(ERROR) << "Failed to compute checksum '" << dex_location << "'"; |
| 781 | return NULL; |
| 782 | } |
| 783 | |
| 784 | // Check if we already have an up-to-date output file |
| 785 | const DexFile* dex_file = FindDexFileInOatLocation(dex_location, |
| 786 | dex_location_checksum, |
| 787 | oat_location); |
| 788 | if (dex_file != NULL) { |
| 789 | return dex_file; |
| 790 | } |
| 791 | |
| 792 | // Generate the output oat file for the dex file |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 793 | UniquePtr<File> file(OS::OpenFile(oat_location.c_str(), true)); |
| 794 | if (file.get() == NULL) { |
| 795 | LOG(ERROR) << "Failed to create oat file: " << oat_location; |
| 796 | return NULL; |
| 797 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 798 | if (!GenerateOatFile(dex_location, file->Fd(), oat_location)) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 799 | LOG(ERROR) << "Failed to generate oat file: " << oat_location; |
| 800 | return NULL; |
| 801 | } |
| 802 | // Open the oat from file descriptor we passed to GenerateOatFile |
| 803 | if (lseek(file->Fd(), 0, SEEK_SET) != 0) { |
| 804 | LOG(ERROR) << "Failed to seek to start of generated oat file: " << oat_location; |
| 805 | return NULL; |
| 806 | } |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 807 | const OatFile* oat_file = OatFile::Open(file.get(), oat_location, NULL, false); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 808 | if (oat_file == NULL) { |
| 809 | LOG(ERROR) << "Failed to open generated oat file: " << oat_location; |
| 810 | return NULL; |
| 811 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 812 | RegisterOatFileLocked(*oat_file); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 813 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 814 | if (oat_dex_file == NULL) { |
| 815 | LOG(ERROR) << "Failed to find dex file in generated oat file: " << oat_location; |
| 816 | return NULL; |
| 817 | } |
| 818 | return oat_dex_file->OpenDexFile(); |
| 819 | } |
| 820 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 821 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
| 822 | const std::string& dex_location, |
| 823 | uint32_t dex_location_checksum) { |
| 824 | Runtime* runtime = Runtime::Current(); |
| 825 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 826 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 827 | uint32_t image_oat_data_begin = reinterpret_cast<uint32_t>(image_header.GetOatDataBegin()); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 828 | bool image_check = ((oat_file->GetOatHeader().GetImageFileLocationOatChecksum() == image_oat_checksum) |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 829 | && (oat_file->GetOatHeader().GetImageFileLocationOatDataBegin() == image_oat_data_begin)); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 830 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 831 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 832 | if (oat_dex_file == NULL) { |
| 833 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 834 | << " does not contain contents for " << dex_location; |
| 835 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 836 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 837 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
| 838 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 839 | << " contains contents for " << oat_dex_file->GetDexFileLocation(); |
| 840 | } |
| 841 | return false; |
| 842 | } |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 843 | bool dex_check = dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 844 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 845 | if (image_check && dex_check) { |
| 846 | return true; |
| 847 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 848 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 849 | if (!image_check) { |
| 850 | std::string image_file(image_header.GetImageRoot( |
| 851 | ImageHeader::kOatLocation)->AsString()->ToModifiedUtf8()); |
| 852 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 853 | << " mismatch ( " << std::hex << oat_file->GetOatHeader().GetImageFileLocationOatChecksum() |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 854 | << ", " << oat_file->GetOatHeader().GetImageFileLocationOatDataBegin() |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 855 | << ") with " << image_file |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 856 | << " (" << image_oat_checksum << ", " << std::hex << image_oat_data_begin << ")"; |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 857 | } |
| 858 | if (!dex_check) { |
| 859 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 860 | << " mismatch ( " << std::hex << oat_dex_file->GetDexFileLocationChecksum() |
| 861 | << ") with " << dex_location |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 862 | << " (" << std::hex << dex_location_checksum << ")"; |
| 863 | } |
| 864 | return false; |
| 865 | } |
| 866 | |
| 867 | const DexFile* ClassLinker::VerifyAndOpenDexFileFromOatFile(const OatFile* oat_file, |
| 868 | const std::string& dex_location, |
| 869 | uint32_t dex_location_checksum) { |
| 870 | bool verified = VerifyOatFileChecksums(oat_file, dex_location, dex_location_checksum); |
| 871 | if (!verified) { |
| 872 | return NULL; |
| 873 | } |
| 874 | RegisterOatFileLocked(*oat_file); |
| 875 | return oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 876 | } |
| 877 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 878 | const DexFile* ClassLinker::FindDexFileInOatFileFromDexLocation(const std::string& dex_location) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 879 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 880 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 881 | const OatFile* open_oat_file = FindOpenedOatFileFromDexLocation(dex_location); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 882 | if (open_oat_file != NULL) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 883 | return open_oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 884 | } |
| 885 | |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 886 | // Look for an existing file next to dex. for example, for |
| 887 | // /foo/bar/baz.jar, look for /foo/bar/baz.jar.oat. |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 888 | std::string oat_filename(OatFile::DexFilenameToOatFilename(dex_location)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 889 | const OatFile* oat_file = FindOatFileFromOatLocationLocked(oat_filename); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 890 | if (oat_file != NULL) { |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 891 | uint32_t dex_location_checksum; |
| 892 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 893 | // If no classes.dex found in dex_location, it has been stripped, assume oat is up-to-date. |
| 894 | // This is the common case in user builds for jar's and apk's in the /system directory. |
| 895 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 896 | CHECK(oat_dex_file != NULL) << oat_filename << " " << dex_location; |
| 897 | RegisterOatFileLocked(*oat_file); |
| 898 | return oat_dex_file->OpenDexFile(); |
| 899 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 900 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 901 | dex_location, |
| 902 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 903 | if (dex_file != NULL) { |
| 904 | return dex_file; |
| 905 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 906 | } |
| 907 | // Look for an existing file in the art-cache, validating the result if found |
| 908 | // not found in /foo/bar/baz.oat? try /data/art-cache/foo@bar@baz.oat |
| 909 | std::string cache_location(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 910 | oat_file = FindOatFileFromOatLocationLocked(cache_location); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 911 | if (oat_file != NULL) { |
| 912 | uint32_t dex_location_checksum; |
| 913 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 914 | LOG(WARNING) << "Failed to compute checksum: " << dex_location; |
| 915 | return NULL; |
| 916 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 917 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 918 | dex_location, |
| 919 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 920 | if (dex_file != NULL) { |
| 921 | return dex_file; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 922 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 923 | if (TEMP_FAILURE_RETRY(unlink(oat_file->GetLocation().c_str())) != 0) { |
Brian Carlstrom | 5ef7493 | 2012-03-23 17:56:02 -0700 | [diff] [blame] | 924 | PLOG(FATAL) << "Failed to remove obsolete .oat file " << oat_file->GetLocation(); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 925 | } |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 926 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 927 | LOG(INFO) << "Failed to open oat file from " << oat_filename << " or " << cache_location << "."; |
| 928 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 929 | // Try to generate oat file if it wasn't found or was obsolete. |
| 930 | std::string oat_cache_filename(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 931 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_cache_filename); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 932 | } |
| 933 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 934 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 935 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 936 | const OatFile* oat_file = oat_files_[i]; |
| 937 | DCHECK(oat_file != NULL); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 938 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 939 | return oat_file; |
| 940 | } |
| 941 | } |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 942 | return NULL; |
| 943 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 944 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 945 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 946 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 947 | return FindOatFileFromOatLocationLocked(oat_location); |
| 948 | } |
| 949 | |
| 950 | const OatFile* ClassLinker::FindOatFileFromOatLocationLocked(const std::string& oat_location) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 951 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
| 952 | if (oat_file != NULL) { |
| 953 | return oat_file; |
| 954 | } |
| 955 | |
Brian Carlstrom | 1cac343 | 2012-12-12 10:56:22 -0800 | [diff] [blame] | 956 | oat_file = OatFile::Open(oat_location, oat_location, NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 957 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 958 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 959 | } |
| 960 | return oat_file; |
| 961 | } |
| 962 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 963 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 964 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 965 | CHECK(!init_done_); |
| 966 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 967 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 968 | ImageSpace* space = heap->GetImageSpace(); |
| 969 | OatFile* oat_file = OpenOat(space); |
| 970 | CHECK(oat_file != NULL) << "Failed to open oat file for image"; |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 971 | CHECK_EQ(oat_file->GetOatHeader().GetImageFileLocationOatChecksum(), 0U); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 972 | CHECK_EQ(oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(), 0U); |
Elliott Hughes | 7484741 | 2012-06-20 18:10:21 -0700 | [diff] [blame] | 973 | CHECK(oat_file->GetOatHeader().GetImageFileLocation().empty()); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 974 | Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 975 | ObjectArray<DexCache>* dex_caches = dex_caches_object->AsObjectArray<DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 976 | |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 977 | ObjectArray<Class>* class_roots = |
| 978 | space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots)->AsObjectArray<Class>(); |
| 979 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 980 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 981 | // as being Strings or not |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 982 | String::SetClass(class_roots->Get(kJavaLangString)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 983 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 984 | CHECK_EQ(oat_file->GetOatHeader().GetDexFileCount(), |
| 985 | static_cast<uint32_t>(dex_caches->GetLength())); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 986 | Thread* self = Thread::Current(); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 987 | for (int i = 0; i < dex_caches->GetLength(); i++) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 988 | SirtRef<DexCache> dex_cache(self, dex_caches->Get(i)); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 989 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
| 990 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file_location); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame^] | 991 | CHECK(oat_dex_file != NULL) << oat_file->GetLocation() << " " << dex_file_location; |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 992 | const DexFile* dex_file = oat_dex_file->OpenDexFile(); |
| 993 | if (dex_file == NULL) { |
| 994 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
| 995 | << " from within oat file " << oat_file->GetLocation(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 996 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 997 | |
| 998 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 999 | |
| 1000 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1001 | } |
| 1002 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1003 | // reinit clases_ table |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 1004 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1005 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 1006 | heap->FlushAllocStack(); |
Mathieu Chartier | e0f0cb3 | 2012-08-28 11:26:00 -0700 | [diff] [blame] | 1007 | heap->GetLiveBitmap()->Walk(InitFromImageCallback, this); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 1008 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1009 | |
| 1010 | // reinit class_roots_ |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1011 | Class::SetClassClass(class_roots->Get(kJavaLangClass)); |
| 1012 | class_roots_ = class_roots; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1013 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1014 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1015 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 1016 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1017 | // String class root was set above |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1018 | Field::SetClass(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1019 | AbstractMethod::SetClasses(GetClassRoot(kJavaLangReflectConstructor), |
| 1020 | GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1021 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 1022 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 1023 | CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 1024 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 1025 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 1026 | IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1027 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1028 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1029 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1030 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1031 | |
| 1032 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1033 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1034 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1035 | } |
| 1036 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 1037 | void ClassLinker::InitFromImageCallback(Object* obj, void* arg) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1038 | DCHECK(obj != NULL); |
| 1039 | DCHECK(arg != NULL); |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1040 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1041 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1042 | if (obj->GetClass()->IsStringClass()) { |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1043 | class_linker->intern_table_->RegisterStrong(obj->AsString()); |
Brian Carlstrom | c74255f | 2011-09-11 22:47:39 -0700 | [diff] [blame] | 1044 | return; |
| 1045 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1046 | if (obj->IsClass()) { |
| 1047 | // restore class to ClassLinker::classes_ table |
| 1048 | Class* klass = obj->AsClass(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1049 | ClassHelper kh(klass, class_linker); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1050 | Class* existing = class_linker->InsertClass(kh.GetDescriptor(), klass, true); |
| 1051 | DCHECK(existing == NULL) << kh.GetDescriptor(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1052 | return; |
| 1053 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1054 | } |
| 1055 | |
| 1056 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1057 | // reinit references to when reinitializing a ClassLinker from a |
| 1058 | // mapped image. |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 1059 | void ClassLinker::VisitRoots(Heap::RootVisitor* visitor, void* arg) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1060 | visitor(class_roots_, arg); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1061 | Thread* self = Thread::Current(); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1062 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1063 | MutexLock mu(self, dex_lock_); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1064 | for (size_t i = 0; i < dex_caches_.size(); i++) { |
| 1065 | visitor(dex_caches_[i], arg); |
| 1066 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1067 | } |
| 1068 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1069 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1070 | MutexLock mu(self, *Locks::classlinker_classes_lock_); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1071 | typedef Table::const_iterator It; // TODO: C++0x auto |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1072 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1073 | visitor(it->second, arg); |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1074 | } |
Mathieu Chartier | 262e5ff | 2012-06-01 17:35:38 -0700 | [diff] [blame] | 1075 | |
| 1076 | // We deliberately ignore the class roots in the image since we |
| 1077 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1078 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1079 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1080 | visitor(array_iftable_, arg); |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 1081 | is_dirty_ = false; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1082 | } |
| 1083 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1084 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1085 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1086 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 1087 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 1088 | if (!visitor(it->second, arg)) { |
| 1089 | return; |
| 1090 | } |
| 1091 | } |
| 1092 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 1093 | if (!visitor(it->second, arg)) { |
| 1094 | return; |
| 1095 | } |
| 1096 | } |
| 1097 | } |
| 1098 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1099 | static bool GetClassesVisitor(Class* c, void* arg) { |
| 1100 | std::set<Class*>* classes = reinterpret_cast<std::set<Class*>*>(arg); |
| 1101 | classes->insert(c); |
| 1102 | return true; |
| 1103 | } |
| 1104 | |
| 1105 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) const { |
| 1106 | std::set<Class*> classes; |
| 1107 | VisitClasses(GetClassesVisitor, &classes); |
| 1108 | typedef std::set<Class*>::const_iterator It; // TODO: C++0x auto |
| 1109 | for (It it = classes.begin(), end = classes.end(); it != end; ++it) { |
| 1110 | if (!visitor(*it, arg)) { |
| 1111 | return; |
| 1112 | } |
| 1113 | } |
| 1114 | } |
| 1115 | |
| 1116 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1117 | ClassLinker::~ClassLinker() { |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1118 | Class::ResetClass(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1119 | String::ResetClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1120 | Field::ResetClass(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1121 | AbstractMethod::ResetClasses(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1122 | BooleanArray::ResetArrayClass(); |
| 1123 | ByteArray::ResetArrayClass(); |
| 1124 | CharArray::ResetArrayClass(); |
| 1125 | DoubleArray::ResetArrayClass(); |
| 1126 | FloatArray::ResetArrayClass(); |
| 1127 | IntArray::ResetArrayClass(); |
| 1128 | LongArray::ResetArrayClass(); |
| 1129 | ShortArray::ResetArrayClass(); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1130 | Throwable::ResetClass(); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1131 | StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1132 | STLDeleteElements(&boot_class_path_); |
| 1133 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1134 | } |
| 1135 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1136 | DexCache* ClassLinker::AllocDexCache(Thread* self, const DexFile& dex_file) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1137 | Heap* heap = Runtime::Current()->GetHeap(); |
| 1138 | Class* dex_cache_class = GetClassRoot(kJavaLangDexCache); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1139 | SirtRef<DexCache> dex_cache(self, |
| 1140 | down_cast<DexCache*>(heap->AllocObject(self, dex_cache_class, |
| 1141 | dex_cache_class->GetObjectSize()))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1142 | if (dex_cache.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1143 | return NULL; |
| 1144 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1145 | SirtRef<String> location(self, intern_table_->InternStrong(dex_file.GetLocation().c_str())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1146 | if (location.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1147 | return NULL; |
| 1148 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1149 | SirtRef<ObjectArray<String> > strings(self, AllocStringArray(self, dex_file.NumStringIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1150 | if (strings.get() == NULL) { |
| 1151 | return NULL; |
| 1152 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1153 | SirtRef<ObjectArray<Class> > types(self, AllocClassArray(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1154 | if (types.get() == NULL) { |
| 1155 | return NULL; |
| 1156 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1157 | SirtRef<ObjectArray<AbstractMethod> > |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1158 | methods(self, AllocAbstractMethodArray(self, dex_file.NumMethodIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1159 | if (methods.get() == NULL) { |
| 1160 | return NULL; |
| 1161 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1162 | SirtRef<ObjectArray<Field> > fields(self, AllocFieldArray(self, dex_file.NumFieldIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1163 | if (fields.get() == NULL) { |
| 1164 | return NULL; |
| 1165 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1166 | SirtRef<ObjectArray<StaticStorageBase> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1167 | initialized_static_storage(self, |
| 1168 | AllocObjectArray<StaticStorageBase>(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1169 | if (initialized_static_storage.get() == NULL) { |
| 1170 | return NULL; |
| 1171 | } |
| 1172 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1173 | dex_cache->Init(&dex_file, |
| 1174 | location.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1175 | strings.get(), |
| 1176 | types.get(), |
| 1177 | methods.get(), |
| 1178 | fields.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1179 | initialized_static_storage.get()); |
| 1180 | return dex_cache.get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1181 | } |
| 1182 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1183 | Class* ClassLinker::AllocClass(Thread* self, Class* java_lang_Class, size_t class_size) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1184 | DCHECK_GE(class_size, sizeof(Class)); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1185 | Heap* heap = Runtime::Current()->GetHeap(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1186 | SirtRef<Class> klass(self, |
| 1187 | heap->AllocObject(self, java_lang_Class, class_size)->AsClass()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1188 | klass->SetPrimitiveType(Primitive::kPrimNot); // default to not being primitive |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1189 | klass->SetClassSize(class_size); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1190 | return klass.get(); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1191 | } |
| 1192 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1193 | Class* ClassLinker::AllocClass(Thread* self, size_t class_size) { |
| 1194 | return AllocClass(self, GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1195 | } |
| 1196 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1197 | Field* ClassLinker::AllocField(Thread* self) { |
| 1198 | return down_cast<Field*>(GetClassRoot(kJavaLangReflectField)->AllocObject(self)); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1199 | } |
| 1200 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1201 | Method* ClassLinker::AllocMethod(Thread* self) { |
| 1202 | return down_cast<Method*>(GetClassRoot(kJavaLangReflectMethod)->AllocObject(self)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1203 | } |
| 1204 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1205 | Constructor* ClassLinker::AllocConstructor(Thread* self) { |
| 1206 | return down_cast<Constructor*>(GetClassRoot(kJavaLangReflectConstructor)->AllocObject(self)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1207 | } |
| 1208 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1209 | ObjectArray<StackTraceElement>* ClassLinker::AllocStackTraceElementArray(Thread* self, |
| 1210 | size_t length) { |
| 1211 | return ObjectArray<StackTraceElement>::Alloc(self, |
| 1212 | GetClassRoot(kJavaLangStackTraceElementArrayClass), |
| 1213 | length); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1214 | } |
| 1215 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1216 | static Class* EnsureResolved(Thread* self, Class* klass) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1217 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1218 | DCHECK(klass != NULL); |
| 1219 | // Wait for the class if it has not already been linked. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1220 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1221 | ObjectLock lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1222 | // Check for circular dependencies between classes. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1223 | if (!klass->IsResolved() && klass->GetClinitThreadId() == self->GetTid()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 1224 | self->ThrowNewException("Ljava/lang/ClassCircularityError;", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1225 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1226 | klass->SetStatus(Class::kStatusError); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1227 | return NULL; |
| 1228 | } |
| 1229 | // Wait for the pending initialization to complete. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1230 | while (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1231 | lock.Wait(); |
| 1232 | } |
| 1233 | } |
| 1234 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1235 | ThrowEarlierClassFailure(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1236 | return NULL; |
| 1237 | } |
| 1238 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1239 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
| 1240 | CHECK(!self->IsExceptionPending()) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1241 | << PrettyClass(klass) << " " << PrettyTypeOf(self->GetException()) << "\n" |
| 1242 | << self->GetException()->Dump(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1243 | return klass; |
| 1244 | } |
| 1245 | |
Elliott Hughes | db7d5e9 | 2011-12-16 18:47:37 -0800 | [diff] [blame] | 1246 | Class* ClassLinker::FindSystemClass(const char* descriptor) { |
| 1247 | return FindClass(descriptor, NULL); |
| 1248 | } |
| 1249 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1250 | Class* ClassLinker::FindClass(const char* descriptor, ClassLoader* class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1251 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1252 | Thread* self = Thread::Current(); |
| 1253 | DCHECK(self != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1254 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1255 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1256 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1257 | // for primitive classes that aren't backed by dex files. |
| 1258 | return FindPrimitiveClass(descriptor[0]); |
| 1259 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1260 | // Find the class in the loaded classes table. |
| 1261 | Class* klass = LookupClass(descriptor, class_loader); |
| 1262 | if (klass != NULL) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1263 | return EnsureResolved(self, klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1264 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1265 | // Class is not yet loaded. |
| 1266 | if (descriptor[0] == '[') { |
| 1267 | return CreateArrayClass(descriptor, class_loader); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1268 | |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1269 | } else if (class_loader == NULL) { |
| 1270 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1271 | if (pair.second != NULL) { |
| 1272 | return DefineClass(descriptor, NULL, *pair.first, *pair.second); |
| 1273 | } |
| 1274 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1275 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1276 | // first try the boot class path |
| 1277 | Class* system_class = FindSystemClass(descriptor); |
| 1278 | if (system_class != NULL) { |
| 1279 | return system_class; |
| 1280 | } |
| 1281 | CHECK(self->IsExceptionPending()); |
| 1282 | self->ClearException(); |
| 1283 | |
| 1284 | // next try the compile time class path |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1285 | const std::vector<const DexFile*>* class_path; |
| 1286 | { |
| 1287 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1288 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), soa.AddLocalReference<jobject>(class_loader)); |
| 1289 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1290 | } |
| 1291 | |
| 1292 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1293 | if (pair.second != NULL) { |
| 1294 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1295 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1296 | |
| 1297 | } else { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1298 | ScopedObjectAccessUnchecked soa(self->GetJniEnv()); |
| 1299 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
| 1300 | soa.AddLocalReference<jobject>(class_loader)); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1301 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1302 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1303 | { |
| 1304 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1305 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1306 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1307 | if (class_name_object.get() == NULL) { |
| 1308 | return NULL; |
| 1309 | } |
| 1310 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1311 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1312 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1313 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1314 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1315 | if (soa.Env()->ExceptionCheck()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1316 | // If the ClassLoader threw, pass that exception up. |
| 1317 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1318 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1319 | // broken loader - throw NPE to be compatible with Dalvik |
| 1320 | ThrowNullPointerException("ClassLoader.loadClass returned null for %s", |
| 1321 | class_name_string.c_str()); |
| 1322 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1323 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1324 | // success, return Class* |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1325 | return soa.Decode<Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1326 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1327 | } |
| 1328 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1329 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1330 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1331 | } |
| 1332 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1333 | Class* ClassLinker::DefineClass(const StringPiece& descriptor, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1334 | ClassLoader* class_loader, |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1335 | const DexFile& dex_file, |
| 1336 | const DexFile::ClassDef& dex_class_def) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1337 | Thread* self = Thread::Current(); |
| 1338 | SirtRef<Class> klass(self, NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1339 | // Load the class from the dex file. |
| 1340 | if (!init_done_) { |
| 1341 | // finish up init of hand crafted class_roots_ |
| 1342 | if (descriptor == "Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1343 | klass.reset(GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1344 | } else if (descriptor == "Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1345 | klass.reset(GetClassRoot(kJavaLangClass)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1346 | } else if (descriptor == "Ljava/lang/String;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1347 | klass.reset(GetClassRoot(kJavaLangString)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1348 | } else if (descriptor == "Ljava/lang/DexCache;") { |
| 1349 | klass.reset(GetClassRoot(kJavaLangDexCache)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1350 | } else if (descriptor == "Ljava/lang/reflect/Field;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1351 | klass.reset(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1352 | } else if (descriptor == "Ljava/lang/reflect/AbstractMethod;") { |
| 1353 | klass.reset(GetClassRoot(kJavaLangReflectAbstractMethod)); |
| 1354 | } else if (descriptor == "Ljava/lang/reflect/Constructor;") { |
| 1355 | klass.reset(GetClassRoot(kJavaLangReflectConstructor)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1356 | } else if (descriptor == "Ljava/lang/reflect/Method;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1357 | klass.reset(GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1358 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1359 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1360 | } |
| 1361 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1362 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1363 | } |
| 1364 | klass->SetDexCache(FindDexCache(dex_file)); |
| 1365 | LoadClass(dex_file, dex_class_def, klass, class_loader); |
| 1366 | // Check for a pending exception during load |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1367 | if (self->IsExceptionPending()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1368 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1369 | return NULL; |
| 1370 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1371 | ObjectLock lock(self, klass.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1372 | klass->SetClinitThreadId(self->GetTid()); |
| 1373 | // Add the newly loaded class to the loaded classes table. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1374 | SirtRef<Class> existing(self, InsertClass(descriptor, klass.get(), false)); |
Brian Carlstrom | 01e076e | 2012-03-30 11:54:16 -0700 | [diff] [blame] | 1375 | if (existing.get() != NULL) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1376 | // We failed to insert because we raced with another thread. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1377 | return EnsureResolved(self, existing.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1378 | } |
| 1379 | // Finish loading (if necessary) by finding parents |
| 1380 | CHECK(!klass->IsLoaded()); |
| 1381 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1382 | // Loading failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1383 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1384 | lock.NotifyAll(); |
| 1385 | return NULL; |
| 1386 | } |
| 1387 | CHECK(klass->IsLoaded()); |
| 1388 | // Link the class (if necessary) |
| 1389 | CHECK(!klass->IsResolved()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1390 | if (!LinkClass(klass, NULL)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1391 | // Linking failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1392 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1393 | lock.NotifyAll(); |
| 1394 | return NULL; |
| 1395 | } |
| 1396 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1397 | |
| 1398 | /* |
| 1399 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1400 | * definition of "preparation" is creating the static fields for a |
| 1401 | * class and initializing them to the standard default values, but not |
| 1402 | * executing any code (that comes later, during "initialization"). |
| 1403 | * |
| 1404 | * We did the static preparation in LinkClass. |
| 1405 | * |
| 1406 | * The class has been prepared and resolved but possibly not yet verified |
| 1407 | * at this point. |
| 1408 | */ |
| 1409 | Dbg::PostClassPrepare(klass.get()); |
| 1410 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1411 | return klass.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1412 | } |
| 1413 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1414 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
| 1415 | size_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
| 1416 | const DexFile::ClassDef& dex_class_def) { |
| 1417 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1418 | size_t num_ref = 0; |
| 1419 | size_t num_32 = 0; |
| 1420 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1421 | if (class_data != NULL) { |
| 1422 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1423 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1424 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1425 | char c = descriptor[0]; |
| 1426 | if (c == 'L' || c == '[') { |
| 1427 | num_ref++; |
| 1428 | } else if (c == 'J' || c == 'D') { |
| 1429 | num_64++; |
| 1430 | } else { |
| 1431 | num_32++; |
| 1432 | } |
| 1433 | } |
| 1434 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1435 | // start with generic class data |
| 1436 | size_t size = sizeof(Class); |
| 1437 | // follow with reference fields which must be contiguous at start |
| 1438 | size += (num_ref * sizeof(uint32_t)); |
| 1439 | // if there are 64-bit fields to add, make sure they are aligned |
| 1440 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
| 1441 | if (num_32 != 0) { |
| 1442 | // use an available 32-bit field for padding |
| 1443 | num_32--; |
| 1444 | } |
| 1445 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1446 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1447 | } |
| 1448 | // tack on any 64-bit fields now that alignment is assured |
| 1449 | size += (num_64 * sizeof(uint64_t)); |
| 1450 | // tack on any remaining 32-bit fields |
| 1451 | size += (num_32 * sizeof(uint32_t)); |
| 1452 | return size; |
| 1453 | } |
| 1454 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1455 | const OatFile::OatClass* ClassLinker::GetOatClass(const DexFile& dex_file, const char* descriptor) { |
| 1456 | DCHECK(descriptor != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1457 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 1458 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1459 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
| 1460 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1461 | uint32_t class_def_index; |
| 1462 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
| 1463 | CHECK(found) << dex_file.GetLocation() << " " << descriptor; |
| 1464 | const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_index); |
| 1465 | CHECK(oat_class != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1466 | return oat_class; |
| 1467 | } |
| 1468 | |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1469 | static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, uint32_t method_idx) { |
| 1470 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 1471 | const DexFile::TypeId& type_id = dex_file.GetTypeId(method_id.class_idx_); |
| 1472 | const DexFile::ClassDef* class_def = dex_file.FindClassDef(dex_file.GetTypeDescriptor(type_id)); |
| 1473 | CHECK(class_def != NULL); |
| 1474 | const byte* class_data = dex_file.GetClassData(*class_def); |
| 1475 | CHECK(class_data != NULL); |
| 1476 | ClassDataItemIterator it(dex_file, class_data); |
| 1477 | // Skip fields |
| 1478 | while (it.HasNextStaticField()) { |
| 1479 | it.Next(); |
| 1480 | } |
| 1481 | while (it.HasNextInstanceField()) { |
| 1482 | it.Next(); |
| 1483 | } |
| 1484 | // Process methods |
| 1485 | size_t class_def_method_index = 0; |
| 1486 | while (it.HasNextDirectMethod()) { |
| 1487 | if (it.GetMemberIndex() == method_idx) { |
| 1488 | return class_def_method_index; |
| 1489 | } |
| 1490 | class_def_method_index++; |
| 1491 | it.Next(); |
| 1492 | } |
| 1493 | while (it.HasNextVirtualMethod()) { |
| 1494 | if (it.GetMemberIndex() == method_idx) { |
| 1495 | return class_def_method_index; |
| 1496 | } |
| 1497 | class_def_method_index++; |
| 1498 | it.Next(); |
| 1499 | } |
| 1500 | DCHECK(!it.HasNext()); |
| 1501 | LOG(FATAL) << "Failed to find method index " << method_idx << " in " << dex_file.GetLocation(); |
| 1502 | return 0; |
| 1503 | } |
| 1504 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1505 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(const AbstractMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1506 | // 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] | 1507 | // method for direct methods (or virtual methods made direct). |
| 1508 | Class* declaring_class = method->GetDeclaringClass(); |
| 1509 | size_t oat_method_index; |
| 1510 | if (method->IsStatic() || method->IsDirect()) { |
| 1511 | // Simple case where the oat method index was stashed at load time. |
| 1512 | oat_method_index = method->GetMethodIndex(); |
| 1513 | } else { |
| 1514 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1515 | // by search for its position in the declared virtual methods. |
| 1516 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1517 | size_t end = declaring_class->NumVirtualMethods(); |
| 1518 | bool found = false; |
| 1519 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1520 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1521 | found = true; |
| 1522 | break; |
| 1523 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1524 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1525 | } |
| 1526 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1527 | } |
| 1528 | ClassHelper kh(declaring_class); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1529 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(kh.GetDexFile(), kh.GetDescriptor())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1530 | CHECK(oat_class.get() != NULL); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1531 | DCHECK_EQ(oat_method_index, |
| 1532 | GetOatMethodIndexFromMethodIndex(*declaring_class->GetDexCache()->GetDexFile(), |
| 1533 | method->GetDexMethodIndex())); |
| 1534 | |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1535 | return oat_class->GetOatMethod(oat_method_index); |
| 1536 | } |
| 1537 | |
| 1538 | // Special case to get oat code without overwriting a trampoline. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1539 | const void* ClassLinker::GetOatCodeFor(const AbstractMethod* method) { |
TDYa127 | ccffd9e | 2012-04-08 14:37:03 -0700 | [diff] [blame] | 1540 | CHECK(Runtime::Current()->IsCompiler() || method->GetDeclaringClass()->IsInitializing()); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1541 | return GetOatMethodFor(method).GetCode(); |
| 1542 | } |
| 1543 | |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1544 | const void* ClassLinker::GetOatCodeFor(const DexFile& dex_file, uint32_t method_idx) { |
| 1545 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 1546 | const char* descriptor = dex_file.GetTypeDescriptor(dex_file.GetTypeId(method_id.class_idx_)); |
| 1547 | uint32_t oat_method_idx = GetOatMethodIndexFromMethodIndex(dex_file, method_idx); |
| 1548 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, descriptor)); |
| 1549 | CHECK(oat_class.get() != NULL); |
| 1550 | return oat_class->GetOatMethod(oat_method_idx).GetCode(); |
| 1551 | } |
| 1552 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1553 | void ClassLinker::FixupStaticTrampolines(Class* klass) { |
| 1554 | ClassHelper kh(klass); |
| 1555 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 1556 | CHECK(dex_class_def != NULL); |
| 1557 | const DexFile& dex_file = kh.GetDexFile(); |
| 1558 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1559 | if (class_data == NULL) { |
| 1560 | return; // no fields or methods - for example a marker interface |
| 1561 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1562 | if (!Runtime::Current()->IsStarted() || Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1563 | // OAT file unavailable |
| 1564 | return; |
| 1565 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1566 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, kh.GetDescriptor())); |
| 1567 | CHECK(oat_class.get() != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1568 | ClassDataItemIterator it(dex_file, class_data); |
| 1569 | // Skip fields |
| 1570 | while (it.HasNextStaticField()) { |
| 1571 | it.Next(); |
| 1572 | } |
| 1573 | while (it.HasNextInstanceField()) { |
| 1574 | it.Next(); |
| 1575 | } |
| 1576 | size_t method_index = 0; |
| 1577 | // Link the code of methods skipped by LinkCode |
| 1578 | const void* trampoline = Runtime::Current()->GetResolutionStubArray(Runtime::kStaticMethod)->GetData(); |
| 1579 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1580 | AbstractMethod* method = klass->GetDirectMethod(i); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1581 | if (Runtime::Current()->IsMethodTracingActive()) { |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1582 | Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| 1583 | if (instrumentation->GetSavedCodeFromMap(method) == trampoline) { |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1584 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1585 | instrumentation->ResetSavedCode(method); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1586 | method->SetCode(code); |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1587 | instrumentation->SaveAndUpdateCode(method); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1588 | } |
| 1589 | } else if (method->GetCode() == trampoline) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1590 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 1591 | CHECK(code != NULL) |
| 1592 | << "Resolving a static trampoline but found no code for: " << PrettyMethod(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1593 | method->SetCode(code); |
| 1594 | } |
| 1595 | method_index++; |
| 1596 | } |
| 1597 | } |
| 1598 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1599 | static void LinkCode(SirtRef<AbstractMethod>& method, const OatFile::OatClass* oat_class, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1600 | uint32_t method_index) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1601 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1602 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1603 | // non-abstract methods also get their code pointers. |
| 1604 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1605 | oat_method.LinkMethodPointers(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1606 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1607 | Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1608 | if (method->IsAbstract()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1609 | method->SetCode(runtime->GetAbstractMethodErrorStubArray()->GetData()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1610 | return; |
| 1611 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1612 | |
| 1613 | if (method->IsStatic() && !method->IsConstructor()) { |
| 1614 | // For static methods excluding the class initializer, install the trampoline |
| 1615 | method->SetCode(runtime->GetResolutionStubArray(Runtime::kStaticMethod)->GetData()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 1616 | } |
| 1617 | if (method->IsNative()) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1618 | // unregistering restores the dlsym lookup stub |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1619 | method->UnregisterNative(Thread::Current()); |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1620 | } |
| 1621 | |
| 1622 | if (Runtime::Current()->IsMethodTracingActive()) { |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1623 | Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| 1624 | instrumentation->SaveAndUpdateCode(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1625 | } |
| 1626 | } |
| 1627 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1628 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1629 | const DexFile::ClassDef& dex_class_def, |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1630 | SirtRef<Class>& klass, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1631 | ClassLoader* class_loader) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1632 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1633 | CHECK(klass->GetDexCache() != NULL); |
| 1634 | CHECK_EQ(Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1635 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1636 | CHECK(descriptor != NULL); |
| 1637 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1638 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1639 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1640 | // Make sure that none of our runtime-only flags are set. |
mikaelpeltier | 6ffd096 | 2012-10-25 15:37:45 +0200 | [diff] [blame] | 1641 | // TODO: JACK CLASS ACCESS (HACK TO BE REMOVED) |
| 1642 | CHECK_EQ(access_flags & ~(kAccJavaFlagsMask | kAccClassJack), 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1643 | klass->SetAccessFlags(access_flags); |
| 1644 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1645 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1646 | klass->SetStatus(Class::kStatusIdx); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1647 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1648 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1649 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1650 | // Load fields fields. |
| 1651 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1652 | if (class_data == NULL) { |
| 1653 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1654 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1655 | ClassDataItemIterator it(dex_file, class_data); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1656 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1657 | if (it.NumStaticFields() != 0) { |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1658 | klass->SetSFields(AllocFieldArray(self, it.NumStaticFields())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1659 | } |
| 1660 | if (it.NumInstanceFields() != 0) { |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1661 | klass->SetIFields(AllocFieldArray(self, it.NumInstanceFields())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1662 | } |
| 1663 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1664 | SirtRef<Field> sfield(self, AllocField(self)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1665 | klass->SetStaticField(i, sfield.get()); |
| 1666 | LoadField(dex_file, it, klass, sfield); |
| 1667 | } |
| 1668 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1669 | SirtRef<Field> ifield(self, AllocField(self)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1670 | klass->SetInstanceField(i, ifield.get()); |
| 1671 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1672 | } |
| 1673 | |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1674 | UniquePtr<const OatFile::OatClass> oat_class; |
| 1675 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
| 1676 | oat_class.reset(GetOatClass(dex_file, descriptor)); |
| 1677 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1678 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1679 | // Load methods. |
| 1680 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1681 | // TODO: append direct methods to class object |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1682 | klass->SetDirectMethods(AllocAbstractMethodArray(self, it.NumDirectMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1683 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1684 | if (it.NumVirtualMethods() != 0) { |
| 1685 | // TODO: append direct methods to class object |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1686 | klass->SetVirtualMethods(AllocMethodArray(self, it.NumVirtualMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1687 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1688 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1689 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1690 | SirtRef<AbstractMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1691 | klass->SetDirectMethod(i, method.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1692 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1693 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1694 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1695 | method->SetMethodIndex(class_def_method_index); |
| 1696 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1697 | } |
| 1698 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1699 | SirtRef<AbstractMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1700 | klass->SetVirtualMethod(i, method.get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1701 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1702 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1703 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1704 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1705 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1706 | } |
| 1707 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1708 | } |
| 1709 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1710 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1711 | SirtRef<Class>& klass, SirtRef<Field>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1712 | uint32_t field_idx = it.GetMemberIndex(); |
| 1713 | dst->SetDexFieldIndex(field_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1714 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1715 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1716 | } |
| 1717 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1718 | AbstractMethod* ClassLinker::LoadMethod(Thread* self, const DexFile& dex_file, |
| 1719 | const ClassDataItemIterator& it, |
| 1720 | SirtRef<Class>& klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1721 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1722 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1723 | StringPiece method_name(dex_file.GetMethodName(method_id)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1724 | |
| 1725 | AbstractMethod* dst = NULL; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1726 | if (method_name == "<init>") { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1727 | dst = AllocConstructor(self); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1728 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1729 | dst = AllocMethod(self); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 1730 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1731 | DCHECK(dst->IsMethod()) << PrettyDescriptor(dst->GetClass()); |
| 1732 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1733 | const char* old_cause = self->StartAssertNoThreadSuspension("LoadMethod"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1734 | dst->SetDexMethodIndex(dex_method_idx); |
| 1735 | dst->SetDeclaringClass(klass.get()); |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1736 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1737 | if (method_name == "finalize") { |
| 1738 | // Create the prototype for a signature of "()V" |
| 1739 | const DexFile::StringId* void_string_id = dex_file.FindStringId("V"); |
| 1740 | if (void_string_id != NULL) { |
| 1741 | const DexFile::TypeId* void_type_id = |
| 1742 | dex_file.FindTypeId(dex_file.GetIndexForStringId(*void_string_id)); |
| 1743 | if (void_type_id != NULL) { |
| 1744 | std::vector<uint16_t> no_args; |
| 1745 | const DexFile::ProtoId* finalizer_proto = |
| 1746 | dex_file.FindProtoId(dex_file.GetIndexForTypeId(*void_type_id), no_args); |
| 1747 | if (finalizer_proto != NULL) { |
| 1748 | // We have the prototype in the dex file |
| 1749 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 1750 | klass->SetFinalizable(); |
| 1751 | } else { |
| 1752 | StringPiece klass_descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 1753 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 1754 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 1755 | // subclasses, so we exclude it here. |
| 1756 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 1757 | // empty. |
| 1758 | if (klass_descriptor != "Ljava/lang/Object;" && |
| 1759 | klass_descriptor != "Ljava/lang/Enum;") { |
| 1760 | klass->SetFinalizable(); |
| 1761 | } |
| 1762 | } |
| 1763 | } |
| 1764 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1765 | } |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 1766 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1767 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1768 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1769 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1770 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1771 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1772 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1773 | dst->SetDexCacheInitializedStaticStorage(klass->GetDexCache()->GetInitializedStaticStorage()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1774 | |
| 1775 | CHECK(dst->IsMethod()); |
| 1776 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1777 | self->EndAssertNoThreadSuspension(old_cause); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1778 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1779 | } |
| 1780 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1781 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1782 | Thread* self = Thread::Current(); |
| 1783 | SirtRef<DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1784 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1785 | } |
| 1786 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1787 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
| 1788 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1789 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1790 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1791 | } |
| 1792 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1793 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1794 | dex_lock_.AssertHeld(Thread::Current()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1795 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1796 | if (dex_caches_[i]->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1797 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1798 | } |
| 1799 | } |
| 1800 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1801 | } |
| 1802 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1803 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1804 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 1805 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1806 | } |
| 1807 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1808 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1809 | dex_lock_.AssertHeld(Thread::Current()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1810 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 1811 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1812 | dex_caches_.push_back(dex_cache.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1813 | dex_cache->SetDexFile(&dex_file); |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 1814 | Dirty(); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1815 | } |
| 1816 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1817 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1818 | Thread* self = Thread::Current(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1819 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1820 | MutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1821 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1822 | return; |
| 1823 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1824 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1825 | // Don't alloc while holding the lock, since allocation may need to |
| 1826 | // suspend all threads and another thread may need the dex_lock_ to |
| 1827 | // get to a suspend point. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1828 | SirtRef<DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1829 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1830 | MutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1831 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1832 | return; |
| 1833 | } |
| 1834 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1835 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1836 | } |
| 1837 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1838 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1839 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1840 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1841 | } |
| 1842 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1843 | DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1844 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 1845 | // Search assuming unique-ness of dex file. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1846 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1847 | DexCache* dex_cache = dex_caches_[i]; |
| 1848 | if (dex_cache->GetDexFile() == &dex_file) { |
| 1849 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1850 | } |
| 1851 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 1852 | // Search matching by location name. |
| 1853 | std::string location(dex_file.GetLocation()); |
| 1854 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1855 | DexCache* dex_cache = dex_caches_[i]; |
| 1856 | if (dex_cache->GetDexFile()->GetLocation() == location) { |
| 1857 | return dex_cache; |
| 1858 | } |
| 1859 | } |
| 1860 | // Failure, dump diagnostic and abort. |
| 1861 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1862 | DexCache* dex_cache = dex_caches_[i]; |
| 1863 | LOG(ERROR) << "Registered dex file " << i << " = " << dex_cache->GetDexFile()->GetLocation(); |
| 1864 | } |
| 1865 | LOG(FATAL) << "Failed to find DexCache for DexFile " << location; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1866 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1867 | } |
| 1868 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1869 | void ClassLinker::FixupDexCaches(AbstractMethod* resolution_method) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1870 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1871 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1872 | dex_caches_[i]->Fixup(resolution_method); |
| 1873 | } |
| 1874 | } |
| 1875 | |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1876 | Class* ClassLinker::InitializePrimitiveClass(Class* primitive_class, Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1877 | CHECK(primitive_class != NULL); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1878 | // Must hold lock on object when initializing. |
| 1879 | ObjectLock lock(Thread::Current(), primitive_class); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1880 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1881 | primitive_class->SetPrimitiveType(type); |
| 1882 | primitive_class->SetStatus(Class::kStatusInitialized); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1883 | Class* existing = InsertClass(Primitive::Descriptor(type), primitive_class, false); |
| 1884 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1885 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 1886 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1887 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1888 | // Create an array class (i.e. the class object for the array, not the |
| 1889 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 1890 | // "[Ljava/lang/String;". |
| 1891 | // |
| 1892 | // If "descriptor" refers to an array of primitives, look up the |
| 1893 | // primitive type's internally-generated class object. |
| 1894 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1895 | // "class_loader" is the class loader of the class that's referring to |
| 1896 | // us. It's used to ensure that we're looking for the element type in |
| 1897 | // the right context. It does NOT become the class loader for the |
| 1898 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1899 | // |
| 1900 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1901 | Class* ClassLinker::CreateArrayClass(const std::string& descriptor, ClassLoader* class_loader) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1902 | CHECK_EQ('[', descriptor[0]); |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1903 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1904 | // Identify the underlying component type |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1905 | Class* component_type = FindClass(descriptor.substr(1).c_str(), class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1906 | if (component_type == NULL) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1907 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1908 | return NULL; |
| 1909 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1910 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1911 | // See if the component type is already loaded. Array classes are |
| 1912 | // always associated with the class loader of their underlying |
| 1913 | // element type -- an array of Strings goes with the loader for |
| 1914 | // java/lang/String -- so we need to look for it there. (The |
| 1915 | // caller should have checked for the existence of the class |
| 1916 | // before calling here, but they did so with *their* class loader, |
| 1917 | // not the component type's loader.) |
| 1918 | // |
| 1919 | // If we find it, the caller adds "loader" to the class' initiating |
| 1920 | // loader list, which should prevent us from going through this again. |
| 1921 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1922 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1923 | // are the same, because our caller (FindClass) just did the |
| 1924 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 1925 | // because we effectively do this lookup again when we add the new |
| 1926 | // class to the hash table --- necessary because of possible races with |
| 1927 | // other threads.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1928 | if (class_loader != component_type->GetClassLoader()) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1929 | Class* new_class = LookupClass(descriptor.c_str(), component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1930 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1931 | return new_class; |
| 1932 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1933 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1934 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1935 | // Fill out the fields in the Class. |
| 1936 | // |
| 1937 | // It is possible to execute some methods against arrays, because |
| 1938 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 1939 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 1940 | // |
| 1941 | // Array classes are simple enough that we don't need to do a full |
| 1942 | // link step. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1943 | Thread* self = Thread::Current(); |
| 1944 | SirtRef<Class> new_class(self, NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1945 | if (!init_done_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1946 | // Classes that were hand created, ie not by FindSystemClass |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1947 | if (descriptor == "[Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1948 | new_class.reset(GetClassRoot(kClassArrayClass)); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1949 | } else if (descriptor == "[Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1950 | new_class.reset(GetClassRoot(kObjectArrayClass)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1951 | } else if (descriptor == class_roots_descriptors_[kJavaLangStringArrayClass]) { |
| 1952 | new_class.reset(GetClassRoot(kJavaLangStringArrayClass)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1953 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]) { |
| 1954 | new_class.reset(GetClassRoot(kJavaLangReflectAbstractMethodArrayClass)); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1955 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectFieldArrayClass]) { |
| 1956 | new_class.reset(GetClassRoot(kJavaLangReflectFieldArrayClass)); |
| 1957 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectMethodArrayClass]) { |
| 1958 | new_class.reset(GetClassRoot(kJavaLangReflectMethodArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1959 | } else if (descriptor == "[C") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1960 | new_class.reset(GetClassRoot(kCharArrayClass)); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1961 | } else if (descriptor == "[I") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1962 | new_class.reset(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1963 | } |
| 1964 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1965 | if (new_class.get() == NULL) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1966 | new_class.reset(AllocClass(self, sizeof(Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1967 | if (new_class.get() == NULL) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1968 | return NULL; |
| 1969 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1970 | new_class->SetComponentType(component_type); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1971 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1972 | ObjectLock lock(self, new_class.get()); // Must hold lock on object when initializing. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1973 | DCHECK(new_class->GetComponentType() != NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1974 | Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1975 | new_class->SetSuperClass(java_lang_Object); |
| 1976 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1977 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1978 | new_class->SetClassLoader(component_type->GetClassLoader()); |
| 1979 | new_class->SetStatus(Class::kStatusInitialized); |
| 1980 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1981 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1982 | |
| 1983 | |
| 1984 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 1985 | // interfaces. We need to set that up here, so that stuff like |
| 1986 | // "instanceof" works right. |
| 1987 | // |
| 1988 | // Note: The GC could run during the call to FindSystemClass, |
| 1989 | // so we need to make sure the class object is GC-valid while we're in |
| 1990 | // there. Do this by clearing the interface list so the GC will just |
| 1991 | // think that the entries are null. |
| 1992 | |
| 1993 | |
| 1994 | // Use the single, global copies of "interfaces" and "iftable" |
| 1995 | // (remember not to free them for arrays). |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1996 | CHECK(array_iftable_ != NULL); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1997 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1998 | |
| 1999 | // Inherit access flags from the component type. Arrays can't be |
| 2000 | // used as a superclass or interface, so we want to add "final" |
| 2001 | // and remove "interface". |
| 2002 | // |
| 2003 | // Don't inherit any non-standard flags (e.g., kAccFinal) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2004 | // from component_type. We assume that the array class does not |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2005 | // override finalize(). |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2006 | new_class->SetAccessFlags(((new_class->GetComponentType()->GetAccessFlags() & |
| 2007 | ~kAccInterface) | kAccFinal) & kAccJavaFlagsMask); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2008 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2009 | Class* existing = InsertClass(descriptor, new_class.get(), false); |
| 2010 | if (existing == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2011 | return new_class.get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2012 | } |
| 2013 | // Another thread must have loaded the class after we |
| 2014 | // started but before we finished. Abandon what we've |
| 2015 | // done. |
| 2016 | // |
| 2017 | // (Yes, this happens.) |
| 2018 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2019 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2020 | } |
| 2021 | |
| 2022 | Class* ClassLinker::FindPrimitiveClass(char type) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2023 | switch (Primitive::GetType(type)) { |
| 2024 | case Primitive::kPrimByte: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2025 | return GetClassRoot(kPrimitiveByte); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2026 | case Primitive::kPrimChar: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2027 | return GetClassRoot(kPrimitiveChar); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2028 | case Primitive::kPrimDouble: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2029 | return GetClassRoot(kPrimitiveDouble); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2030 | case Primitive::kPrimFloat: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2031 | return GetClassRoot(kPrimitiveFloat); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2032 | case Primitive::kPrimInt: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2033 | return GetClassRoot(kPrimitiveInt); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2034 | case Primitive::kPrimLong: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2035 | return GetClassRoot(kPrimitiveLong); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2036 | case Primitive::kPrimShort: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2037 | return GetClassRoot(kPrimitiveShort); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2038 | case Primitive::kPrimBoolean: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2039 | return GetClassRoot(kPrimitiveBoolean); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2040 | case Primitive::kPrimVoid: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2041 | return GetClassRoot(kPrimitiveVoid); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2042 | case Primitive::kPrimNot: |
| 2043 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 2044 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2045 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2046 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2047 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2048 | } |
| 2049 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2050 | Class* ClassLinker::InsertClass(const StringPiece& descriptor, Class* klass, bool image_class) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2051 | if (VLOG_IS_ON(class_linker)) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2052 | DexCache* dex_cache = klass->GetDexCache(); |
| 2053 | std::string source; |
| 2054 | if (dex_cache != NULL) { |
| 2055 | source += " from "; |
| 2056 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 2057 | } |
| 2058 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 2059 | } |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 2060 | size_t hash = StringPieceHash()(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2061 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2062 | Table& classes = image_class ? image_classes_ : classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2063 | Class* existing = LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, classes); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2064 | #ifndef NDEBUG |
| 2065 | // Check we don't have the class in the other table in error |
| 2066 | Table& other_classes = image_class ? classes_ : image_classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2067 | CHECK(LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, other_classes) == NULL); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2068 | #endif |
| 2069 | if (existing != NULL) { |
| 2070 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2071 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2072 | classes.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 2073 | Dirty(); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2074 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2075 | } |
| 2076 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2077 | bool ClassLinker::RemoveClass(const char* descriptor, const ClassLoader* class_loader) { |
| 2078 | size_t hash = Hash(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2079 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | e5448b5 | 2012-01-18 16:44:06 -0800 | [diff] [blame] | 2080 | typedef Table::iterator It; // TODO: C++0x auto |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2081 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2082 | ClassHelper kh; |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2083 | 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] | 2084 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2085 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2086 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2087 | classes_.erase(it); |
| 2088 | return true; |
| 2089 | } |
| 2090 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2091 | 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] | 2092 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2093 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2094 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2095 | image_classes_.erase(it); |
| 2096 | return true; |
| 2097 | } |
| 2098 | } |
| 2099 | return false; |
| 2100 | } |
| 2101 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2102 | Class* ClassLinker::LookupClass(const char* descriptor, const ClassLoader* class_loader) { |
| 2103 | size_t hash = Hash(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2104 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2105 | // TODO: determine if its better to search classes_ or image_classes_ first |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2106 | Class* klass = LookupClassLocked(descriptor, class_loader, hash, classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2107 | if (klass != NULL) { |
| 2108 | return klass; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2109 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2110 | return LookupClassLocked(descriptor, class_loader, hash, image_classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2111 | } |
| 2112 | |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2113 | Class* ClassLinker::LookupClassLocked(const char* descriptor, const ClassLoader* class_loader, |
| 2114 | size_t hash, const Table& classes) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2115 | ClassHelper kh(NULL, this); |
| 2116 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2117 | 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] | 2118 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2119 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2120 | if (strcmp(descriptor, kh.GetDescriptor()) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2121 | #ifndef NDEBUG |
| 2122 | for (++it; it != end && it->first == hash; ++it) { |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2123 | Class* klass2 = it->second; |
| 2124 | kh.ChangeClass(klass2); |
| 2125 | CHECK(!(strcmp(descriptor, kh.GetDescriptor()) == 0 && klass2->GetClassLoader() == class_loader)) |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2126 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2127 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2128 | } |
| 2129 | #endif |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2130 | return klass; |
| 2131 | } |
| 2132 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2133 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2134 | } |
| 2135 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2136 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<Class*>& classes) { |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2137 | classes.clear(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2138 | size_t hash = Hash(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2139 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2140 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2141 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2142 | ClassHelper kh(NULL, this); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2143 | 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] | 2144 | Class* klass = it->second; |
| 2145 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2146 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2147 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2148 | } |
| 2149 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2150 | 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] | 2151 | Class* klass = it->second; |
| 2152 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2153 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2154 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2155 | } |
| 2156 | } |
| 2157 | } |
| 2158 | |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2159 | void ClassLinker::VerifyClass(Class* klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2160 | // TODO: assert that the monitor on the Class is held |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2161 | Thread* self = Thread::Current(); |
| 2162 | ObjectLock lock(self, klass); |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2163 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2164 | // Don't attempt to re-verify if already sufficiently verified. |
| 2165 | if (klass->IsVerified() || |
| 2166 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2167 | return; |
| 2168 | } |
| 2169 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2170 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2171 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2172 | if (klass->IsErroneous()) { |
| 2173 | ThrowEarlierClassFailure(klass); |
| 2174 | return; |
| 2175 | } |
| 2176 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2177 | if (klass->GetStatus() == Class::kStatusResolved) { |
| 2178 | klass->SetStatus(Class::kStatusVerifying); |
| 2179 | } else { |
| 2180 | CHECK_EQ(klass->GetStatus(), Class::kStatusRetryVerificationAtRuntime) << PrettyClass(klass); |
| 2181 | CHECK(!Runtime::Current()->IsCompiler()); |
| 2182 | klass->SetStatus(Class::kStatusVerifyingAtRuntime); |
| 2183 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2184 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2185 | // Verify super class. |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2186 | Class* super = klass->GetSuperClass(); |
| 2187 | std::string error_msg; |
| 2188 | if (super != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2189 | // Acquire lock to prevent races on verifying the super class. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2190 | ObjectLock lock(self, super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2191 | |
| 2192 | if (!super->IsVerified() && !super->IsErroneous()) { |
| 2193 | Runtime::Current()->GetClassLinker()->VerifyClass(super); |
| 2194 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2195 | if (!super->IsCompileTimeVerified()) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2196 | error_msg = "Rejecting class "; |
| 2197 | error_msg += PrettyDescriptor(klass); |
| 2198 | error_msg += " that attempts to sub-class erroneous class "; |
| 2199 | error_msg += PrettyDescriptor(super); |
| 2200 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2201 | SirtRef<Throwable> cause(self, self->GetException()); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2202 | if (cause.get() != NULL) { |
| 2203 | self->ClearException(); |
| 2204 | } |
| 2205 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2206 | if (cause.get() != NULL) { |
| 2207 | self->GetException()->SetCause(cause.get()); |
| 2208 | } |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2209 | klass->SetStatus(Class::kStatusError); |
| 2210 | return; |
| 2211 | } |
| 2212 | } |
| 2213 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2214 | // Try to use verification information from the oat file, otherwise do runtime verification. |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2215 | const DexFile& dex_file = *klass->GetDexCache()->GetDexFile(); |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2216 | Class::Status oat_file_class_status(Class::kStatusNotReady); |
| 2217 | bool preverified = VerifyClassUsingOatFile(dex_file, klass, oat_file_class_status); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2218 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2219 | if (oat_file_class_status == Class::kStatusError) { |
| 2220 | LOG(WARNING) << "Skipping runtime verification of erroneous class " << PrettyDescriptor(klass) |
| 2221 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
| 2222 | error_msg = "Rejecting class "; |
| 2223 | error_msg += PrettyDescriptor(klass); |
| 2224 | error_msg += " because it failed compile-time verification"; |
| 2225 | Thread::Current()->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2226 | klass->SetStatus(Class::kStatusError); |
| 2227 | return; |
| 2228 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2229 | if (!preverified) { |
| 2230 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass, error_msg); |
| 2231 | } |
| 2232 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2233 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
| 2234 | LOG(WARNING) << "Soft verification failure in class " << PrettyDescriptor(klass) |
| 2235 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2236 | << " because: " << error_msg; |
| 2237 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2238 | self->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2239 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2240 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2241 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
| 2242 | klass->SetStatus(Class::kStatusVerified); |
| 2243 | } else { |
| 2244 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2245 | // Soft failures at compile time should be retried at runtime. Soft |
| 2246 | // failures at runtime will be handled by slow paths in the generated |
| 2247 | // code. Set status accordingly. |
| 2248 | if (Runtime::Current()->IsCompiler()) { |
| 2249 | klass->SetStatus(Class::kStatusRetryVerificationAtRuntime); |
| 2250 | } else { |
| 2251 | klass->SetStatus(Class::kStatusVerified); |
| 2252 | } |
| 2253 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2254 | } else { |
Ian Rogers | 09f6b56 | 2012-01-31 21:58:52 -0800 | [diff] [blame] | 2255 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2256 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2257 | << " because: " << error_msg; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2258 | self->AssertNoPendingException(); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2259 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 2260 | klass->SetStatus(Class::kStatusError); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2261 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2262 | } |
| 2263 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2264 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, Class* klass, |
| 2265 | Class::Status& oat_file_class_status) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2266 | if (!Runtime::Current()->IsStarted()) { |
| 2267 | return false; |
| 2268 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 2269 | if (Runtime::Current()->UseCompileTimeClassPath()) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2270 | return false; |
| 2271 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2272 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 2273 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2274 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2275 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2276 | const char* descriptor = ClassHelper(klass).GetDescriptor(); |
| 2277 | uint32_t class_def_index; |
| 2278 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2279 | CHECK(found) << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2280 | 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] | 2281 | CHECK(oat_class.get() != NULL) |
| 2282 | << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2283 | oat_file_class_status = oat_class->GetStatus(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2284 | if (oat_file_class_status == Class::kStatusVerified || |
| 2285 | oat_file_class_status == Class::kStatusInitialized) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2286 | return true; |
| 2287 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2288 | if (oat_file_class_status == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2289 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2290 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2291 | // class ... { |
| 2292 | // Foo x; |
| 2293 | // .... () { |
| 2294 | // if (...) { |
| 2295 | // v1 gets assigned a type of resolved class Foo |
| 2296 | // } else { |
| 2297 | // v1 gets assigned a type of unresolved class Bar |
| 2298 | // } |
| 2299 | // iput x = v1 |
| 2300 | // } } |
| 2301 | // when we merge v1 following the if-the-else it results in Conflict |
| 2302 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2303 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2304 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2305 | // at compile time). |
| 2306 | return false; |
| 2307 | } |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2308 | if (oat_file_class_status == Class::kStatusError) { |
| 2309 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2310 | // in the class. These errors are unrecoverable. |
| 2311 | return false; |
| 2312 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2313 | if (oat_file_class_status == Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2314 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2315 | // not loading the class. |
| 2316 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2317 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2318 | return false; |
| 2319 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2320 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2321 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
| 2322 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2323 | return false; |
| 2324 | } |
| 2325 | |
| 2326 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, Class* klass) { |
| 2327 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 2328 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 2329 | } |
| 2330 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 2331 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 2332 | } |
| 2333 | } |
| 2334 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2335 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, AbstractMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2336 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 2337 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 2338 | if (code_item == NULL) { |
| 2339 | return; // native or abstract method |
| 2340 | } |
| 2341 | if (code_item->tries_size_ == 0) { |
| 2342 | return; // nothing to process |
| 2343 | } |
| 2344 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 2345 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 2346 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 2347 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 2348 | CatchHandlerIterator iterator(handlers_ptr); |
| 2349 | for (; iterator.HasNext(); iterator.Next()) { |
| 2350 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 2351 | // unresolved exception types will be ignored by exception delivery |
| 2352 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
| 2353 | Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
| 2354 | if (exception_type == NULL) { |
| 2355 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2356 | Thread::Current()->ClearException(); |
| 2357 | } |
| 2358 | } |
| 2359 | } |
| 2360 | handlers_ptr = iterator.EndDataPointer(); |
| 2361 | } |
| 2362 | } |
| 2363 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2364 | static void CheckProxyConstructor(AbstractMethod* constructor); |
| 2365 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2366 | |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2367 | Class* ClassLinker::CreateProxyClass(String* name, ObjectArray<Class>* interfaces, |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2368 | ClassLoader* loader, ObjectArray<AbstractMethod>* methods, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2369 | ObjectArray<ObjectArray<Class> >* throws) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2370 | Thread* self = Thread::Current(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2371 | SirtRef<Class> klass(self, AllocClass(self, GetClassRoot(kJavaLangClass), |
| 2372 | sizeof(SynthesizedProxyClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2373 | CHECK(klass.get() != NULL); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2374 | DCHECK(klass->GetClass() != NULL); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2375 | klass->SetObjectSize(sizeof(Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2376 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2377 | klass->SetClassLoader(loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2378 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2379 | klass->SetName(name); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2380 | Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2381 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2382 | |
| 2383 | klass->SetStatus(Class::kStatusIdx); |
| 2384 | |
| 2385 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); |
| 2386 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2387 | // Instance fields are inherited, but we add a couple of static fields... |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2388 | klass->SetSFields(AllocFieldArray(self, 2)); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2389 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 2390 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2391 | SirtRef<Field> interfaces_sfield(self, AllocField(self)); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2392 | klass->SetStaticField(0, interfaces_sfield.get()); |
| 2393 | interfaces_sfield->SetDexFieldIndex(0); |
| 2394 | interfaces_sfield->SetDeclaringClass(klass.get()); |
| 2395 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 2396 | // 2. Create a static field 'throws' that holds exceptions thrown by our methods. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2397 | SirtRef<Field> throws_sfield(self, AllocField(self)); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2398 | klass->SetStaticField(1, throws_sfield.get()); |
| 2399 | throws_sfield->SetDexFieldIndex(1); |
| 2400 | throws_sfield->SetDeclaringClass(klass.get()); |
| 2401 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2402 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2403 | // Proxies have 1 direct method, the constructor |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2404 | klass->SetDirectMethods(AllocAbstractMethodArray(self, 1)); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2405 | klass->SetDirectMethod(0, CreateProxyConstructor(self, klass, proxy_class)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2406 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2407 | // Create virtual method using specified prototypes |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2408 | size_t num_virtual_methods = methods->GetLength(); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2409 | klass->SetVirtualMethods(AllocMethodArray(self, num_virtual_methods)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2410 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2411 | SirtRef<AbstractMethod> prototype(self, methods->Get(i)); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2412 | klass->SetVirtualMethod(i, CreateProxyMethod(self, klass, prototype)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2413 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2414 | |
| 2415 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
| 2416 | klass->SetStatus(Class::kStatusLoaded); // Class is now effectively in the loaded state |
| 2417 | DCHECK(!Thread::Current()->IsExceptionPending()); |
| 2418 | |
| 2419 | // Link the fields and virtual methods, creating vtable and iftables |
| 2420 | if (!LinkClass(klass, interfaces)) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2421 | klass->SetStatus(Class::kStatusError); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2422 | return NULL; |
| 2423 | } |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2424 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2425 | ObjectLock lock(self, klass.get()); // Must hold lock on object when initializing. |
Ian Rogers | 2fa6b2e | 2012-10-17 00:10:17 -0700 | [diff] [blame] | 2426 | interfaces_sfield->SetObject(klass.get(), interfaces); |
| 2427 | throws_sfield->SetObject(klass.get(), throws); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2428 | klass->SetStatus(Class::kStatusInitialized); |
| 2429 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2430 | |
| 2431 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 2432 | if (kIsDebugBuild) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2433 | CHECK(klass->GetIFields() == NULL); |
| 2434 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2435 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2436 | SirtRef<AbstractMethod> prototype(self, methods->Get(i)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2437 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2438 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2439 | |
| 2440 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
| 2441 | name->ToModifiedUtf8().c_str())); |
| 2442 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 2443 | |
| 2444 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
| 2445 | name->ToModifiedUtf8().c_str())); |
| 2446 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2447 | |
| 2448 | SynthesizedProxyClass* synth_proxy_class = down_cast<SynthesizedProxyClass*>(klass.get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2449 | CHECK_EQ(synth_proxy_class->GetInterfaces(), interfaces); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2450 | CHECK_EQ(synth_proxy_class->GetThrows(), throws); |
| 2451 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2452 | return klass.get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2453 | } |
| 2454 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2455 | std::string ClassLinker::GetDescriptorForProxy(const Class* proxy_class) { |
| 2456 | DCHECK(proxy_class->IsProxyClass()); |
| 2457 | String* name = proxy_class->GetName(); |
| 2458 | DCHECK(name != NULL); |
| 2459 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2460 | } |
| 2461 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2462 | AbstractMethod* ClassLinker::FindMethodForProxy(const Class* proxy_class, const AbstractMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2463 | DCHECK(proxy_class->IsProxyClass()); |
| 2464 | DCHECK(proxy_method->IsProxyMethod()); |
| 2465 | // Locate the dex cache of the original interface/Object |
| 2466 | DexCache* dex_cache = NULL; |
| 2467 | { |
| 2468 | ObjectArray<Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2469 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2470 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2471 | if (dex_caches_[i]->GetResolvedTypes() == resolved_types) { |
| 2472 | dex_cache = dex_caches_[i]; |
| 2473 | break; |
| 2474 | } |
| 2475 | } |
| 2476 | } |
| 2477 | CHECK(dex_cache != NULL); |
| 2478 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2479 | AbstractMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2480 | CHECK(resolved_method != NULL); |
| 2481 | return resolved_method; |
| 2482 | } |
| 2483 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2484 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2485 | AbstractMethod* ClassLinker::CreateProxyConstructor(Thread* self, SirtRef<Class>& klass, Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2486 | // Create constructor for Proxy that must initialize h |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2487 | ObjectArray<AbstractMethod>* proxy_direct_methods = proxy_class->GetDirectMethods(); |
Jesse Wilson | ecbce8f | 2011-10-21 19:57:36 -0400 | [diff] [blame] | 2488 | CHECK_EQ(proxy_direct_methods->GetLength(), 15); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2489 | AbstractMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2490 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2491 | // code_ too) |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2492 | AbstractMethod* constructor = down_cast<AbstractMethod*>(proxy_constructor->Clone(self)); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2493 | // Make this constructor public and fix the class to be our Proxy version |
| 2494 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2495 | constructor->SetDeclaringClass(klass.get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2496 | return constructor; |
| 2497 | } |
| 2498 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2499 | static void CheckProxyConstructor(AbstractMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2500 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2501 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2502 | MethodHelper mh(constructor); |
| 2503 | CHECK_STREQ(mh.GetName(), "<init>"); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 2504 | CHECK_EQ(mh.GetSignature(), std::string("(Ljava/lang/reflect/InvocationHandler;)V")); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2505 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2506 | } |
| 2507 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2508 | AbstractMethod* ClassLinker::CreateProxyMethod(Thread* self, SirtRef<Class>& klass, |
| 2509 | SirtRef<AbstractMethod>& prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2510 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 2511 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2512 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
| 2513 | prototype.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2514 | // 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] | 2515 | // as necessary |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2516 | AbstractMethod* method = down_cast<AbstractMethod*>(prototype->Clone(self)); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2517 | |
| 2518 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 2519 | // the intersection of throw exceptions as defined in Proxy |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2520 | method->SetDeclaringClass(klass.get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2521 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2522 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2523 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 2524 | // related parameters from this method. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2525 | AbstractMethod* refs_and_args = Runtime::Current()->GetCalleeSaveMethod(Runtime::kRefsAndArgs); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2526 | method->SetCoreSpillMask(refs_and_args->GetCoreSpillMask()); |
| 2527 | method->SetFpSpillMask(refs_and_args->GetFpSpillMask()); |
| 2528 | method->SetFrameSizeInBytes(refs_and_args->GetFrameSizeInBytes()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2529 | #if !defined(ART_USE_LLVM_COMPILER) |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2530 | method->SetCode(reinterpret_cast<void*>(art_proxy_invoke_handler)); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2531 | #else |
Logan Chien | 7a2a23a | 2012-06-06 11:01:00 +0800 | [diff] [blame] | 2532 | OatFile::OatMethod oat_method = GetOatMethodFor(prototype.get()); |
| 2533 | method->SetCode(oat_method.GetProxyStub()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2534 | #endif |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2535 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2536 | return method; |
| 2537 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2538 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2539 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2540 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2541 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2542 | CHECK(!prototype->IsFinal()); |
| 2543 | CHECK(method->IsFinal()); |
| 2544 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2545 | |
| 2546 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 2547 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 2548 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 2549 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 2550 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
| 2551 | CHECK_EQ(prototype->GetDexCacheInitializedStaticStorage(), |
| 2552 | method->GetDexCacheInitializedStaticStorage()); |
| 2553 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 2554 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2555 | MethodHelper mh(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2556 | MethodHelper mh2(prototype.get()); |
| 2557 | CHECK_STREQ(mh.GetName(), mh2.GetName()); |
| 2558 | CHECK_STREQ(mh.GetShorty(), mh2.GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2559 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2560 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2561 | } |
| 2562 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2563 | 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] | 2564 | CHECK(klass->IsResolved() || klass->IsErroneous()) |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2565 | << PrettyClass(klass) << ": state=" << klass->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2566 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2567 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2568 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2569 | AbstractMethod* clinit = NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2570 | { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2571 | // see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2572 | ObjectLock lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2573 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2574 | if (klass->GetStatus() == Class::kStatusInitialized) { |
| 2575 | return true; |
| 2576 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2577 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2578 | if (klass->IsErroneous()) { |
| 2579 | ThrowEarlierClassFailure(klass); |
| 2580 | return false; |
| 2581 | } |
| 2582 | |
jeffhao | ebe2e0f | 2012-06-06 15:19:40 -0700 | [diff] [blame] | 2583 | if (klass->GetStatus() == Class::kStatusResolved || |
| 2584 | klass->GetStatus() == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2585 | VerifyClass(klass); |
| 2586 | if (klass->GetStatus() != Class::kStatusVerified) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 2587 | if (klass->GetStatus() == Class::kStatusError) { |
| 2588 | CHECK(self->IsExceptionPending()); |
| 2589 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2590 | return false; |
| 2591 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2592 | } |
| 2593 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2594 | clinit = klass->FindDeclaredDirectMethod("<clinit>", "()V"); |
| 2595 | if (clinit != NULL && !can_run_clinit) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2596 | // 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] | 2597 | // don't bother going to kStatusInitializing. We return false so that |
| 2598 | // sub-classes don't believe this class is initialized. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2599 | // Opportunistically link non-static methods, TODO: don't initialize and dirty pages |
| 2600 | // in second pass. |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2601 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2602 | } |
| 2603 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2604 | // If the class is kStatusInitializing, either this thread is |
| 2605 | // initializing higher up the stack or another thread has beat us |
| 2606 | // to initializing and we need to wait. Either way, this |
| 2607 | // invocation of InitializeClass will not be responsible for |
| 2608 | // running <clinit> and will return. |
| 2609 | if (klass->GetStatus() == Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 2610 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2611 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2612 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2613 | return true; |
| 2614 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2615 | // No. That's fine. Wait for another thread to finish initializing. |
| 2616 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2617 | } |
| 2618 | |
| 2619 | if (!ValidateSuperClassDescriptors(klass)) { |
| 2620 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2621 | lock.NotifyAll(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2622 | return false; |
| 2623 | } |
| 2624 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2625 | DCHECK_EQ(klass->GetStatus(), Class::kStatusVerified) << PrettyClass(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2626 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2627 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2628 | klass->SetStatus(Class::kStatusInitializing); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2629 | } |
| 2630 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2631 | uint64_t t0 = NanoTime(); |
| 2632 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2633 | if (!InitializeSuperClass(klass, can_run_clinit, can_init_statics)) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2634 | // Super class initialization failed, this can be because we can't run |
| 2635 | // super-class class initializers in which case we'll be verified. |
| 2636 | // Otherwise this class is erroneous. |
| 2637 | if (!can_run_clinit) { |
| 2638 | CHECK(klass->IsVerified()); |
| 2639 | } else { |
| 2640 | CHECK(klass->IsErroneous()); |
| 2641 | } |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2642 | // Signal to any waiting threads that saw this class as initializing. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2643 | ObjectLock lock(self, klass); |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2644 | lock.NotifyAll(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2645 | return false; |
| 2646 | } |
| 2647 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2648 | bool has_static_field_initializers = InitializeStaticFields(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2649 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2650 | if (clinit != NULL) { |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 2651 | if (Runtime::Current()->IsStarted()) { |
| 2652 | clinit->Invoke(self, NULL, NULL, NULL); |
| 2653 | } else { |
| 2654 | art::interpreter::EnterInterpreterFromInvoke(self, clinit, NULL, NULL, NULL); |
| 2655 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2656 | } |
| 2657 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2658 | FixupStaticTrampolines(klass); |
| 2659 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2660 | uint64_t t1 = NanoTime(); |
| 2661 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2662 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2663 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2664 | ObjectLock lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2665 | |
| 2666 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2667 | WrapExceptionInInitializer(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2668 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2669 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2670 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2671 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 2672 | RuntimeStats* thread_stats = self->GetStats(); |
| 2673 | ++global_stats->class_init_count; |
| 2674 | ++thread_stats->class_init_count; |
| 2675 | global_stats->class_init_time_ns += (t1 - t0); |
| 2676 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2677 | // Set the class as initialized except if we can't initialize static fields and static field |
| 2678 | // initialization is necessary. |
| 2679 | if (!can_init_statics && has_static_field_initializers) { |
| 2680 | klass->SetStatus(Class::kStatusVerified); // Don't leave class in initializing state. |
| 2681 | success = false; |
| 2682 | } else { |
| 2683 | klass->SetStatus(Class::kStatusInitialized); |
| 2684 | } |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2685 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2686 | ClassHelper kh(klass); |
| 2687 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2688 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2689 | } |
| 2690 | lock.NotifyAll(); |
| 2691 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2692 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2693 | } |
| 2694 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2695 | bool ClassLinker::WaitForInitializeClass(Class* klass, Thread* self, ObjectLock& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2696 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2697 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2698 | self->AssertNoPendingException(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2699 | lock.Wait(); |
| 2700 | |
| 2701 | // When we wake up, repeat the test for init-in-progress. If |
| 2702 | // there's an exception pending (only possible if |
| 2703 | // "interruptShouldThrow" was set), bail out. |
| 2704 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2705 | WrapExceptionInInitializer(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2706 | klass->SetStatus(Class::kStatusError); |
| 2707 | return false; |
| 2708 | } |
| 2709 | // Spurious wakeup? Go back to waiting. |
| 2710 | if (klass->GetStatus() == Class::kStatusInitializing) { |
| 2711 | continue; |
| 2712 | } |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2713 | if (klass->GetStatus() == Class::kStatusVerified && Runtime::Current()->IsCompiler()) { |
| 2714 | // Compile time initialization failed. |
| 2715 | return false; |
| 2716 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2717 | if (klass->IsErroneous()) { |
| 2718 | // The caller wants an exception, but it was thrown in a |
| 2719 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 2720 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2721 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2722 | return false; |
| 2723 | } |
| 2724 | if (klass->IsInitialized()) { |
| 2725 | return true; |
| 2726 | } |
| 2727 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass) << " is " << klass->GetStatus(); |
| 2728 | } |
| 2729 | LOG(FATAL) << "Not Reached" << PrettyClass(klass); |
| 2730 | } |
| 2731 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2732 | bool ClassLinker::ValidateSuperClassDescriptors(const Class* klass) { |
| 2733 | if (klass->IsInterface()) { |
| 2734 | return true; |
| 2735 | } |
| 2736 | // begin with the methods local to the superclass |
| 2737 | if (klass->HasSuperClass() && |
| 2738 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
| 2739 | const Class* super = klass->GetSuperClass(); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2740 | for (int i = super->GetVTable()->GetLength() - 1; i >= 0; --i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2741 | const AbstractMethod* method = klass->GetVTable()->Get(i); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2742 | if (method != super->GetVTable()->Get(i) && |
| 2743 | !IsSameMethodSignatureInDifferentClassContexts(method, super, klass)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2744 | ThrowLinkageError("Class %s method %s resolves differently in superclass %s", |
| 2745 | PrettyDescriptor(klass).c_str(), PrettyMethod(method).c_str(), |
| 2746 | PrettyDescriptor(super).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2747 | return false; |
| 2748 | } |
| 2749 | } |
| 2750 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 2751 | IfTable* iftable = klass->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2752 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 2753 | Class* interface = iftable->GetInterface(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2754 | if (klass->GetClassLoader() != interface->GetClassLoader()) { |
| 2755 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 2756 | const AbstractMethod* method = iftable->GetMethodArray(i)->Get(j); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2757 | if (!IsSameMethodSignatureInDifferentClassContexts(method, interface, |
| 2758 | method->GetDeclaringClass())) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2759 | ThrowLinkageError("Class %s method %s resolves differently in interface %s", |
| 2760 | PrettyDescriptor(method->GetDeclaringClass()).c_str(), |
| 2761 | PrettyMethod(method).c_str(), |
| 2762 | PrettyDescriptor(interface).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2763 | return false; |
| 2764 | } |
| 2765 | } |
| 2766 | } |
| 2767 | } |
| 2768 | return true; |
| 2769 | } |
| 2770 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2771 | // Returns true if classes referenced by the signature of the method are the |
| 2772 | // same classes in klass1 as they are in klass2. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2773 | bool ClassLinker::IsSameMethodSignatureInDifferentClassContexts(const AbstractMethod* method, |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2774 | const Class* klass1, |
| 2775 | const Class* klass2) { |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2776 | if (klass1 == klass2) { |
| 2777 | return true; |
Brian Carlstrom | e10b697 | 2011-09-26 13:49:03 -0700 | [diff] [blame] | 2778 | } |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2779 | const DexFile& dex_file = *method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2780 | const DexFile::ProtoId& proto_id = |
| 2781 | dex_file.GetMethodPrototype(dex_file.GetMethodId(method->GetDexMethodIndex())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2782 | for (DexFileParameterIterator it(dex_file, proto_id); it.HasNext(); it.Next()) { |
| 2783 | const char* descriptor = it.GetDescriptor(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2784 | if (descriptor == NULL) { |
| 2785 | break; |
| 2786 | } |
| 2787 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 2788 | // Found a non-primitive type. |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2789 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2790 | return false; |
| 2791 | } |
| 2792 | } |
| 2793 | } |
| 2794 | // Check the return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2795 | const char* descriptor = dex_file.GetReturnTypeDescriptor(proto_id); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2796 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2797 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2798 | return false; |
| 2799 | } |
| 2800 | } |
| 2801 | return true; |
| 2802 | } |
| 2803 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2804 | // Returns true if the descriptor resolves to the same class in the context of klass1 and klass2. |
| 2805 | bool ClassLinker::IsSameDescriptorInDifferentClassContexts(const char* descriptor, |
| 2806 | const Class* klass1, |
| 2807 | const Class* klass2) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2808 | CHECK(descriptor != NULL); |
| 2809 | CHECK(klass1 != NULL); |
| 2810 | CHECK(klass2 != NULL); |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2811 | if (klass1 == klass2) { |
| 2812 | return true; |
| 2813 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2814 | Class* found1 = FindClass(descriptor, klass1->GetClassLoader()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2815 | if (found1 == NULL) { |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2816 | Thread::Current()->ClearException(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2817 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2818 | Class* found2 = FindClass(descriptor, klass2->GetClassLoader()); |
| 2819 | if (found2 == NULL) { |
| 2820 | Thread::Current()->ClearException(); |
| 2821 | } |
| 2822 | return found1 == found2; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2823 | } |
| 2824 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2825 | 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] | 2826 | CHECK(klass != NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2827 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 2828 | Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2829 | if (!super_class->IsInitialized()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2830 | CHECK(!super_class->IsInterface()); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2831 | // Must hold lock on object when initializing and setting status. |
| 2832 | ObjectLock lock(Thread::Current(), klass); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2833 | bool super_initialized = InitializeClass(super_class, can_run_clinit, can_init_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2834 | // TODO: check for a pending exception |
| 2835 | if (!super_initialized) { |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2836 | if (!can_run_clinit) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2837 | // Don't set status to error when we can't run <clinit>. |
| 2838 | CHECK_EQ(klass->GetStatus(), Class::kStatusInitializing) << PrettyClass(klass); |
| 2839 | klass->SetStatus(Class::kStatusVerified); |
| 2840 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2841 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2842 | klass->SetStatus(Class::kStatusError); |
| 2843 | klass->NotifyAll(); |
| 2844 | return false; |
| 2845 | } |
| 2846 | } |
| 2847 | } |
| 2848 | return true; |
| 2849 | } |
| 2850 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2851 | bool ClassLinker::EnsureInitialized(Class* c, bool can_run_clinit, bool can_init_fields) { |
Mathieu Chartier | 155dfe9 | 2012-10-09 14:24:49 -0700 | [diff] [blame] | 2852 | DCHECK(c != NULL); |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2853 | if (c->IsInitialized()) { |
| 2854 | return true; |
| 2855 | } |
| 2856 | |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2857 | Thread* self = Thread::Current(); |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 2858 | ScopedThreadStateChange tsc(self, kRunnable); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2859 | bool success = InitializeClass(c, can_run_clinit, can_init_fields); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2860 | if (!success) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2861 | CHECK(self->IsExceptionPending() || !can_run_clinit) << PrettyClass(c); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2862 | } |
| 2863 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2864 | } |
| 2865 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2866 | 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] | 2867 | Class* c, SafeMap<uint32_t, Field*>& field_map) { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 2868 | ClassLoader* cl = c->GetClassLoader(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2869 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2870 | ClassDataItemIterator it(dex_file, class_data); |
| 2871 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2872 | 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] | 2873 | } |
| 2874 | } |
| 2875 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2876 | bool ClassLinker::InitializeStaticFields(Class* klass) { |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2877 | size_t num_static_fields = klass->NumStaticFields(); |
| 2878 | if (num_static_fields == 0) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2879 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2880 | } |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2881 | DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2882 | // 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] | 2883 | if (dex_cache == NULL) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2884 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2885 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2886 | ClassHelper kh(klass); |
| 2887 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2888 | CHECK(dex_class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2889 | const DexFile& dex_file = kh.GetDexFile(); |
Brian Carlstrom | 88f3654 | 2012-10-16 23:24:21 -0700 | [diff] [blame] | 2890 | EncodedStaticFieldValueIterator it(dex_file, dex_cache, klass->GetClassLoader(), |
| 2891 | this, *dex_class_def); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2892 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2893 | if (it.HasNext()) { |
| 2894 | // 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] | 2895 | SafeMap<uint32_t, Field*> field_map; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2896 | ConstructFieldMap(dex_file, *dex_class_def, klass, field_map); |
| 2897 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2898 | it.ReadValueToField(field_map.Get(i)); |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2899 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2900 | return true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2901 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2902 | return false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2903 | } |
| 2904 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2905 | bool ClassLinker::LinkClass(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2906 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2907 | if (!LinkSuperClass(klass)) { |
| 2908 | return false; |
| 2909 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2910 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2911 | return false; |
| 2912 | } |
| 2913 | if (!LinkInstanceFields(klass)) { |
| 2914 | return false; |
| 2915 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2916 | if (!LinkStaticFields(klass)) { |
| 2917 | return false; |
| 2918 | } |
| 2919 | CreateReferenceInstanceOffsets(klass); |
| 2920 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2921 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
| 2922 | klass->SetStatus(Class::kStatusResolved); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2923 | return true; |
| 2924 | } |
| 2925 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2926 | bool ClassLinker::LoadSuperAndInterfaces(SirtRef<Class>& klass, const DexFile& dex_file) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2927 | CHECK_EQ(Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2928 | StringPiece descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 2929 | const DexFile::ClassDef* class_def = dex_file.FindClassDef(descriptor); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 2930 | CHECK(class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2931 | uint16_t super_class_idx = class_def->superclass_idx_; |
| 2932 | if (super_class_idx != DexFile::kDexNoIndex16) { |
| 2933 | Class* super_class = ResolveType(dex_file, super_class_idx, klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2934 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 2935 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2936 | return false; |
| 2937 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 2938 | // Verify |
| 2939 | if (!klass->CanAccess(super_class)) { |
| 2940 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2941 | "Class %s extended by class %s is inaccessible", |
| 2942 | PrettyDescriptor(super_class).c_str(), |
| 2943 | PrettyDescriptor(klass.get()).c_str()); |
| 2944 | return false; |
| 2945 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2946 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2947 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2948 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(*class_def); |
| 2949 | if (interfaces != NULL) { |
| 2950 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 2951 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
| 2952 | Class* interface = ResolveType(dex_file, idx, klass.get()); |
| 2953 | if (interface == NULL) { |
| 2954 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2955 | return false; |
| 2956 | } |
| 2957 | // Verify |
| 2958 | if (!klass->CanAccess(interface)) { |
| 2959 | // TODO: the RI seemed to ignore this in my testing. |
| 2960 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2961 | "Interface %s implemented by class %s is inaccessible", |
| 2962 | PrettyDescriptor(interface).c_str(), |
| 2963 | PrettyDescriptor(klass.get()).c_str()); |
| 2964 | return false; |
| 2965 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2966 | } |
| 2967 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2968 | // Mark the class as loaded. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2969 | klass->SetStatus(Class::kStatusLoaded); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2970 | return true; |
| 2971 | } |
| 2972 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2973 | bool ClassLinker::LinkSuperClass(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2974 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2975 | Class* super = klass->GetSuperClass(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2976 | if (klass.get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2977 | if (super != NULL) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2978 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/ClassFormatError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2979 | "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2980 | return false; |
| 2981 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2982 | return true; |
| 2983 | } |
| 2984 | if (super == NULL) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2985 | ThrowLinkageError("No superclass defined for class %s", PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2986 | return false; |
| 2987 | } |
| 2988 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2989 | if (super->IsFinal() || super->IsInterface()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2990 | Thread* self = Thread::Current(); |
| 2991 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2992 | "Superclass %s of %s is %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2993 | PrettyDescriptor(super).c_str(), |
| 2994 | PrettyDescriptor(klass.get()).c_str(), |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2995 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2996 | return false; |
| 2997 | } |
| 2998 | if (!klass->CanAccess(super)) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2999 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 3000 | "Superclass %s is inaccessible by %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3001 | PrettyDescriptor(super).c_str(), |
| 3002 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3003 | return false; |
| 3004 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 3005 | |
| 3006 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 3007 | if (super->IsFinalizable()) { |
| 3008 | klass->SetFinalizable(); |
| 3009 | } |
| 3010 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3011 | // Inherit reference flags (if any) from the superclass. |
| 3012 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 3013 | if (reference_flags != 0) { |
| 3014 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 3015 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3016 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 3017 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3018 | 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] | 3019 | PrettyDescriptor(klass.get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3020 | return false; |
| 3021 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3022 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3023 | #ifndef NDEBUG |
| 3024 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 3025 | while (super != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3026 | CHECK(super->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3027 | super = super->GetSuperClass(); |
| 3028 | } |
| 3029 | #endif |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3030 | return true; |
| 3031 | } |
| 3032 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3033 | // Populate the class vtable and itable. Compute return type indices. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3034 | bool ClassLinker::LinkMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3035 | if (klass->IsInterface()) { |
| 3036 | // No vtable. |
| 3037 | size_t count = klass->NumVirtualMethods(); |
| 3038 | if (!IsUint(16, count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 3039 | ThrowClassFormatError("Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3040 | return false; |
| 3041 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 3042 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3043 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3044 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 3045 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3046 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3047 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 3048 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3049 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3050 | } |
| 3051 | return true; |
| 3052 | } |
| 3053 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3054 | bool ClassLinker::LinkVirtualMethods(SirtRef<Class>& klass) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3055 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3056 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3057 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 3058 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3059 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3060 | // TODO: do not assign to the vtable field until it is fully constructed. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3061 | SirtRef<ObjectArray<AbstractMethod> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3062 | vtable(self, klass->GetSuperClass()->GetVTable()->CopyOf(self, max_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3063 | // See if any of our virtual methods override the superclass. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3064 | MethodHelper local_mh(NULL, this); |
| 3065 | MethodHelper super_mh(NULL, this); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3066 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3067 | AbstractMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3068 | local_mh.ChangeMethod(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3069 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3070 | for (; j < actual_count; ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3071 | AbstractMethod* super_method = vtable->Get(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3072 | super_mh.ChangeMethod(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3073 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
| 3074 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), super_method->GetAccessFlags())) { |
| 3075 | if (super_method->IsFinal()) { |
| 3076 | ThrowLinkageError("Method %s overrides final method in class %s", |
| 3077 | PrettyMethod(local_method).c_str(), |
| 3078 | super_mh.GetDeclaringClassDescriptor()); |
| 3079 | return false; |
| 3080 | } |
| 3081 | vtable->Set(j, local_method); |
| 3082 | local_method->SetMethodIndex(j); |
| 3083 | break; |
| 3084 | } else { |
| 3085 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 3086 | << " would have incorrectly overridden the package-private method in " |
| 3087 | << PrettyDescriptor(super_mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3088 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3089 | } |
| 3090 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3091 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3092 | // Not overriding, append. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3093 | vtable->Set(actual_count, local_method); |
| 3094 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3095 | actual_count += 1; |
| 3096 | } |
| 3097 | } |
| 3098 | if (!IsUint(16, actual_count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 3099 | ThrowClassFormatError("Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3100 | return false; |
| 3101 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3102 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3103 | CHECK_LE(actual_count, max_count); |
| 3104 | if (actual_count < max_count) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3105 | vtable.reset(vtable->CopyOf(self, actual_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3106 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3107 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3108 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3109 | CHECK(klass.get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3110 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3111 | if (!IsUint(16, num_virtual_methods)) { |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 3112 | ThrowClassFormatError("Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3113 | return false; |
| 3114 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3115 | SirtRef<ObjectArray<AbstractMethod> > |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3116 | vtable(self, AllocMethodArray(self, num_virtual_methods)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3117 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3118 | AbstractMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3119 | vtable->Set(i, virtual_method); |
| 3120 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3121 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3122 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3123 | } |
| 3124 | return true; |
| 3125 | } |
| 3126 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3127 | bool ClassLinker::LinkInterfaceMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3128 | size_t super_ifcount; |
| 3129 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3130 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3131 | } else { |
| 3132 | super_ifcount = 0; |
| 3133 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3134 | size_t ifcount = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3135 | ClassHelper kh(klass.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3136 | uint32_t num_interfaces = interfaces == NULL ? kh.NumDirectInterfaces() : interfaces->GetLength(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3137 | ifcount += num_interfaces; |
| 3138 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3139 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3140 | ifcount += interface->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3141 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3142 | if (ifcount == 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3143 | // Class implements no interfaces. |
| 3144 | DCHECK_EQ(klass->GetIfTableCount(), 0); |
| 3145 | DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3146 | return true; |
| 3147 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3148 | if (ifcount == super_ifcount) { |
| 3149 | // Class implements same interfaces as parent, are any of these not marker interfaces? |
| 3150 | bool has_non_marker_interface = false; |
| 3151 | IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
| 3152 | for (size_t i = 0; i < ifcount; ++i) { |
| 3153 | if (super_iftable->GetMethodArrayCount(i) > 0) { |
| 3154 | has_non_marker_interface = true; |
| 3155 | break; |
| 3156 | } |
| 3157 | } |
| 3158 | if (!has_non_marker_interface) { |
| 3159 | // Class just inherits marker interfaces from parent so recycle parent's iftable. |
| 3160 | klass->SetIfTable(super_iftable); |
| 3161 | return true; |
| 3162 | } |
| 3163 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3164 | Thread* self = Thread::Current(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3165 | SirtRef<IfTable> iftable(self, AllocIfTable(self, ifcount)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3166 | if (super_ifcount != 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3167 | IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3168 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3169 | Class* super_interface = super_iftable->GetInterface(i); |
| 3170 | iftable->SetInterface(i, super_interface); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3171 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3172 | } |
| 3173 | // Flatten the interface inheritance hierarchy. |
| 3174 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3175 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3176 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3177 | DCHECK(interface != NULL); |
| 3178 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3179 | ClassHelper ih(interface); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 3180 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3181 | "Class %s implements non-interface class %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3182 | PrettyDescriptor(klass.get()).c_str(), |
| 3183 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3184 | return false; |
| 3185 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3186 | // Check if interface is already in iftable |
| 3187 | bool duplicate = false; |
| 3188 | for (size_t j = 0; j < idx; j++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3189 | Class* existing_interface = iftable->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3190 | if (existing_interface == interface) { |
| 3191 | duplicate = true; |
| 3192 | break; |
| 3193 | } |
| 3194 | } |
| 3195 | if (!duplicate) { |
| 3196 | // Add this non-duplicate interface. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3197 | iftable->SetInterface(idx++, interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3198 | // Add this interface's non-duplicate super-interfaces. |
| 3199 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3200 | Class* super_interface = interface->GetIfTable()->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3201 | bool super_duplicate = false; |
| 3202 | for (size_t k = 0; k < idx; k++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3203 | Class* existing_interface = iftable->GetInterface(k); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3204 | if (existing_interface == super_interface) { |
| 3205 | super_duplicate = true; |
| 3206 | break; |
| 3207 | } |
| 3208 | } |
| 3209 | if (!super_duplicate) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3210 | iftable->SetInterface(idx++, super_interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3211 | } |
| 3212 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3213 | } |
| 3214 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3215 | // Shrink iftable in case duplicates were found |
| 3216 | if (idx < ifcount) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3217 | iftable.reset(down_cast<IfTable*>(iftable->CopyOf(self, idx * IfTable::kMax))); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3218 | ifcount = idx; |
| 3219 | } else { |
| 3220 | CHECK_EQ(idx, ifcount); |
| 3221 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3222 | klass->SetIfTable(iftable.get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3223 | |
| 3224 | // If we're an interface, we don't need the vtable pointers, so we're done. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3225 | if (klass->IsInterface()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3226 | return true; |
| 3227 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3228 | std::vector<AbstractMethod*> miranda_list; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3229 | MethodHelper vtable_mh(NULL, this); |
| 3230 | MethodHelper interface_mh(NULL, this); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3231 | for (size_t i = 0; i < ifcount; ++i) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3232 | Class* interface = iftable->GetInterface(i); |
| 3233 | size_t num_methods = interface->NumVirtualMethods(); |
| 3234 | if (num_methods > 0) { |
| 3235 | ObjectArray<AbstractMethod>* method_array = AllocMethodArray(self, num_methods); |
| 3236 | iftable->SetMethodArray(i, method_array); |
| 3237 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
| 3238 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
| 3239 | AbstractMethod* interface_method = interface->GetVirtualMethod(j); |
| 3240 | interface_mh.ChangeMethod(interface_method); |
| 3241 | int32_t k; |
| 3242 | // For each method listed in the interface's method list, find the |
| 3243 | // matching method in our class's method list. We want to favor the |
| 3244 | // subclass over the superclass, which just requires walking |
| 3245 | // back from the end of the vtable. (This only matters if the |
| 3246 | // superclass defines a private method and this class redefines |
| 3247 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 3248 | // those don't end up in the virtual method table, so it shouldn't |
| 3249 | // matter which direction we go. We walk it backward anyway.) |
| 3250 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
| 3251 | AbstractMethod* vtable_method = vtable->Get(k); |
| 3252 | vtable_mh.ChangeMethod(vtable_method); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3253 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3254 | if (!vtable_method->IsPublic()) { |
| 3255 | self->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 3256 | "Implementation not public: %s", |
| 3257 | PrettyMethod(vtable_method).c_str()); |
| 3258 | return false; |
| 3259 | } |
| 3260 | method_array->Set(j, vtable_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3261 | break; |
| 3262 | } |
| 3263 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3264 | if (k < 0) { |
| 3265 | SirtRef<AbstractMethod> miranda_method(self, NULL); |
| 3266 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
| 3267 | AbstractMethod* mir_method = miranda_list[mir]; |
| 3268 | vtable_mh.ChangeMethod(mir_method); |
| 3269 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
| 3270 | miranda_method.reset(miranda_list[mir]); |
| 3271 | break; |
| 3272 | } |
| 3273 | } |
| 3274 | if (miranda_method.get() == NULL) { |
| 3275 | // point the interface table at a phantom slot |
| 3276 | miranda_method.reset(down_cast<AbstractMethod*>(interface_method->Clone(self))); |
| 3277 | miranda_list.push_back(miranda_method.get()); |
| 3278 | } |
| 3279 | method_array->Set(j, miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3280 | } |
| 3281 | } |
| 3282 | } |
| 3283 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3284 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3285 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3286 | int new_method_count = old_method_count + miranda_list.size(); |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 3287 | klass->SetVirtualMethods((old_method_count == 0) |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3288 | ? AllocMethodArray(self, new_method_count) |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3289 | : klass->GetVirtualMethods()->CopyOf(self, new_method_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3290 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3291 | SirtRef<ObjectArray<AbstractMethod> > vtable(self, klass->GetVTableDuringLinking()); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3292 | CHECK(vtable.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3293 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3294 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3295 | vtable.reset(vtable->CopyOf(self, new_vtable_count)); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3296 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3297 | AbstractMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3298 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 3299 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 3300 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 3301 | klass->SetVirtualMethod(old_method_count + i, method); |
| 3302 | vtable->Set(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3303 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3304 | // 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] | 3305 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3306 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3307 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3308 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3309 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 3310 | CHECK(vtable->Get(i) != NULL); |
| 3311 | } |
| 3312 | |
| 3313 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 3314 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3315 | return true; |
| 3316 | } |
| 3317 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3318 | bool ClassLinker::LinkInstanceFields(SirtRef<Class>& klass) { |
| 3319 | CHECK(klass.get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3320 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3321 | } |
| 3322 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3323 | bool ClassLinker::LinkStaticFields(SirtRef<Class>& klass) { |
| 3324 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3325 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3326 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3327 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3328 | return success; |
| 3329 | } |
| 3330 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3331 | struct LinkFieldsComparator { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3332 | explicit LinkFieldsComparator(FieldHelper* fh) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3333 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3334 | : fh_(fh) {} |
| 3335 | // No thread safety analysis as will be called from STL. Checked lock held in constructor. |
| 3336 | bool operator()(const Field* field1, const Field* field2) NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3337 | // First come reference fields, then 64-bit, and finally 32-bit |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3338 | fh_->ChangeField(field1); |
| 3339 | Primitive::Type type1 = fh_->GetTypeAsPrimitiveType(); |
| 3340 | fh_->ChangeField(field2); |
| 3341 | Primitive::Type type2 = fh_->GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3342 | bool isPrimitive1 = type1 != Primitive::kPrimNot; |
| 3343 | bool isPrimitive2 = type2 != Primitive::kPrimNot; |
| 3344 | bool is64bit1 = isPrimitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 3345 | bool is64bit2 = isPrimitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3346 | int order1 = (!isPrimitive1 ? 0 : (is64bit1 ? 1 : 2)); |
| 3347 | int order2 = (!isPrimitive2 ? 0 : (is64bit2 ? 1 : 2)); |
| 3348 | if (order1 != order2) { |
| 3349 | return order1 < order2; |
| 3350 | } |
| 3351 | |
| 3352 | // same basic group? then sort by string. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3353 | fh_->ChangeField(field1); |
| 3354 | StringPiece name1(fh_->GetName()); |
| 3355 | fh_->ChangeField(field2); |
| 3356 | StringPiece name2(fh_->GetName()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3357 | return name1 < name2; |
| 3358 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3359 | |
| 3360 | FieldHelper* fh_; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3361 | }; |
| 3362 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3363 | bool ClassLinker::LinkFields(SirtRef<Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3364 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3365 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3366 | |
| 3367 | ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3368 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3369 | |
| 3370 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 3371 | size_t size; |
| 3372 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3373 | if (is_static) { |
| 3374 | size = klass->GetClassSize(); |
| 3375 | field_offset = Class::FieldsOffset(); |
| 3376 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3377 | Class* super_class = klass->GetSuperClass(); |
| 3378 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3379 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3380 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3381 | } |
| 3382 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3383 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3384 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3385 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3386 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3387 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3388 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3389 | std::deque<Field*> grouped_and_sorted_fields; |
| 3390 | for (size_t i = 0; i < num_fields; i++) { |
| 3391 | grouped_and_sorted_fields.push_back(fields->Get(i)); |
| 3392 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3393 | FieldHelper fh(NULL, this); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3394 | std::sort(grouped_and_sorted_fields.begin(), |
| 3395 | grouped_and_sorted_fields.end(), |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3396 | LinkFieldsComparator(&fh)); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3397 | |
| 3398 | // References should be at the front. |
| 3399 | size_t current_field = 0; |
| 3400 | size_t num_reference_fields = 0; |
| 3401 | for (; current_field < num_fields; current_field++) { |
| 3402 | Field* field = grouped_and_sorted_fields.front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3403 | fh.ChangeField(field); |
| 3404 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3405 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3406 | if (isPrimitive) { |
| 3407 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3408 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3409 | grouped_and_sorted_fields.pop_front(); |
| 3410 | num_reference_fields++; |
| 3411 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3412 | field->SetOffset(field_offset); |
| 3413 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3414 | } |
| 3415 | |
| 3416 | // Now we want to pack all of the double-wide fields together. If |
| 3417 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 3418 | // 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] | 3419 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3420 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
| 3421 | Field* field = grouped_and_sorted_fields[i]; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3422 | fh.ChangeField(field); |
| 3423 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3424 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 3425 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3426 | continue; |
| 3427 | } |
| 3428 | fields->Set(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3429 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3430 | // drop the consumed field |
| 3431 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 3432 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3433 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3434 | // whether we found a 32-bit field for padding or not, we advance |
| 3435 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3436 | } |
| 3437 | |
| 3438 | // Alignment is good, shuffle any double-wide fields forward, and |
| 3439 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3440 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3441 | while (!grouped_and_sorted_fields.empty()) { |
| 3442 | Field* field = grouped_and_sorted_fields.front(); |
| 3443 | grouped_and_sorted_fields.pop_front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3444 | fh.ChangeField(field); |
| 3445 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3446 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3447 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3448 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3449 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3450 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3451 | ? sizeof(uint64_t) |
| 3452 | : sizeof(uint32_t))); |
| 3453 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3454 | } |
| 3455 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3456 | // We lie to the GC about the java.lang.ref.Reference.referent field, so it doesn't scan it. |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 3457 | if (!is_static && |
| 3458 | StringPiece(ClassHelper(klass.get(), this).GetDescriptor()) == "Ljava/lang/ref/Reference;") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3459 | // We know there are no non-reference fields in the Reference classes, and we know |
| 3460 | // that 'referent' is alphabetically last, so this is easy... |
| 3461 | CHECK_EQ(num_reference_fields, num_fields); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3462 | fh.ChangeField(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 3463 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3464 | --num_reference_fields; |
| 3465 | } |
| 3466 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3467 | #ifndef NDEBUG |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3468 | // Make sure that all reference fields appear before |
| 3469 | // non-reference fields, and all double-wide fields are aligned. |
| 3470 | bool seen_non_ref = false; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3471 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3472 | Field* field = fields->Get(i); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3473 | if (false) { // enable to debug field layout |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3474 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3475 | << " class=" << PrettyClass(klass.get()) |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3476 | << " field=" << PrettyField(field) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3477 | << " offset=" << field->GetField32(MemberOffset(Field::OffsetOffset()), false); |
| 3478 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3479 | fh.ChangeField(field); |
| 3480 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3481 | bool is_primitive = type != Primitive::kPrimNot; |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 3482 | if (StringPiece(ClassHelper(klass.get(), this).GetDescriptor()) == "Ljava/lang/ref/Reference;" && |
| 3483 | StringPiece(fh.GetName()) == "referent") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3484 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 3485 | } |
| 3486 | if (is_primitive) { |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3487 | if (!seen_non_ref) { |
| 3488 | seen_non_ref = true; |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3489 | DCHECK_EQ(num_reference_fields, i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3490 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3491 | } else { |
| 3492 | DCHECK(!seen_non_ref); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3493 | } |
| 3494 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3495 | if (!seen_non_ref) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3496 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3497 | } |
| 3498 | #endif |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3499 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3500 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3501 | if (is_static) { |
| 3502 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 3503 | klass->SetClassSize(size); |
| 3504 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3505 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3506 | if (!klass->IsVariableSize()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3507 | klass->SetObjectSize(size); |
| 3508 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3509 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3510 | return true; |
| 3511 | } |
| 3512 | |
| 3513 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 3514 | // list. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3515 | void ClassLinker::CreateReferenceInstanceOffsets(SirtRef<Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3516 | uint32_t reference_offsets = 0; |
| 3517 | Class* super_class = klass->GetSuperClass(); |
| 3518 | if (super_class != NULL) { |
| 3519 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3520 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3521 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 3522 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3523 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3524 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3525 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3526 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3527 | } |
| 3528 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3529 | void ClassLinker::CreateReferenceStaticOffsets(SirtRef<Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3530 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3531 | } |
| 3532 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3533 | void ClassLinker::CreateReferenceOffsets(SirtRef<Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3534 | uint32_t reference_offsets) { |
| 3535 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3536 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 3537 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3538 | const ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3539 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3540 | // All of the fields that contain object references are guaranteed |
| 3541 | // to be at the beginning of the fields list. |
| 3542 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 3543 | // Note that byte_offset is the offset from the beginning of |
| 3544 | // object, not the offset into instance data |
| 3545 | const Field* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3546 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3547 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 3548 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 3549 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3550 | CHECK_NE(new_bit, 0U); |
| 3551 | reference_offsets |= new_bit; |
| 3552 | } else { |
| 3553 | reference_offsets = CLASS_WALK_SUPER; |
| 3554 | break; |
| 3555 | } |
| 3556 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3557 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3558 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3559 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3560 | } else { |
| 3561 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3562 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3563 | } |
| 3564 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3565 | String* ClassLinker::ResolveString(const DexFile& dex_file, |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 3566 | uint32_t string_idx, DexCache* dex_cache) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3567 | DCHECK(dex_cache != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3568 | String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3569 | if (resolved != NULL) { |
| 3570 | return resolved; |
| 3571 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3572 | const DexFile::StringId& string_id = dex_file.GetStringId(string_idx); |
| 3573 | int32_t utf16_length = dex_file.GetStringLength(string_id); |
| 3574 | const char* utf8_data = dex_file.GetStringData(string_id); |
Brian Carlstrom | 928bf02 | 2011-10-11 02:48:14 -0700 | [diff] [blame] | 3575 | String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3576 | dex_cache->SetResolvedString(string_idx, string); |
| 3577 | return string; |
| 3578 | } |
| 3579 | |
| 3580 | Class* ClassLinker::ResolveType(const DexFile& dex_file, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3581 | uint16_t type_idx, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3582 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3583 | ClassLoader* class_loader) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3584 | DCHECK(dex_cache != NULL); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3585 | Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3586 | if (resolved == NULL) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3587 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 3588 | resolved = FindClass(descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3589 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 3590 | // TODO: we used to throw here if resolved's class loader was not the |
| 3591 | // boot class loader. This was to permit different classes with the |
| 3592 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3593 | dex_cache->SetResolvedType(type_idx, resolved); |
| 3594 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 3595 | CHECK(Thread::Current()->IsExceptionPending()) |
| 3596 | << "Expected pending exception for failed resolution of: " << descriptor; |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3597 | // Convert a ClassNotFoundException to a NoClassDefFoundError |
| 3598 | if (Thread::Current()->GetException()->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
| 3599 | Thread::Current()->ClearException(); |
| 3600 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
| 3601 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3602 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3603 | } |
| 3604 | return resolved; |
| 3605 | } |
| 3606 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3607 | AbstractMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 3608 | uint32_t method_idx, |
| 3609 | DexCache* dex_cache, |
| 3610 | ClassLoader* class_loader, |
| 3611 | const AbstractMethod* referrer, |
| 3612 | InvokeType type) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3613 | DCHECK(dex_cache != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3614 | // Check for hit in the dex cache. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3615 | AbstractMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3616 | if (resolved != NULL) { |
| 3617 | return resolved; |
| 3618 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3619 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3620 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 3621 | Class* klass = ResolveType(dex_file, method_id.class_idx_, dex_cache, class_loader); |
| 3622 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 3623 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3624 | return NULL; |
| 3625 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3626 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 3627 | // caches/files. |
| 3628 | switch (type) { |
| 3629 | case kDirect: // Fall-through. |
| 3630 | case kStatic: |
| 3631 | resolved = klass->FindDirectMethod(dex_cache, method_idx); |
| 3632 | break; |
| 3633 | case kInterface: |
| 3634 | resolved = klass->FindInterfaceMethod(dex_cache, method_idx); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 3635 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3636 | break; |
| 3637 | case kSuper: // Fall-through. |
| 3638 | case kVirtual: |
| 3639 | resolved = klass->FindVirtualMethod(dex_cache, method_idx); |
| 3640 | break; |
| 3641 | default: |
| 3642 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3643 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3644 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3645 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3646 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3647 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3648 | switch (type) { |
| 3649 | case kDirect: // Fall-through. |
| 3650 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3651 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3652 | break; |
| 3653 | case kInterface: |
| 3654 | resolved = klass->FindInterfaceMethod(name, signature); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 3655 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3656 | break; |
| 3657 | case kSuper: // Fall-through. |
| 3658 | case kVirtual: |
| 3659 | resolved = klass->FindVirtualMethod(name, signature); |
| 3660 | break; |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3661 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3662 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3663 | if (resolved != NULL) { |
| 3664 | // We found a method, check for incompatible class changes. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3665 | if (resolved->CheckIncompatibleClassChange(type)) { |
| 3666 | resolved = NULL; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3667 | } |
| 3668 | } |
| 3669 | if (resolved != NULL) { |
| 3670 | // Be a good citizen and update the dex cache to speed subsequent calls. |
| 3671 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 3672 | return resolved; |
| 3673 | } else { |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3674 | // We failed to find the method which means either an access error, an incompatible class |
| 3675 | // 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] | 3676 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3677 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
| 3678 | switch (type) { |
| 3679 | case kDirect: |
| 3680 | case kStatic: |
| 3681 | resolved = klass->FindVirtualMethod(name, signature); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3682 | break; |
| 3683 | case kInterface: |
| 3684 | case kVirtual: |
| 3685 | case kSuper: |
| 3686 | resolved = klass->FindDirectMethod(name, signature); |
| 3687 | break; |
| 3688 | } |
| 3689 | |
| 3690 | // If we found something, check that it can be accessed by the referrer. |
| 3691 | if (resolved != NULL && referrer != NULL) { |
| 3692 | Class* methods_class = resolved->GetDeclaringClass(); |
| 3693 | Class* referring_class = referrer->GetDeclaringClass(); |
| 3694 | if (!referring_class->CanAccess(methods_class)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3695 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
| 3696 | referrer, resolved, type); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3697 | return NULL; |
| 3698 | } else if (!referring_class->CanAccessMember(methods_class, |
| 3699 | resolved->GetAccessFlags())) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 3700 | ThrowIllegalAccessErrorMethod(referring_class, resolved); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 3701 | return NULL; |
| 3702 | } |
| 3703 | } |
| 3704 | |
| 3705 | // Otherwise, throw an IncompatibleClassChangeError if we found something, and check interface |
| 3706 | // methods and throw if we find the method there. If we find nothing, throw a NoSuchMethodError. |
| 3707 | switch (type) { |
| 3708 | case kDirect: |
| 3709 | case kStatic: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3710 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3711 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3712 | } else { |
| 3713 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3714 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3715 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3716 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3717 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3718 | } |
| 3719 | } |
| 3720 | break; |
| 3721 | case kInterface: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3722 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3723 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3724 | } else { |
| 3725 | resolved = klass->FindVirtualMethod(name, signature); |
| 3726 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3727 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3728 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3729 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3730 | } |
| 3731 | } |
| 3732 | break; |
| 3733 | case kSuper: |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3734 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3735 | break; |
| 3736 | case kVirtual: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3737 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3738 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3739 | } else { |
| 3740 | resolved = klass->FindInterfaceMethod(name, signature); |
| 3741 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3742 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3743 | } else { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 3744 | ThrowNoSuchMethodError(type, klass, name, signature, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3745 | } |
| 3746 | } |
| 3747 | break; |
| 3748 | } |
| 3749 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3750 | return NULL; |
| 3751 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3752 | } |
| 3753 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3754 | Field* ClassLinker::ResolveField(const DexFile& dex_file, |
| 3755 | uint32_t field_idx, |
| 3756 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3757 | ClassLoader* class_loader, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3758 | bool is_static) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3759 | DCHECK(dex_cache != NULL); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3760 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3761 | if (resolved != NULL) { |
| 3762 | return resolved; |
| 3763 | } |
| 3764 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3765 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3766 | if (klass == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 3767 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3768 | return NULL; |
| 3769 | } |
| 3770 | |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3771 | if (is_static) { |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3772 | resolved = klass->FindStaticField(dex_cache, field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3773 | } else { |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3774 | resolved = klass->FindInstanceField(dex_cache, field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3775 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3776 | |
| 3777 | if (resolved == NULL) { |
| 3778 | const char* name = dex_file.GetFieldName(field_id); |
| 3779 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 3780 | if (is_static) { |
| 3781 | resolved = klass->FindStaticField(name, type); |
| 3782 | } else { |
| 3783 | resolved = klass->FindInstanceField(name, type); |
| 3784 | } |
| 3785 | if (resolved == NULL) { |
| 3786 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass, type, name); |
| 3787 | return NULL; |
| 3788 | } |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3789 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3790 | dex_cache->SetResolvedField(field_idx, resolved); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3791 | return resolved; |
| 3792 | } |
| 3793 | |
| 3794 | Field* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
| 3795 | uint32_t field_idx, |
| 3796 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3797 | ClassLoader* class_loader) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3798 | DCHECK(dex_cache != NULL); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3799 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3800 | if (resolved != NULL) { |
| 3801 | return resolved; |
| 3802 | } |
| 3803 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3804 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3805 | if (klass == NULL) { |
| 3806 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3807 | return NULL; |
| 3808 | } |
| 3809 | |
| 3810 | const char* name = dex_file.GetFieldName(field_id); |
| 3811 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 3812 | resolved = klass->FindField(name, type); |
| 3813 | if (resolved != NULL) { |
| 3814 | dex_cache->SetResolvedField(field_idx, resolved); |
| 3815 | } else { |
| 3816 | ThrowNoSuchFieldError("", klass, type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3817 | } |
| 3818 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 3819 | } |
| 3820 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3821 | 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] | 3822 | Class* declaring_class = referrer->GetDeclaringClass(); |
| 3823 | DexCache* dex_cache = declaring_class->GetDexCache(); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3824 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 3825 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3826 | return dex_file.GetMethodShorty(method_id, length); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 3827 | } |
| 3828 | |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3829 | void ClassLinker::DumpAllClasses(int flags) const { |
| 3830 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 3831 | // lock held, because it might need to resolve a field's type, which would try to take the lock. |
| 3832 | std::vector<Class*> all_classes; |
| 3833 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3834 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3835 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 3836 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 3837 | all_classes.push_back(it->second); |
| 3838 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3839 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 3840 | all_classes.push_back(it->second); |
| 3841 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3842 | } |
| 3843 | |
| 3844 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 3845 | all_classes[i]->DumpClass(std::cerr, flags); |
| 3846 | } |
| 3847 | } |
| 3848 | |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 3849 | void ClassLinker::DumpForSigQuit(std::ostream& os) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3850 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 3851 | os << "Loaded classes: " << image_classes_.size() << " image classes; " |
| 3852 | << classes_.size() << " allocated classes\n"; |
| 3853 | } |
| 3854 | |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3855 | size_t ClassLinker::NumLoadedClasses() const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3856 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3857 | return classes_.size() + image_classes_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3858 | } |
| 3859 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3860 | pid_t ClassLinker::GetClassesLockOwner() { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3861 | return Locks::classlinker_classes_lock_->GetExclusiveOwnerTid(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3862 | } |
| 3863 | |
| 3864 | pid_t ClassLinker::GetDexLockOwner() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3865 | return dex_lock_.GetExclusiveOwnerTid(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 3866 | } |
| 3867 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3868 | void ClassLinker::SetClassRoot(ClassRoot class_root, Class* klass) { |
| 3869 | DCHECK(!init_done_); |
| 3870 | |
| 3871 | DCHECK(klass != NULL); |
| 3872 | DCHECK(klass->GetClassLoader() == NULL); |
| 3873 | |
| 3874 | DCHECK(class_roots_ != NULL); |
| 3875 | DCHECK(class_roots_->Get(class_root) == NULL); |
| 3876 | class_roots_->Set(class_root, klass); |
| 3877 | } |
| 3878 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3879 | } // namespace art |