Elliott Hughes | 2faa5f1 | 2012-01-30 14:42:07 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 16 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 17 | #include "class_linker.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 18 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 19 | #include <fcntl.h> |
| 20 | #include <sys/file.h> |
| 21 | #include <sys/stat.h> |
Brian Carlstrom | dbf05b7 | 2011-12-15 00:55:24 -0800 | [diff] [blame] | 22 | #include <sys/types.h> |
| 23 | #include <sys/wait.h> |
| 24 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 25 | #include <deque> |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 26 | #include <string> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 27 | #include <utility> |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 28 | #include <vector> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 29 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 30 | #include "casts.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 31 | #include "class_loader.h" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 32 | #include "debugger.h" |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 33 | #include "dex_cache.h" |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 34 | #include "dex_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 35 | #include "heap.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 36 | #include "intern_table.h" |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 37 | #include "interpreter/interpreter.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 38 | #include "leb128.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 39 | #include "logging.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 40 | #include "oat_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 41 | #include "object.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 42 | #include "object_utils.h" |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 43 | #include "os.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 44 | #include "runtime.h" |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 45 | #include "runtime_support.h" |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 46 | #if defined(ART_USE_LLVM_COMPILER) |
| 47 | #include "compiler_llvm/runtime_support_llvm.h" |
| 48 | #endif |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 49 | #include "ScopedLocalRef.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 50 | #include "scoped_thread_state_change.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 51 | #include "sirt_ref.h" |
Mathieu Chartier | 7469ebf | 2012-09-24 16:28:36 -0700 | [diff] [blame] | 52 | #include "gc/space.h" |
| 53 | #include "gc/space_bitmap.h" |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 54 | #include "stack_indirect_reference_table.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 55 | #include "stl_util.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 56 | #include "thread.h" |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 57 | #include "UniquePtr.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 58 | #include "utils.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 59 | #include "well_known_classes.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 60 | |
| 61 | namespace art { |
| 62 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 63 | static void ThrowNoClassDefFoundError(const char* fmt, ...) |
| 64 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 65 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 66 | static void ThrowNoClassDefFoundError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 67 | va_list args; |
| 68 | va_start(args, fmt); |
| 69 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NoClassDefFoundError;", fmt, args); |
| 70 | va_end(args); |
| 71 | } |
| 72 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 73 | static void ThrowClassFormatError(const char* fmt, ...) |
| 74 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 75 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 76 | static void ThrowClassFormatError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 77 | va_list args; |
| 78 | va_start(args, fmt); |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 79 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/ClassFormatError;", fmt, args); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 80 | va_end(args); |
| 81 | } |
| 82 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 83 | static void ThrowLinkageError(const char* fmt, ...) |
| 84 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 85 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 86 | static void ThrowLinkageError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 87 | va_list args; |
| 88 | va_start(args, fmt); |
| 89 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/LinkageError;", fmt, args); |
| 90 | va_end(args); |
| 91 | } |
| 92 | |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 93 | static void ThrowNoSuchFieldError(const StringPiece& scope, Class* c, const StringPiece& type, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 94 | const StringPiece& name) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 95 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 96 | ClassHelper kh(c); |
| 97 | std::ostringstream msg; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 98 | msg << "No " << scope << "field " << name << " of type " << type |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 99 | << " in class " << kh.GetDescriptor() << " or its superclasses"; |
| 100 | std::string location(kh.GetLocation()); |
| 101 | if (!location.empty()) { |
| 102 | msg << " (defined in " << location << ")"; |
| 103 | } |
| 104 | Thread::Current()->ThrowNewException("Ljava/lang/NoSuchFieldError;", msg.str().c_str()); |
| 105 | } |
| 106 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 107 | static void ThrowNullPointerException(const char* fmt, ...) |
| 108 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 109 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 110 | static void ThrowNullPointerException(const char* fmt, ...) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 111 | va_list args; |
| 112 | va_start(args, fmt); |
| 113 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NullPointerException;", fmt, args); |
| 114 | va_end(args); |
| 115 | } |
| 116 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 117 | static void ThrowEarlierClassFailure(Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 118 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 119 | // The class failed to initialize on a previous attempt, so we want to throw |
| 120 | // a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 121 | // failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 122 | // the previous error. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 123 | if (!Runtime::Current()->IsCompiler()) { // Give info if this occurs at runtime. |
| 124 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 125 | } |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 126 | |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 127 | CHECK(c->IsErroneous()) << PrettyClass(c) << " " << c->GetStatus(); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 128 | if (c->GetVerifyErrorClass() != NULL) { |
| 129 | // 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] | 130 | ClassHelper ve_ch(c->GetVerifyErrorClass()); |
| 131 | std::string error_descriptor(ve_ch.GetDescriptor()); |
| 132 | Thread::Current()->ThrowNewException(error_descriptor.c_str(), PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 133 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 134 | ThrowNoClassDefFoundError("%s", PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 135 | } |
| 136 | } |
| 137 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 138 | static void WrapExceptionInInitializer() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 139 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 140 | Thread* self = Thread::Current(); |
| 141 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 142 | |
| 143 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 144 | CHECK(cause.get() != NULL); |
| 145 | |
| 146 | env->ExceptionClear(); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 147 | bool is_error = env->IsInstanceOf(cause.get(), WellKnownClasses::java_lang_Error); |
| 148 | env->Throw(cause.get()); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 149 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 150 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 151 | if (!is_error) { |
| 152 | self->ThrowNewWrappedException("Ljava/lang/ExceptionInInitializerError;", NULL); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 153 | } |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 154 | } |
| 155 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 156 | static size_t Hash(const char* s) { |
| 157 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 158 | size_t hash = 0; |
| 159 | for (; *s != '\0'; ++s) { |
| 160 | hash = hash * 31 + *s; |
| 161 | } |
| 162 | return hash; |
| 163 | } |
| 164 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 165 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 166 | "Ljava/lang/Class;", |
| 167 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 168 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 169 | "[Ljava/lang/Object;", |
| 170 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 171 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 172 | "Ljava/lang/ref/Reference;", |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 173 | "Ljava/lang/reflect/Constructor;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 174 | "Ljava/lang/reflect/Field;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 175 | "Ljava/lang/reflect/AbstractMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 176 | "Ljava/lang/reflect/Method;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 177 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 178 | "[Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 179 | "[Ljava/lang/reflect/AbstractMethod;", |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 180 | "[Ljava/lang/reflect/Field;", |
| 181 | "[Ljava/lang/reflect/Method;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 182 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 183 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 184 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 185 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 186 | "Z", |
| 187 | "B", |
| 188 | "C", |
| 189 | "D", |
| 190 | "F", |
| 191 | "I", |
| 192 | "J", |
| 193 | "S", |
| 194 | "V", |
| 195 | "[Z", |
| 196 | "[B", |
| 197 | "[C", |
| 198 | "[D", |
| 199 | "[F", |
| 200 | "[I", |
| 201 | "[J", |
| 202 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 203 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 204 | }; |
| 205 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 206 | ClassLinker* ClassLinker::CreateFromCompiler(const std::vector<const DexFile*>& boot_class_path, |
| 207 | InternTable* intern_table) { |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 208 | CHECK_NE(boot_class_path.size(), 0U); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 209 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 210 | class_linker->InitFromCompiler(boot_class_path); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 211 | return class_linker.release(); |
| 212 | } |
| 213 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 214 | ClassLinker* ClassLinker::CreateFromImage(InternTable* intern_table) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 215 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 216 | class_linker->InitFromImage(); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 217 | return class_linker.release(); |
| 218 | } |
| 219 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 220 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 221 | // dex_lock_ is recursive as it may be used in stack dumping. |
| 222 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel, true), |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 223 | class_roots_(NULL), |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 224 | array_iftable_(NULL), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 225 | init_done_(false), |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 226 | is_dirty_(false), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 227 | intern_table_(intern_table) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 228 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 229 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 230 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 231 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 232 | VLOG(startup) << "ClassLinker::Init"; |
| 233 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 234 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 235 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 236 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 237 | // java_lang_Class comes first, it's needed for AllocClass |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 238 | Thread* self = Thread::Current(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 239 | Heap* heap = Runtime::Current()->GetHeap(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 240 | SirtRef<Class> |
| 241 | 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] | 242 | CHECK(java_lang_Class.get() != NULL); |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 243 | Class::SetClassClass(java_lang_Class.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 244 | java_lang_Class->SetClass(java_lang_Class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 245 | java_lang_Class->SetClassSize(sizeof(ClassClass)); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 246 | // AllocClass(Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 247 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 248 | // Class[] is used for reflection support. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 249 | 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] | 250 | class_array_class->SetComponentType(java_lang_Class.get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 251 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 252 | // 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] | 253 | 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] | 254 | CHECK(java_lang_Object.get() != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 255 | // backfill Object as the super class of Class. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 256 | java_lang_Class->SetSuperClass(java_lang_Object.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 257 | java_lang_Object->SetStatus(Class::kStatusLoaded); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 258 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 259 | // Object[] next to hold class roots. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 260 | 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] | 261 | object_array_class->SetComponentType(java_lang_Object.get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 262 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 263 | // Setup the char class to be used for char[]. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 264 | 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] | 265 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 266 | // Setup the char[] class to be used for String. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 267 | 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] | 268 | char_array_class->SetComponentType(char_class.get()); |
| 269 | CharArray::SetArrayClass(char_array_class.get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 270 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 271 | // Setup String. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 272 | 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] | 273 | String::SetClass(java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 274 | java_lang_String->SetObjectSize(sizeof(String)); |
| 275 | java_lang_String->SetStatus(Class::kStatusResolved); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 276 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 277 | // 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] | 278 | class_roots_ = ObjectArray<Class>::Alloc(self, object_array_class.get(), kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 279 | CHECK(class_roots_ != NULL); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 280 | SetClassRoot(kJavaLangClass, java_lang_Class.get()); |
| 281 | SetClassRoot(kJavaLangObject, java_lang_Object.get()); |
| 282 | SetClassRoot(kClassArrayClass, class_array_class.get()); |
| 283 | SetClassRoot(kObjectArrayClass, object_array_class.get()); |
| 284 | SetClassRoot(kCharArrayClass, char_array_class.get()); |
| 285 | SetClassRoot(kJavaLangString, java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 286 | |
| 287 | // Setup the primitive type classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 288 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(self, Primitive::kPrimBoolean)); |
| 289 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(self, Primitive::kPrimByte)); |
| 290 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(self, Primitive::kPrimShort)); |
| 291 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(self, Primitive::kPrimInt)); |
| 292 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(self, Primitive::kPrimLong)); |
| 293 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(self, Primitive::kPrimFloat)); |
| 294 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(self, Primitive::kPrimDouble)); |
| 295 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(self, Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 296 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 297 | // Create array interface entries to populate once we can load system classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 298 | array_iftable_ = AllocIfTable(self, 2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 299 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 300 | // Create int array type for AllocDexCache (done in AppendToBootClassPath). |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 301 | 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] | 302 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 303 | IntArray::SetArrayClass(int_array_class.get()); |
| 304 | SetClassRoot(kIntArrayClass, int_array_class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 305 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 306 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 307 | |
Ian Rogers | 52813c9 | 2012-10-11 11:50:38 -0700 | [diff] [blame] | 308 | // Set up DexCache. This cannot be done later since AppendToBootClassPath calls AllocDexCache. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 309 | SirtRef<Class> |
| 310 | java_lang_DexCache(self, AllocClass(self, java_lang_Class.get(), sizeof(DexCacheClass))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 311 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.get()); |
| 312 | java_lang_DexCache->SetObjectSize(sizeof(DexCacheClass)); |
| 313 | java_lang_DexCache->SetStatus(Class::kStatusResolved); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 314 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 315 | // 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] | 316 | SirtRef<Class> java_lang_reflect_Field(self, AllocClass(self, java_lang_Class.get(), |
| 317 | sizeof(FieldClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 318 | CHECK(java_lang_reflect_Field.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 319 | java_lang_reflect_Field->SetObjectSize(sizeof(Field)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 320 | SetClassRoot(kJavaLangReflectField, java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 321 | java_lang_reflect_Field->SetStatus(Class::kStatusResolved); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 322 | Field::SetClass(java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 323 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 324 | SirtRef<Class> java_lang_reflect_AbstractMethod(self, AllocClass(self, java_lang_Class.get(), |
| 325 | sizeof(MethodClass))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 326 | CHECK(java_lang_reflect_AbstractMethod.get() != NULL); |
| 327 | java_lang_reflect_AbstractMethod->SetObjectSize(sizeof(AbstractMethod)); |
| 328 | SetClassRoot(kJavaLangReflectAbstractMethod, java_lang_reflect_AbstractMethod.get()); |
| 329 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusResolved); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 330 | |
| 331 | SirtRef<Class> java_lang_reflect_Constructor(self, AllocClass(self, java_lang_Class.get(), |
| 332 | sizeof(MethodClass))); |
| 333 | CHECK(java_lang_reflect_Constructor.get() != NULL); |
| 334 | java_lang_reflect_Constructor->SetObjectSize(sizeof(Constructor)); |
| 335 | java_lang_reflect_Constructor->SetSuperClass(java_lang_reflect_AbstractMethod.get()); |
| 336 | SetClassRoot(kJavaLangReflectConstructor, java_lang_reflect_Constructor.get()); |
| 337 | java_lang_reflect_Constructor->SetStatus(Class::kStatusResolved); |
| 338 | |
| 339 | SirtRef<Class> java_lang_reflect_Method(self, AllocClass(self, java_lang_Class.get(), |
| 340 | sizeof(MethodClass))); |
| 341 | CHECK(java_lang_reflect_Method.get() != NULL); |
| 342 | java_lang_reflect_Method->SetObjectSize(sizeof(Method)); |
| 343 | java_lang_reflect_Method->SetSuperClass(java_lang_reflect_AbstractMethod.get()); |
| 344 | SetClassRoot(kJavaLangReflectMethod, java_lang_reflect_Method.get()); |
| 345 | java_lang_reflect_Method->SetStatus(Class::kStatusResolved); |
| 346 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 347 | AbstractMethod::SetClasses(java_lang_reflect_Constructor.get(), java_lang_reflect_Method.get()); |
| 348 | |
| 349 | // Set up array classes for string, field, method |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 350 | 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] | 351 | object_array_string->SetComponentType(java_lang_String.get()); |
| 352 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.get()); |
| 353 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 354 | SirtRef<Class> object_array_abstract_method(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
| 355 | object_array_abstract_method->SetComponentType(java_lang_reflect_AbstractMethod.get()); |
| 356 | SetClassRoot(kJavaLangReflectAbstractMethodArrayClass, object_array_abstract_method.get()); |
| 357 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 358 | 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] | 359 | object_array_field->SetComponentType(java_lang_reflect_Field.get()); |
| 360 | SetClassRoot(kJavaLangReflectFieldArrayClass, object_array_field.get()); |
| 361 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 362 | SirtRef<Class> object_array_method(self, AllocClass(self, java_lang_Class.get(), sizeof(Class))); |
| 363 | object_array_method->SetComponentType(java_lang_reflect_Method.get()); |
| 364 | SetClassRoot(kJavaLangReflectMethodArrayClass, object_array_method.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 365 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 366 | // Setup boot_class_path_ and register class_path now that we can use AllocObjectArray to create |
| 367 | // DexCache instances. Needs to be after String, Field, Method arrays since AllocDexCache uses |
| 368 | // these roots. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 369 | CHECK_NE(0U, boot_class_path.size()); |
| 370 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 371 | const DexFile* dex_file = boot_class_path[i]; |
| 372 | CHECK(dex_file != NULL); |
| 373 | AppendToBootClassPath(*dex_file); |
| 374 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 375 | |
| 376 | // now we can use FindSystemClass |
| 377 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 378 | // run char class through InitializePrimitiveClass to finish init |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 379 | InitializePrimitiveClass(char_class.get(), Primitive::kPrimChar); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 380 | SetClassRoot(kPrimitiveChar, char_class.get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 381 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 382 | // 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] | 383 | java_lang_Object->SetStatus(Class::kStatusNotReady); |
| 384 | Class* Object_class = FindSystemClass("Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 385 | CHECK_EQ(java_lang_Object.get(), Object_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 386 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(Object)); |
| 387 | java_lang_String->SetStatus(Class::kStatusNotReady); |
| 388 | Class* String_class = FindSystemClass("Ljava/lang/String;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 389 | CHECK_EQ(java_lang_String.get(), String_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 390 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(String)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 391 | java_lang_DexCache->SetStatus(Class::kStatusNotReady); |
| 392 | Class* DexCache_class = FindSystemClass("Ljava/lang/DexCache;"); |
| 393 | CHECK_EQ(java_lang_String.get(), String_class); |
| 394 | CHECK_EQ(java_lang_DexCache.get(), DexCache_class); |
| 395 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), sizeof(DexCache)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 396 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 397 | // 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] | 398 | SetClassRoot(kBooleanArrayClass, FindSystemClass("[Z")); |
| 399 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 400 | |
| 401 | SetClassRoot(kByteArrayClass, FindSystemClass("[B")); |
| 402 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 403 | |
| 404 | Class* found_char_array_class = FindSystemClass("[C"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 405 | CHECK_EQ(char_array_class.get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 406 | |
| 407 | SetClassRoot(kShortArrayClass, FindSystemClass("[S")); |
| 408 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 409 | |
| 410 | Class* found_int_array_class = FindSystemClass("[I"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 411 | CHECK_EQ(int_array_class.get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 412 | |
| 413 | SetClassRoot(kLongArrayClass, FindSystemClass("[J")); |
| 414 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 415 | |
| 416 | SetClassRoot(kFloatArrayClass, FindSystemClass("[F")); |
| 417 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 418 | |
| 419 | SetClassRoot(kDoubleArrayClass, FindSystemClass("[D")); |
| 420 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 421 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 422 | Class* found_class_array_class = FindSystemClass("[Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 423 | CHECK_EQ(class_array_class.get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 424 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 425 | Class* found_object_array_class = FindSystemClass("[Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 426 | CHECK_EQ(object_array_class.get(), found_object_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 427 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 428 | // Setup the single, global copy of "iftable". |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 429 | Class* java_lang_Cloneable = FindSystemClass("Ljava/lang/Cloneable;"); |
| 430 | CHECK(java_lang_Cloneable != NULL); |
| 431 | Class* java_io_Serializable = FindSystemClass("Ljava/io/Serializable;"); |
| 432 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 433 | // We assume that Cloneable/Serializable don't have superinterfaces -- normally we'd have to |
| 434 | // crawl up and explicitly list all of the supers as well. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 435 | array_iftable_->SetInterface(0, java_lang_Cloneable); |
| 436 | array_iftable_->SetInterface(1, java_io_Serializable); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 437 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 438 | // Sanity check Class[] and Object[]'s interfaces. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 439 | ClassHelper kh(class_array_class.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 440 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 441 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 442 | kh.ChangeClass(object_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 443 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 444 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 445 | // Run Class, Constructor, Field, and Method through FindSystemClass. This initializes their |
| 446 | // dex_cache_ fields and register them in classes_. |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 447 | Class* Class_class = FindSystemClass("Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 448 | CHECK_EQ(java_lang_Class.get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 449 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 450 | java_lang_reflect_AbstractMethod->SetStatus(Class::kStatusNotReady); |
| 451 | Class* Abstract_method_class = FindSystemClass("Ljava/lang/reflect/AbstractMethod;"); |
| 452 | CHECK_EQ(java_lang_reflect_AbstractMethod.get(), Abstract_method_class); |
| 453 | |
| 454 | // Method extends AbstractMethod so must reset after. |
| 455 | java_lang_reflect_Method->SetStatus(Class::kStatusNotReady); |
| 456 | Class* Method_class = FindSystemClass("Ljava/lang/reflect/Method;"); |
| 457 | CHECK_EQ(java_lang_reflect_Method.get(), Method_class); |
| 458 | |
| 459 | // Constructor extends AbstractMethod so must reset after. |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 460 | java_lang_reflect_Constructor->SetStatus(Class::kStatusNotReady); |
| 461 | Class* Constructor_class = FindSystemClass("Ljava/lang/reflect/Constructor;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 462 | CHECK_EQ(java_lang_reflect_Constructor.get(), Constructor_class); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 463 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 464 | java_lang_reflect_Field->SetStatus(Class::kStatusNotReady); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 465 | Class* Field_class = FindSystemClass("Ljava/lang/reflect/Field;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 466 | CHECK_EQ(java_lang_reflect_Field.get(), Field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 467 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 468 | Class* String_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangStringArrayClass]); |
| 469 | CHECK_EQ(object_array_string.get(), String_array_class); |
| 470 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 471 | Class* Abstract_method_array_class = |
| 472 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]); |
| 473 | CHECK_EQ(object_array_abstract_method.get(), Abstract_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 474 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 475 | Class* Field_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangReflectFieldArrayClass]); |
| 476 | CHECK_EQ(object_array_field.get(), Field_array_class); |
| 477 | |
| 478 | Class* Method_array_class = |
| 479 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectMethodArrayClass]); |
| 480 | CHECK_EQ(object_array_method.get(), Method_array_class); |
| 481 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 482 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 483 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 484 | // Create java.lang.reflect.Proxy root. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 485 | Class* java_lang_reflect_Proxy = FindSystemClass("Ljava/lang/reflect/Proxy;"); |
| 486 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 487 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 488 | // 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] | 489 | Class* java_lang_ref_Reference = FindSystemClass("Ljava/lang/ref/Reference;"); |
| 490 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 491 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 492 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 493 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 494 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 495 | Class* java_lang_ref_PhantomReference = FindSystemClass("Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 496 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 497 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 498 | kAccClassIsReference | kAccClassIsPhantomReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 499 | Class* java_lang_ref_SoftReference = FindSystemClass("Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 500 | java_lang_ref_SoftReference->SetAccessFlags( |
| 501 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 502 | Class* java_lang_ref_WeakReference = FindSystemClass("Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 503 | java_lang_ref_WeakReference->SetAccessFlags( |
| 504 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 505 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 506 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 507 | // Setup the ClassLoader, verifying the object_size_. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 508 | Class* java_lang_ClassLoader = FindSystemClass("Ljava/lang/ClassLoader;"); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 509 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 510 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 511 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 512 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 513 | // java.lang.StackTraceElement as a convenience. |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 514 | SetClassRoot(kJavaLangThrowable, FindSystemClass("Ljava/lang/Throwable;")); |
| 515 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 516 | SetClassRoot(kJavaLangClassNotFoundException, FindSystemClass("Ljava/lang/ClassNotFoundException;")); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 517 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass("Ljava/lang/StackTraceElement;")); |
| 518 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass("[Ljava/lang/StackTraceElement;")); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 519 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 520 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 521 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 522 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 523 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 524 | } |
| 525 | |
| 526 | void ClassLinker::FinishInit() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 527 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 528 | |
| 529 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 530 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 531 | // as the types of the field can't be resolved prior to the runtime being |
| 532 | // fully initialized |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 533 | Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 534 | Class* java_lang_ref_ReferenceQueue = FindSystemClass("Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 535 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
| 536 | |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 537 | const DexFile& java_lang_dex = *java_lang_ref_Reference->GetDexCache()->GetDexFile(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 538 | |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 539 | Field* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 540 | FieldHelper fh(pendingNext, this); |
| 541 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
| 542 | CHECK_EQ(java_lang_dex.GetFieldId(pendingNext->GetDexFieldIndex()).type_idx_, |
| 543 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 544 | |
| 545 | Field* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 546 | fh.ChangeField(queue); |
| 547 | CHECK_STREQ(fh.GetName(), "queue"); |
| 548 | CHECK_EQ(java_lang_dex.GetFieldId(queue->GetDexFieldIndex()).type_idx_, |
| 549 | java_lang_ref_ReferenceQueue->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 550 | |
| 551 | Field* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 552 | fh.ChangeField(queueNext); |
| 553 | CHECK_STREQ(fh.GetName(), "queueNext"); |
| 554 | CHECK_EQ(java_lang_dex.GetFieldId(queueNext->GetDexFieldIndex()).type_idx_, |
| 555 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 556 | |
| 557 | Field* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 558 | fh.ChangeField(referent); |
| 559 | CHECK_STREQ(fh.GetName(), "referent"); |
| 560 | CHECK_EQ(java_lang_dex.GetFieldId(referent->GetDexFieldIndex()).type_idx_, |
| 561 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 562 | |
| 563 | Field* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 564 | fh.ChangeField(zombie); |
| 565 | CHECK_STREQ(fh.GetName(), "zombie"); |
| 566 | CHECK_EQ(java_lang_dex.GetFieldId(zombie->GetDexFieldIndex()).type_idx_, |
| 567 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 568 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 569 | Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 570 | heap->SetReferenceOffsets(referent->GetOffset(), |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 571 | queue->GetOffset(), |
| 572 | queueNext->GetOffset(), |
| 573 | pendingNext->GetOffset(), |
| 574 | zombie->GetOffset()); |
| 575 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 576 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 577 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 578 | ClassRoot class_root = static_cast<ClassRoot>(i); |
| 579 | Class* klass = GetClassRoot(class_root); |
| 580 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 581 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 582 | // note SetClassRoot does additional validation. |
| 583 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 584 | } |
| 585 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 586 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 587 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 588 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 589 | // that Object, Class, and Object[] are setup |
| 590 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 591 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 592 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 593 | } |
| 594 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 595 | void ClassLinker::RunRootClinits() { |
| 596 | Thread* self = Thread::Current(); |
| 597 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
| 598 | Class* c = GetClassRoot(ClassRoot(i)); |
| 599 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 600 | EnsureInitialized(GetClassRoot(ClassRoot(i)), true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 601 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 602 | } |
| 603 | } |
| 604 | } |
| 605 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 606 | bool ClassLinker::GenerateOatFile(const std::string& dex_filename, |
| 607 | int oat_fd, |
| 608 | const std::string& oat_cache_filename) { |
Brian Carlstrom | a56fcd6 | 2012-02-04 21:23:01 -0800 | [diff] [blame] | 609 | std::string dex2oat_string(GetAndroidRoot()); |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 610 | dex2oat_string += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 611 | const char* dex2oat = dex2oat_string.c_str(); |
| 612 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 613 | const char* class_path = Runtime::Current()->GetClassPathString().c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 614 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 615 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 616 | std::string boot_image_option_string("--boot-image="); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 617 | boot_image_option_string += heap->GetImageSpace()->GetImageFilename(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 618 | const char* boot_image_option = boot_image_option_string.c_str(); |
| 619 | |
| 620 | std::string dex_file_option_string("--dex-file="); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 621 | dex_file_option_string += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 622 | const char* dex_file_option = dex_file_option_string.c_str(); |
| 623 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 624 | std::string oat_fd_option_string("--oat-fd="); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 625 | StringAppendF(&oat_fd_option_string, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 626 | const char* oat_fd_option = oat_fd_option_string.c_str(); |
| 627 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 628 | std::string oat_location_option_string("--oat-location="); |
| 629 | oat_location_option_string += oat_cache_filename; |
| 630 | const char* oat_location_option = oat_location_option_string.c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 631 | |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 632 | // fork and exec dex2oat |
| 633 | pid_t pid = fork(); |
| 634 | if (pid == 0) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 635 | // no allocation allowed between fork and exec |
Ian Rogers | 725aee5 | 2012-01-11 11:56:56 -0800 | [diff] [blame] | 636 | |
| 637 | // change process groups, so we don't get reaped by ProcessManager |
| 638 | setpgid(0, 0); |
| 639 | |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 640 | VLOG(class_linker) << dex2oat |
| 641 | << " --runtime-arg -Xms64m" |
| 642 | << " --runtime-arg -Xmx64m" |
| 643 | << " --runtime-arg -classpath" |
| 644 | << " --runtime-arg " << class_path |
| 645 | << " " << boot_image_option |
| 646 | << " " << dex_file_option |
| 647 | << " " << oat_fd_option |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 648 | << " " << oat_location_option; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 649 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 650 | execl(dex2oat, dex2oat, |
jeffhao | 5d84040 | 2011-10-24 17:09:45 -0700 | [diff] [blame] | 651 | "--runtime-arg", "-Xms64m", |
| 652 | "--runtime-arg", "-Xmx64m", |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 653 | "--runtime-arg", "-classpath", |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 654 | "--runtime-arg", class_path, |
| 655 | boot_image_option, |
| 656 | dex_file_option, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 657 | oat_fd_option, |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 658 | oat_location_option, |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 659 | NULL); |
| 660 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 661 | PLOG(FATAL) << "execl(" << dex2oat << ") failed"; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 662 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 663 | } else { |
| 664 | // wait for dex2oat to finish |
| 665 | int status; |
| 666 | pid_t got_pid = TEMP_FAILURE_RETRY(waitpid(pid, &status, 0)); |
| 667 | if (got_pid != pid) { |
| 668 | PLOG(ERROR) << "waitpid failed: wanted " << pid << ", got " << got_pid; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 669 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 670 | } |
| 671 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 672 | LOG(ERROR) << dex2oat << " failed with dex-file=" << dex_filename; |
| 673 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 674 | } |
| 675 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 676 | return true; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 677 | } |
| 678 | |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 679 | void ClassLinker::RegisterOatFile(const OatFile& oat_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 680 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 681 | RegisterOatFileLocked(oat_file); |
| 682 | } |
| 683 | |
| 684 | void ClassLinker::RegisterOatFileLocked(const OatFile& oat_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 685 | dex_lock_.AssertHeld(Thread::Current()); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 686 | #ifndef NDEBUG |
| 687 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 688 | CHECK_NE(&oat_file, oat_files_[i]) << oat_file.GetLocation(); |
| 689 | } |
| 690 | #endif |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 691 | oat_files_.push_back(&oat_file); |
| 692 | } |
| 693 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 694 | OatFile* ClassLinker::OpenOat(const ImageSpace* space) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 695 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 696 | const Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 697 | const ImageHeader& image_header = space->GetImageHeader(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 698 | // Grab location but don't use Object::AsString as we haven't yet initialized the roots to |
| 699 | // check the down cast |
| 700 | String* oat_location = down_cast<String*>(image_header.GetImageRoot(ImageHeader::kOatLocation)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 701 | std::string oat_filename; |
| 702 | oat_filename += runtime->GetHostPrefix(); |
| 703 | oat_filename += oat_location->ToModifiedUtf8(); |
Mathieu Chartier | d8195f1 | 2012-10-05 12:21:28 -0700 | [diff] [blame] | 704 | runtime->GetHeap()->UnReserveOatFileAddressRange(); |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 705 | OatFile* oat_file = OatFile::Open(oat_filename, oat_filename, |
| 706 | image_header.GetOatBegin(), |
| 707 | OatFile::kRelocNone); |
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) { |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 746 | UniquePtr<OatFile> oat_file( |
| 747 | OatFile::Open(oat_location, oat_location, NULL, OatFile::kRelocAll)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 748 | if (oat_file.get() == NULL) { |
| 749 | return NULL; |
| 750 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 751 | Runtime* runtime = Runtime::Current(); |
| 752 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 753 | if (oat_file->GetOatHeader().GetImageFileLocationOatChecksum() != image_header.GetOatChecksum()) { |
| 754 | return NULL; |
| 755 | } |
| 756 | if (oat_file->GetOatHeader().GetImageFileLocationOatBegin() |
| 757 | != reinterpret_cast<uint32_t>(image_header.GetOatBegin())) { |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 758 | return NULL; |
| 759 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 760 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 761 | if (oat_dex_file == NULL) { |
| 762 | return NULL; |
| 763 | } |
| 764 | if (oat_dex_file->GetDexFileLocationChecksum() != dex_location_checksum) { |
| 765 | return NULL; |
| 766 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 767 | runtime->GetClassLinker()->RegisterOatFile(*oat_file.release()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 768 | return oat_dex_file->OpenDexFile(); |
| 769 | } |
| 770 | |
| 771 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocation(const std::string& dex_location, |
| 772 | const std::string& oat_location) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 773 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 774 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_location); |
| 775 | } |
| 776 | |
| 777 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocationLocked(const std::string& dex_location, |
| 778 | const std::string& oat_location) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 779 | uint32_t dex_location_checksum; |
| 780 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 781 | LOG(ERROR) << "Failed to compute checksum '" << dex_location << "'"; |
| 782 | return NULL; |
| 783 | } |
| 784 | |
| 785 | // Check if we already have an up-to-date output file |
| 786 | const DexFile* dex_file = FindDexFileInOatLocation(dex_location, |
| 787 | dex_location_checksum, |
| 788 | oat_location); |
| 789 | if (dex_file != NULL) { |
| 790 | return dex_file; |
| 791 | } |
| 792 | |
| 793 | // Generate the output oat file for the dex file |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 794 | UniquePtr<File> file(OS::OpenFile(oat_location.c_str(), true)); |
| 795 | if (file.get() == NULL) { |
| 796 | LOG(ERROR) << "Failed to create oat file: " << oat_location; |
| 797 | return NULL; |
| 798 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 799 | if (!GenerateOatFile(dex_location, file->Fd(), oat_location)) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 800 | LOG(ERROR) << "Failed to generate oat file: " << oat_location; |
| 801 | return NULL; |
| 802 | } |
| 803 | // Open the oat from file descriptor we passed to GenerateOatFile |
| 804 | if (lseek(file->Fd(), 0, SEEK_SET) != 0) { |
| 805 | LOG(ERROR) << "Failed to seek to start of generated oat file: " << oat_location; |
| 806 | return NULL; |
| 807 | } |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 808 | const OatFile* oat_file = |
| 809 | OatFile::Open(*file.get(), oat_location, NULL, OatFile::kRelocAll); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 810 | if (oat_file == NULL) { |
| 811 | LOG(ERROR) << "Failed to open generated oat file: " << oat_location; |
| 812 | return NULL; |
| 813 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 814 | RegisterOatFileLocked(*oat_file); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 815 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 816 | if (oat_dex_file == NULL) { |
| 817 | LOG(ERROR) << "Failed to find dex file in generated oat file: " << oat_location; |
| 818 | return NULL; |
| 819 | } |
| 820 | return oat_dex_file->OpenDexFile(); |
| 821 | } |
| 822 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 823 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
| 824 | const std::string& dex_location, |
| 825 | uint32_t dex_location_checksum) { |
| 826 | Runtime* runtime = Runtime::Current(); |
| 827 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 828 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
| 829 | uint32_t image_oat_begin = reinterpret_cast<uint32_t>(image_header.GetOatBegin()); |
| 830 | bool image_check = ((oat_file->GetOatHeader().GetImageFileLocationOatChecksum() == image_oat_checksum) |
| 831 | && (oat_file->GetOatHeader().GetImageFileLocationOatBegin() == image_oat_begin)); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 832 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 833 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 834 | if (oat_dex_file == NULL) { |
| 835 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 836 | << " does not contain contents for " << dex_location; |
| 837 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 838 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 839 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
| 840 | LOG(ERROR) << ".oat file " << oat_file->GetLocation() |
| 841 | << " contains contents for " << oat_dex_file->GetDexFileLocation(); |
| 842 | } |
| 843 | return false; |
| 844 | } |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 845 | bool dex_check = dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 846 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 847 | if (image_check && dex_check) { |
| 848 | return true; |
| 849 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 850 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 851 | if (!image_check) { |
| 852 | std::string image_file(image_header.GetImageRoot( |
| 853 | ImageHeader::kOatLocation)->AsString()->ToModifiedUtf8()); |
| 854 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 855 | << " mismatch ( " << std::hex << oat_file->GetOatHeader().GetImageFileLocationOatChecksum() |
| 856 | << ", " << oat_file->GetOatHeader().GetImageFileLocationOatBegin() |
| 857 | << ") with " << image_file |
| 858 | << " (" << image_oat_checksum << ", " << std::hex << image_oat_begin << ")"; |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 859 | } |
| 860 | if (!dex_check) { |
| 861 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 862 | << " mismatch ( " << std::hex << oat_dex_file->GetDexFileLocationChecksum() |
| 863 | << ") with " << dex_location |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 864 | << " (" << std::hex << dex_location_checksum << ")"; |
| 865 | } |
| 866 | return false; |
| 867 | } |
| 868 | |
| 869 | const DexFile* ClassLinker::VerifyAndOpenDexFileFromOatFile(const OatFile* oat_file, |
| 870 | const std::string& dex_location, |
| 871 | uint32_t dex_location_checksum) { |
| 872 | bool verified = VerifyOatFileChecksums(oat_file, dex_location, dex_location_checksum); |
| 873 | if (!verified) { |
| 874 | return NULL; |
| 875 | } |
| 876 | RegisterOatFileLocked(*oat_file); |
| 877 | return oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 878 | } |
| 879 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 880 | const DexFile* ClassLinker::FindDexFileInOatFileFromDexLocation(const std::string& dex_location) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 881 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 882 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 883 | const OatFile* open_oat_file = FindOpenedOatFileFromDexLocation(dex_location); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 884 | if (open_oat_file != NULL) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 885 | return open_oat_file->GetOatDexFile(dex_location)->OpenDexFile(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 886 | } |
| 887 | |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 888 | // Look for an existing file next to dex. for example, for |
| 889 | // /foo/bar/baz.jar, look for /foo/bar/baz.jar.oat. |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 890 | std::string oat_filename(OatFile::DexFilenameToOatFilename(dex_location)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 891 | const OatFile* oat_file = FindOatFileFromOatLocationLocked(oat_filename); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 892 | if (oat_file != NULL) { |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 893 | uint32_t dex_location_checksum; |
| 894 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 895 | // If no classes.dex found in dex_location, it has been stripped, assume oat is up-to-date. |
| 896 | // This is the common case in user builds for jar's and apk's in the /system directory. |
| 897 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location); |
| 898 | CHECK(oat_dex_file != NULL) << oat_filename << " " << dex_location; |
| 899 | RegisterOatFileLocked(*oat_file); |
| 900 | return oat_dex_file->OpenDexFile(); |
| 901 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 902 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 903 | dex_location, |
| 904 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 905 | if (dex_file != NULL) { |
| 906 | return dex_file; |
| 907 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 908 | } |
| 909 | // Look for an existing file in the art-cache, validating the result if found |
| 910 | // not found in /foo/bar/baz.oat? try /data/art-cache/foo@bar@baz.oat |
| 911 | std::string cache_location(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 912 | oat_file = FindOatFileFromOatLocationLocked(cache_location); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 913 | if (oat_file != NULL) { |
| 914 | uint32_t dex_location_checksum; |
| 915 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum)) { |
| 916 | LOG(WARNING) << "Failed to compute checksum: " << dex_location; |
| 917 | return NULL; |
| 918 | } |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 919 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(oat_file, |
| 920 | dex_location, |
| 921 | dex_location_checksum); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 922 | if (dex_file != NULL) { |
| 923 | return dex_file; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 924 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 925 | if (TEMP_FAILURE_RETRY(unlink(oat_file->GetLocation().c_str())) != 0) { |
Brian Carlstrom | 5ef7493 | 2012-03-23 17:56:02 -0700 | [diff] [blame] | 926 | PLOG(FATAL) << "Failed to remove obsolete .oat file " << oat_file->GetLocation(); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 927 | } |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 928 | } |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 929 | LOG(INFO) << "Failed to open oat file from " << oat_filename << " or " << cache_location << "."; |
| 930 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 931 | // Try to generate oat file if it wasn't found or was obsolete. |
| 932 | std::string oat_cache_filename(GetArtCacheFilenameOrDie(oat_filename)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 933 | return FindOrCreateOatFileForDexLocationLocked(dex_location, oat_cache_filename); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 934 | } |
| 935 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 936 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 937 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 938 | const OatFile* oat_file = oat_files_[i]; |
| 939 | DCHECK(oat_file != NULL); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 940 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 941 | return oat_file; |
| 942 | } |
| 943 | } |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 944 | return NULL; |
| 945 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 946 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 947 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 948 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 949 | return FindOatFileFromOatLocationLocked(oat_location); |
| 950 | } |
| 951 | |
| 952 | const OatFile* ClassLinker::FindOatFileFromOatLocationLocked(const std::string& oat_location) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 953 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
| 954 | if (oat_file != NULL) { |
| 955 | return oat_file; |
| 956 | } |
| 957 | |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 958 | oat_file = OatFile::Open(oat_location, oat_location, NULL, |
| 959 | OatFile::kRelocAll); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 960 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 961 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 962 | } |
| 963 | return oat_file; |
| 964 | } |
| 965 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 966 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 967 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 968 | CHECK(!init_done_); |
| 969 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 970 | Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 971 | ImageSpace* space = heap->GetImageSpace(); |
| 972 | OatFile* oat_file = OpenOat(space); |
| 973 | CHECK(oat_file != NULL) << "Failed to open oat file for image"; |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 974 | CHECK_EQ(oat_file->GetOatHeader().GetImageFileLocationOatChecksum(), 0U); |
| 975 | CHECK_EQ(oat_file->GetOatHeader().GetImageFileLocationOatBegin(), 0U); |
Elliott Hughes | 7484741 | 2012-06-20 18:10:21 -0700 | [diff] [blame] | 976 | CHECK(oat_file->GetOatHeader().GetImageFileLocation().empty()); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 977 | Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 978 | ObjectArray<DexCache>* dex_caches = dex_caches_object->AsObjectArray<DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 979 | |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 980 | ObjectArray<Class>* class_roots = |
| 981 | space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots)->AsObjectArray<Class>(); |
| 982 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 983 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 984 | // as being Strings or not |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 985 | String::SetClass(class_roots->Get(kJavaLangString)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 986 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 987 | CHECK_EQ(oat_file->GetOatHeader().GetDexFileCount(), |
| 988 | static_cast<uint32_t>(dex_caches->GetLength())); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 989 | Thread* self = Thread::Current(); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 990 | for (int i = 0; i < dex_caches->GetLength(); i++) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 991 | SirtRef<DexCache> dex_cache(self, dex_caches->Get(i)); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 992 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
| 993 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file_location); |
| 994 | const DexFile* dex_file = oat_dex_file->OpenDexFile(); |
| 995 | if (dex_file == NULL) { |
| 996 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
| 997 | << " from within oat file " << oat_file->GetLocation(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 998 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 999 | |
| 1000 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 1001 | |
| 1002 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1003 | } |
| 1004 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1005 | // reinit clases_ table |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 1006 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1007 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 357e9be | 2012-08-01 11:00:14 -0700 | [diff] [blame] | 1008 | heap->FlushAllocStack(); |
Mathieu Chartier | e0f0cb3 | 2012-08-28 11:26:00 -0700 | [diff] [blame] | 1009 | heap->GetLiveBitmap()->Walk(InitFromImageCallback, this); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 1010 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1011 | |
| 1012 | // reinit class_roots_ |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1013 | Class::SetClassClass(class_roots->Get(kJavaLangClass)); |
| 1014 | class_roots_ = class_roots; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1015 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1016 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1017 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 1018 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1019 | // String class root was set above |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1020 | Field::SetClass(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1021 | AbstractMethod::SetClasses(GetClassRoot(kJavaLangReflectConstructor), |
| 1022 | GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1023 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 1024 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 1025 | CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 1026 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 1027 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 1028 | IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1029 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1030 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1031 | Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1032 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1033 | |
| 1034 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1035 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1036 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1037 | } |
| 1038 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 1039 | void ClassLinker::InitFromImageCallback(Object* obj, void* arg) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1040 | DCHECK(obj != NULL); |
| 1041 | DCHECK(arg != NULL); |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1042 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1043 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1044 | if (obj->GetClass()->IsStringClass()) { |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 1045 | class_linker->intern_table_->RegisterStrong(obj->AsString()); |
Brian Carlstrom | c74255f | 2011-09-11 22:47:39 -0700 | [diff] [blame] | 1046 | return; |
| 1047 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1048 | if (obj->IsClass()) { |
| 1049 | // restore class to ClassLinker::classes_ table |
| 1050 | Class* klass = obj->AsClass(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1051 | ClassHelper kh(klass, class_linker); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1052 | Class* existing = class_linker->InsertClass(kh.GetDescriptor(), klass, true); |
| 1053 | DCHECK(existing == NULL) << kh.GetDescriptor(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1054 | return; |
| 1055 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1056 | } |
| 1057 | |
| 1058 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1059 | // reinit references to when reinitializing a ClassLinker from a |
| 1060 | // mapped image. |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 1061 | void ClassLinker::VisitRoots(Heap::RootVisitor* visitor, void* arg) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1062 | visitor(class_roots_, arg); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1063 | Thread* self = Thread::Current(); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1064 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1065 | MutexLock mu(self, dex_lock_); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1066 | for (size_t i = 0; i < dex_caches_.size(); i++) { |
| 1067 | visitor(dex_caches_[i], arg); |
| 1068 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1069 | } |
| 1070 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1071 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1072 | MutexLock mu(self, *Locks::classlinker_classes_lock_); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1073 | typedef Table::const_iterator It; // TODO: C++0x auto |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1074 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 1075 | visitor(it->second, arg); |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1076 | } |
Mathieu Chartier | 262e5ff | 2012-06-01 17:35:38 -0700 | [diff] [blame] | 1077 | |
| 1078 | // We deliberately ignore the class roots in the image since we |
| 1079 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1080 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1081 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1082 | visitor(array_iftable_, arg); |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 1083 | is_dirty_ = false; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1084 | } |
| 1085 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1086 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1087 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1088 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 1089 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 1090 | if (!visitor(it->second, arg)) { |
| 1091 | return; |
| 1092 | } |
| 1093 | } |
| 1094 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 1095 | if (!visitor(it->second, arg)) { |
| 1096 | return; |
| 1097 | } |
| 1098 | } |
| 1099 | } |
| 1100 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1101 | static bool GetClassesVisitor(Class* c, void* arg) { |
| 1102 | std::set<Class*>* classes = reinterpret_cast<std::set<Class*>*>(arg); |
| 1103 | classes->insert(c); |
| 1104 | return true; |
| 1105 | } |
| 1106 | |
| 1107 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) const { |
| 1108 | std::set<Class*> classes; |
| 1109 | VisitClasses(GetClassesVisitor, &classes); |
| 1110 | typedef std::set<Class*>::const_iterator It; // TODO: C++0x auto |
| 1111 | for (It it = classes.begin(), end = classes.end(); it != end; ++it) { |
| 1112 | if (!visitor(*it, arg)) { |
| 1113 | return; |
| 1114 | } |
| 1115 | } |
| 1116 | } |
| 1117 | |
| 1118 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1119 | ClassLinker::~ClassLinker() { |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1120 | Class::ResetClass(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1121 | String::ResetClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1122 | Field::ResetClass(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1123 | AbstractMethod::ResetClasses(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1124 | BooleanArray::ResetArrayClass(); |
| 1125 | ByteArray::ResetArrayClass(); |
| 1126 | CharArray::ResetArrayClass(); |
| 1127 | DoubleArray::ResetArrayClass(); |
| 1128 | FloatArray::ResetArrayClass(); |
| 1129 | IntArray::ResetArrayClass(); |
| 1130 | LongArray::ResetArrayClass(); |
| 1131 | ShortArray::ResetArrayClass(); |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 1132 | Throwable::ResetClass(); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1133 | StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1134 | STLDeleteElements(&boot_class_path_); |
| 1135 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1136 | } |
| 1137 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1138 | DexCache* ClassLinker::AllocDexCache(Thread* self, const DexFile& dex_file) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1139 | Heap* heap = Runtime::Current()->GetHeap(); |
| 1140 | Class* dex_cache_class = GetClassRoot(kJavaLangDexCache); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1141 | SirtRef<DexCache> dex_cache(self, |
| 1142 | down_cast<DexCache*>(heap->AllocObject(self, dex_cache_class, |
| 1143 | dex_cache_class->GetObjectSize()))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1144 | if (dex_cache.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1145 | return NULL; |
| 1146 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1147 | SirtRef<String> location(self, intern_table_->InternStrong(dex_file.GetLocation().c_str())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1148 | if (location.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1149 | return NULL; |
| 1150 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1151 | SirtRef<ObjectArray<String> > strings(self, AllocStringArray(self, dex_file.NumStringIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1152 | if (strings.get() == NULL) { |
| 1153 | return NULL; |
| 1154 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1155 | SirtRef<ObjectArray<Class> > types(self, AllocClassArray(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1156 | if (types.get() == NULL) { |
| 1157 | return NULL; |
| 1158 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1159 | SirtRef<ObjectArray<AbstractMethod> > |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1160 | methods(self, AllocAbstractMethodArray(self, dex_file.NumMethodIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1161 | if (methods.get() == NULL) { |
| 1162 | return NULL; |
| 1163 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1164 | SirtRef<ObjectArray<Field> > fields(self, AllocFieldArray(self, dex_file.NumFieldIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1165 | if (fields.get() == NULL) { |
| 1166 | return NULL; |
| 1167 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1168 | SirtRef<ObjectArray<StaticStorageBase> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1169 | initialized_static_storage(self, |
| 1170 | AllocObjectArray<StaticStorageBase>(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1171 | if (initialized_static_storage.get() == NULL) { |
| 1172 | return NULL; |
| 1173 | } |
| 1174 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1175 | dex_cache->Init(&dex_file, |
| 1176 | location.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1177 | strings.get(), |
| 1178 | types.get(), |
| 1179 | methods.get(), |
| 1180 | fields.get(), |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1181 | initialized_static_storage.get()); |
| 1182 | return dex_cache.get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1183 | } |
| 1184 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1185 | 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] | 1186 | DCHECK_GE(class_size, sizeof(Class)); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1187 | Heap* heap = Runtime::Current()->GetHeap(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1188 | SirtRef<Class> klass(self, |
| 1189 | heap->AllocObject(self, java_lang_Class, class_size)->AsClass()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1190 | klass->SetPrimitiveType(Primitive::kPrimNot); // default to not being primitive |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1191 | klass->SetClassSize(class_size); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1192 | return klass.get(); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1193 | } |
| 1194 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1195 | Class* ClassLinker::AllocClass(Thread* self, size_t class_size) { |
| 1196 | return AllocClass(self, GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1197 | } |
| 1198 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1199 | Field* ClassLinker::AllocField(Thread* self) { |
| 1200 | return down_cast<Field*>(GetClassRoot(kJavaLangReflectField)->AllocObject(self)); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1201 | } |
| 1202 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1203 | Method* ClassLinker::AllocMethod(Thread* self) { |
| 1204 | return down_cast<Method*>(GetClassRoot(kJavaLangReflectMethod)->AllocObject(self)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1205 | } |
| 1206 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1207 | Constructor* ClassLinker::AllocConstructor(Thread* self) { |
| 1208 | return down_cast<Constructor*>(GetClassRoot(kJavaLangReflectConstructor)->AllocObject(self)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1209 | } |
| 1210 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1211 | ObjectArray<StackTraceElement>* ClassLinker::AllocStackTraceElementArray(Thread* self, |
| 1212 | size_t length) { |
| 1213 | return ObjectArray<StackTraceElement>::Alloc(self, |
| 1214 | GetClassRoot(kJavaLangStackTraceElementArrayClass), |
| 1215 | length); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1216 | } |
| 1217 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1218 | static Class* EnsureResolved(Thread* self, Class* klass) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1219 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1220 | DCHECK(klass != NULL); |
| 1221 | // Wait for the class if it has not already been linked. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1222 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1223 | ObjectLock lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1224 | // Check for circular dependencies between classes. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1225 | if (!klass->IsResolved() && klass->GetClinitThreadId() == self->GetTid()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 1226 | self->ThrowNewException("Ljava/lang/ClassCircularityError;", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1227 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1228 | klass->SetStatus(Class::kStatusError); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1229 | return NULL; |
| 1230 | } |
| 1231 | // Wait for the pending initialization to complete. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1232 | while (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1233 | lock.Wait(); |
| 1234 | } |
| 1235 | } |
| 1236 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1237 | ThrowEarlierClassFailure(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1238 | return NULL; |
| 1239 | } |
| 1240 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1241 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
| 1242 | CHECK(!self->IsExceptionPending()) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1243 | << PrettyClass(klass) << " " << PrettyTypeOf(self->GetException()) << "\n" |
| 1244 | << self->GetException()->Dump(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1245 | return klass; |
| 1246 | } |
| 1247 | |
Elliott Hughes | db7d5e9 | 2011-12-16 18:47:37 -0800 | [diff] [blame] | 1248 | Class* ClassLinker::FindSystemClass(const char* descriptor) { |
| 1249 | return FindClass(descriptor, NULL); |
| 1250 | } |
| 1251 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1252 | Class* ClassLinker::FindClass(const char* descriptor, ClassLoader* class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1253 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1254 | Thread* self = Thread::Current(); |
| 1255 | DCHECK(self != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1256 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1257 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1258 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1259 | // for primitive classes that aren't backed by dex files. |
| 1260 | return FindPrimitiveClass(descriptor[0]); |
| 1261 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1262 | // Find the class in the loaded classes table. |
| 1263 | Class* klass = LookupClass(descriptor, class_loader); |
| 1264 | if (klass != NULL) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1265 | return EnsureResolved(self, klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1266 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1267 | // Class is not yet loaded. |
| 1268 | if (descriptor[0] == '[') { |
| 1269 | return CreateArrayClass(descriptor, class_loader); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1270 | |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1271 | } else if (class_loader == NULL) { |
| 1272 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1273 | if (pair.second != NULL) { |
| 1274 | return DefineClass(descriptor, NULL, *pair.first, *pair.second); |
| 1275 | } |
| 1276 | |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1277 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1278 | // first try the boot class path |
| 1279 | Class* system_class = FindSystemClass(descriptor); |
| 1280 | if (system_class != NULL) { |
| 1281 | return system_class; |
| 1282 | } |
| 1283 | CHECK(self->IsExceptionPending()); |
| 1284 | self->ClearException(); |
| 1285 | |
| 1286 | // next try the compile time class path |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1287 | const std::vector<const DexFile*>* class_path; |
| 1288 | { |
| 1289 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1290 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), soa.AddLocalReference<jobject>(class_loader)); |
| 1291 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1292 | } |
| 1293 | |
| 1294 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1295 | if (pair.second != NULL) { |
| 1296 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1297 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1298 | |
| 1299 | } else { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1300 | ScopedObjectAccessUnchecked soa(self->GetJniEnv()); |
| 1301 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
| 1302 | soa.AddLocalReference<jobject>(class_loader)); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1303 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1304 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1305 | { |
| 1306 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1307 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1308 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1309 | if (class_name_object.get() == NULL) { |
| 1310 | return NULL; |
| 1311 | } |
| 1312 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1313 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1314 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1315 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1316 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1317 | if (soa.Env()->ExceptionCheck()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1318 | // If the ClassLoader threw, pass that exception up. |
| 1319 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1320 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1321 | // broken loader - throw NPE to be compatible with Dalvik |
| 1322 | ThrowNullPointerException("ClassLoader.loadClass returned null for %s", |
| 1323 | class_name_string.c_str()); |
| 1324 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1325 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1326 | // success, return Class* |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1327 | return soa.Decode<Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1328 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1329 | } |
| 1330 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1331 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1332 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1333 | } |
| 1334 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1335 | Class* ClassLinker::DefineClass(const StringPiece& descriptor, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1336 | ClassLoader* class_loader, |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1337 | const DexFile& dex_file, |
| 1338 | const DexFile::ClassDef& dex_class_def) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1339 | Thread* self = Thread::Current(); |
| 1340 | SirtRef<Class> klass(self, NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1341 | // Load the class from the dex file. |
| 1342 | if (!init_done_) { |
| 1343 | // finish up init of hand crafted class_roots_ |
| 1344 | if (descriptor == "Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1345 | klass.reset(GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1346 | } else if (descriptor == "Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1347 | klass.reset(GetClassRoot(kJavaLangClass)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1348 | } else if (descriptor == "Ljava/lang/String;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1349 | klass.reset(GetClassRoot(kJavaLangString)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1350 | } else if (descriptor == "Ljava/lang/DexCache;") { |
| 1351 | klass.reset(GetClassRoot(kJavaLangDexCache)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1352 | } else if (descriptor == "Ljava/lang/reflect/Field;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1353 | klass.reset(GetClassRoot(kJavaLangReflectField)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1354 | } else if (descriptor == "Ljava/lang/reflect/AbstractMethod;") { |
| 1355 | klass.reset(GetClassRoot(kJavaLangReflectAbstractMethod)); |
| 1356 | } else if (descriptor == "Ljava/lang/reflect/Constructor;") { |
| 1357 | klass.reset(GetClassRoot(kJavaLangReflectConstructor)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1358 | } else if (descriptor == "Ljava/lang/reflect/Method;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1359 | klass.reset(GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1360 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1361 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1362 | } |
| 1363 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1364 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1365 | } |
| 1366 | klass->SetDexCache(FindDexCache(dex_file)); |
| 1367 | LoadClass(dex_file, dex_class_def, klass, class_loader); |
| 1368 | // Check for a pending exception during load |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1369 | if (self->IsExceptionPending()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 1370 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1371 | return NULL; |
| 1372 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1373 | ObjectLock lock(self, klass.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1374 | klass->SetClinitThreadId(self->GetTid()); |
| 1375 | // Add the newly loaded class to the loaded classes table. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1376 | SirtRef<Class> existing(self, InsertClass(descriptor, klass.get(), false)); |
Brian Carlstrom | 01e076e | 2012-03-30 11:54:16 -0700 | [diff] [blame] | 1377 | if (existing.get() != NULL) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1378 | // We failed to insert because we raced with another thread. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1379 | return EnsureResolved(self, existing.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1380 | } |
| 1381 | // Finish loading (if necessary) by finding parents |
| 1382 | CHECK(!klass->IsLoaded()); |
| 1383 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1384 | // Loading failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1385 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1386 | lock.NotifyAll(); |
| 1387 | return NULL; |
| 1388 | } |
| 1389 | CHECK(klass->IsLoaded()); |
| 1390 | // Link the class (if necessary) |
| 1391 | CHECK(!klass->IsResolved()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1392 | if (!LinkClass(klass, NULL)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1393 | // Linking failed. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1394 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1395 | lock.NotifyAll(); |
| 1396 | return NULL; |
| 1397 | } |
| 1398 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1399 | |
| 1400 | /* |
| 1401 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1402 | * definition of "preparation" is creating the static fields for a |
| 1403 | * class and initializing them to the standard default values, but not |
| 1404 | * executing any code (that comes later, during "initialization"). |
| 1405 | * |
| 1406 | * We did the static preparation in LinkClass. |
| 1407 | * |
| 1408 | * The class has been prepared and resolved but possibly not yet verified |
| 1409 | * at this point. |
| 1410 | */ |
| 1411 | Dbg::PostClassPrepare(klass.get()); |
| 1412 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1413 | return klass.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1414 | } |
| 1415 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1416 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
| 1417 | size_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
| 1418 | const DexFile::ClassDef& dex_class_def) { |
| 1419 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1420 | size_t num_ref = 0; |
| 1421 | size_t num_32 = 0; |
| 1422 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1423 | if (class_data != NULL) { |
| 1424 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1425 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1426 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1427 | char c = descriptor[0]; |
| 1428 | if (c == 'L' || c == '[') { |
| 1429 | num_ref++; |
| 1430 | } else if (c == 'J' || c == 'D') { |
| 1431 | num_64++; |
| 1432 | } else { |
| 1433 | num_32++; |
| 1434 | } |
| 1435 | } |
| 1436 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1437 | // start with generic class data |
| 1438 | size_t size = sizeof(Class); |
| 1439 | // follow with reference fields which must be contiguous at start |
| 1440 | size += (num_ref * sizeof(uint32_t)); |
| 1441 | // if there are 64-bit fields to add, make sure they are aligned |
| 1442 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
| 1443 | if (num_32 != 0) { |
| 1444 | // use an available 32-bit field for padding |
| 1445 | num_32--; |
| 1446 | } |
| 1447 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1448 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1449 | } |
| 1450 | // tack on any 64-bit fields now that alignment is assured |
| 1451 | size += (num_64 * sizeof(uint64_t)); |
| 1452 | // tack on any remaining 32-bit fields |
| 1453 | size += (num_32 * sizeof(uint32_t)); |
| 1454 | return size; |
| 1455 | } |
| 1456 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1457 | const OatFile::OatClass* ClassLinker::GetOatClass(const DexFile& dex_file, const char* descriptor) { |
| 1458 | DCHECK(descriptor != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1459 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 1460 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1461 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
| 1462 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1463 | uint32_t class_def_index; |
| 1464 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
| 1465 | CHECK(found) << dex_file.GetLocation() << " " << descriptor; |
| 1466 | const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_index); |
| 1467 | CHECK(oat_class != NULL) << dex_file.GetLocation() << " " << descriptor; |
| 1468 | return oat_class; |
| 1469 | } |
| 1470 | |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1471 | static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, uint32_t method_idx) { |
| 1472 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 1473 | const DexFile::TypeId& type_id = dex_file.GetTypeId(method_id.class_idx_); |
| 1474 | const DexFile::ClassDef* class_def = dex_file.FindClassDef(dex_file.GetTypeDescriptor(type_id)); |
| 1475 | CHECK(class_def != NULL); |
| 1476 | const byte* class_data = dex_file.GetClassData(*class_def); |
| 1477 | CHECK(class_data != NULL); |
| 1478 | ClassDataItemIterator it(dex_file, class_data); |
| 1479 | // Skip fields |
| 1480 | while (it.HasNextStaticField()) { |
| 1481 | it.Next(); |
| 1482 | } |
| 1483 | while (it.HasNextInstanceField()) { |
| 1484 | it.Next(); |
| 1485 | } |
| 1486 | // Process methods |
| 1487 | size_t class_def_method_index = 0; |
| 1488 | while (it.HasNextDirectMethod()) { |
| 1489 | if (it.GetMemberIndex() == method_idx) { |
| 1490 | return class_def_method_index; |
| 1491 | } |
| 1492 | class_def_method_index++; |
| 1493 | it.Next(); |
| 1494 | } |
| 1495 | while (it.HasNextVirtualMethod()) { |
| 1496 | if (it.GetMemberIndex() == method_idx) { |
| 1497 | return class_def_method_index; |
| 1498 | } |
| 1499 | class_def_method_index++; |
| 1500 | it.Next(); |
| 1501 | } |
| 1502 | DCHECK(!it.HasNext()); |
| 1503 | LOG(FATAL) << "Failed to find method index " << method_idx << " in " << dex_file.GetLocation(); |
| 1504 | return 0; |
| 1505 | } |
| 1506 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1507 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(const AbstractMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1508 | // 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] | 1509 | // method for direct methods (or virtual methods made direct). |
| 1510 | Class* declaring_class = method->GetDeclaringClass(); |
| 1511 | size_t oat_method_index; |
| 1512 | if (method->IsStatic() || method->IsDirect()) { |
| 1513 | // Simple case where the oat method index was stashed at load time. |
| 1514 | oat_method_index = method->GetMethodIndex(); |
| 1515 | } else { |
| 1516 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1517 | // by search for its position in the declared virtual methods. |
| 1518 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1519 | size_t end = declaring_class->NumVirtualMethods(); |
| 1520 | bool found = false; |
| 1521 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1522 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1523 | found = true; |
| 1524 | break; |
| 1525 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1526 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1527 | } |
| 1528 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1529 | } |
| 1530 | ClassHelper kh(declaring_class); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1531 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(kh.GetDexFile(), kh.GetDescriptor())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1532 | CHECK(oat_class.get() != NULL); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1533 | DCHECK_EQ(oat_method_index, |
| 1534 | GetOatMethodIndexFromMethodIndex(*declaring_class->GetDexCache()->GetDexFile(), |
| 1535 | method->GetDexMethodIndex())); |
| 1536 | |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1537 | return oat_class->GetOatMethod(oat_method_index); |
| 1538 | } |
| 1539 | |
| 1540 | // Special case to get oat code without overwriting a trampoline. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1541 | const void* ClassLinker::GetOatCodeFor(const AbstractMethod* method) { |
TDYa127 | ccffd9e | 2012-04-08 14:37:03 -0700 | [diff] [blame] | 1542 | CHECK(Runtime::Current()->IsCompiler() || method->GetDeclaringClass()->IsInitializing()); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1543 | return GetOatMethodFor(method).GetCode(); |
| 1544 | } |
| 1545 | |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1546 | const void* ClassLinker::GetOatCodeFor(const DexFile& dex_file, uint32_t method_idx) { |
| 1547 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 1548 | const char* descriptor = dex_file.GetTypeDescriptor(dex_file.GetTypeId(method_id.class_idx_)); |
| 1549 | uint32_t oat_method_idx = GetOatMethodIndexFromMethodIndex(dex_file, method_idx); |
| 1550 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, descriptor)); |
| 1551 | CHECK(oat_class.get() != NULL); |
| 1552 | return oat_class->GetOatMethod(oat_method_idx).GetCode(); |
| 1553 | } |
| 1554 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1555 | void ClassLinker::FixupStaticTrampolines(Class* klass) { |
| 1556 | ClassHelper kh(klass); |
| 1557 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 1558 | CHECK(dex_class_def != NULL); |
| 1559 | const DexFile& dex_file = kh.GetDexFile(); |
| 1560 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1561 | if (class_data == NULL) { |
| 1562 | return; // no fields or methods - for example a marker interface |
| 1563 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1564 | if (!Runtime::Current()->IsStarted() || Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1565 | // OAT file unavailable |
| 1566 | return; |
| 1567 | } |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1568 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, kh.GetDescriptor())); |
| 1569 | CHECK(oat_class.get() != NULL); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1570 | ClassDataItemIterator it(dex_file, class_data); |
| 1571 | // Skip fields |
| 1572 | while (it.HasNextStaticField()) { |
| 1573 | it.Next(); |
| 1574 | } |
| 1575 | while (it.HasNextInstanceField()) { |
| 1576 | it.Next(); |
| 1577 | } |
| 1578 | size_t method_index = 0; |
| 1579 | // Link the code of methods skipped by LinkCode |
| 1580 | const void* trampoline = Runtime::Current()->GetResolutionStubArray(Runtime::kStaticMethod)->GetData(); |
| 1581 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1582 | AbstractMethod* method = klass->GetDirectMethod(i); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1583 | if (Runtime::Current()->IsMethodTracingActive()) { |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1584 | Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| 1585 | if (instrumentation->GetSavedCodeFromMap(method) == trampoline) { |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1586 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1587 | instrumentation->ResetSavedCode(method); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1588 | method->SetCode(code); |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1589 | instrumentation->SaveAndUpdateCode(method); |
jeffhao | b5e8185 | 2012-03-12 11:15:45 -0700 | [diff] [blame] | 1590 | } |
| 1591 | } else if (method->GetCode() == trampoline) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1592 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 1593 | CHECK(code != NULL) |
| 1594 | << "Resolving a static trampoline but found no code for: " << PrettyMethod(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1595 | method->SetCode(code); |
| 1596 | } |
| 1597 | method_index++; |
| 1598 | } |
| 1599 | } |
| 1600 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1601 | static void LinkCode(SirtRef<AbstractMethod>& method, const OatFile::OatClass* oat_class, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1602 | uint32_t method_index) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1603 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1604 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1605 | // non-abstract methods also get their code pointers. |
| 1606 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1607 | oat_method.LinkMethodPointers(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1608 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1609 | Runtime* runtime = Runtime::Current(); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1610 | if (method->IsAbstract()) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1611 | method->SetCode(runtime->GetAbstractMethodErrorStubArray()->GetData()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1612 | return; |
| 1613 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1614 | |
| 1615 | if (method->IsStatic() && !method->IsConstructor()) { |
| 1616 | // For static methods excluding the class initializer, install the trampoline |
| 1617 | method->SetCode(runtime->GetResolutionStubArray(Runtime::kStaticMethod)->GetData()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 1618 | } |
| 1619 | if (method->IsNative()) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1620 | // unregistering restores the dlsym lookup stub |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1621 | method->UnregisterNative(Thread::Current()); |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1622 | } |
| 1623 | |
| 1624 | if (Runtime::Current()->IsMethodTracingActive()) { |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 1625 | Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| 1626 | instrumentation->SaveAndUpdateCode(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1627 | } |
| 1628 | } |
| 1629 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1630 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1631 | const DexFile::ClassDef& dex_class_def, |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1632 | SirtRef<Class>& klass, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1633 | ClassLoader* class_loader) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1634 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1635 | CHECK(klass->GetDexCache() != NULL); |
| 1636 | CHECK_EQ(Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1637 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1638 | CHECK(descriptor != NULL); |
| 1639 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1640 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1641 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1642 | // Make sure that none of our runtime-only flags are set. |
mikaelpeltier | 6ffd096 | 2012-10-25 15:37:45 +0200 | [diff] [blame] | 1643 | // TODO: JACK CLASS ACCESS (HACK TO BE REMOVED) |
| 1644 | CHECK_EQ(access_flags & ~(kAccJavaFlagsMask | kAccClassJack), 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1645 | klass->SetAccessFlags(access_flags); |
| 1646 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1647 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1648 | klass->SetStatus(Class::kStatusIdx); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1649 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1650 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1651 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1652 | // Load fields fields. |
| 1653 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1654 | if (class_data == NULL) { |
| 1655 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1656 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1657 | ClassDataItemIterator it(dex_file, class_data); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1658 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1659 | if (it.NumStaticFields() != 0) { |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1660 | klass->SetSFields(AllocFieldArray(self, it.NumStaticFields())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1661 | } |
| 1662 | if (it.NumInstanceFields() != 0) { |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1663 | klass->SetIFields(AllocFieldArray(self, it.NumInstanceFields())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1664 | } |
| 1665 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1666 | SirtRef<Field> sfield(self, AllocField(self)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1667 | klass->SetStaticField(i, sfield.get()); |
| 1668 | LoadField(dex_file, it, klass, sfield); |
| 1669 | } |
| 1670 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1671 | SirtRef<Field> ifield(self, AllocField(self)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1672 | klass->SetInstanceField(i, ifield.get()); |
| 1673 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1674 | } |
| 1675 | |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1676 | UniquePtr<const OatFile::OatClass> oat_class; |
| 1677 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
| 1678 | oat_class.reset(GetOatClass(dex_file, descriptor)); |
| 1679 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1680 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1681 | // Load methods. |
| 1682 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1683 | // TODO: append direct methods to class object |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1684 | klass->SetDirectMethods(AllocAbstractMethodArray(self, it.NumDirectMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1685 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1686 | if (it.NumVirtualMethods() != 0) { |
| 1687 | // TODO: append direct methods to class object |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1688 | klass->SetVirtualMethods(AllocMethodArray(self, it.NumVirtualMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1689 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1690 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1691 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1692 | SirtRef<AbstractMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1693 | klass->SetDirectMethod(i, method.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1694 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1695 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1696 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1697 | method->SetMethodIndex(class_def_method_index); |
| 1698 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1699 | } |
| 1700 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1701 | SirtRef<AbstractMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1702 | klass->SetVirtualMethod(i, method.get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1703 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1704 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1705 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1706 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1707 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1708 | } |
| 1709 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1710 | } |
| 1711 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1712 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1713 | SirtRef<Class>& klass, SirtRef<Field>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1714 | uint32_t field_idx = it.GetMemberIndex(); |
| 1715 | dst->SetDexFieldIndex(field_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1716 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1717 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1718 | } |
| 1719 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1720 | AbstractMethod* ClassLinker::LoadMethod(Thread* self, const DexFile& dex_file, |
| 1721 | const ClassDataItemIterator& it, |
| 1722 | SirtRef<Class>& klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1723 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1724 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1725 | StringPiece method_name(dex_file.GetMethodName(method_id)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1726 | |
| 1727 | AbstractMethod* dst = NULL; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1728 | if (method_name == "<init>") { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1729 | dst = AllocConstructor(self); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1730 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1731 | dst = AllocMethod(self); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 1732 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1733 | DCHECK(dst->IsMethod()) << PrettyDescriptor(dst->GetClass()); |
| 1734 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1735 | const char* old_cause = self->StartAssertNoThreadSuspension("LoadMethod"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1736 | dst->SetDexMethodIndex(dex_method_idx); |
| 1737 | dst->SetDeclaringClass(klass.get()); |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1738 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1739 | if (method_name == "finalize") { |
| 1740 | // Create the prototype for a signature of "()V" |
| 1741 | const DexFile::StringId* void_string_id = dex_file.FindStringId("V"); |
| 1742 | if (void_string_id != NULL) { |
| 1743 | const DexFile::TypeId* void_type_id = |
| 1744 | dex_file.FindTypeId(dex_file.GetIndexForStringId(*void_string_id)); |
| 1745 | if (void_type_id != NULL) { |
| 1746 | std::vector<uint16_t> no_args; |
| 1747 | const DexFile::ProtoId* finalizer_proto = |
| 1748 | dex_file.FindProtoId(dex_file.GetIndexForTypeId(*void_type_id), no_args); |
| 1749 | if (finalizer_proto != NULL) { |
| 1750 | // We have the prototype in the dex file |
| 1751 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 1752 | klass->SetFinalizable(); |
| 1753 | } else { |
| 1754 | StringPiece klass_descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 1755 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 1756 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 1757 | // subclasses, so we exclude it here. |
| 1758 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 1759 | // empty. |
| 1760 | if (klass_descriptor != "Ljava/lang/Object;" && |
| 1761 | klass_descriptor != "Ljava/lang/Enum;") { |
| 1762 | klass->SetFinalizable(); |
| 1763 | } |
| 1764 | } |
| 1765 | } |
| 1766 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1767 | } |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 1768 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1769 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1770 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1771 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1772 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1773 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1774 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1775 | dst->SetDexCacheInitializedStaticStorage(klass->GetDexCache()->GetInitializedStaticStorage()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1776 | |
| 1777 | CHECK(dst->IsMethod()); |
| 1778 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1779 | self->EndAssertNoThreadSuspension(old_cause); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1780 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1781 | } |
| 1782 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1783 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1784 | Thread* self = Thread::Current(); |
| 1785 | SirtRef<DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1786 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1787 | } |
| 1788 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1789 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
| 1790 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1791 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1792 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1793 | } |
| 1794 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1795 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1796 | dex_lock_.AssertHeld(Thread::Current()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1797 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1798 | if (dex_caches_[i]->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1799 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1800 | } |
| 1801 | } |
| 1802 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1803 | } |
| 1804 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1805 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1806 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 1807 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1808 | } |
| 1809 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1810 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1811 | dex_lock_.AssertHeld(Thread::Current()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1812 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 1813 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1814 | dex_caches_.push_back(dex_cache.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1815 | dex_cache->SetDexFile(&dex_file); |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 1816 | Dirty(); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1817 | } |
| 1818 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1819 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1820 | Thread* self = Thread::Current(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1821 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1822 | MutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1823 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1824 | return; |
| 1825 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1826 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1827 | // Don't alloc while holding the lock, since allocation may need to |
| 1828 | // suspend all threads and another thread may need the dex_lock_ to |
| 1829 | // get to a suspend point. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1830 | SirtRef<DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1831 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1832 | MutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1833 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1834 | return; |
| 1835 | } |
| 1836 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1837 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1838 | } |
| 1839 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1840 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1841 | MutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1842 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1843 | } |
| 1844 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1845 | DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1846 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 1847 | // Search assuming unique-ness of dex file. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1848 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1849 | DexCache* dex_cache = dex_caches_[i]; |
| 1850 | if (dex_cache->GetDexFile() == &dex_file) { |
| 1851 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1852 | } |
| 1853 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 1854 | // Search matching by location name. |
| 1855 | std::string location(dex_file.GetLocation()); |
| 1856 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1857 | DexCache* dex_cache = dex_caches_[i]; |
| 1858 | if (dex_cache->GetDexFile()->GetLocation() == location) { |
| 1859 | return dex_cache; |
| 1860 | } |
| 1861 | } |
| 1862 | // Failure, dump diagnostic and abort. |
| 1863 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1864 | DexCache* dex_cache = dex_caches_[i]; |
| 1865 | LOG(ERROR) << "Registered dex file " << i << " = " << dex_cache->GetDexFile()->GetLocation(); |
| 1866 | } |
| 1867 | LOG(FATAL) << "Failed to find DexCache for DexFile " << location; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1868 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1869 | } |
| 1870 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1871 | void ClassLinker::FixupDexCaches(AbstractMethod* resolution_method) const { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1872 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1873 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1874 | dex_caches_[i]->Fixup(resolution_method); |
| 1875 | } |
| 1876 | } |
| 1877 | |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1878 | Class* ClassLinker::InitializePrimitiveClass(Class* primitive_class, Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1879 | CHECK(primitive_class != NULL); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1880 | // Must hold lock on object when initializing. |
| 1881 | ObjectLock lock(Thread::Current(), primitive_class); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1882 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1883 | primitive_class->SetPrimitiveType(type); |
| 1884 | primitive_class->SetStatus(Class::kStatusInitialized); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 1885 | Class* existing = InsertClass(Primitive::Descriptor(type), primitive_class, false); |
| 1886 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1887 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 1888 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1889 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1890 | // Create an array class (i.e. the class object for the array, not the |
| 1891 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 1892 | // "[Ljava/lang/String;". |
| 1893 | // |
| 1894 | // If "descriptor" refers to an array of primitives, look up the |
| 1895 | // primitive type's internally-generated class object. |
| 1896 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1897 | // "class_loader" is the class loader of the class that's referring to |
| 1898 | // us. It's used to ensure that we're looking for the element type in |
| 1899 | // the right context. It does NOT become the class loader for the |
| 1900 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1901 | // |
| 1902 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1903 | Class* ClassLinker::CreateArrayClass(const std::string& descriptor, ClassLoader* class_loader) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1904 | CHECK_EQ('[', descriptor[0]); |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1905 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1906 | // Identify the underlying component type |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1907 | Class* component_type = FindClass(descriptor.substr(1).c_str(), class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1908 | if (component_type == NULL) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1909 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1910 | return NULL; |
| 1911 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1912 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1913 | // See if the component type is already loaded. Array classes are |
| 1914 | // always associated with the class loader of their underlying |
| 1915 | // element type -- an array of Strings goes with the loader for |
| 1916 | // java/lang/String -- so we need to look for it there. (The |
| 1917 | // caller should have checked for the existence of the class |
| 1918 | // before calling here, but they did so with *their* class loader, |
| 1919 | // not the component type's loader.) |
| 1920 | // |
| 1921 | // If we find it, the caller adds "loader" to the class' initiating |
| 1922 | // loader list, which should prevent us from going through this again. |
| 1923 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1924 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1925 | // are the same, because our caller (FindClass) just did the |
| 1926 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 1927 | // because we effectively do this lookup again when we add the new |
| 1928 | // class to the hash table --- necessary because of possible races with |
| 1929 | // other threads.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1930 | if (class_loader != component_type->GetClassLoader()) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1931 | Class* new_class = LookupClass(descriptor.c_str(), component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1932 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1933 | return new_class; |
| 1934 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1935 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1936 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1937 | // Fill out the fields in the Class. |
| 1938 | // |
| 1939 | // It is possible to execute some methods against arrays, because |
| 1940 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 1941 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 1942 | // |
| 1943 | // Array classes are simple enough that we don't need to do a full |
| 1944 | // link step. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1945 | Thread* self = Thread::Current(); |
| 1946 | SirtRef<Class> new_class(self, NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1947 | if (!init_done_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1948 | // Classes that were hand created, ie not by FindSystemClass |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1949 | if (descriptor == "[Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1950 | new_class.reset(GetClassRoot(kClassArrayClass)); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1951 | } else if (descriptor == "[Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1952 | new_class.reset(GetClassRoot(kObjectArrayClass)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1953 | } else if (descriptor == class_roots_descriptors_[kJavaLangStringArrayClass]) { |
| 1954 | new_class.reset(GetClassRoot(kJavaLangStringArrayClass)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1955 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectAbstractMethodArrayClass]) { |
| 1956 | new_class.reset(GetClassRoot(kJavaLangReflectAbstractMethodArrayClass)); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 1957 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectFieldArrayClass]) { |
| 1958 | new_class.reset(GetClassRoot(kJavaLangReflectFieldArrayClass)); |
| 1959 | } else if (descriptor == class_roots_descriptors_[kJavaLangReflectMethodArrayClass]) { |
| 1960 | new_class.reset(GetClassRoot(kJavaLangReflectMethodArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1961 | } else if (descriptor == "[C") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1962 | new_class.reset(GetClassRoot(kCharArrayClass)); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1963 | } else if (descriptor == "[I") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1964 | new_class.reset(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1965 | } |
| 1966 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1967 | if (new_class.get() == NULL) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1968 | new_class.reset(AllocClass(self, sizeof(Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1969 | if (new_class.get() == NULL) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1970 | return NULL; |
| 1971 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1972 | new_class->SetComponentType(component_type); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1973 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1974 | 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] | 1975 | DCHECK(new_class->GetComponentType() != NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1976 | Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1977 | new_class->SetSuperClass(java_lang_Object); |
| 1978 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1979 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1980 | new_class->SetClassLoader(component_type->GetClassLoader()); |
| 1981 | new_class->SetStatus(Class::kStatusInitialized); |
| 1982 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1983 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1984 | |
| 1985 | |
| 1986 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 1987 | // interfaces. We need to set that up here, so that stuff like |
| 1988 | // "instanceof" works right. |
| 1989 | // |
| 1990 | // Note: The GC could run during the call to FindSystemClass, |
| 1991 | // so we need to make sure the class object is GC-valid while we're in |
| 1992 | // there. Do this by clearing the interface list so the GC will just |
| 1993 | // think that the entries are null. |
| 1994 | |
| 1995 | |
| 1996 | // Use the single, global copies of "interfaces" and "iftable" |
| 1997 | // (remember not to free them for arrays). |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1998 | CHECK(array_iftable_ != NULL); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1999 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2000 | |
| 2001 | // Inherit access flags from the component type. Arrays can't be |
| 2002 | // used as a superclass or interface, so we want to add "final" |
| 2003 | // and remove "interface". |
| 2004 | // |
| 2005 | // Don't inherit any non-standard flags (e.g., kAccFinal) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2006 | // from component_type. We assume that the array class does not |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2007 | // override finalize(). |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2008 | new_class->SetAccessFlags(((new_class->GetComponentType()->GetAccessFlags() & |
| 2009 | ~kAccInterface) | kAccFinal) & kAccJavaFlagsMask); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2010 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2011 | Class* existing = InsertClass(descriptor, new_class.get(), false); |
| 2012 | if (existing == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2013 | return new_class.get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2014 | } |
| 2015 | // Another thread must have loaded the class after we |
| 2016 | // started but before we finished. Abandon what we've |
| 2017 | // done. |
| 2018 | // |
| 2019 | // (Yes, this happens.) |
| 2020 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2021 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2022 | } |
| 2023 | |
| 2024 | Class* ClassLinker::FindPrimitiveClass(char type) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2025 | switch (Primitive::GetType(type)) { |
| 2026 | case Primitive::kPrimByte: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2027 | return GetClassRoot(kPrimitiveByte); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2028 | case Primitive::kPrimChar: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2029 | return GetClassRoot(kPrimitiveChar); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2030 | case Primitive::kPrimDouble: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2031 | return GetClassRoot(kPrimitiveDouble); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2032 | case Primitive::kPrimFloat: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2033 | return GetClassRoot(kPrimitiveFloat); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2034 | case Primitive::kPrimInt: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2035 | return GetClassRoot(kPrimitiveInt); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2036 | case Primitive::kPrimLong: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2037 | return GetClassRoot(kPrimitiveLong); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2038 | case Primitive::kPrimShort: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2039 | return GetClassRoot(kPrimitiveShort); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2040 | case Primitive::kPrimBoolean: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2041 | return GetClassRoot(kPrimitiveBoolean); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2042 | case Primitive::kPrimVoid: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2043 | return GetClassRoot(kPrimitiveVoid); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2044 | case Primitive::kPrimNot: |
| 2045 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 2046 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2047 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2048 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2049 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2050 | } |
| 2051 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2052 | Class* ClassLinker::InsertClass(const StringPiece& descriptor, Class* klass, bool image_class) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2053 | if (VLOG_IS_ON(class_linker)) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2054 | DexCache* dex_cache = klass->GetDexCache(); |
| 2055 | std::string source; |
| 2056 | if (dex_cache != NULL) { |
| 2057 | source += " from "; |
| 2058 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 2059 | } |
| 2060 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 2061 | } |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 2062 | size_t hash = StringPieceHash()(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2063 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2064 | Table& classes = image_class ? image_classes_ : classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2065 | Class* existing = LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, classes); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2066 | #ifndef NDEBUG |
| 2067 | // Check we don't have the class in the other table in error |
| 2068 | Table& other_classes = image_class ? classes_ : image_classes_; |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2069 | CHECK(LookupClassLocked(descriptor.data(), klass->GetClassLoader(), hash, other_classes) == NULL); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2070 | #endif |
| 2071 | if (existing != NULL) { |
| 2072 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2073 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2074 | classes.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | 9ebae1f | 2012-10-15 17:38:16 -0700 | [diff] [blame] | 2075 | Dirty(); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2076 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2077 | } |
| 2078 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2079 | bool ClassLinker::RemoveClass(const char* descriptor, const ClassLoader* class_loader) { |
| 2080 | size_t hash = Hash(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2081 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | e5448b5 | 2012-01-18 16:44:06 -0800 | [diff] [blame] | 2082 | typedef Table::iterator It; // TODO: C++0x auto |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2083 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2084 | ClassHelper kh; |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2085 | 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] | 2086 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2087 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2088 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2089 | classes_.erase(it); |
| 2090 | return true; |
| 2091 | } |
| 2092 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2093 | 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] | 2094 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2095 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2096 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2097 | image_classes_.erase(it); |
| 2098 | return true; |
| 2099 | } |
| 2100 | } |
| 2101 | return false; |
| 2102 | } |
| 2103 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2104 | Class* ClassLinker::LookupClass(const char* descriptor, const ClassLoader* class_loader) { |
| 2105 | size_t hash = Hash(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2106 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2107 | // TODO: determine if its better to search classes_ or image_classes_ first |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2108 | Class* klass = LookupClassLocked(descriptor, class_loader, hash, classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2109 | if (klass != NULL) { |
| 2110 | return klass; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2111 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2112 | return LookupClassLocked(descriptor, class_loader, hash, image_classes_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2113 | } |
| 2114 | |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 2115 | Class* ClassLinker::LookupClassLocked(const char* descriptor, const ClassLoader* class_loader, |
| 2116 | size_t hash, const Table& classes) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2117 | ClassHelper kh(NULL, this); |
| 2118 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2119 | 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] | 2120 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2121 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2122 | if (strcmp(descriptor, kh.GetDescriptor()) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2123 | #ifndef NDEBUG |
| 2124 | for (++it; it != end && it->first == hash; ++it) { |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2125 | Class* klass2 = it->second; |
| 2126 | kh.ChangeClass(klass2); |
| 2127 | CHECK(!(strcmp(descriptor, kh.GetDescriptor()) == 0 && klass2->GetClassLoader() == class_loader)) |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2128 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
Ian Rogers | d85016c | 2012-02-03 18:27:34 -0800 | [diff] [blame] | 2129 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2130 | } |
| 2131 | #endif |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2132 | return klass; |
| 2133 | } |
| 2134 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2135 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2136 | } |
| 2137 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2138 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<Class*>& classes) { |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2139 | classes.clear(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2140 | size_t hash = Hash(descriptor); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2141 | MutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2142 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 2143 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2144 | ClassHelper kh(NULL, this); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2145 | 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] | 2146 | Class* klass = it->second; |
| 2147 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2148 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2149 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2150 | } |
| 2151 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2152 | 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] | 2153 | Class* klass = it->second; |
| 2154 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2155 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2156 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2157 | } |
| 2158 | } |
| 2159 | } |
| 2160 | |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2161 | void ClassLinker::VerifyClass(Class* klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2162 | // TODO: assert that the monitor on the Class is held |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2163 | Thread* self = Thread::Current(); |
| 2164 | ObjectLock lock(self, klass); |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2165 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2166 | // Don't attempt to re-verify if already sufficiently verified. |
| 2167 | if (klass->IsVerified() || |
| 2168 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2169 | return; |
| 2170 | } |
| 2171 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2172 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2173 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2174 | if (klass->IsErroneous()) { |
| 2175 | ThrowEarlierClassFailure(klass); |
| 2176 | return; |
| 2177 | } |
| 2178 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2179 | if (klass->GetStatus() == Class::kStatusResolved) { |
| 2180 | klass->SetStatus(Class::kStatusVerifying); |
| 2181 | } else { |
| 2182 | CHECK_EQ(klass->GetStatus(), Class::kStatusRetryVerificationAtRuntime) << PrettyClass(klass); |
| 2183 | CHECK(!Runtime::Current()->IsCompiler()); |
| 2184 | klass->SetStatus(Class::kStatusVerifyingAtRuntime); |
| 2185 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2186 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2187 | // Verify super class. |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2188 | Class* super = klass->GetSuperClass(); |
| 2189 | std::string error_msg; |
| 2190 | if (super != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2191 | // Acquire lock to prevent races on verifying the super class. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2192 | ObjectLock lock(self, super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2193 | |
| 2194 | if (!super->IsVerified() && !super->IsErroneous()) { |
| 2195 | Runtime::Current()->GetClassLinker()->VerifyClass(super); |
| 2196 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2197 | if (!super->IsCompileTimeVerified()) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2198 | error_msg = "Rejecting class "; |
| 2199 | error_msg += PrettyDescriptor(klass); |
| 2200 | error_msg += " that attempts to sub-class erroneous class "; |
| 2201 | error_msg += PrettyDescriptor(super); |
| 2202 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2203 | SirtRef<Throwable> cause(self, self->GetException()); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2204 | if (cause.get() != NULL) { |
| 2205 | self->ClearException(); |
| 2206 | } |
| 2207 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2208 | if (cause.get() != NULL) { |
| 2209 | self->GetException()->SetCause(cause.get()); |
| 2210 | } |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2211 | klass->SetStatus(Class::kStatusError); |
| 2212 | return; |
| 2213 | } |
| 2214 | } |
| 2215 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2216 | // 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] | 2217 | const DexFile& dex_file = *klass->GetDexCache()->GetDexFile(); |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2218 | Class::Status oat_file_class_status(Class::kStatusNotReady); |
| 2219 | bool preverified = VerifyClassUsingOatFile(dex_file, klass, oat_file_class_status); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2220 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2221 | if (oat_file_class_status == Class::kStatusError) { |
| 2222 | LOG(WARNING) << "Skipping runtime verification of erroneous class " << PrettyDescriptor(klass) |
| 2223 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
| 2224 | error_msg = "Rejecting class "; |
| 2225 | error_msg += PrettyDescriptor(klass); |
| 2226 | error_msg += " because it failed compile-time verification"; |
| 2227 | Thread::Current()->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
| 2228 | klass->SetStatus(Class::kStatusError); |
| 2229 | return; |
| 2230 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2231 | if (!preverified) { |
| 2232 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass, error_msg); |
| 2233 | } |
| 2234 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2235 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
| 2236 | LOG(WARNING) << "Soft verification failure in class " << PrettyDescriptor(klass) |
| 2237 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2238 | << " because: " << error_msg; |
| 2239 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2240 | self->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2241 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2242 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2243 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
| 2244 | klass->SetStatus(Class::kStatusVerified); |
| 2245 | } else { |
| 2246 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2247 | // Soft failures at compile time should be retried at runtime. Soft |
| 2248 | // failures at runtime will be handled by slow paths in the generated |
| 2249 | // code. Set status accordingly. |
| 2250 | if (Runtime::Current()->IsCompiler()) { |
| 2251 | klass->SetStatus(Class::kStatusRetryVerificationAtRuntime); |
| 2252 | } else { |
| 2253 | klass->SetStatus(Class::kStatusVerified); |
| 2254 | } |
| 2255 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2256 | } else { |
Ian Rogers | 09f6b56 | 2012-01-31 21:58:52 -0800 | [diff] [blame] | 2257 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2258 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2259 | << " because: " << error_msg; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2260 | self->AssertNoPendingException(); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2261 | self->ThrowNewException("Ljava/lang/VerifyError;", error_msg.c_str()); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 2262 | klass->SetStatus(Class::kStatusError); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2263 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2264 | } |
| 2265 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2266 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, Class* klass, |
| 2267 | Class::Status& oat_file_class_status) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2268 | if (!Runtime::Current()->IsStarted()) { |
| 2269 | return false; |
| 2270 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 2271 | if (Runtime::Current()->UseCompileTimeClassPath()) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2272 | return false; |
| 2273 | } |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2274 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 2275 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2276 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2277 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2278 | const char* descriptor = ClassHelper(klass).GetDescriptor(); |
| 2279 | uint32_t class_def_index; |
| 2280 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2281 | CHECK(found) << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2282 | 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] | 2283 | CHECK(oat_class.get() != NULL) |
| 2284 | << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2285 | oat_file_class_status = oat_class->GetStatus(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2286 | if (oat_file_class_status == Class::kStatusVerified || |
| 2287 | oat_file_class_status == Class::kStatusInitialized) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2288 | return true; |
| 2289 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2290 | if (oat_file_class_status == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2291 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2292 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2293 | // class ... { |
| 2294 | // Foo x; |
| 2295 | // .... () { |
| 2296 | // if (...) { |
| 2297 | // v1 gets assigned a type of resolved class Foo |
| 2298 | // } else { |
| 2299 | // v1 gets assigned a type of unresolved class Bar |
| 2300 | // } |
| 2301 | // iput x = v1 |
| 2302 | // } } |
| 2303 | // when we merge v1 following the if-the-else it results in Conflict |
| 2304 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2305 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2306 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2307 | // at compile time). |
| 2308 | return false; |
| 2309 | } |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2310 | if (oat_file_class_status == Class::kStatusError) { |
| 2311 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2312 | // in the class. These errors are unrecoverable. |
| 2313 | return false; |
| 2314 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2315 | if (oat_file_class_status == Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2316 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2317 | // not loading the class. |
| 2318 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2319 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2320 | return false; |
| 2321 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2322 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2323 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " << descriptor; |
| 2324 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2325 | return false; |
| 2326 | } |
| 2327 | |
| 2328 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, Class* klass) { |
| 2329 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 2330 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 2331 | } |
| 2332 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 2333 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 2334 | } |
| 2335 | } |
| 2336 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2337 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, AbstractMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2338 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 2339 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 2340 | if (code_item == NULL) { |
| 2341 | return; // native or abstract method |
| 2342 | } |
| 2343 | if (code_item->tries_size_ == 0) { |
| 2344 | return; // nothing to process |
| 2345 | } |
| 2346 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 2347 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 2348 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 2349 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 2350 | CatchHandlerIterator iterator(handlers_ptr); |
| 2351 | for (; iterator.HasNext(); iterator.Next()) { |
| 2352 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 2353 | // unresolved exception types will be ignored by exception delivery |
| 2354 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
| 2355 | Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
| 2356 | if (exception_type == NULL) { |
| 2357 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2358 | Thread::Current()->ClearException(); |
| 2359 | } |
| 2360 | } |
| 2361 | } |
| 2362 | handlers_ptr = iterator.EndDataPointer(); |
| 2363 | } |
| 2364 | } |
| 2365 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2366 | static void CheckProxyConstructor(AbstractMethod* constructor); |
| 2367 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2368 | |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2369 | Class* ClassLinker::CreateProxyClass(String* name, ObjectArray<Class>* interfaces, |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2370 | ClassLoader* loader, ObjectArray<AbstractMethod>* methods, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2371 | ObjectArray<ObjectArray<Class> >* throws) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2372 | Thread* self = Thread::Current(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2373 | SirtRef<Class> klass(self, AllocClass(self, GetClassRoot(kJavaLangClass), |
| 2374 | sizeof(SynthesizedProxyClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2375 | CHECK(klass.get() != NULL); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2376 | DCHECK(klass->GetClass() != NULL); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2377 | klass->SetObjectSize(sizeof(Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2378 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2379 | klass->SetClassLoader(loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2380 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2381 | klass->SetName(name); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2382 | Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2383 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2384 | |
| 2385 | klass->SetStatus(Class::kStatusIdx); |
| 2386 | |
| 2387 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); |
| 2388 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2389 | // Instance fields are inherited, but we add a couple of static fields... |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2390 | klass->SetSFields(AllocFieldArray(self, 2)); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2391 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 2392 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2393 | SirtRef<Field> interfaces_sfield(self, AllocField(self)); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2394 | klass->SetStaticField(0, interfaces_sfield.get()); |
| 2395 | interfaces_sfield->SetDexFieldIndex(0); |
| 2396 | interfaces_sfield->SetDeclaringClass(klass.get()); |
| 2397 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 2398 | // 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] | 2399 | SirtRef<Field> throws_sfield(self, AllocField(self)); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2400 | klass->SetStaticField(1, throws_sfield.get()); |
| 2401 | throws_sfield->SetDexFieldIndex(1); |
| 2402 | throws_sfield->SetDeclaringClass(klass.get()); |
| 2403 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2404 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2405 | // Proxies have 1 direct method, the constructor |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2406 | klass->SetDirectMethods(AllocAbstractMethodArray(self, 1)); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2407 | klass->SetDirectMethod(0, CreateProxyConstructor(self, klass, proxy_class)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2408 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2409 | // Create virtual method using specified prototypes |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2410 | size_t num_virtual_methods = methods->GetLength(); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2411 | klass->SetVirtualMethods(AllocMethodArray(self, num_virtual_methods)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2412 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2413 | SirtRef<AbstractMethod> prototype(self, methods->Get(i)); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2414 | klass->SetVirtualMethod(i, CreateProxyMethod(self, klass, prototype)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2415 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2416 | |
| 2417 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
| 2418 | klass->SetStatus(Class::kStatusLoaded); // Class is now effectively in the loaded state |
| 2419 | DCHECK(!Thread::Current()->IsExceptionPending()); |
| 2420 | |
| 2421 | // Link the fields and virtual methods, creating vtable and iftables |
| 2422 | if (!LinkClass(klass, interfaces)) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2423 | klass->SetStatus(Class::kStatusError); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2424 | return NULL; |
| 2425 | } |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2426 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2427 | ObjectLock lock(self, klass.get()); // Must hold lock on object when initializing. |
Ian Rogers | 2fa6b2e | 2012-10-17 00:10:17 -0700 | [diff] [blame] | 2428 | interfaces_sfield->SetObject(klass.get(), interfaces); |
| 2429 | throws_sfield->SetObject(klass.get(), throws); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2430 | klass->SetStatus(Class::kStatusInitialized); |
| 2431 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2432 | |
| 2433 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 2434 | if (kIsDebugBuild) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2435 | CHECK(klass->GetIFields() == NULL); |
| 2436 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2437 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2438 | SirtRef<AbstractMethod> prototype(self, methods->Get(i)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2439 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2440 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2441 | |
| 2442 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
| 2443 | name->ToModifiedUtf8().c_str())); |
| 2444 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 2445 | |
| 2446 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
| 2447 | name->ToModifiedUtf8().c_str())); |
| 2448 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2449 | |
| 2450 | SynthesizedProxyClass* synth_proxy_class = down_cast<SynthesizedProxyClass*>(klass.get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2451 | CHECK_EQ(synth_proxy_class->GetInterfaces(), interfaces); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2452 | CHECK_EQ(synth_proxy_class->GetThrows(), throws); |
| 2453 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2454 | return klass.get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2455 | } |
| 2456 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2457 | std::string ClassLinker::GetDescriptorForProxy(const Class* proxy_class) { |
| 2458 | DCHECK(proxy_class->IsProxyClass()); |
| 2459 | String* name = proxy_class->GetName(); |
| 2460 | DCHECK(name != NULL); |
| 2461 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2462 | } |
| 2463 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2464 | AbstractMethod* ClassLinker::FindMethodForProxy(const Class* proxy_class, const AbstractMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2465 | DCHECK(proxy_class->IsProxyClass()); |
| 2466 | DCHECK(proxy_method->IsProxyMethod()); |
| 2467 | // Locate the dex cache of the original interface/Object |
| 2468 | DexCache* dex_cache = NULL; |
| 2469 | { |
| 2470 | ObjectArray<Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2471 | MutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2472 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2473 | if (dex_caches_[i]->GetResolvedTypes() == resolved_types) { |
| 2474 | dex_cache = dex_caches_[i]; |
| 2475 | break; |
| 2476 | } |
| 2477 | } |
| 2478 | } |
| 2479 | CHECK(dex_cache != NULL); |
| 2480 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2481 | AbstractMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2482 | CHECK(resolved_method != NULL); |
| 2483 | return resolved_method; |
| 2484 | } |
| 2485 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2486 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2487 | AbstractMethod* ClassLinker::CreateProxyConstructor(Thread* self, SirtRef<Class>& klass, Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2488 | // Create constructor for Proxy that must initialize h |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2489 | ObjectArray<AbstractMethod>* proxy_direct_methods = proxy_class->GetDirectMethods(); |
Jesse Wilson | ecbce8f | 2011-10-21 19:57:36 -0400 | [diff] [blame] | 2490 | CHECK_EQ(proxy_direct_methods->GetLength(), 15); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2491 | AbstractMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2492 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2493 | // code_ too) |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2494 | AbstractMethod* constructor = down_cast<AbstractMethod*>(proxy_constructor->Clone(self)); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2495 | // Make this constructor public and fix the class to be our Proxy version |
| 2496 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2497 | constructor->SetDeclaringClass(klass.get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2498 | return constructor; |
| 2499 | } |
| 2500 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2501 | static void CheckProxyConstructor(AbstractMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2502 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2503 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2504 | MethodHelper mh(constructor); |
| 2505 | CHECK_STREQ(mh.GetName(), "<init>"); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 2506 | CHECK_EQ(mh.GetSignature(), std::string("(Ljava/lang/reflect/InvocationHandler;)V")); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2507 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2508 | } |
| 2509 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2510 | AbstractMethod* ClassLinker::CreateProxyMethod(Thread* self, SirtRef<Class>& klass, |
| 2511 | SirtRef<AbstractMethod>& prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2512 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 2513 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2514 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
| 2515 | prototype.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2516 | // 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] | 2517 | // as necessary |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2518 | AbstractMethod* method = down_cast<AbstractMethod*>(prototype->Clone(self)); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2519 | |
| 2520 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 2521 | // the intersection of throw exceptions as defined in Proxy |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2522 | method->SetDeclaringClass(klass.get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2523 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2524 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2525 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 2526 | // related parameters from this method. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2527 | AbstractMethod* refs_and_args = Runtime::Current()->GetCalleeSaveMethod(Runtime::kRefsAndArgs); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2528 | method->SetCoreSpillMask(refs_and_args->GetCoreSpillMask()); |
| 2529 | method->SetFpSpillMask(refs_and_args->GetFpSpillMask()); |
| 2530 | method->SetFrameSizeInBytes(refs_and_args->GetFrameSizeInBytes()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2531 | #if !defined(ART_USE_LLVM_COMPILER) |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2532 | method->SetCode(reinterpret_cast<void*>(art_proxy_invoke_handler)); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2533 | #else |
Logan Chien | 7a2a23a | 2012-06-06 11:01:00 +0800 | [diff] [blame] | 2534 | OatFile::OatMethod oat_method = GetOatMethodFor(prototype.get()); |
| 2535 | method->SetCode(oat_method.GetProxyStub()); |
TDYa127 | 5bb8601 | 2012-04-11 05:57:28 -0700 | [diff] [blame] | 2536 | #endif |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2537 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2538 | return method; |
| 2539 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2540 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2541 | static void CheckProxyMethod(AbstractMethod* method, SirtRef<AbstractMethod>& prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2542 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2543 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2544 | CHECK(!prototype->IsFinal()); |
| 2545 | CHECK(method->IsFinal()); |
| 2546 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2547 | |
| 2548 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 2549 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 2550 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 2551 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 2552 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
| 2553 | CHECK_EQ(prototype->GetDexCacheInitializedStaticStorage(), |
| 2554 | method->GetDexCacheInitializedStaticStorage()); |
| 2555 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 2556 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2557 | MethodHelper mh(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2558 | MethodHelper mh2(prototype.get()); |
| 2559 | CHECK_STREQ(mh.GetName(), mh2.GetName()); |
| 2560 | CHECK_STREQ(mh.GetShorty(), mh2.GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2561 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2562 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2563 | } |
| 2564 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2565 | 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] | 2566 | CHECK(klass->IsResolved() || klass->IsErroneous()) |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2567 | << PrettyClass(klass) << ": state=" << klass->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2568 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2569 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2570 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2571 | AbstractMethod* clinit = NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2572 | { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2573 | // 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] | 2574 | ObjectLock lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2575 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2576 | if (klass->GetStatus() == Class::kStatusInitialized) { |
| 2577 | return true; |
| 2578 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2579 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2580 | if (klass->IsErroneous()) { |
| 2581 | ThrowEarlierClassFailure(klass); |
| 2582 | return false; |
| 2583 | } |
| 2584 | |
jeffhao | ebe2e0f | 2012-06-06 15:19:40 -0700 | [diff] [blame] | 2585 | if (klass->GetStatus() == Class::kStatusResolved || |
| 2586 | klass->GetStatus() == Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2587 | VerifyClass(klass); |
| 2588 | if (klass->GetStatus() != Class::kStatusVerified) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 2589 | if (klass->GetStatus() == Class::kStatusError) { |
| 2590 | CHECK(self->IsExceptionPending()); |
| 2591 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2592 | return false; |
| 2593 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2594 | } |
| 2595 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2596 | clinit = klass->FindDeclaredDirectMethod("<clinit>", "()V"); |
| 2597 | if (clinit != NULL && !can_run_clinit) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2598 | // 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] | 2599 | // don't bother going to kStatusInitializing. We return false so that |
| 2600 | // sub-classes don't believe this class is initialized. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2601 | // Opportunistically link non-static methods, TODO: don't initialize and dirty pages |
| 2602 | // in second pass. |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2603 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2604 | } |
| 2605 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2606 | // If the class is kStatusInitializing, either this thread is |
| 2607 | // initializing higher up the stack or another thread has beat us |
| 2608 | // to initializing and we need to wait. Either way, this |
| 2609 | // invocation of InitializeClass will not be responsible for |
| 2610 | // running <clinit> and will return. |
| 2611 | if (klass->GetStatus() == Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 2612 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2613 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2614 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2615 | return true; |
| 2616 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2617 | // No. That's fine. Wait for another thread to finish initializing. |
| 2618 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2619 | } |
| 2620 | |
| 2621 | if (!ValidateSuperClassDescriptors(klass)) { |
| 2622 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2623 | lock.NotifyAll(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2624 | return false; |
| 2625 | } |
| 2626 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2627 | DCHECK_EQ(klass->GetStatus(), Class::kStatusVerified) << PrettyClass(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2628 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2629 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2630 | klass->SetStatus(Class::kStatusInitializing); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2631 | } |
| 2632 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2633 | uint64_t t0 = NanoTime(); |
| 2634 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2635 | if (!InitializeSuperClass(klass, can_run_clinit, can_init_statics)) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2636 | // Super class initialization failed, this can be because we can't run |
| 2637 | // super-class class initializers in which case we'll be verified. |
| 2638 | // Otherwise this class is erroneous. |
| 2639 | if (!can_run_clinit) { |
| 2640 | CHECK(klass->IsVerified()); |
| 2641 | } else { |
| 2642 | CHECK(klass->IsErroneous()); |
| 2643 | } |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2644 | // Signal to any waiting threads that saw this class as initializing. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2645 | ObjectLock lock(self, klass); |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2646 | lock.NotifyAll(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2647 | return false; |
| 2648 | } |
| 2649 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2650 | bool has_static_field_initializers = InitializeStaticFields(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2651 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2652 | if (clinit != NULL) { |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 2653 | if (Runtime::Current()->IsStarted()) { |
| 2654 | clinit->Invoke(self, NULL, NULL, NULL); |
| 2655 | } else { |
| 2656 | art::interpreter::EnterInterpreterFromInvoke(self, clinit, NULL, NULL, NULL); |
| 2657 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2658 | } |
| 2659 | |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2660 | FixupStaticTrampolines(klass); |
| 2661 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2662 | uint64_t t1 = NanoTime(); |
| 2663 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2664 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2665 | { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2666 | ObjectLock lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2667 | |
| 2668 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2669 | WrapExceptionInInitializer(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2670 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2671 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2672 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2673 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 2674 | RuntimeStats* thread_stats = self->GetStats(); |
| 2675 | ++global_stats->class_init_count; |
| 2676 | ++thread_stats->class_init_count; |
| 2677 | global_stats->class_init_time_ns += (t1 - t0); |
| 2678 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2679 | // Set the class as initialized except if we can't initialize static fields and static field |
| 2680 | // initialization is necessary. |
| 2681 | if (!can_init_statics && has_static_field_initializers) { |
| 2682 | klass->SetStatus(Class::kStatusVerified); // Don't leave class in initializing state. |
| 2683 | success = false; |
| 2684 | } else { |
| 2685 | klass->SetStatus(Class::kStatusInitialized); |
| 2686 | } |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2687 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2688 | ClassHelper kh(klass); |
| 2689 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2690 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2691 | } |
| 2692 | lock.NotifyAll(); |
| 2693 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2694 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2695 | } |
| 2696 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2697 | bool ClassLinker::WaitForInitializeClass(Class* klass, Thread* self, ObjectLock& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2698 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2699 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2700 | self->AssertNoPendingException(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2701 | lock.Wait(); |
| 2702 | |
| 2703 | // When we wake up, repeat the test for init-in-progress. If |
| 2704 | // there's an exception pending (only possible if |
| 2705 | // "interruptShouldThrow" was set), bail out. |
| 2706 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2707 | WrapExceptionInInitializer(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2708 | klass->SetStatus(Class::kStatusError); |
| 2709 | return false; |
| 2710 | } |
| 2711 | // Spurious wakeup? Go back to waiting. |
| 2712 | if (klass->GetStatus() == Class::kStatusInitializing) { |
| 2713 | continue; |
| 2714 | } |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 2715 | if (klass->GetStatus() == Class::kStatusVerified && Runtime::Current()->IsCompiler()) { |
| 2716 | // Compile time initialization failed. |
| 2717 | return false; |
| 2718 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2719 | if (klass->IsErroneous()) { |
| 2720 | // The caller wants an exception, but it was thrown in a |
| 2721 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 2722 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2723 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2724 | return false; |
| 2725 | } |
| 2726 | if (klass->IsInitialized()) { |
| 2727 | return true; |
| 2728 | } |
| 2729 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass) << " is " << klass->GetStatus(); |
| 2730 | } |
| 2731 | LOG(FATAL) << "Not Reached" << PrettyClass(klass); |
| 2732 | } |
| 2733 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2734 | bool ClassLinker::ValidateSuperClassDescriptors(const Class* klass) { |
| 2735 | if (klass->IsInterface()) { |
| 2736 | return true; |
| 2737 | } |
| 2738 | // begin with the methods local to the superclass |
| 2739 | if (klass->HasSuperClass() && |
| 2740 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
| 2741 | const Class* super = klass->GetSuperClass(); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2742 | for (int i = super->GetVTable()->GetLength() - 1; i >= 0; --i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2743 | const AbstractMethod* method = klass->GetVTable()->Get(i); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2744 | if (method != super->GetVTable()->Get(i) && |
| 2745 | !IsSameMethodSignatureInDifferentClassContexts(method, super, klass)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2746 | ThrowLinkageError("Class %s method %s resolves differently in superclass %s", |
| 2747 | PrettyDescriptor(klass).c_str(), PrettyMethod(method).c_str(), |
| 2748 | PrettyDescriptor(super).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2749 | return false; |
| 2750 | } |
| 2751 | } |
| 2752 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 2753 | IfTable* iftable = klass->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2754 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 2755 | Class* interface = iftable->GetInterface(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2756 | if (klass->GetClassLoader() != interface->GetClassLoader()) { |
| 2757 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 2758 | const AbstractMethod* method = iftable->GetMethodArray(i)->Get(j); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2759 | if (!IsSameMethodSignatureInDifferentClassContexts(method, interface, |
| 2760 | method->GetDeclaringClass())) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2761 | ThrowLinkageError("Class %s method %s resolves differently in interface %s", |
| 2762 | PrettyDescriptor(method->GetDeclaringClass()).c_str(), |
| 2763 | PrettyMethod(method).c_str(), |
| 2764 | PrettyDescriptor(interface).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2765 | return false; |
| 2766 | } |
| 2767 | } |
| 2768 | } |
| 2769 | } |
| 2770 | return true; |
| 2771 | } |
| 2772 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2773 | // Returns true if classes referenced by the signature of the method are the |
| 2774 | // same classes in klass1 as they are in klass2. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2775 | bool ClassLinker::IsSameMethodSignatureInDifferentClassContexts(const AbstractMethod* method, |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2776 | const Class* klass1, |
| 2777 | const Class* klass2) { |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2778 | if (klass1 == klass2) { |
| 2779 | return true; |
Brian Carlstrom | e10b697 | 2011-09-26 13:49:03 -0700 | [diff] [blame] | 2780 | } |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 2781 | const DexFile& dex_file = *method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2782 | const DexFile::ProtoId& proto_id = |
| 2783 | dex_file.GetMethodPrototype(dex_file.GetMethodId(method->GetDexMethodIndex())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2784 | for (DexFileParameterIterator it(dex_file, proto_id); it.HasNext(); it.Next()) { |
| 2785 | const char* descriptor = it.GetDescriptor(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2786 | if (descriptor == NULL) { |
| 2787 | break; |
| 2788 | } |
| 2789 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 2790 | // Found a non-primitive type. |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2791 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2792 | return false; |
| 2793 | } |
| 2794 | } |
| 2795 | } |
| 2796 | // Check the return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2797 | const char* descriptor = dex_file.GetReturnTypeDescriptor(proto_id); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2798 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2799 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2800 | return false; |
| 2801 | } |
| 2802 | } |
| 2803 | return true; |
| 2804 | } |
| 2805 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2806 | // Returns true if the descriptor resolves to the same class in the context of klass1 and klass2. |
| 2807 | bool ClassLinker::IsSameDescriptorInDifferentClassContexts(const char* descriptor, |
| 2808 | const Class* klass1, |
| 2809 | const Class* klass2) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2810 | CHECK(descriptor != NULL); |
| 2811 | CHECK(klass1 != NULL); |
| 2812 | CHECK(klass2 != NULL); |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2813 | if (klass1 == klass2) { |
| 2814 | return true; |
| 2815 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2816 | Class* found1 = FindClass(descriptor, klass1->GetClassLoader()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2817 | if (found1 == NULL) { |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2818 | Thread::Current()->ClearException(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2819 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2820 | Class* found2 = FindClass(descriptor, klass2->GetClassLoader()); |
| 2821 | if (found2 == NULL) { |
| 2822 | Thread::Current()->ClearException(); |
| 2823 | } |
| 2824 | return found1 == found2; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2825 | } |
| 2826 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2827 | 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] | 2828 | CHECK(klass != NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2829 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 2830 | Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2831 | if (!super_class->IsInitialized()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2832 | CHECK(!super_class->IsInterface()); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2833 | // Must hold lock on object when initializing and setting status. |
| 2834 | ObjectLock lock(Thread::Current(), klass); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2835 | bool super_initialized = InitializeClass(super_class, can_run_clinit, can_init_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2836 | // TODO: check for a pending exception |
| 2837 | if (!super_initialized) { |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2838 | if (!can_run_clinit) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2839 | // Don't set status to error when we can't run <clinit>. |
| 2840 | CHECK_EQ(klass->GetStatus(), Class::kStatusInitializing) << PrettyClass(klass); |
| 2841 | klass->SetStatus(Class::kStatusVerified); |
| 2842 | return false; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2843 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2844 | klass->SetStatus(Class::kStatusError); |
| 2845 | klass->NotifyAll(); |
| 2846 | return false; |
| 2847 | } |
| 2848 | } |
| 2849 | } |
| 2850 | return true; |
| 2851 | } |
| 2852 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2853 | 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] | 2854 | DCHECK(c != NULL); |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2855 | if (c->IsInitialized()) { |
| 2856 | return true; |
| 2857 | } |
| 2858 | |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2859 | Thread* self = Thread::Current(); |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 2860 | ScopedThreadStateChange tsc(self, kRunnable); |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2861 | bool success = InitializeClass(c, can_run_clinit, can_init_fields); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2862 | if (!success) { |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 2863 | CHECK(self->IsExceptionPending() || !can_run_clinit) << PrettyClass(c); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2864 | } |
| 2865 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2866 | } |
| 2867 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2868 | 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] | 2869 | Class* c, SafeMap<uint32_t, Field*>& field_map) { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 2870 | ClassLoader* cl = c->GetClassLoader(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2871 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2872 | ClassDataItemIterator it(dex_file, class_data); |
| 2873 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2874 | 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] | 2875 | } |
| 2876 | } |
| 2877 | |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2878 | bool ClassLinker::InitializeStaticFields(Class* klass) { |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2879 | size_t num_static_fields = klass->NumStaticFields(); |
| 2880 | if (num_static_fields == 0) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2881 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2882 | } |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2883 | DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2884 | // 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] | 2885 | if (dex_cache == NULL) { |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2886 | return false; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2887 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2888 | ClassHelper kh(klass); |
| 2889 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2890 | CHECK(dex_class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2891 | const DexFile& dex_file = kh.GetDexFile(); |
Brian Carlstrom | 88f3654 | 2012-10-16 23:24:21 -0700 | [diff] [blame] | 2892 | EncodedStaticFieldValueIterator it(dex_file, dex_cache, klass->GetClassLoader(), |
| 2893 | this, *dex_class_def); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2894 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2895 | if (it.HasNext()) { |
| 2896 | // 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] | 2897 | SafeMap<uint32_t, Field*> field_map; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2898 | ConstructFieldMap(dex_file, *dex_class_def, klass, field_map); |
| 2899 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 2900 | it.ReadValueToField(field_map.Get(i)); |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2901 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2902 | return true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2903 | } |
Ian Rogers | 0045a29 | 2012-03-31 21:08:41 -0700 | [diff] [blame] | 2904 | return false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2905 | } |
| 2906 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2907 | bool ClassLinker::LinkClass(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2908 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2909 | if (!LinkSuperClass(klass)) { |
| 2910 | return false; |
| 2911 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2912 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2913 | return false; |
| 2914 | } |
| 2915 | if (!LinkInstanceFields(klass)) { |
| 2916 | return false; |
| 2917 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2918 | if (!LinkStaticFields(klass)) { |
| 2919 | return false; |
| 2920 | } |
| 2921 | CreateReferenceInstanceOffsets(klass); |
| 2922 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2923 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
| 2924 | klass->SetStatus(Class::kStatusResolved); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2925 | return true; |
| 2926 | } |
| 2927 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2928 | bool ClassLinker::LoadSuperAndInterfaces(SirtRef<Class>& klass, const DexFile& dex_file) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2929 | CHECK_EQ(Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2930 | StringPiece descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 2931 | const DexFile::ClassDef* class_def = dex_file.FindClassDef(descriptor); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 2932 | CHECK(class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2933 | uint16_t super_class_idx = class_def->superclass_idx_; |
| 2934 | if (super_class_idx != DexFile::kDexNoIndex16) { |
| 2935 | Class* super_class = ResolveType(dex_file, super_class_idx, klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2936 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 2937 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2938 | return false; |
| 2939 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 2940 | // Verify |
| 2941 | if (!klass->CanAccess(super_class)) { |
| 2942 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2943 | "Class %s extended by class %s is inaccessible", |
| 2944 | PrettyDescriptor(super_class).c_str(), |
| 2945 | PrettyDescriptor(klass.get()).c_str()); |
| 2946 | return false; |
| 2947 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2948 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2949 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2950 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(*class_def); |
| 2951 | if (interfaces != NULL) { |
| 2952 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 2953 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
| 2954 | Class* interface = ResolveType(dex_file, idx, klass.get()); |
| 2955 | if (interface == NULL) { |
| 2956 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2957 | return false; |
| 2958 | } |
| 2959 | // Verify |
| 2960 | if (!klass->CanAccess(interface)) { |
| 2961 | // TODO: the RI seemed to ignore this in my testing. |
| 2962 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2963 | "Interface %s implemented by class %s is inaccessible", |
| 2964 | PrettyDescriptor(interface).c_str(), |
| 2965 | PrettyDescriptor(klass.get()).c_str()); |
| 2966 | return false; |
| 2967 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2968 | } |
| 2969 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2970 | // Mark the class as loaded. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2971 | klass->SetStatus(Class::kStatusLoaded); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2972 | return true; |
| 2973 | } |
| 2974 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2975 | bool ClassLinker::LinkSuperClass(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2976 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2977 | Class* super = klass->GetSuperClass(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2978 | if (klass.get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2979 | if (super != NULL) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2980 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/ClassFormatError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2981 | "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2982 | return false; |
| 2983 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2984 | return true; |
| 2985 | } |
| 2986 | if (super == NULL) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2987 | ThrowLinkageError("No superclass defined for class %s", PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2988 | return false; |
| 2989 | } |
| 2990 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2991 | if (super->IsFinal() || super->IsInterface()) { |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 2992 | Thread* self = Thread::Current(); |
| 2993 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2994 | "Superclass %s of %s is %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2995 | PrettyDescriptor(super).c_str(), |
| 2996 | PrettyDescriptor(klass.get()).c_str(), |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2997 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2998 | return false; |
| 2999 | } |
| 3000 | if (!klass->CanAccess(super)) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 3001 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 3002 | "Superclass %s is inaccessible by %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3003 | PrettyDescriptor(super).c_str(), |
| 3004 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3005 | return false; |
| 3006 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 3007 | |
| 3008 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 3009 | if (super->IsFinalizable()) { |
| 3010 | klass->SetFinalizable(); |
| 3011 | } |
| 3012 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3013 | // Inherit reference flags (if any) from the superclass. |
| 3014 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 3015 | if (reference_flags != 0) { |
| 3016 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 3017 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3018 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 3019 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3020 | 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] | 3021 | PrettyDescriptor(klass.get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3022 | return false; |
| 3023 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3024 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3025 | #ifndef NDEBUG |
| 3026 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 3027 | while (super != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3028 | CHECK(super->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3029 | super = super->GetSuperClass(); |
| 3030 | } |
| 3031 | #endif |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3032 | return true; |
| 3033 | } |
| 3034 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3035 | // Populate the class vtable and itable. Compute return type indices. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3036 | bool ClassLinker::LinkMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3037 | if (klass->IsInterface()) { |
| 3038 | // No vtable. |
| 3039 | size_t count = klass->NumVirtualMethods(); |
| 3040 | if (!IsUint(16, count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 3041 | ThrowClassFormatError("Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3042 | return false; |
| 3043 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 3044 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3045 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3046 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 3047 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3048 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3049 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 3050 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3051 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3052 | } |
| 3053 | return true; |
| 3054 | } |
| 3055 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3056 | bool ClassLinker::LinkVirtualMethods(SirtRef<Class>& klass) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3057 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3058 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3059 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 3060 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3061 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3062 | // 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] | 3063 | SirtRef<ObjectArray<AbstractMethod> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3064 | vtable(self, klass->GetSuperClass()->GetVTable()->CopyOf(self, max_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3065 | // See if any of our virtual methods override the superclass. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3066 | MethodHelper local_mh(NULL, this); |
| 3067 | MethodHelper super_mh(NULL, this); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3068 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3069 | AbstractMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3070 | local_mh.ChangeMethod(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3071 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3072 | for (; j < actual_count; ++j) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3073 | AbstractMethod* super_method = vtable->Get(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3074 | super_mh.ChangeMethod(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3075 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
| 3076 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), super_method->GetAccessFlags())) { |
| 3077 | if (super_method->IsFinal()) { |
| 3078 | ThrowLinkageError("Method %s overrides final method in class %s", |
| 3079 | PrettyMethod(local_method).c_str(), |
| 3080 | super_mh.GetDeclaringClassDescriptor()); |
| 3081 | return false; |
| 3082 | } |
| 3083 | vtable->Set(j, local_method); |
| 3084 | local_method->SetMethodIndex(j); |
| 3085 | break; |
| 3086 | } else { |
| 3087 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 3088 | << " would have incorrectly overridden the package-private method in " |
| 3089 | << PrettyDescriptor(super_mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3090 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3091 | } |
| 3092 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3093 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3094 | // Not overriding, append. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3095 | vtable->Set(actual_count, local_method); |
| 3096 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3097 | actual_count += 1; |
| 3098 | } |
| 3099 | } |
| 3100 | if (!IsUint(16, actual_count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 3101 | ThrowClassFormatError("Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3102 | return false; |
| 3103 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3104 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3105 | CHECK_LE(actual_count, max_count); |
| 3106 | if (actual_count < max_count) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3107 | vtable.reset(vtable->CopyOf(self, actual_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3108 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3109 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3110 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3111 | CHECK(klass.get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3112 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3113 | if (!IsUint(16, num_virtual_methods)) { |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 3114 | ThrowClassFormatError("Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3115 | return false; |
| 3116 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3117 | SirtRef<ObjectArray<AbstractMethod> > |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3118 | vtable(self, AllocMethodArray(self, num_virtual_methods)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3119 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3120 | AbstractMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3121 | vtable->Set(i, virtual_method); |
| 3122 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3123 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3124 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3125 | } |
| 3126 | return true; |
| 3127 | } |
| 3128 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3129 | bool ClassLinker::LinkInterfaceMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3130 | size_t super_ifcount; |
| 3131 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3132 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3133 | } else { |
| 3134 | super_ifcount = 0; |
| 3135 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3136 | size_t ifcount = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3137 | ClassHelper kh(klass.get(), this); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3138 | uint32_t num_interfaces = interfaces == NULL ? kh.NumDirectInterfaces() : interfaces->GetLength(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3139 | ifcount += num_interfaces; |
| 3140 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3141 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3142 | ifcount += interface->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3143 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3144 | if (ifcount == 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3145 | // Class implements no interfaces. |
| 3146 | DCHECK_EQ(klass->GetIfTableCount(), 0); |
| 3147 | DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3148 | return true; |
| 3149 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3150 | if (ifcount == super_ifcount) { |
| 3151 | // Class implements same interfaces as parent, are any of these not marker interfaces? |
| 3152 | bool has_non_marker_interface = false; |
| 3153 | IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
| 3154 | for (size_t i = 0; i < ifcount; ++i) { |
| 3155 | if (super_iftable->GetMethodArrayCount(i) > 0) { |
| 3156 | has_non_marker_interface = true; |
| 3157 | break; |
| 3158 | } |
| 3159 | } |
| 3160 | if (!has_non_marker_interface) { |
| 3161 | // Class just inherits marker interfaces from parent so recycle parent's iftable. |
| 3162 | klass->SetIfTable(super_iftable); |
| 3163 | return true; |
| 3164 | } |
| 3165 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3166 | Thread* self = Thread::Current(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3167 | SirtRef<IfTable> iftable(self, AllocIfTable(self, ifcount)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3168 | if (super_ifcount != 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3169 | IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3170 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3171 | Class* super_interface = super_iftable->GetInterface(i); |
| 3172 | iftable->SetInterface(i, super_interface); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3173 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3174 | } |
| 3175 | // Flatten the interface inheritance hierarchy. |
| 3176 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3177 | for (size_t i = 0; i < num_interfaces; i++) { |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 3178 | Class* interface = interfaces == NULL ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3179 | DCHECK(interface != NULL); |
| 3180 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3181 | ClassHelper ih(interface); |
Brian Carlstrom | 4d9716c | 2012-01-30 01:49:33 -0800 | [diff] [blame] | 3182 | self->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3183 | "Class %s implements non-interface class %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3184 | PrettyDescriptor(klass.get()).c_str(), |
| 3185 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3186 | return false; |
| 3187 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3188 | // Check if interface is already in iftable |
| 3189 | bool duplicate = false; |
| 3190 | for (size_t j = 0; j < idx; j++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3191 | Class* existing_interface = iftable->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3192 | if (existing_interface == interface) { |
| 3193 | duplicate = true; |
| 3194 | break; |
| 3195 | } |
| 3196 | } |
| 3197 | if (!duplicate) { |
| 3198 | // Add this non-duplicate interface. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3199 | iftable->SetInterface(idx++, interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3200 | // Add this interface's non-duplicate super-interfaces. |
| 3201 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3202 | Class* super_interface = interface->GetIfTable()->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3203 | bool super_duplicate = false; |
| 3204 | for (size_t k = 0; k < idx; k++) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3205 | Class* existing_interface = iftable->GetInterface(k); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3206 | if (existing_interface == super_interface) { |
| 3207 | super_duplicate = true; |
| 3208 | break; |
| 3209 | } |
| 3210 | } |
| 3211 | if (!super_duplicate) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3212 | iftable->SetInterface(idx++, super_interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3213 | } |
| 3214 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3215 | } |
| 3216 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3217 | // Shrink iftable in case duplicates were found |
| 3218 | if (idx < ifcount) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3219 | iftable.reset(down_cast<IfTable*>(iftable->CopyOf(self, idx * IfTable::kMax))); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3220 | ifcount = idx; |
| 3221 | } else { |
| 3222 | CHECK_EQ(idx, ifcount); |
| 3223 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3224 | klass->SetIfTable(iftable.get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3225 | |
| 3226 | // 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] | 3227 | if (klass->IsInterface()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3228 | return true; |
| 3229 | } |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3230 | std::vector<AbstractMethod*> miranda_list; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3231 | MethodHelper vtable_mh(NULL, this); |
| 3232 | MethodHelper interface_mh(NULL, this); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3233 | for (size_t i = 0; i < ifcount; ++i) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3234 | Class* interface = iftable->GetInterface(i); |
| 3235 | size_t num_methods = interface->NumVirtualMethods(); |
| 3236 | if (num_methods > 0) { |
| 3237 | ObjectArray<AbstractMethod>* method_array = AllocMethodArray(self, num_methods); |
| 3238 | iftable->SetMethodArray(i, method_array); |
| 3239 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
| 3240 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
| 3241 | AbstractMethod* interface_method = interface->GetVirtualMethod(j); |
| 3242 | interface_mh.ChangeMethod(interface_method); |
| 3243 | int32_t k; |
| 3244 | // For each method listed in the interface's method list, find the |
| 3245 | // matching method in our class's method list. We want to favor the |
| 3246 | // subclass over the superclass, which just requires walking |
| 3247 | // back from the end of the vtable. (This only matters if the |
| 3248 | // superclass defines a private method and this class redefines |
| 3249 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 3250 | // those don't end up in the virtual method table, so it shouldn't |
| 3251 | // matter which direction we go. We walk it backward anyway.) |
| 3252 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
| 3253 | AbstractMethod* vtable_method = vtable->Get(k); |
| 3254 | vtable_mh.ChangeMethod(vtable_method); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3255 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3256 | if (!vtable_method->IsPublic()) { |
| 3257 | self->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 3258 | "Implementation not public: %s", |
| 3259 | PrettyMethod(vtable_method).c_str()); |
| 3260 | return false; |
| 3261 | } |
| 3262 | method_array->Set(j, vtable_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3263 | break; |
| 3264 | } |
| 3265 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3266 | if (k < 0) { |
| 3267 | SirtRef<AbstractMethod> miranda_method(self, NULL); |
| 3268 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
| 3269 | AbstractMethod* mir_method = miranda_list[mir]; |
| 3270 | vtable_mh.ChangeMethod(mir_method); |
| 3271 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
| 3272 | miranda_method.reset(miranda_list[mir]); |
| 3273 | break; |
| 3274 | } |
| 3275 | } |
| 3276 | if (miranda_method.get() == NULL) { |
| 3277 | // point the interface table at a phantom slot |
| 3278 | miranda_method.reset(down_cast<AbstractMethod*>(interface_method->Clone(self))); |
| 3279 | miranda_list.push_back(miranda_method.get()); |
| 3280 | } |
| 3281 | method_array->Set(j, miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3282 | } |
| 3283 | } |
| 3284 | } |
| 3285 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3286 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3287 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3288 | int new_method_count = old_method_count + miranda_list.size(); |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 3289 | klass->SetVirtualMethods((old_method_count == 0) |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3290 | ? AllocMethodArray(self, new_method_count) |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3291 | : klass->GetVirtualMethods()->CopyOf(self, new_method_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3292 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3293 | SirtRef<ObjectArray<AbstractMethod> > vtable(self, klass->GetVTableDuringLinking()); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3294 | CHECK(vtable.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3295 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3296 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3297 | vtable.reset(vtable->CopyOf(self, new_vtable_count)); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3298 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3299 | AbstractMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3300 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 3301 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 3302 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 3303 | klass->SetVirtualMethod(old_method_count + i, method); |
| 3304 | vtable->Set(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3305 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3306 | // 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] | 3307 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3308 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3309 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3310 | ObjectArray<AbstractMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3311 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 3312 | CHECK(vtable->Get(i) != NULL); |
| 3313 | } |
| 3314 | |
| 3315 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 3316 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3317 | return true; |
| 3318 | } |
| 3319 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3320 | bool ClassLinker::LinkInstanceFields(SirtRef<Class>& klass) { |
| 3321 | CHECK(klass.get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3322 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3323 | } |
| 3324 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3325 | bool ClassLinker::LinkStaticFields(SirtRef<Class>& klass) { |
| 3326 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3327 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3328 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3329 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3330 | return success; |
| 3331 | } |
| 3332 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3333 | struct LinkFieldsComparator { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3334 | explicit LinkFieldsComparator(FieldHelper* fh) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3335 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3336 | : fh_(fh) {} |
| 3337 | // No thread safety analysis as will be called from STL. Checked lock held in constructor. |
| 3338 | bool operator()(const Field* field1, const Field* field2) NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3339 | // First come reference fields, then 64-bit, and finally 32-bit |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3340 | fh_->ChangeField(field1); |
| 3341 | Primitive::Type type1 = fh_->GetTypeAsPrimitiveType(); |
| 3342 | fh_->ChangeField(field2); |
| 3343 | Primitive::Type type2 = fh_->GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3344 | bool isPrimitive1 = type1 != Primitive::kPrimNot; |
| 3345 | bool isPrimitive2 = type2 != Primitive::kPrimNot; |
| 3346 | bool is64bit1 = isPrimitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 3347 | bool is64bit2 = isPrimitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3348 | int order1 = (!isPrimitive1 ? 0 : (is64bit1 ? 1 : 2)); |
| 3349 | int order2 = (!isPrimitive2 ? 0 : (is64bit2 ? 1 : 2)); |
| 3350 | if (order1 != order2) { |
| 3351 | return order1 < order2; |
| 3352 | } |
| 3353 | |
| 3354 | // same basic group? then sort by string. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3355 | fh_->ChangeField(field1); |
| 3356 | StringPiece name1(fh_->GetName()); |
| 3357 | fh_->ChangeField(field2); |
| 3358 | StringPiece name2(fh_->GetName()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3359 | return name1 < name2; |
| 3360 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3361 | |
| 3362 | FieldHelper* fh_; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3363 | }; |
| 3364 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3365 | bool ClassLinker::LinkFields(SirtRef<Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3366 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3367 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3368 | |
| 3369 | ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3370 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3371 | |
| 3372 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 3373 | size_t size; |
| 3374 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3375 | if (is_static) { |
| 3376 | size = klass->GetClassSize(); |
| 3377 | field_offset = Class::FieldsOffset(); |
| 3378 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3379 | Class* super_class = klass->GetSuperClass(); |
| 3380 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3381 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3382 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3383 | } |
| 3384 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3385 | } |
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 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3388 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3389 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3390 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3391 | std::deque<Field*> grouped_and_sorted_fields; |
| 3392 | for (size_t i = 0; i < num_fields; i++) { |
| 3393 | grouped_and_sorted_fields.push_back(fields->Get(i)); |
| 3394 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3395 | FieldHelper fh(NULL, this); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3396 | std::sort(grouped_and_sorted_fields.begin(), |
| 3397 | grouped_and_sorted_fields.end(), |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3398 | LinkFieldsComparator(&fh)); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3399 | |
| 3400 | // References should be at the front. |
| 3401 | size_t current_field = 0; |
| 3402 | size_t num_reference_fields = 0; |
| 3403 | for (; current_field < num_fields; current_field++) { |
| 3404 | Field* field = grouped_and_sorted_fields.front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3405 | fh.ChangeField(field); |
| 3406 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3407 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3408 | if (isPrimitive) { |
| 3409 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3410 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3411 | grouped_and_sorted_fields.pop_front(); |
| 3412 | num_reference_fields++; |
| 3413 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3414 | field->SetOffset(field_offset); |
| 3415 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3416 | } |
| 3417 | |
| 3418 | // Now we want to pack all of the double-wide fields together. If |
| 3419 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 3420 | // 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] | 3421 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3422 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
| 3423 | Field* field = grouped_and_sorted_fields[i]; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3424 | fh.ChangeField(field); |
| 3425 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3426 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 3427 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3428 | continue; |
| 3429 | } |
| 3430 | fields->Set(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3431 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3432 | // drop the consumed field |
| 3433 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 3434 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3435 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3436 | // whether we found a 32-bit field for padding or not, we advance |
| 3437 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3438 | } |
| 3439 | |
| 3440 | // Alignment is good, shuffle any double-wide fields forward, and |
| 3441 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3442 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3443 | while (!grouped_and_sorted_fields.empty()) { |
| 3444 | Field* field = grouped_and_sorted_fields.front(); |
| 3445 | grouped_and_sorted_fields.pop_front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3446 | fh.ChangeField(field); |
| 3447 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3448 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3449 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3450 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3451 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3452 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3453 | ? sizeof(uint64_t) |
| 3454 | : sizeof(uint32_t))); |
| 3455 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3456 | } |
| 3457 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3458 | // 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] | 3459 | if (!is_static && |
| 3460 | StringPiece(ClassHelper(klass.get(), this).GetDescriptor()) == "Ljava/lang/ref/Reference;") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3461 | // We know there are no non-reference fields in the Reference classes, and we know |
| 3462 | // that 'referent' is alphabetically last, so this is easy... |
| 3463 | CHECK_EQ(num_reference_fields, num_fields); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3464 | fh.ChangeField(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 3465 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3466 | --num_reference_fields; |
| 3467 | } |
| 3468 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3469 | #ifndef NDEBUG |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3470 | // Make sure that all reference fields appear before |
| 3471 | // non-reference fields, and all double-wide fields are aligned. |
| 3472 | bool seen_non_ref = false; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3473 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3474 | Field* field = fields->Get(i); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3475 | if (false) { // enable to debug field layout |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3476 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3477 | << " class=" << PrettyClass(klass.get()) |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3478 | << " field=" << PrettyField(field) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3479 | << " offset=" << field->GetField32(MemberOffset(Field::OffsetOffset()), false); |
| 3480 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3481 | fh.ChangeField(field); |
| 3482 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3483 | bool is_primitive = type != Primitive::kPrimNot; |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 3484 | if (StringPiece(ClassHelper(klass.get(), this).GetDescriptor()) == "Ljava/lang/ref/Reference;" && |
| 3485 | StringPiece(fh.GetName()) == "referent") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3486 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 3487 | } |
| 3488 | if (is_primitive) { |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3489 | if (!seen_non_ref) { |
| 3490 | seen_non_ref = true; |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3491 | DCHECK_EQ(num_reference_fields, i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3492 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3493 | } else { |
| 3494 | DCHECK(!seen_non_ref); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3495 | } |
| 3496 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 3497 | if (!seen_non_ref) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3498 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3499 | } |
| 3500 | #endif |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3501 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3502 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3503 | if (is_static) { |
| 3504 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 3505 | klass->SetClassSize(size); |
| 3506 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3507 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3508 | if (!klass->IsVariableSize()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3509 | klass->SetObjectSize(size); |
| 3510 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3511 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3512 | return true; |
| 3513 | } |
| 3514 | |
| 3515 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 3516 | // list. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3517 | void ClassLinker::CreateReferenceInstanceOffsets(SirtRef<Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3518 | uint32_t reference_offsets = 0; |
| 3519 | Class* super_class = klass->GetSuperClass(); |
| 3520 | if (super_class != NULL) { |
| 3521 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3522 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3523 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 3524 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3525 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3526 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3527 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3528 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3529 | } |
| 3530 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3531 | void ClassLinker::CreateReferenceStaticOffsets(SirtRef<Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3532 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3533 | } |
| 3534 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3535 | void ClassLinker::CreateReferenceOffsets(SirtRef<Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3536 | uint32_t reference_offsets) { |
| 3537 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3538 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 3539 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3540 | const ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3541 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3542 | // All of the fields that contain object references are guaranteed |
| 3543 | // to be at the beginning of the fields list. |
| 3544 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 3545 | // Note that byte_offset is the offset from the beginning of |
| 3546 | // object, not the offset into instance data |
| 3547 | const Field* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3548 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3549 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 3550 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 3551 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3552 | CHECK_NE(new_bit, 0U); |
| 3553 | reference_offsets |= new_bit; |
| 3554 | } else { |
| 3555 | reference_offsets = CLASS_WALK_SUPER; |
| 3556 | break; |
| 3557 | } |
| 3558 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3559 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3560 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3561 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3562 | } else { |
| 3563 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3564 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3565 | } |
| 3566 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3567 | String* ClassLinker::ResolveString(const DexFile& dex_file, |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 3568 | uint32_t string_idx, DexCache* dex_cache) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3569 | DCHECK(dex_cache != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3570 | String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3571 | if (resolved != NULL) { |
| 3572 | return resolved; |
| 3573 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3574 | const DexFile::StringId& string_id = dex_file.GetStringId(string_idx); |
| 3575 | int32_t utf16_length = dex_file.GetStringLength(string_id); |
| 3576 | const char* utf8_data = dex_file.GetStringData(string_id); |
Brian Carlstrom | 928bf02 | 2011-10-11 02:48:14 -0700 | [diff] [blame] | 3577 | String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3578 | dex_cache->SetResolvedString(string_idx, string); |
| 3579 | return string; |
| 3580 | } |
| 3581 | |
| 3582 | Class* ClassLinker::ResolveType(const DexFile& dex_file, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3583 | uint16_t type_idx, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3584 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3585 | ClassLoader* class_loader) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3586 | DCHECK(dex_cache != NULL); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3587 | Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3588 | if (resolved == NULL) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3589 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 3590 | resolved = FindClass(descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3591 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 3592 | // TODO: we used to throw here if resolved's class loader was not the |
| 3593 | // boot class loader. This was to permit different classes with the |
| 3594 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3595 | dex_cache->SetResolvedType(type_idx, resolved); |
| 3596 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 3597 | CHECK(Thread::Current()->IsExceptionPending()) |
| 3598 | << "Expected pending exception for failed resolution of: " << descriptor; |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3599 | // Convert a ClassNotFoundException to a NoClassDefFoundError |
| 3600 | if (Thread::Current()->GetException()->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
| 3601 | Thread::Current()->ClearException(); |
| 3602 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
| 3603 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3604 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3605 | } |
| 3606 | return resolved; |
| 3607 | } |
| 3608 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3609 | AbstractMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3610 | uint32_t method_idx, |
| 3611 | DexCache* dex_cache, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 3612 | ClassLoader* class_loader, |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3613 | const AbstractMethod* referrer, |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3614 | InvokeType type) { |
Brian Carlstrom | 7d77624 | 2012-03-06 23:05:49 -0800 | [diff] [blame] | 3615 | DCHECK(dex_cache != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3616 | // Check for hit in the dex cache. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 3617 | AbstractMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3618 | if (resolved != NULL) { |
| 3619 | return resolved; |
| 3620 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3621 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3622 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 3623 | Class* klass = ResolveType(dex_file, method_id.class_idx_, dex_cache, class_loader); |
| 3624 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 3625 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3626 | return NULL; |
| 3627 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3628 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 3629 | // caches/files. |
| 3630 | switch (type) { |
| 3631 | case kDirect: // Fall-through. |
| 3632 | case kStatic: |
| 3633 | resolved = klass->FindDirectMethod(dex_cache, method_idx); |
| 3634 | break; |
| 3635 | case kInterface: |
| 3636 | resolved = klass->FindInterfaceMethod(dex_cache, method_idx); |
| 3637 | break; |
| 3638 | case kSuper: // Fall-through. |
| 3639 | case kVirtual: |
| 3640 | resolved = klass->FindVirtualMethod(dex_cache, method_idx); |
| 3641 | break; |
| 3642 | default: |
| 3643 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3644 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3645 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3646 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 3647 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3648 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3649 | switch (type) { |
| 3650 | case kDirect: // Fall-through. |
| 3651 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 3652 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 3653 | break; |
| 3654 | case kInterface: |
| 3655 | resolved = klass->FindInterfaceMethod(name, signature); |
| 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 | |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 3879 | void ClassLinker::RelocateExecutable() { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3880 | MutexLock mu(Thread::Current(), dex_lock_); |
Logan Chien | 0c717dd | 2012-03-28 18:31:07 +0800 | [diff] [blame] | 3881 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 3882 | const_cast<OatFile*>(oat_files_[i])->RelocateExecutable(); |
| 3883 | } |
| 3884 | } |
| 3885 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3886 | } // namespace art |