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 | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 22 | #include <deque> |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 23 | #include <memory> |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 24 | #include <string> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 25 | #include <utility> |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 26 | #include <vector> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 27 | |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 28 | #include "base/casts.h" |
Elliott Hughes | 07ed66b | 2012-12-12 18:34:25 -0800 | [diff] [blame] | 29 | #include "base/logging.h" |
Narayan Kamath | d1c606f | 2014-06-09 16:50:19 +0100 | [diff] [blame] | 30 | #include "base/scoped_flock.h" |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 31 | #include "base/stl_util.h" |
Elliott Hughes | 7616005 | 2012-12-12 16:31:20 -0800 | [diff] [blame] | 32 | #include "base/unix_file/fd_file.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 33 | #include "class_linker-inl.h" |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame] | 34 | #include "compiler_callbacks.h" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 35 | #include "debugger.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 36 | #include "dex_file-inl.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 37 | #include "gc/accounting/card_table-inl.h" |
| 38 | #include "gc/accounting/heap_bitmap.h" |
| 39 | #include "gc/heap.h" |
| 40 | #include "gc/space/image_space.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 41 | #include "handle_scope.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 42 | #include "intern_table.h" |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 43 | #include "interpreter/interpreter.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 44 | #include "leb128.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 45 | #include "method_helper.h" |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 46 | #include "oat.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 47 | #include "oat_file.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 48 | #include "object_lock.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 49 | #include "mirror/art_field-inl.h" |
| 50 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 51 | #include "mirror/class.h" |
| 52 | #include "mirror/class-inl.h" |
| 53 | #include "mirror/class_loader.h" |
Ian Rogers | 39ebcb8 | 2013-05-30 16:57:23 -0700 | [diff] [blame] | 54 | #include "mirror/dex_cache-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 55 | #include "mirror/iftable-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 56 | #include "mirror/object-inl.h" |
| 57 | #include "mirror/object_array-inl.h" |
| 58 | #include "mirror/proxy.h" |
Fred Shih | 4ee7a66 | 2014-07-11 09:59:27 -0700 | [diff] [blame] | 59 | #include "mirror/reference-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 60 | #include "mirror/stack_trace_element.h" |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 61 | #include "mirror/string-inl.h" |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 62 | #include "os.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 63 | #include "runtime.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 64 | #include "entrypoints/entrypoint_utils.h" |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 65 | #include "ScopedLocalRef.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 66 | #include "scoped_thread_state_change.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 67 | #include "handle_scope-inl.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 68 | #include "thread.h" |
| 69 | #include "utils.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 70 | #include "verifier/method_verifier.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 71 | #include "well_known_classes.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 72 | |
| 73 | namespace art { |
| 74 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 75 | static void ThrowNoClassDefFoundError(const char* fmt, ...) |
| 76 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 77 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 78 | static void ThrowNoClassDefFoundError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 79 | va_list args; |
| 80 | va_start(args, fmt); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 81 | Thread* self = Thread::Current(); |
| 82 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 83 | self->ThrowNewExceptionV(throw_location, "Ljava/lang/NoClassDefFoundError;", fmt, args); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 84 | va_end(args); |
| 85 | } |
| 86 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 87 | static void ThrowEarlierClassFailure(mirror::Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 88 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 89 | // The class failed to initialize on a previous attempt, so we want to throw |
| 90 | // a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 91 | // failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 92 | // the previous error. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 93 | if (!Runtime::Current()->IsCompiler()) { // Give info if this occurs at runtime. |
| 94 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 95 | } |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 96 | |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 97 | CHECK(c->IsErroneous()) << PrettyClass(c) << " " << c->GetStatus(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 98 | Thread* self = Thread::Current(); |
| 99 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 100 | if (c->GetVerifyErrorClass() != NULL) { |
| 101 | // TODO: change the verifier to store an _instance_, with a useful detail message? |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 102 | self->ThrowNewException(throw_location, c->GetVerifyErrorClass()->GetDescriptor().c_str(), |
| 103 | PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 104 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 105 | self->ThrowNewException(throw_location, "Ljava/lang/NoClassDefFoundError;", |
| 106 | PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 107 | } |
| 108 | } |
| 109 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 110 | static void WrapExceptionInInitializer() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 111 | Thread* self = Thread::Current(); |
| 112 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 113 | |
| 114 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 115 | CHECK(cause.get() != NULL); |
| 116 | |
| 117 | env->ExceptionClear(); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 118 | bool is_error = env->IsInstanceOf(cause.get(), WellKnownClasses::java_lang_Error); |
| 119 | env->Throw(cause.get()); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 120 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 121 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 122 | if (!is_error) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 123 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 124 | self->ThrowNewWrappedException(throw_location, "Ljava/lang/ExceptionInInitializerError;", NULL); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 125 | } |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 126 | } |
| 127 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 128 | static size_t Hash(const char* s) { |
| 129 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 130 | size_t hash = 0; |
| 131 | for (; *s != '\0'; ++s) { |
| 132 | hash = hash * 31 + *s; |
| 133 | } |
| 134 | return hash; |
| 135 | } |
| 136 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 137 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 138 | "Ljava/lang/Class;", |
| 139 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 140 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 141 | "[Ljava/lang/Object;", |
| 142 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 143 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 144 | "Ljava/lang/ref/Reference;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 145 | "Ljava/lang/reflect/ArtField;", |
| 146 | "Ljava/lang/reflect/ArtMethod;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 147 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 148 | "[Ljava/lang/String;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 149 | "[Ljava/lang/reflect/ArtField;", |
| 150 | "[Ljava/lang/reflect/ArtMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 151 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 152 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 153 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 154 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 155 | "Z", |
| 156 | "B", |
| 157 | "C", |
| 158 | "D", |
| 159 | "F", |
| 160 | "I", |
| 161 | "J", |
| 162 | "S", |
| 163 | "V", |
| 164 | "[Z", |
| 165 | "[B", |
| 166 | "[C", |
| 167 | "[D", |
| 168 | "[F", |
| 169 | "[I", |
| 170 | "[J", |
| 171 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 172 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 173 | }; |
| 174 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 175 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 176 | // dex_lock_ is recursive as it may be used in stack dumping. |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 177 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel), |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 178 | dex_cache_image_class_lookup_required_(false), |
| 179 | failed_dex_cache_class_lookups_(0), |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 180 | class_roots_(nullptr), |
| 181 | array_iftable_(nullptr), |
| 182 | find_array_class_cache_next_victim_(0), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 183 | init_done_(false), |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 184 | log_new_dex_caches_roots_(false), |
| 185 | log_new_class_table_roots_(false), |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 186 | intern_table_(intern_table), |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 187 | portable_resolution_trampoline_(nullptr), |
| 188 | quick_resolution_trampoline_(nullptr), |
| 189 | portable_imt_conflict_trampoline_(nullptr), |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 190 | quick_imt_conflict_trampoline_(nullptr), |
Vladimir Marko | 8a63057 | 2014-04-09 18:45:35 +0100 | [diff] [blame] | 191 | quick_generic_jni_trampoline_(nullptr), |
| 192 | quick_to_interpreter_bridge_trampoline_(nullptr) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 193 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 194 | memset(find_array_class_cache_, 0, kFindArrayCacheSize * sizeof(mirror::Class*)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 195 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 196 | |
Dmitry Petrochenko | f0972a4 | 2014-05-16 17:43:39 +0700 | [diff] [blame] | 197 | // To set a value for generic JNI. May be necessary in compiler tests. |
| 198 | extern "C" void art_quick_generic_jni_trampoline(mirror::ArtMethod*); |
| 199 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 200 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 201 | VLOG(startup) << "ClassLinker::Init"; |
| 202 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 203 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 204 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 205 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 206 | // java_lang_Class comes first, it's needed for AllocClass |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 207 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 208 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 209 | // The GC can't handle an object with a null class since we can't get the size of this object. |
Mathieu Chartier | 1d27b34 | 2014-01-28 12:51:09 -0800 | [diff] [blame] | 210 | heap->IncrementDisableMovingGC(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 211 | StackHandleScope<64> hs(self); // 64 is picked arbitrarily. |
| 212 | Handle<mirror::Class> java_lang_Class(hs.NewHandle(down_cast<mirror::Class*>( |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 213 | heap->AllocNonMovableObject<true>(self, nullptr, |
| 214 | mirror::Class::ClassClassSize(), |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 215 | VoidFunctor())))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 216 | CHECK(java_lang_Class.Get() != NULL); |
| 217 | mirror::Class::SetClassClass(java_lang_Class.Get()); |
| 218 | java_lang_Class->SetClass(java_lang_Class.Get()); |
Hiroshi Yamauchi | 624468c | 2014-03-31 15:14:47 -0700 | [diff] [blame] | 219 | if (kUseBakerOrBrooksReadBarrier) { |
| 220 | java_lang_Class->AssertReadBarrierPointer(); |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 221 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 222 | java_lang_Class->SetClassSize(mirror::Class::ClassClassSize()); |
Mathieu Chartier | 1d27b34 | 2014-01-28 12:51:09 -0800 | [diff] [blame] | 223 | heap->DecrementDisableMovingGC(self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 224 | // AllocClass(mirror::Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 225 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 226 | // Class[] is used for reflection support. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 227 | Handle<mirror::Class> class_array_class(hs.NewHandle( |
| 228 | AllocClass(self, java_lang_Class.Get(), mirror::ObjectArray<mirror::Class>::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 229 | class_array_class->SetComponentType(java_lang_Class.Get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 230 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 231 | // java_lang_Object comes next so that object_array_class can be created. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 232 | Handle<mirror::Class> java_lang_Object(hs.NewHandle( |
| 233 | AllocClass(self, java_lang_Class.Get(), mirror::Object::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 234 | CHECK(java_lang_Object.Get() != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 235 | // backfill Object as the super class of Class. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 236 | java_lang_Class->SetSuperClass(java_lang_Object.Get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 237 | java_lang_Object->SetStatus(mirror::Class::kStatusLoaded, self); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 238 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 239 | // Object[] next to hold class roots. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 240 | Handle<mirror::Class> object_array_class(hs.NewHandle( |
| 241 | AllocClass(self, java_lang_Class.Get(), mirror::ObjectArray<mirror::Object>::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 242 | object_array_class->SetComponentType(java_lang_Object.Get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 243 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 244 | // Setup the char (primitive) class to be used for char[]. |
| 245 | Handle<mirror::Class> char_class(hs.NewHandle( |
| 246 | AllocClass(self, java_lang_Class.Get(), mirror::Class::PrimitiveClassSize()))); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 247 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 248 | // Setup the char[] class to be used for String. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 249 | Handle<mirror::Class> char_array_class(hs.NewHandle( |
| 250 | AllocClass(self, java_lang_Class.Get(), |
| 251 | mirror::Array::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 252 | char_array_class->SetComponentType(char_class.Get()); |
| 253 | mirror::CharArray::SetArrayClass(char_array_class.Get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 254 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 255 | // Setup String. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 256 | Handle<mirror::Class> java_lang_String(hs.NewHandle( |
| 257 | AllocClass(self, java_lang_Class.Get(), mirror::String::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 258 | mirror::String::SetClass(java_lang_String.Get()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 259 | java_lang_String->SetObjectSize(mirror::String::InstanceSize()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 260 | java_lang_String->SetStatus(mirror::Class::kStatusResolved, self); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 261 | |
Fred Shih | 4ee7a66 | 2014-07-11 09:59:27 -0700 | [diff] [blame] | 262 | // Setup Reference. |
| 263 | Handle<mirror::Class> java_lang_ref_Reference(hs.NewHandle( |
| 264 | AllocClass(self, java_lang_Class.Get(), mirror::Reference::ClassSize()))); |
| 265 | mirror::Reference::SetClass(java_lang_ref_Reference.Get()); |
| 266 | java_lang_ref_Reference->SetObjectSize(mirror::Reference::InstanceSize()); |
| 267 | java_lang_ref_Reference->SetStatus(mirror::Class::kStatusResolved, self); |
| 268 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 269 | // Create storage for root classes, save away our work so far (requires descriptors). |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 270 | class_roots_ = mirror::ObjectArray<mirror::Class>::Alloc(self, object_array_class.Get(), |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 271 | kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 272 | CHECK(class_roots_ != NULL); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 273 | SetClassRoot(kJavaLangClass, java_lang_Class.Get()); |
| 274 | SetClassRoot(kJavaLangObject, java_lang_Object.Get()); |
| 275 | SetClassRoot(kClassArrayClass, class_array_class.Get()); |
| 276 | SetClassRoot(kObjectArrayClass, object_array_class.Get()); |
| 277 | SetClassRoot(kCharArrayClass, char_array_class.Get()); |
| 278 | SetClassRoot(kJavaLangString, java_lang_String.Get()); |
Fred Shih | 4ee7a66 | 2014-07-11 09:59:27 -0700 | [diff] [blame] | 279 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference.Get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 280 | |
| 281 | // Setup the primitive type classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 282 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(self, Primitive::kPrimBoolean)); |
| 283 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(self, Primitive::kPrimByte)); |
| 284 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(self, Primitive::kPrimShort)); |
| 285 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(self, Primitive::kPrimInt)); |
| 286 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(self, Primitive::kPrimLong)); |
| 287 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(self, Primitive::kPrimFloat)); |
| 288 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(self, Primitive::kPrimDouble)); |
| 289 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(self, Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 290 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 291 | // Create array interface entries to populate once we can load system classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 292 | array_iftable_ = AllocIfTable(self, 2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 293 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 294 | // Create int array type for AllocDexCache (done in AppendToBootClassPath). |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 295 | Handle<mirror::Class> int_array_class(hs.NewHandle( |
| 296 | AllocClass(self, java_lang_Class.Get(), mirror::Array::ClassSize()))); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 297 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 298 | mirror::IntArray::SetArrayClass(int_array_class.Get()); |
| 299 | SetClassRoot(kIntArrayClass, int_array_class.Get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 300 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 301 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 302 | |
Ian Rogers | 52813c9 | 2012-10-11 11:50:38 -0700 | [diff] [blame] | 303 | // Set up DexCache. This cannot be done later since AppendToBootClassPath calls AllocDexCache. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 304 | Handle<mirror::Class> java_lang_DexCache(hs.NewHandle( |
| 305 | AllocClass(self, java_lang_Class.Get(), mirror::DexCache::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 306 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.Get()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 307 | java_lang_DexCache->SetObjectSize(mirror::DexCache::InstanceSize()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 308 | java_lang_DexCache->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 309 | |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 310 | // Constructor, Field, Method, and AbstractMethod are necessary so |
| 311 | // that FindClass can link members. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 312 | Handle<mirror::Class> java_lang_reflect_ArtField(hs.NewHandle( |
| 313 | AllocClass(self, java_lang_Class.Get(), mirror::ArtField::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 314 | CHECK(java_lang_reflect_ArtField.Get() != NULL); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 315 | java_lang_reflect_ArtField->SetObjectSize(mirror::ArtField::InstanceSize()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 316 | SetClassRoot(kJavaLangReflectArtField, java_lang_reflect_ArtField.Get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 317 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusResolved, self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 318 | mirror::ArtField::SetClass(java_lang_reflect_ArtField.Get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 319 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 320 | Handle<mirror::Class> java_lang_reflect_ArtMethod(hs.NewHandle( |
| 321 | AllocClass(self, java_lang_Class.Get(), mirror::ArtMethod::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 322 | CHECK(java_lang_reflect_ArtMethod.Get() != NULL); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 323 | java_lang_reflect_ArtMethod->SetObjectSize(mirror::ArtMethod::InstanceSize()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 324 | SetClassRoot(kJavaLangReflectArtMethod, java_lang_reflect_ArtMethod.Get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 325 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 326 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 327 | mirror::ArtMethod::SetClass(java_lang_reflect_ArtMethod.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 328 | |
| 329 | // Set up array classes for string, field, method |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 330 | Handle<mirror::Class> object_array_string(hs.NewHandle( |
| 331 | AllocClass(self, java_lang_Class.Get(), |
| 332 | mirror::ObjectArray<mirror::String>::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 333 | object_array_string->SetComponentType(java_lang_String.Get()); |
| 334 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 335 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 336 | Handle<mirror::Class> object_array_art_method(hs.NewHandle( |
| 337 | AllocClass(self, java_lang_Class.Get(), |
| 338 | mirror::ObjectArray<mirror::ArtMethod>::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 339 | object_array_art_method->SetComponentType(java_lang_reflect_ArtMethod.Get()); |
| 340 | SetClassRoot(kJavaLangReflectArtMethodArrayClass, object_array_art_method.Get()); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 341 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 342 | Handle<mirror::Class> object_array_art_field(hs.NewHandle( |
| 343 | AllocClass(self, java_lang_Class.Get(), |
| 344 | mirror::ObjectArray<mirror::ArtField>::ClassSize()))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 345 | object_array_art_field->SetComponentType(java_lang_reflect_ArtField.Get()); |
| 346 | SetClassRoot(kJavaLangReflectArtFieldArrayClass, object_array_art_field.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 347 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 348 | // Setup boot_class_path_ and register class_path now that we can use AllocObjectArray to create |
| 349 | // DexCache instances. Needs to be after String, Field, Method arrays since AllocDexCache uses |
| 350 | // these roots. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 351 | CHECK_NE(0U, boot_class_path.size()); |
| 352 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 353 | const DexFile* dex_file = boot_class_path[i]; |
| 354 | CHECK(dex_file != NULL); |
| 355 | AppendToBootClassPath(*dex_file); |
| 356 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 357 | |
| 358 | // now we can use FindSystemClass |
| 359 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 360 | // run char class through InitializePrimitiveClass to finish init |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 361 | InitializePrimitiveClass(char_class.Get(), Primitive::kPrimChar); |
| 362 | SetClassRoot(kPrimitiveChar, char_class.Get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 363 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 364 | // Create runtime resolution and imt conflict methods. Also setup the default imt. |
| 365 | Runtime* runtime = Runtime::Current(); |
| 366 | runtime->SetResolutionMethod(runtime->CreateResolutionMethod()); |
| 367 | runtime->SetImtConflictMethod(runtime->CreateImtConflictMethod()); |
| 368 | runtime->SetDefaultImt(runtime->CreateDefaultImt(this)); |
| 369 | |
Dmitry Petrochenko | f0972a4 | 2014-05-16 17:43:39 +0700 | [diff] [blame] | 370 | // Set up GenericJNI entrypoint. That is mainly a hack for common_compiler_test.h so that |
| 371 | // we do not need friend classes or a publicly exposed setter. |
| 372 | quick_generic_jni_trampoline_ = reinterpret_cast<void*>(art_quick_generic_jni_trampoline); |
| 373 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 374 | // Object, String and DexCache need to be rerun through FindSystemClass to finish init |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 375 | java_lang_Object->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 376 | mirror::Class* Object_class = FindSystemClass(self, "Ljava/lang/Object;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 377 | CHECK_EQ(java_lang_Object.Get(), Object_class); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 378 | CHECK_EQ(java_lang_Object->GetObjectSize(), mirror::Object::InstanceSize()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 379 | java_lang_String->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 380 | mirror::Class* String_class = FindSystemClass(self, "Ljava/lang/String;"); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 381 | std::ostringstream os1, os2; |
| 382 | java_lang_String->DumpClass(os1, mirror::Class::kDumpClassFullDetail); |
| 383 | String_class->DumpClass(os2, mirror::Class::kDumpClassFullDetail); |
| 384 | CHECK_EQ(java_lang_String.Get(), String_class) << os1.str() << "\n\n" << os2.str(); |
| 385 | CHECK_EQ(java_lang_String->GetObjectSize(), mirror::String::InstanceSize()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 386 | java_lang_DexCache->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 387 | mirror::Class* DexCache_class = FindSystemClass(self, "Ljava/lang/DexCache;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 388 | CHECK_EQ(java_lang_String.Get(), String_class); |
| 389 | CHECK_EQ(java_lang_DexCache.Get(), DexCache_class); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 390 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), mirror::DexCache::InstanceSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 391 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 392 | // Setup the primitive array type classes - can't be done until Object has a vtable. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 393 | SetClassRoot(kBooleanArrayClass, FindSystemClass(self, "[Z")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 394 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 395 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 396 | SetClassRoot(kByteArrayClass, FindSystemClass(self, "[B")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 397 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 398 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 399 | mirror::Class* found_char_array_class = FindSystemClass(self, "[C"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 400 | CHECK_EQ(char_array_class.Get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 401 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 402 | SetClassRoot(kShortArrayClass, FindSystemClass(self, "[S")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 403 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 404 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 405 | mirror::Class* found_int_array_class = FindSystemClass(self, "[I"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 406 | CHECK_EQ(int_array_class.Get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 407 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 408 | SetClassRoot(kLongArrayClass, FindSystemClass(self, "[J")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 409 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 410 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 411 | SetClassRoot(kFloatArrayClass, FindSystemClass(self, "[F")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 412 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 413 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 414 | SetClassRoot(kDoubleArrayClass, FindSystemClass(self, "[D")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 415 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 416 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 417 | mirror::Class* found_class_array_class = FindSystemClass(self, "[Ljava/lang/Class;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 418 | CHECK_EQ(class_array_class.Get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 419 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 420 | mirror::Class* found_object_array_class = FindSystemClass(self, "[Ljava/lang/Object;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 421 | CHECK_EQ(object_array_class.Get(), found_object_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 422 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 423 | // Setup the single, global copy of "iftable". |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 424 | mirror::Class* java_lang_Cloneable = FindSystemClass(self, "Ljava/lang/Cloneable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 425 | CHECK(java_lang_Cloneable != NULL); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 426 | mirror::Class* java_io_Serializable = FindSystemClass(self, "Ljava/io/Serializable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 427 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 428 | // We assume that Cloneable/Serializable don't have superinterfaces -- normally we'd have to |
| 429 | // crawl up and explicitly list all of the supers as well. |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 430 | { |
| 431 | mirror::IfTable* array_iftable = |
| 432 | ReadBarrier::BarrierForRoot<mirror::IfTable, kWithReadBarrier>(&array_iftable_); |
| 433 | array_iftable->SetInterface(0, java_lang_Cloneable); |
| 434 | array_iftable->SetInterface(1, java_io_Serializable); |
| 435 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 436 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 437 | // Sanity check Class[] and Object[]'s interfaces. |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 438 | CHECK_EQ(java_lang_Cloneable, mirror::Class::GetDirectInterface(self, class_array_class, 0)); |
| 439 | CHECK_EQ(java_io_Serializable, mirror::Class::GetDirectInterface(self, class_array_class, 1)); |
| 440 | CHECK_EQ(java_lang_Cloneable, mirror::Class::GetDirectInterface(self, object_array_class, 0)); |
| 441 | CHECK_EQ(java_io_Serializable, mirror::Class::GetDirectInterface(self, object_array_class, 1)); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 442 | // Run Class, ArtField, and ArtMethod through FindSystemClass. This initializes their |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 443 | // dex_cache_ fields and register them in class_table_. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 444 | mirror::Class* Class_class = FindSystemClass(self, "Ljava/lang/Class;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 445 | CHECK_EQ(java_lang_Class.Get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 446 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 447 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 448 | mirror::Class* Art_method_class = FindSystemClass(self, "Ljava/lang/reflect/ArtMethod;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 449 | CHECK_EQ(java_lang_reflect_ArtMethod.Get(), Art_method_class); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 450 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 451 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 452 | mirror::Class* Art_field_class = FindSystemClass(self, "Ljava/lang/reflect/ArtField;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 453 | CHECK_EQ(java_lang_reflect_ArtField.Get(), Art_field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 454 | |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 455 | mirror::Class* String_array_class = |
| 456 | FindSystemClass(self, class_roots_descriptors_[kJavaLangStringArrayClass]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 457 | CHECK_EQ(object_array_string.Get(), String_array_class); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 458 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 459 | mirror::Class* Art_method_array_class = |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 460 | FindSystemClass(self, class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 461 | CHECK_EQ(object_array_art_method.Get(), Art_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 462 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 463 | mirror::Class* Art_field_array_class = |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 464 | FindSystemClass(self, class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 465 | CHECK_EQ(object_array_art_field.Get(), Art_field_array_class); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 466 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 467 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 468 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 469 | // Create java.lang.reflect.Proxy root. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 470 | mirror::Class* java_lang_reflect_Proxy = FindSystemClass(self, "Ljava/lang/reflect/Proxy;"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 471 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 472 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 473 | // java.lang.ref classes need to be specially flagged, but otherwise are normal classes |
Fred Shih | 4ee7a66 | 2014-07-11 09:59:27 -0700 | [diff] [blame] | 474 | // finish initializing Reference class |
| 475 | java_lang_ref_Reference->SetStatus(mirror::Class::kStatusNotReady, self); |
| 476 | mirror::Class* Reference_class = FindSystemClass(self, "Ljava/lang/ref/Reference;"); |
| 477 | CHECK_EQ(java_lang_ref_Reference.Get(), Reference_class); |
| 478 | CHECK_EQ(java_lang_ref_Reference->GetObjectSize(), mirror::Reference::InstanceSize()); |
| 479 | CHECK_EQ(java_lang_ref_Reference->GetClassSize(), mirror::Reference::ClassSize()); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 480 | mirror::Class* java_lang_ref_FinalizerReference = |
| 481 | FindSystemClass(self, "Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 482 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 483 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 484 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 485 | mirror::Class* java_lang_ref_PhantomReference = |
| 486 | FindSystemClass(self, "Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 487 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 488 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 489 | kAccClassIsReference | kAccClassIsPhantomReference); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 490 | mirror::Class* java_lang_ref_SoftReference = |
| 491 | FindSystemClass(self, "Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 492 | java_lang_ref_SoftReference->SetAccessFlags( |
| 493 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 494 | mirror::Class* java_lang_ref_WeakReference = |
| 495 | FindSystemClass(self, "Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 496 | java_lang_ref_WeakReference->SetAccessFlags( |
| 497 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 498 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 499 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 500 | // Setup the ClassLoader, verifying the object_size_. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 501 | mirror::Class* java_lang_ClassLoader = FindSystemClass(self, "Ljava/lang/ClassLoader;"); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 502 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), mirror::ClassLoader::InstanceSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 503 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 504 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 505 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 506 | // java.lang.StackTraceElement as a convenience. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 507 | SetClassRoot(kJavaLangThrowable, FindSystemClass(self, "Ljava/lang/Throwable;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 508 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 509 | SetClassRoot(kJavaLangClassNotFoundException, |
| 510 | FindSystemClass(self, "Ljava/lang/ClassNotFoundException;")); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 511 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass(self, "Ljava/lang/StackTraceElement;")); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 512 | SetClassRoot(kJavaLangStackTraceElementArrayClass, |
| 513 | FindSystemClass(self, "[Ljava/lang/StackTraceElement;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 514 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 515 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 516 | FinishInit(self); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 517 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 518 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 519 | } |
| 520 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 521 | void ClassLinker::FinishInit(Thread* self) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 522 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 523 | |
| 524 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 525 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 526 | // as the types of the field can't be resolved prior to the runtime being |
| 527 | // fully initialized |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 528 | mirror::Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 529 | mirror::Class* java_lang_ref_FinalizerReference = |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 530 | FindSystemClass(self, "Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 531 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 532 | mirror::ArtField* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 533 | CHECK_STREQ(pendingNext->GetName(), "pendingNext"); |
| 534 | CHECK_STREQ(pendingNext->GetTypeDescriptor(), "Ljava/lang/ref/Reference;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 535 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 536 | mirror::ArtField* queue = java_lang_ref_Reference->GetInstanceField(1); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 537 | CHECK_STREQ(queue->GetName(), "queue"); |
| 538 | CHECK_STREQ(queue->GetTypeDescriptor(), "Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 539 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 540 | mirror::ArtField* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 541 | CHECK_STREQ(queueNext->GetName(), "queueNext"); |
| 542 | CHECK_STREQ(queueNext->GetTypeDescriptor(), "Ljava/lang/ref/Reference;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 543 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 544 | mirror::ArtField* referent = java_lang_ref_Reference->GetInstanceField(3); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 545 | CHECK_STREQ(referent->GetName(), "referent"); |
| 546 | CHECK_STREQ(referent->GetTypeDescriptor(), "Ljava/lang/Object;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 547 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 548 | mirror::ArtField* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 549 | CHECK_STREQ(zombie->GetName(), "zombie"); |
| 550 | CHECK_STREQ(zombie->GetTypeDescriptor(), "Ljava/lang/Object;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 551 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 552 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 553 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 554 | ClassRoot class_root = static_cast<ClassRoot>(i); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 555 | mirror::Class* klass = GetClassRoot(class_root); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 556 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 557 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 558 | // note SetClassRoot does additional validation. |
| 559 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 560 | } |
| 561 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 562 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 563 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 564 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 565 | // that Object, Class, and Object[] are setup |
| 566 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 567 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 568 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 569 | } |
| 570 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 571 | void ClassLinker::RunRootClinits() { |
| 572 | Thread* self = Thread::Current(); |
| 573 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 574 | mirror::Class* c = GetClassRoot(ClassRoot(i)); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 575 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 576 | StackHandleScope<1> hs(self); |
| 577 | Handle<mirror::Class> h_class(hs.NewHandle(GetClassRoot(ClassRoot(i)))); |
| 578 | EnsureInitialized(h_class, true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 579 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 580 | } |
| 581 | } |
| 582 | } |
| 583 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 584 | bool ClassLinker::GenerateOatFile(const char* dex_filename, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 585 | int oat_fd, |
Vladimir Marko | 60836d5 | 2014-01-16 15:53:38 +0000 | [diff] [blame] | 586 | const char* oat_cache_filename, |
| 587 | std::string* error_msg) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 588 | Locks::mutator_lock_->AssertNotHeld(Thread::Current()); // Avoid starving GC. |
Tsu Chiang Chuang | 12e6d74 | 2014-05-22 10:22:25 -0700 | [diff] [blame] | 589 | std::string dex2oat(Runtime::Current()->GetCompilerExecutable()); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 590 | |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 591 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 592 | std::string boot_image_option("--boot-image="); |
Brian Carlstrom | 0e12bdc | 2014-05-14 17:44:28 -0700 | [diff] [blame] | 593 | boot_image_option += heap->GetImageSpace()->GetImageLocation(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 594 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 595 | std::string dex_file_option("--dex-file="); |
| 596 | dex_file_option += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 597 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 598 | std::string oat_fd_option("--oat-fd="); |
| 599 | StringAppendF(&oat_fd_option, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 600 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 601 | std::string oat_location_option("--oat-location="); |
| 602 | oat_location_option += oat_cache_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 603 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 604 | std::vector<std::string> argv; |
| 605 | argv.push_back(dex2oat); |
| 606 | argv.push_back("--runtime-arg"); |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 607 | argv.push_back("-classpath"); |
| 608 | argv.push_back("--runtime-arg"); |
Brian Carlstrom | 35d8b8e | 2014-02-25 10:51:11 -0800 | [diff] [blame] | 609 | argv.push_back(Runtime::Current()->GetClassPathString()); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 610 | |
Ian Rogers | 8afeb85 | 2014-04-02 14:55:49 -0700 | [diff] [blame] | 611 | Runtime::Current()->AddCurrentRuntimeFeaturesAsDex2OatArguments(&argv); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 612 | |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 613 | if (!Runtime::Current()->IsVerificationEnabled()) { |
| 614 | argv.push_back("--compiler-filter=verify-none"); |
| 615 | } |
| 616 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 617 | if (!kIsTargetBuild) { |
| 618 | argv.push_back("--host"); |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 619 | } |
Ian Rogers | 8afeb85 | 2014-04-02 14:55:49 -0700 | [diff] [blame] | 620 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 621 | argv.push_back(boot_image_option); |
| 622 | argv.push_back(dex_file_option); |
| 623 | argv.push_back(oat_fd_option); |
| 624 | argv.push_back(oat_location_option); |
| 625 | const std::vector<std::string>& compiler_options = Runtime::Current()->GetCompilerOptions(); |
Brian Carlstrom | 2ec6520 | 2014-03-03 15:16:37 -0800 | [diff] [blame] | 626 | for (size_t i = 0; i < compiler_options.size(); ++i) { |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 627 | argv.push_back(compiler_options[i].c_str()); |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 628 | } |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 629 | |
| 630 | return Exec(argv, error_msg); |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 631 | } |
| 632 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 633 | const OatFile* ClassLinker::RegisterOatFile(const OatFile* oat_file) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 634 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0d6adac | 2014-02-05 17:39:16 -0800 | [diff] [blame] | 635 | if (kIsDebugBuild) { |
| 636 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 637 | CHECK_NE(oat_file, oat_files_[i]) << oat_file->GetLocation(); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 638 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 639 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 640 | VLOG(class_linker) << "Registering " << oat_file->GetLocation(); |
| 641 | oat_files_.push_back(oat_file); |
| 642 | return oat_file; |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 643 | } |
| 644 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 645 | OatFile& ClassLinker::GetImageOatFile(gc::space::ImageSpace* space) { |
| 646 | VLOG(startup) << "ClassLinker::GetImageOatFile entering"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 647 | OatFile* oat_file = space->ReleaseOatFile(); |
| 648 | CHECK_EQ(RegisterOatFile(oat_file), oat_file); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 649 | VLOG(startup) << "ClassLinker::GetImageOatFile exiting"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 650 | return *oat_file; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 651 | } |
| 652 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 653 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 654 | const char* dex_location = dex_file.GetLocation().c_str(); |
| 655 | uint32_t dex_location_checksum = dex_file.GetLocationChecksum(); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 656 | return FindOpenedOatFile(nullptr, dex_location, &dex_location_checksum); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 657 | } |
| 658 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 659 | const OatFile* ClassLinker::FindOpenedOatFile(const char* oat_location, const char* dex_location, |
| 660 | const uint32_t* const dex_location_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 661 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 662 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 663 | const OatFile* oat_file = oat_files_[i]; |
| 664 | DCHECK(oat_file != NULL); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 665 | |
| 666 | if (oat_location != nullptr) { |
| 667 | if (oat_file->GetLocation() != oat_location) { |
| 668 | continue; |
| 669 | } |
| 670 | } |
| 671 | |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 672 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 673 | dex_location_checksum, |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 674 | false); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 675 | if (oat_dex_file != NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 676 | return oat_file; |
| 677 | } |
| 678 | } |
| 679 | return NULL; |
| 680 | } |
| 681 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 682 | static std::string GetMultiDexClassesDexName(size_t number, const char* dex_location) { |
| 683 | if (number == 0) { |
| 684 | return dex_location; |
| 685 | } else { |
| 686 | return StringPrintf("%s" kMultiDexSeparatorString "classes%zu.dex", dex_location, number + 1); |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | static bool LoadMultiDexFilesFromOatFile(const OatFile* oat_file, const char* dex_location, |
| 691 | bool generated, |
| 692 | std::vector<std::string>* error_msgs, |
| 693 | std::vector<const DexFile*>* dex_files) { |
| 694 | if (oat_file == nullptr) { |
| 695 | return false; |
| 696 | } |
| 697 | |
| 698 | size_t old_size = dex_files->size(); // To rollback on error. |
| 699 | |
| 700 | bool success = true; |
| 701 | for (size_t i = 0; success; ++i) { |
| 702 | std::string next_name_str = GetMultiDexClassesDexName(i, dex_location); |
| 703 | const char* next_name = next_name_str.c_str(); |
| 704 | |
| 705 | uint32_t dex_location_checksum; |
| 706 | uint32_t* dex_location_checksum_pointer = &dex_location_checksum; |
| 707 | std::string error_msg; |
| 708 | if (!DexFile::GetChecksum(next_name, dex_location_checksum_pointer, &error_msg)) { |
| 709 | DCHECK_EQ(false, i == 0 && generated); |
| 710 | dex_location_checksum_pointer = nullptr; |
| 711 | } |
| 712 | |
| 713 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(next_name, nullptr, false); |
| 714 | |
| 715 | if (oat_dex_file == nullptr) { |
| 716 | if (i == 0 && generated) { |
| 717 | std::string error_msg; |
| 718 | error_msg = StringPrintf("\nFailed to find dex file '%s' (checksum 0x%x) in generated out " |
| 719 | " file'%s'", dex_location, dex_location_checksum, |
| 720 | oat_file->GetLocation().c_str()); |
| 721 | error_msgs->push_back(error_msg); |
| 722 | } |
| 723 | break; // Not found, done. |
| 724 | } |
| 725 | |
| 726 | // Checksum test. Test must succeed when generated. |
| 727 | success = !generated; |
| 728 | if (dex_location_checksum_pointer != nullptr) { |
| 729 | success = dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum(); |
| 730 | } |
| 731 | |
| 732 | if (success) { |
| 733 | const DexFile* dex_file = oat_dex_file->OpenDexFile(&error_msg); |
| 734 | if (dex_file == nullptr) { |
| 735 | success = false; |
| 736 | error_msgs->push_back(error_msg); |
| 737 | } else { |
| 738 | dex_files->push_back(dex_file); |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | // When we generated the file, we expect success, or something is terribly wrong. |
| 743 | CHECK_EQ(false, generated && !success) |
| 744 | << "dex_location=" << next_name << " oat_location=" << oat_file->GetLocation().c_str() |
| 745 | << std::hex << " dex_location_checksum=" << dex_location_checksum |
| 746 | << " OatDexFile::GetLocationChecksum()=" << oat_dex_file->GetDexFileLocationChecksum(); |
| 747 | } |
| 748 | |
| 749 | if (dex_files->size() == old_size) { |
| 750 | success = false; // We did not even find classes.dex |
| 751 | } |
| 752 | |
| 753 | if (success) { |
| 754 | return true; |
| 755 | } else { |
| 756 | // Free all the dex files we have loaded. |
| 757 | auto it = dex_files->begin() + old_size; |
| 758 | auto it_end = dex_files->end(); |
| 759 | for (; it != it_end; it++) { |
| 760 | delete *it; |
| 761 | } |
| 762 | dex_files->erase(dex_files->begin() + old_size, it_end); |
| 763 | |
| 764 | return false; |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | // Multidex files make it possible that some, but not all, dex files can be broken/outdated. This |
| 769 | // complicates the loading process, as we should not use an iterative loading process, because that |
| 770 | // would register the oat file and dex files that come before the broken one. Instead, check all |
| 771 | // multidex ahead of time. |
| 772 | bool ClassLinker::OpenDexFilesFromOat(const char* dex_location, const char* oat_location, |
| 773 | std::vector<std::string>* error_msgs, |
| 774 | std::vector<const DexFile*>* dex_files) { |
| 775 | // 1) Check whether we have an open oat file. |
| 776 | // This requires a dex checksum, use the "primary" one. |
| 777 | uint32_t dex_location_checksum; |
| 778 | uint32_t* dex_location_checksum_pointer = &dex_location_checksum; |
| 779 | bool have_checksum = true; |
| 780 | std::string checksum_error_msg; |
| 781 | if (!DexFile::GetChecksum(dex_location, dex_location_checksum_pointer, &checksum_error_msg)) { |
| 782 | dex_location_checksum_pointer = nullptr; |
| 783 | have_checksum = false; |
| 784 | } |
| 785 | |
| 786 | bool needs_registering = false; |
| 787 | |
| 788 | std::unique_ptr<const OatFile> open_oat_file(FindOpenedOatFile(oat_location, dex_location, |
| 789 | dex_location_checksum_pointer)); |
| 790 | |
| 791 | // 2) If we do not have an open one, maybe there's one on disk already. |
| 792 | |
| 793 | // In case the oat file is not open, we play a locking game here so |
| 794 | // that if two different processes race to load and register or generate |
| 795 | // (or worse, one tries to open a partial generated file) we will be okay. |
| 796 | // This is actually common with apps that use DexClassLoader to work |
| 797 | // around the dex method reference limit and that have a background |
| 798 | // service running in a separate process. |
| 799 | ScopedFlock scoped_flock; |
| 800 | |
| 801 | if (open_oat_file.get() == nullptr) { |
| 802 | if (oat_location != nullptr) { |
| 803 | // Can only do this if we have a checksum, else error. |
| 804 | if (!have_checksum) { |
| 805 | error_msgs->push_back(checksum_error_msg); |
| 806 | return false; |
| 807 | } |
| 808 | |
| 809 | std::string error_msg; |
| 810 | |
| 811 | // We are loading or creating one in the future. Time to set up the file lock. |
| 812 | if (!scoped_flock.Init(oat_location, &error_msg)) { |
| 813 | error_msgs->push_back(error_msg); |
| 814 | return false; |
| 815 | } |
| 816 | |
| 817 | open_oat_file.reset(FindOatFileInOatLocationForDexFile(dex_location, dex_location_checksum, |
| 818 | oat_location, &error_msg)); |
| 819 | |
| 820 | if (open_oat_file.get() == nullptr) { |
| 821 | std::string compound_msg = StringPrintf("Failed to find dex file '%s' in oat location '%s': %s", |
| 822 | dex_location, oat_location, error_msg.c_str()); |
| 823 | VLOG(class_linker) << compound_msg; |
| 824 | error_msgs->push_back(compound_msg); |
| 825 | } |
| 826 | } else { |
| 827 | // TODO: What to lock here? |
Calin Juravle | c54aea7 | 2014-07-16 14:45:03 +0100 | [diff] [blame] | 828 | bool obsolete_file_cleanup_failed; |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 829 | open_oat_file.reset(FindOatFileContainingDexFileFromDexLocation(dex_location, |
| 830 | dex_location_checksum_pointer, |
Calin Juravle | c54aea7 | 2014-07-16 14:45:03 +0100 | [diff] [blame] | 831 | kRuntimeISA, error_msgs, |
| 832 | &obsolete_file_cleanup_failed)); |
| 833 | // There's no point in going forward and eventually try to regenerate the |
| 834 | // file if we couldn't remove the obsolete one. Mostly likely we will fail |
| 835 | // with the same error when trying to write the new file. |
Calin Juravle | c54aea7 | 2014-07-16 14:45:03 +0100 | [diff] [blame] | 836 | // TODO: should we maybe do this only when we get permission issues? (i.e. EACCESS). |
| 837 | if (obsolete_file_cleanup_failed) { |
| 838 | return false; |
| 839 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 840 | } |
| 841 | needs_registering = true; |
| 842 | } |
| 843 | |
| 844 | // 3) If we have an oat file, check all contained multidex files for our dex_location. |
| 845 | // Note: LoadMultiDexFilesFromOatFile will check for nullptr in the first argument. |
| 846 | bool success = LoadMultiDexFilesFromOatFile(open_oat_file.get(), dex_location, false, error_msgs, |
| 847 | dex_files); |
| 848 | if (success) { |
| 849 | const OatFile* oat_file = open_oat_file.release(); // Avoid deleting it. |
| 850 | if (needs_registering) { |
| 851 | // We opened the oat file, so we must register it. |
| 852 | RegisterOatFile(oat_file); |
| 853 | } |
| 854 | return true; |
| 855 | } else { |
| 856 | if (needs_registering) { |
| 857 | // We opened it, delete it. |
| 858 | open_oat_file.reset(); |
| 859 | } else { |
| 860 | open_oat_file.release(); // Do not delete open oat files. |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | // 4) If it's not the case (either no oat file or mismatches), regenerate and load. |
| 865 | |
| 866 | // Need a checksum, fail else. |
| 867 | if (!have_checksum) { |
| 868 | error_msgs->push_back(checksum_error_msg); |
| 869 | return false; |
| 870 | } |
| 871 | |
| 872 | // Look in cache location if no oat_location is given. |
| 873 | std::string cache_location; |
| 874 | if (oat_location == nullptr) { |
| 875 | // Use the dalvik cache. |
| 876 | const std::string dalvik_cache(GetDalvikCacheOrDie(GetInstructionSetString(kRuntimeISA))); |
| 877 | cache_location = GetDalvikCacheFilenameOrDie(dex_location, dalvik_cache.c_str()); |
| 878 | oat_location = cache_location.c_str(); |
| 879 | } |
| 880 | |
| 881 | // Definitely need to lock now. |
| 882 | if (!scoped_flock.HasFile()) { |
| 883 | std::string error_msg; |
| 884 | if (!scoped_flock.Init(oat_location, &error_msg)) { |
| 885 | error_msgs->push_back(error_msg); |
| 886 | return false; |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | // Create the oat file. |
| 891 | open_oat_file.reset(CreateOatFileForDexLocation(dex_location, scoped_flock.GetFile()->Fd(), |
| 892 | oat_location, error_msgs)); |
| 893 | |
| 894 | // Failed, bail. |
| 895 | if (open_oat_file.get() == nullptr) { |
| 896 | return false; |
| 897 | } |
| 898 | |
| 899 | // Try to load again, but stronger checks. |
| 900 | success = LoadMultiDexFilesFromOatFile(open_oat_file.get(), dex_location, true, error_msgs, |
| 901 | dex_files); |
| 902 | if (success) { |
| 903 | RegisterOatFile(open_oat_file.release()); |
| 904 | return true; |
| 905 | } else { |
| 906 | return false; |
| 907 | } |
| 908 | } |
| 909 | |
| 910 | const OatFile* ClassLinker::FindOatFileInOatLocationForDexFile(const char* dex_location, |
| 911 | uint32_t dex_location_checksum, |
| 912 | const char* oat_location, |
| 913 | std::string* error_msg) { |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 914 | std::unique_ptr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 915 | !Runtime::Current()->IsCompiler(), |
| 916 | error_msg)); |
| 917 | if (oat_file.get() == nullptr) { |
| 918 | *error_msg = StringPrintf("Failed to find existing oat file at %s: %s", oat_location, |
| 919 | error_msg->c_str()); |
| 920 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 921 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 922 | Runtime* runtime = Runtime::Current(); |
| 923 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 924 | uint32_t expected_image_oat_checksum = image_header.GetOatChecksum(); |
| 925 | uint32_t actual_image_oat_checksum = oat_file->GetOatHeader().GetImageFileLocationOatChecksum(); |
| 926 | if (expected_image_oat_checksum != actual_image_oat_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 927 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat checksum of " |
| 928 | "0x%x, found 0x%x", oat_location, expected_image_oat_checksum, |
| 929 | actual_image_oat_checksum); |
| 930 | return nullptr; |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 931 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 932 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 933 | uintptr_t expected_image_oat_offset = reinterpret_cast<uintptr_t>(image_header.GetOatDataBegin()); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 934 | uint32_t actual_image_oat_offset = oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(); |
| 935 | if (expected_image_oat_offset != actual_image_oat_offset) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 936 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat offset %" |
| 937 | PRIuPTR ", found %ud", oat_location, expected_image_oat_offset, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 938 | actual_image_oat_offset); |
| 939 | return nullptr; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 940 | } |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 941 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
| 942 | &dex_location_checksum); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 943 | if (oat_dex_file == nullptr) { |
| 944 | *error_msg = StringPrintf("Failed to find oat file at '%s' containing '%s'", oat_location, |
| 945 | dex_location); |
| 946 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 947 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 948 | uint32_t expected_dex_checksum = dex_location_checksum; |
| 949 | uint32_t actual_dex_checksum = oat_dex_file->GetDexFileLocationChecksum(); |
| 950 | if (expected_dex_checksum != actual_dex_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 951 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected dex checksum of 0x%x, " |
| 952 | "found 0x%x", oat_location, expected_dex_checksum, |
| 953 | actual_dex_checksum); |
| 954 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 955 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 956 | std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(error_msg)); |
| 957 | if (dex_file.get() != nullptr) { |
| 958 | return oat_file.release(); |
| 959 | } else { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 960 | return nullptr; |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 961 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 962 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 963 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 964 | const OatFile* ClassLinker::CreateOatFileForDexLocation(const char* dex_location, |
| 965 | int fd, const char* oat_location, |
| 966 | std::vector<std::string>* error_msgs) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 967 | // Generate the output oat file for the dex file |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 968 | VLOG(class_linker) << "Generating oat file " << oat_location << " for " << dex_location; |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 969 | std::string error_msg; |
| 970 | if (!GenerateOatFile(dex_location, fd, oat_location, &error_msg)) { |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 971 | CHECK(!error_msg.empty()); |
| 972 | error_msgs->push_back(error_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 973 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 974 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 975 | std::unique_ptr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL, |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 976 | !Runtime::Current()->IsCompiler(), |
| 977 | &error_msg)); |
| 978 | if (oat_file.get() == nullptr) { |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 979 | std::string compound_msg = StringPrintf("\nFailed to open generated oat file '%s': %s", |
| 980 | oat_location, error_msg.c_str()); |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 981 | error_msgs->push_back(compound_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 982 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 983 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 984 | |
| 985 | return oat_file.release(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 986 | } |
| 987 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 988 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 989 | const char* dex_location, |
| 990 | uint32_t dex_location_checksum, |
Narayan Kamath | 52f8488 | 2014-05-02 10:10:39 +0100 | [diff] [blame] | 991 | const InstructionSet instruction_set, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 992 | std::string* error_msg) { |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 993 | Runtime* runtime = Runtime::Current(); |
Narayan Kamath | 52f8488 | 2014-05-02 10:10:39 +0100 | [diff] [blame] | 994 | const gc::space::ImageSpace* image_space = runtime->GetHeap()->GetImageSpace(); |
| 995 | |
| 996 | // If the requested instruction set is the same as the current runtime, |
| 997 | // we can use the checksums directly. If it isn't, we'll have to read the |
| 998 | // image header from the image for the right instruction set. |
| 999 | uint32_t image_oat_checksum = 0; |
| 1000 | uintptr_t image_oat_data_begin = 0; |
| 1001 | if (instruction_set == kRuntimeISA) { |
| 1002 | const ImageHeader& image_header = image_space->GetImageHeader(); |
| 1003 | image_oat_checksum = image_header.GetOatChecksum(); |
| 1004 | image_oat_data_begin = reinterpret_cast<uintptr_t>(image_header.GetOatDataBegin()); |
| 1005 | } else { |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1006 | std::unique_ptr<ImageHeader> image_header(gc::space::ImageSpace::ReadImageHeaderOrDie( |
Narayan Kamath | 52f8488 | 2014-05-02 10:10:39 +0100 | [diff] [blame] | 1007 | image_space->GetImageLocation().c_str(), instruction_set)); |
| 1008 | image_oat_checksum = image_header->GetOatChecksum(); |
| 1009 | image_oat_data_begin = reinterpret_cast<uintptr_t>(image_header->GetOatDataBegin()); |
| 1010 | } |
| 1011 | const OatHeader& oat_header = oat_file->GetOatHeader(); |
| 1012 | bool image_check = ((oat_header.GetImageFileLocationOatChecksum() == image_oat_checksum) |
| 1013 | && (oat_header.GetImageFileLocationOatDataBegin() == image_oat_data_begin)); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 1014 | |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 1015 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
| 1016 | &dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1017 | if (oat_dex_file == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1018 | *error_msg = StringPrintf("oat file '%s' does not contain contents for '%s' with checksum 0x%x", |
| 1019 | oat_file->GetLocation().c_str(), dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1020 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 1021 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 1022 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1023 | *error_msg += StringPrintf("\noat file '%s' contains contents for '%s'", |
| 1024 | oat_file->GetLocation().c_str(), |
| 1025 | oat_dex_file->GetDexFileLocation().c_str()); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1026 | } |
| 1027 | return false; |
| 1028 | } |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 1029 | bool dex_check = dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 1030 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1031 | if (image_check && dex_check) { |
| 1032 | return true; |
| 1033 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 1034 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1035 | if (!image_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1036 | ScopedObjectAccess soa(Thread::Current()); |
Nicolas Geoffray | 9583fbc | 2014-02-28 15:21:07 +0000 | [diff] [blame] | 1037 | *error_msg = StringPrintf("oat file '%s' mismatch (0x%x, %d) with (0x%x, %" PRIdPTR ")", |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1038 | oat_file->GetLocation().c_str(), |
| 1039 | oat_file->GetOatHeader().GetImageFileLocationOatChecksum(), |
| 1040 | oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(), |
Nicolas Geoffray | 9583fbc | 2014-02-28 15:21:07 +0000 | [diff] [blame] | 1041 | image_oat_checksum, image_oat_data_begin); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1042 | } |
| 1043 | if (!dex_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1044 | *error_msg = StringPrintf("oat file '%s' mismatch (0x%x) with '%s' (0x%x)", |
| 1045 | oat_file->GetLocation().c_str(), |
| 1046 | oat_dex_file->GetDexFileLocationChecksum(), |
| 1047 | dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1048 | } |
| 1049 | return false; |
| 1050 | } |
| 1051 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1052 | const OatFile* ClassLinker::LoadOatFileAndVerifyDexFile(const std::string& oat_file_location, |
| 1053 | const char* dex_location, |
| 1054 | std::string* error_msg, |
| 1055 | bool* open_failed) { |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1056 | std::unique_ptr<const OatFile> oat_file(FindOatFileFromOatLocation(oat_file_location, error_msg)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1057 | if (oat_file.get() == nullptr) { |
| 1058 | *open_failed = true; |
| 1059 | return nullptr; |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 1060 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1061 | *open_failed = false; |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1062 | std::unique_ptr<const DexFile> dex_file; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1063 | uint32_t dex_location_checksum; |
| 1064 | if (!DexFile::GetChecksum(dex_location, &dex_location_checksum, error_msg)) { |
| 1065 | // If no classes.dex found in dex_location, it has been stripped or is corrupt, assume oat is |
| 1066 | // up-to-date. This is the common case in user builds for jar's and apk's in the /system |
| 1067 | // directory. |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 1068 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, NULL); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1069 | if (oat_dex_file == nullptr) { |
| 1070 | *error_msg = StringPrintf("Dex checksum mismatch for location '%s' and failed to find oat " |
| 1071 | "dex file '%s': %s", oat_file_location.c_str(), dex_location, |
| 1072 | error_msg->c_str()); |
| 1073 | return nullptr; |
| 1074 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1075 | dex_file.reset(oat_dex_file->OpenDexFile(error_msg)); |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 1076 | } else { |
| 1077 | bool verified = VerifyOatFileChecksums(oat_file.get(), dex_location, dex_location_checksum, |
Narayan Kamath | 52f8488 | 2014-05-02 10:10:39 +0100 | [diff] [blame] | 1078 | kRuntimeISA, error_msg); |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 1079 | if (!verified) { |
| 1080 | return nullptr; |
| 1081 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1082 | dex_file.reset(oat_file->GetOatDexFile(dex_location, |
| 1083 | &dex_location_checksum)->OpenDexFile(error_msg)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1084 | } |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1085 | |
| 1086 | if (dex_file.get() != nullptr) { |
| 1087 | return oat_file.release(); |
| 1088 | } else { |
| 1089 | return nullptr; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1090 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 1091 | } |
| 1092 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1093 | const OatFile* ClassLinker::FindOatFileContainingDexFileFromDexLocation( |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 1094 | const char* dex_location, |
| 1095 | const uint32_t* const dex_location_checksum, |
| 1096 | InstructionSet isa, |
Calin Juravle | c54aea7 | 2014-07-16 14:45:03 +0100 | [diff] [blame] | 1097 | std::vector<std::string>* error_msgs, |
| 1098 | bool* obsolete_file_cleanup_failed) { |
| 1099 | *obsolete_file_cleanup_failed = false; |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 1100 | // Look for an existing file next to dex. for example, for |
Brian Carlstrom | 0e12bdc | 2014-05-14 17:44:28 -0700 | [diff] [blame] | 1101 | // /foo/bar/baz.jar, look for /foo/bar/<isa>/baz.odex. |
| 1102 | std::string odex_filename(DexFilenameToOdexFilename(dex_location, isa)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1103 | bool open_failed; |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 1104 | std::string error_msg; |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1105 | const OatFile* oat_file = LoadOatFileAndVerifyDexFile(odex_filename, dex_location, &error_msg, |
| 1106 | &open_failed); |
| 1107 | if (oat_file != nullptr) { |
| 1108 | return oat_file; |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 1109 | } |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 1110 | if (dex_location_checksum == nullptr) { |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 1111 | error_msgs->push_back(StringPrintf("Failed to open oat file from %s and no classes.dex found in" |
| 1112 | "%s: %s", odex_filename.c_str(), dex_location, |
| 1113 | error_msg.c_str())); |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 1114 | return nullptr; |
| 1115 | } |
| 1116 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1117 | std::string cache_error_msg; |
Narayan Kamath | 11d9f06 | 2014-04-23 20:24:57 +0100 | [diff] [blame] | 1118 | const std::string dalvik_cache(GetDalvikCacheOrDie(GetInstructionSetString(kRuntimeISA))); |
| 1119 | std::string cache_location(GetDalvikCacheFilenameOrDie(dex_location, |
| 1120 | dalvik_cache.c_str())); |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1121 | oat_file = LoadOatFileAndVerifyDexFile(cache_location, dex_location, &cache_error_msg, |
| 1122 | &open_failed); |
| 1123 | if (oat_file != nullptr) { |
| 1124 | return oat_file; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 1125 | } |
Calin Juravle | c54aea7 | 2014-07-16 14:45:03 +0100 | [diff] [blame] | 1126 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1127 | if (!open_failed && TEMP_FAILURE_RETRY(unlink(cache_location.c_str())) != 0) { |
Calin Juravle | c54aea7 | 2014-07-16 14:45:03 +0100 | [diff] [blame] | 1128 | std::string error_msg = StringPrintf("Failed to remove obsolete file from %s when searching" |
| 1129 | "for dex file %s: %s", |
| 1130 | cache_location.c_str(), dex_location, strerror(errno)); |
| 1131 | error_msgs->push_back(error_msg); |
| 1132 | VLOG(class_linker) << error_msg; |
| 1133 | // Let the caller know that we couldn't remove the obsolete file. |
| 1134 | // This is a good indication that further writes may fail as well. |
| 1135 | *obsolete_file_cleanup_failed = true; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1136 | } |
Calin Juravle | c54aea7 | 2014-07-16 14:45:03 +0100 | [diff] [blame] | 1137 | |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 1138 | std::string compound_msg = StringPrintf("Failed to open oat file from %s (error '%s') or %s " |
| 1139 | "(error '%s').", odex_filename.c_str(), error_msg.c_str(), |
| 1140 | cache_location.c_str(), cache_error_msg.c_str()); |
| 1141 | VLOG(class_linker) << compound_msg; |
| 1142 | error_msgs->push_back(compound_msg); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 1143 | |
Andreas Gampe | 833a485 | 2014-05-21 18:46:59 -0700 | [diff] [blame] | 1144 | return nullptr; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1145 | } |
| 1146 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1147 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1148 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1149 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 1150 | const OatFile* oat_file = oat_files_[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1151 | DCHECK(oat_file != nullptr); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1152 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1153 | return oat_file; |
| 1154 | } |
| 1155 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1156 | return nullptr; |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 1157 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1158 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1159 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location, |
| 1160 | std::string* error_msg) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 1161 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1162 | if (oat_file != nullptr) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 1163 | return oat_file; |
| 1164 | } |
| 1165 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1166 | oat_file = OatFile::Open(oat_location, oat_location, NULL, !Runtime::Current()->IsCompiler(), |
| 1167 | error_msg); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1168 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 1169 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1170 | } |
| 1171 | return oat_file; |
| 1172 | } |
| 1173 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1174 | static void InitFromImageInterpretOnlyCallback(mirror::Object* obj, void* arg) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1175 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1176 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
| 1177 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1178 | DCHECK(obj != NULL); |
| 1179 | DCHECK(class_linker != NULL); |
| 1180 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1181 | if (obj->IsArtMethod()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1182 | mirror::ArtMethod* method = obj->AsArtMethod(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1183 | if (!method->IsNative()) { |
| 1184 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
| 1185 | if (method != Runtime::Current()->GetResolutionMethod()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1186 | method->SetEntryPointFromQuickCompiledCode(GetQuickToInterpreterBridge()); |
| 1187 | method->SetEntryPointFromPortableCompiledCode(GetPortableToInterpreterBridge()); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1188 | } |
| 1189 | } |
| 1190 | } |
| 1191 | } |
| 1192 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1193 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1194 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1195 | CHECK(!init_done_); |
| 1196 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1197 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1198 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 1199 | gc::space::ImageSpace* space = heap->GetImageSpace(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1200 | dex_cache_image_class_lookup_required_ = true; |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1201 | CHECK(space != NULL); |
| 1202 | OatFile& oat_file = GetImageOatFile(space); |
| 1203 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatChecksum(), 0U); |
| 1204 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatDataBegin(), 0U); |
Andreas Gampe | 22f8e5c | 2014-07-09 11:38:21 -0700 | [diff] [blame] | 1205 | const char* image_file_location = oat_file.GetOatHeader(). |
| 1206 | GetStoreValueByKey(OatHeader::kImageLocationKey); |
| 1207 | CHECK(image_file_location == nullptr || *image_file_location == 0); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1208 | portable_resolution_trampoline_ = oat_file.GetOatHeader().GetPortableResolutionTrampoline(); |
| 1209 | quick_resolution_trampoline_ = oat_file.GetOatHeader().GetQuickResolutionTrampoline(); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1210 | portable_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetPortableImtConflictTrampoline(); |
| 1211 | quick_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetQuickImtConflictTrampoline(); |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1212 | quick_generic_jni_trampoline_ = oat_file.GetOatHeader().GetQuickGenericJniTrampoline(); |
Vladimir Marko | 8a63057 | 2014-04-09 18:45:35 +0100 | [diff] [blame] | 1213 | quick_to_interpreter_bridge_trampoline_ = oat_file.GetOatHeader().GetQuickToInterpreterBridge(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1214 | mirror::Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 1215 | mirror::ObjectArray<mirror::DexCache>* dex_caches = |
| 1216 | dex_caches_object->AsObjectArray<mirror::DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1217 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1218 | StackHandleScope<1> hs(self); |
| 1219 | Handle<mirror::ObjectArray<mirror::Class>> class_roots(hs.NewHandle( |
| 1220 | space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots)-> |
| 1221 | AsObjectArray<mirror::Class>())); |
| 1222 | class_roots_ = class_roots.Get(); |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1223 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1224 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 1225 | // as being Strings or not |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1226 | mirror::String::SetClass(GetClassRoot(kJavaLangString)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1227 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1228 | CHECK_EQ(oat_file.GetOatHeader().GetDexFileCount(), |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1229 | static_cast<uint32_t>(dex_caches->GetLength())); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1230 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1231 | StackHandleScope<1> hs(self); |
| 1232 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(dex_caches->Get(i))); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1233 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1234 | const OatFile::OatDexFile* oat_dex_file = oat_file.GetOatDexFile(dex_file_location.c_str(), |
| 1235 | nullptr); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1236 | CHECK(oat_dex_file != NULL) << oat_file.GetLocation() << " " << dex_file_location; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1237 | std::string error_msg; |
| 1238 | const DexFile* dex_file = oat_dex_file->OpenDexFile(&error_msg); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1239 | if (dex_file == NULL) { |
| 1240 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1241 | << " from within oat file " << oat_file.GetLocation() |
| 1242 | << " error '" << error_msg << "'"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1243 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1244 | |
| 1245 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 1246 | |
| 1247 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1248 | } |
| 1249 | |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1250 | // Set classes on AbstractMethod early so that IsMethod tests can be performed during the live |
| 1251 | // bitmap walk. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1252 | mirror::ArtMethod::SetClass(GetClassRoot(kJavaLangReflectArtMethod)); |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1253 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1254 | // Set entry point to interpreter if in InterpretOnly mode. |
| 1255 | if (Runtime::Current()->GetInstrumentation()->InterpretOnly()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1256 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1257 | heap->VisitObjects(InitFromImageInterpretOnlyCallback, this); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 1258 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1259 | |
| 1260 | // reinit class_roots_ |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1261 | mirror::Class::SetClassClass(class_roots->Get(kJavaLangClass)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1262 | class_roots_ = class_roots.Get(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1263 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1264 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1265 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 1266 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1267 | // String class root was set above |
Fred Shih | 4ee7a66 | 2014-07-11 09:59:27 -0700 | [diff] [blame] | 1268 | mirror::Reference::SetClass(GetClassRoot(kJavaLangRefReference)); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1269 | mirror::ArtField::SetClass(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1270 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 1271 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 1272 | mirror::CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 1273 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 1274 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 1275 | mirror::IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1276 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1277 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 1278 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
| 1279 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1280 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1281 | FinishInit(self); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1282 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1283 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1284 | } |
| 1285 | |
Mathieu Chartier | 52e4b43 | 2014-06-10 11:22:31 -0700 | [diff] [blame] | 1286 | void ClassLinker::VisitClassRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { |
| 1287 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
| 1288 | if ((flags & kVisitRootFlagAllRoots) != 0) { |
| 1289 | for (std::pair<const size_t, mirror::Class*>& it : class_table_) { |
| 1290 | callback(reinterpret_cast<mirror::Object**>(&it.second), arg, 0, kRootStickyClass); |
| 1291 | } |
| 1292 | } else if ((flags & kVisitRootFlagNewRoots) != 0) { |
| 1293 | for (auto& pair : new_class_roots_) { |
| 1294 | mirror::Object* old_ref = pair.second; |
| 1295 | callback(reinterpret_cast<mirror::Object**>(&pair.second), arg, 0, kRootStickyClass); |
| 1296 | if (UNLIKELY(pair.second != old_ref)) { |
| 1297 | // Uh ohes, GC moved a root in the log. Need to search the class_table and update the |
| 1298 | // corresponding object. This is slow, but luckily for us, this may only happen with a |
| 1299 | // concurrent moving GC. |
| 1300 | for (auto it = class_table_.lower_bound(pair.first), end = class_table_.end(); |
| 1301 | it != end && it->first == pair.first; ++it) { |
| 1302 | // If the class stored matches the old class, update it to the new value. |
| 1303 | if (old_ref == it->second) { |
| 1304 | it->second = pair.second; |
| 1305 | } |
| 1306 | } |
| 1307 | } |
| 1308 | } |
| 1309 | } |
| 1310 | if ((flags & kVisitRootFlagClearRootLog) != 0) { |
| 1311 | new_class_roots_.clear(); |
| 1312 | } |
| 1313 | if ((flags & kVisitRootFlagStartLoggingNewRoots) != 0) { |
| 1314 | log_new_class_table_roots_ = true; |
| 1315 | } else if ((flags & kVisitRootFlagStopLoggingNewRoots) != 0) { |
| 1316 | log_new_class_table_roots_ = false; |
| 1317 | } |
| 1318 | // We deliberately ignore the class roots in the image since we |
| 1319 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
| 1320 | } |
| 1321 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1322 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1323 | // reinit references to when reinitializing a ClassLinker from a |
| 1324 | // mapped image. |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1325 | void ClassLinker::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1326 | callback(reinterpret_cast<mirror::Object**>(&class_roots_), arg, 0, kRootVMInternal); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1327 | Thread* self = Thread::Current(); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1328 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1329 | ReaderMutexLock mu(self, dex_lock_); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1330 | if ((flags & kVisitRootFlagAllRoots) != 0) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1331 | for (mirror::DexCache*& dex_cache : dex_caches_) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1332 | callback(reinterpret_cast<mirror::Object**>(&dex_cache), arg, 0, kRootVMInternal); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1333 | } |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1334 | } else if ((flags & kVisitRootFlagNewRoots) != 0) { |
| 1335 | for (size_t index : new_dex_cache_roots_) { |
| 1336 | callback(reinterpret_cast<mirror::Object**>(&dex_caches_[index]), arg, 0, kRootVMInternal); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1337 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1338 | } |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1339 | if ((flags & kVisitRootFlagClearRootLog) != 0) { |
| 1340 | new_dex_cache_roots_.clear(); |
| 1341 | } |
| 1342 | if ((flags & kVisitRootFlagStartLoggingNewRoots) != 0) { |
| 1343 | log_new_dex_caches_roots_ = true; |
| 1344 | } else if ((flags & kVisitRootFlagStopLoggingNewRoots) != 0) { |
| 1345 | log_new_dex_caches_roots_ = false; |
| 1346 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1347 | } |
Mathieu Chartier | 52e4b43 | 2014-06-10 11:22:31 -0700 | [diff] [blame] | 1348 | VisitClassRoots(callback, arg, flags); |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1349 | callback(reinterpret_cast<mirror::Object**>(&array_iftable_), arg, 0, kRootVMInternal); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1350 | DCHECK(array_iftable_ != nullptr); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1351 | for (size_t i = 0; i < kFindArrayCacheSize; ++i) { |
| 1352 | if (find_array_class_cache_[i] != nullptr) { |
| 1353 | callback(reinterpret_cast<mirror::Object**>(&find_array_class_cache_[i]), arg, 0, |
| 1354 | kRootVMInternal); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1355 | } |
| 1356 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1357 | } |
| 1358 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1359 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) { |
| 1360 | if (dex_cache_image_class_lookup_required_) { |
| 1361 | MoveImageClassesToClassTable(); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1362 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1363 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Hiroshi Yamauchi | a91a4bc | 2014-06-13 16:44:55 -0700 | [diff] [blame] | 1364 | for (std::pair<const size_t, mirror::Class*>& it : class_table_) { |
| 1365 | mirror::Class** root = &it.second; |
| 1366 | mirror::Class* c = ReadBarrier::BarrierForRoot<mirror::Class, kWithReadBarrier>(root); |
| 1367 | if (!visitor(c, arg)) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1368 | return; |
| 1369 | } |
| 1370 | } |
| 1371 | } |
| 1372 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1373 | static bool GetClassesVisitor(mirror::Class* c, void* arg) { |
| 1374 | std::set<mirror::Class*>* classes = reinterpret_cast<std::set<mirror::Class*>*>(arg); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1375 | classes->insert(c); |
| 1376 | return true; |
| 1377 | } |
| 1378 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1379 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1380 | std::set<mirror::Class*> classes; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1381 | VisitClasses(GetClassesVisitor, &classes); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1382 | for (mirror::Class* klass : classes) { |
| 1383 | if (!visitor(klass, arg)) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1384 | return; |
| 1385 | } |
| 1386 | } |
| 1387 | } |
| 1388 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1389 | ClassLinker::~ClassLinker() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1390 | mirror::Class::ResetClass(); |
| 1391 | mirror::String::ResetClass(); |
Fred Shih | 4ee7a66 | 2014-07-11 09:59:27 -0700 | [diff] [blame] | 1392 | mirror::Reference::ResetClass(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1393 | mirror::ArtField::ResetClass(); |
| 1394 | mirror::ArtMethod::ResetClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1395 | mirror::BooleanArray::ResetArrayClass(); |
| 1396 | mirror::ByteArray::ResetArrayClass(); |
| 1397 | mirror::CharArray::ResetArrayClass(); |
| 1398 | mirror::DoubleArray::ResetArrayClass(); |
| 1399 | mirror::FloatArray::ResetArrayClass(); |
| 1400 | mirror::IntArray::ResetArrayClass(); |
| 1401 | mirror::LongArray::ResetArrayClass(); |
| 1402 | mirror::ShortArray::ResetArrayClass(); |
| 1403 | mirror::Throwable::ResetClass(); |
| 1404 | mirror::StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1405 | STLDeleteElements(&boot_class_path_); |
| 1406 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1407 | } |
| 1408 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1409 | mirror::DexCache* ClassLinker::AllocDexCache(Thread* self, const DexFile& dex_file) { |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1410 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1411 | StackHandleScope<16> hs(self); |
| 1412 | Handle<mirror::Class> dex_cache_class(hs.NewHandle(GetClassRoot(kJavaLangDexCache))); |
| 1413 | Handle<mirror::DexCache> dex_cache( |
| 1414 | hs.NewHandle(down_cast<mirror::DexCache*>( |
| 1415 | heap->AllocObject<true>(self, dex_cache_class.Get(), dex_cache_class->GetObjectSize(), |
| 1416 | VoidFunctor())))); |
| 1417 | if (dex_cache.Get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1418 | return NULL; |
| 1419 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1420 | Handle<mirror::String> |
| 1421 | location(hs.NewHandle(intern_table_->InternStrong(dex_file.GetLocation().c_str()))); |
| 1422 | if (location.Get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1423 | return NULL; |
| 1424 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1425 | Handle<mirror::ObjectArray<mirror::String>> |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1426 | strings(hs.NewHandle(AllocStringArray(self, dex_file.NumStringIds()))); |
| 1427 | if (strings.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1428 | return NULL; |
| 1429 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1430 | Handle<mirror::ObjectArray<mirror::Class>> |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1431 | types(hs.NewHandle(AllocClassArray(self, dex_file.NumTypeIds()))); |
| 1432 | if (types.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1433 | return NULL; |
| 1434 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1435 | Handle<mirror::ObjectArray<mirror::ArtMethod>> |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1436 | methods(hs.NewHandle(AllocArtMethodArray(self, dex_file.NumMethodIds()))); |
| 1437 | if (methods.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1438 | return NULL; |
| 1439 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1440 | Handle<mirror::ObjectArray<mirror::ArtField>> |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1441 | fields(hs.NewHandle(AllocArtFieldArray(self, dex_file.NumFieldIds()))); |
| 1442 | if (fields.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1443 | return NULL; |
| 1444 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1445 | dex_cache->Init(&dex_file, location.Get(), strings.Get(), types.Get(), methods.Get(), |
| 1446 | fields.Get()); |
| 1447 | return dex_cache.Get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1448 | } |
| 1449 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1450 | mirror::Class* ClassLinker::AllocClass(Thread* self, mirror::Class* java_lang_Class, |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1451 | uint32_t class_size) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1452 | DCHECK_GE(class_size, sizeof(mirror::Class)); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1453 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1454 | mirror::Class::InitializeClassVisitor visitor(class_size); |
Mathieu Chartier | 52e4b43 | 2014-06-10 11:22:31 -0700 | [diff] [blame] | 1455 | mirror::Object* k = kMovingClasses ? |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 1456 | heap->AllocObject<true>(self, java_lang_Class, class_size, visitor) : |
| 1457 | heap->AllocNonMovableObject<true>(self, java_lang_Class, class_size, visitor); |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1458 | if (UNLIKELY(k == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1459 | CHECK(self->IsExceptionPending()); // OOME. |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1460 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1461 | } |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1462 | return k->AsClass(); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1463 | } |
| 1464 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1465 | mirror::Class* ClassLinker::AllocClass(Thread* self, uint32_t class_size) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1466 | return AllocClass(self, GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1467 | } |
| 1468 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1469 | mirror::ArtField* ClassLinker::AllocArtField(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1470 | return down_cast<mirror::ArtField*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1471 | GetClassRoot(kJavaLangReflectArtField)->AllocNonMovableObject(self)); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1472 | } |
| 1473 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1474 | mirror::ArtMethod* ClassLinker::AllocArtMethod(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1475 | return down_cast<mirror::ArtMethod*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1476 | GetClassRoot(kJavaLangReflectArtMethod)->AllocNonMovableObject(self)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1477 | } |
| 1478 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1479 | mirror::ObjectArray<mirror::StackTraceElement>* ClassLinker::AllocStackTraceElementArray( |
| 1480 | Thread* self, size_t length) { |
| 1481 | return mirror::ObjectArray<mirror::StackTraceElement>::Alloc( |
| 1482 | self, GetClassRoot(kJavaLangStackTraceElementArrayClass), length); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1483 | } |
| 1484 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1485 | mirror::Class* ClassLinker::EnsureResolved(Thread* self, const char* descriptor, |
| 1486 | mirror::Class* klass) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1487 | DCHECK(klass != NULL); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1488 | |
| 1489 | // For temporary classes we must wait for them to be retired. |
| 1490 | if (init_done_ && klass->IsTemp()) { |
| 1491 | CHECK(!klass->IsResolved()); |
| 1492 | if (klass->IsErroneous()) { |
| 1493 | ThrowEarlierClassFailure(klass); |
| 1494 | return nullptr; |
| 1495 | } |
| 1496 | StackHandleScope<1> hs(self); |
| 1497 | Handle<mirror::Class> h_class(hs.NewHandle(klass)); |
| 1498 | ObjectLock<mirror::Class> lock(self, h_class); |
| 1499 | // Loop and wait for the resolving thread to retire this class. |
| 1500 | while (!h_class->IsRetired() && !h_class->IsErroneous()) { |
| 1501 | lock.WaitIgnoringInterrupts(); |
| 1502 | } |
| 1503 | if (h_class->IsErroneous()) { |
| 1504 | ThrowEarlierClassFailure(h_class.Get()); |
| 1505 | return nullptr; |
| 1506 | } |
| 1507 | CHECK(h_class->IsRetired()); |
| 1508 | // Get the updated class from class table. |
| 1509 | klass = LookupClass(descriptor, h_class.Get()->GetClassLoader()); |
| 1510 | } |
| 1511 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1512 | // Wait for the class if it has not already been linked. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1513 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1514 | StackHandleScope<1> hs(self); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 1515 | HandleWrapper<mirror::Class> h_class(hs.NewHandleWrapper(&klass)); |
| 1516 | ObjectLock<mirror::Class> lock(self, h_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1517 | // Check for circular dependencies between classes. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1518 | if (!h_class->IsResolved() && h_class->GetClinitThreadId() == self->GetTid()) { |
| 1519 | ThrowClassCircularityError(h_class.Get()); |
| 1520 | h_class->SetStatus(mirror::Class::kStatusError, self); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1521 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1522 | } |
| 1523 | // Wait for the pending initialization to complete. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1524 | while (!h_class->IsResolved() && !h_class->IsErroneous()) { |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 1525 | lock.WaitIgnoringInterrupts(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1526 | } |
| 1527 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1528 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1529 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1530 | ThrowEarlierClassFailure(klass); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1531 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1532 | } |
| 1533 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1534 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1535 | self->AssertNoPendingException(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1536 | return klass; |
| 1537 | } |
| 1538 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1539 | mirror::Class* ClassLinker::FindClass(Thread* self, const char* descriptor, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 1540 | Handle<mirror::ClassLoader> class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1541 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1542 | DCHECK(self != nullptr); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1543 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1544 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1545 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1546 | // for primitive classes that aren't backed by dex files. |
| 1547 | return FindPrimitiveClass(descriptor[0]); |
| 1548 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1549 | // Find the class in the loaded classes table. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1550 | mirror::Class* klass = LookupClass(descriptor, class_loader.Get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1551 | if (klass != NULL) { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1552 | return EnsureResolved(self, descriptor, klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1553 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1554 | // Class is not yet loaded. |
| 1555 | if (descriptor[0] == '[') { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1556 | return CreateArrayClass(self, descriptor, class_loader); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1557 | } else if (class_loader.Get() == nullptr) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1558 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1559 | if (pair.second != NULL) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1560 | StackHandleScope<1> hs(self); |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 1561 | return DefineClass(descriptor, NullHandle<mirror::ClassLoader>(), *pair.first, *pair.second); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1562 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1563 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1564 | // First try the boot class path, we check the descriptor first to avoid an unnecessary |
| 1565 | // throw of a NoClassDefFoundError. |
| 1566 | if (IsInBootClassPath(descriptor)) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1567 | mirror::Class* system_class = FindSystemClass(self, descriptor); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1568 | CHECK(system_class != NULL); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1569 | return system_class; |
| 1570 | } |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1571 | // Next try the compile time class path. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1572 | const std::vector<const DexFile*>* class_path; |
| 1573 | { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1574 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1575 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1576 | soa.AddLocalReference<jobject>(class_loader.Get())); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1577 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1578 | } |
| 1579 | |
| 1580 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1581 | if (pair.second != NULL) { |
| 1582 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1583 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1584 | |
| 1585 | } else { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1586 | ScopedObjectAccessUnchecked soa(self); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1587 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1588 | soa.AddLocalReference<jobject>(class_loader.Get())); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1589 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1590 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1591 | { |
| 1592 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1593 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1594 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1595 | if (class_name_object.get() == NULL) { |
| 1596 | return NULL; |
| 1597 | } |
| 1598 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1599 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1600 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1601 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1602 | } |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1603 | if (self->IsExceptionPending()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1604 | // If the ClassLoader threw, pass that exception up. |
| 1605 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1606 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1607 | // broken loader - throw NPE to be compatible with Dalvik |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1608 | ThrowNullPointerException(NULL, StringPrintf("ClassLoader.loadClass returned null for %s", |
| 1609 | class_name_string.c_str()).c_str()); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1610 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1611 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1612 | // success, return mirror::Class* |
| 1613 | return soa.Decode<mirror::Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1614 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1615 | } |
| 1616 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1617 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1618 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1619 | } |
| 1620 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1621 | mirror::Class* ClassLinker::DefineClass(const char* descriptor, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 1622 | Handle<mirror::ClassLoader> class_loader, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1623 | const DexFile& dex_file, |
| 1624 | const DexFile::ClassDef& dex_class_def) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1625 | Thread* self = Thread::Current(); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1626 | StackHandleScope<3> hs(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1627 | auto klass = hs.NewHandle<mirror::Class>(nullptr); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1628 | bool should_allocate = false; |
| 1629 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1630 | // Load the class from the dex file. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1631 | if (UNLIKELY(!init_done_)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1632 | // finish up init of hand crafted class_roots_ |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1633 | if (strcmp(descriptor, "Ljava/lang/Object;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1634 | klass.Assign(GetClassRoot(kJavaLangObject)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1635 | } else if (strcmp(descriptor, "Ljava/lang/Class;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1636 | klass.Assign(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1637 | } else if (strcmp(descriptor, "Ljava/lang/String;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1638 | klass.Assign(GetClassRoot(kJavaLangString)); |
Fred Shih | 4ee7a66 | 2014-07-11 09:59:27 -0700 | [diff] [blame] | 1639 | } else if (strcmp(descriptor, "Ljava/lang/ref/Reference;") == 0) { |
| 1640 | klass.Assign(GetClassRoot(kJavaLangRefReference)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1641 | } else if (strcmp(descriptor, "Ljava/lang/DexCache;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1642 | klass.Assign(GetClassRoot(kJavaLangDexCache)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1643 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtField;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1644 | klass.Assign(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1645 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtMethod;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1646 | klass.Assign(GetClassRoot(kJavaLangReflectArtMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1647 | } else { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1648 | should_allocate = true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1649 | } |
| 1650 | } else { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1651 | should_allocate = true; |
| 1652 | } |
| 1653 | |
| 1654 | if (should_allocate) { |
| 1655 | // Allocate a class with the status of not ready. |
| 1656 | // Interface object should get the right size here. Regular class will |
| 1657 | // figure out the right size later and be replaced with one of the right |
| 1658 | // size when the class becomes resolved. |
| 1659 | klass.Assign(AllocClass(self, SizeOfClassWithoutEmbeddedTables(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1660 | } |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1661 | if (UNLIKELY(klass.Get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1662 | CHECK(self->IsExceptionPending()); // Expect an OOME. |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1663 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1664 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1665 | klass->SetDexCache(FindDexCache(dex_file)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1666 | LoadClass(dex_file, dex_class_def, klass, class_loader.Get()); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 1667 | ObjectLock<mirror::Class> lock(self, klass); |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1668 | if (self->IsExceptionPending()) { |
| 1669 | // An exception occured during load, set status to erroneous while holding klass' lock in case |
| 1670 | // notification is necessary. |
| 1671 | klass->SetStatus(mirror::Class::kStatusError, self); |
| 1672 | return nullptr; |
| 1673 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1674 | klass->SetClinitThreadId(self->GetTid()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1675 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1676 | // Add the newly loaded class to the loaded classes table. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1677 | mirror::Class* existing = InsertClass(descriptor, klass.Get(), Hash(descriptor)); |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1678 | if (existing != nullptr) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1679 | // We failed to insert because we raced with another thread. Calling EnsureResolved may cause |
| 1680 | // this thread to block. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1681 | return EnsureResolved(self, descriptor, existing); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1682 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1683 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1684 | // Finish loading (if necessary) by finding parents |
| 1685 | CHECK(!klass->IsLoaded()); |
| 1686 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1687 | // Loading failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1688 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1689 | return nullptr; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1690 | } |
| 1691 | CHECK(klass->IsLoaded()); |
| 1692 | // Link the class (if necessary) |
| 1693 | CHECK(!klass->IsResolved()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1694 | // TODO: Use fast jobjects? |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1695 | auto interfaces = hs.NewHandle<mirror::ObjectArray<mirror::Class>>(nullptr); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1696 | |
| 1697 | mirror::Class* new_class = nullptr; |
| 1698 | if (!LinkClass(self, descriptor, klass, interfaces, &new_class)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1699 | // Linking failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1700 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1701 | return nullptr; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1702 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1703 | CHECK(new_class != nullptr) << descriptor; |
| 1704 | CHECK(new_class->IsResolved()) << descriptor; |
| 1705 | |
| 1706 | Handle<mirror::Class> new_class_h(hs.NewHandle(new_class)); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1707 | |
| 1708 | /* |
| 1709 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1710 | * definition of "preparation" is creating the static fields for a |
| 1711 | * class and initializing them to the standard default values, but not |
| 1712 | * executing any code (that comes later, during "initialization"). |
| 1713 | * |
| 1714 | * We did the static preparation in LinkClass. |
| 1715 | * |
| 1716 | * The class has been prepared and resolved but possibly not yet verified |
| 1717 | * at this point. |
| 1718 | */ |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1719 | Dbg::PostClassPrepare(new_class_h.Get()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1720 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1721 | return new_class_h.Get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1722 | } |
| 1723 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1724 | uint32_t ClassLinker::SizeOfClassWithoutEmbeddedTables(const DexFile& dex_file, |
| 1725 | const DexFile::ClassDef& dex_class_def) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1726 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1727 | size_t num_ref = 0; |
| 1728 | size_t num_32 = 0; |
| 1729 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1730 | if (class_data != NULL) { |
| 1731 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1732 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1733 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1734 | char c = descriptor[0]; |
| 1735 | if (c == 'L' || c == '[') { |
| 1736 | num_ref++; |
| 1737 | } else if (c == 'J' || c == 'D') { |
| 1738 | num_64++; |
| 1739 | } else { |
| 1740 | num_32++; |
| 1741 | } |
| 1742 | } |
| 1743 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 1744 | return mirror::Class::ComputeClassSize(false, 0, num_32, num_64, num_ref); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1745 | } |
| 1746 | |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1747 | OatFile::OatClass ClassLinker::GetOatClass(const DexFile& dex_file, uint16_t class_def_idx) { |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1748 | DCHECK_NE(class_def_idx, DexFile::kDexNoIndex16); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1749 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1750 | CHECK(oat_file != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 1751 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1752 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation().c_str(), |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 1753 | &dex_location_checksum); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1754 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation(); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1755 | return oat_dex_file->GetOatClass(class_def_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1756 | } |
| 1757 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1758 | static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, uint16_t class_def_idx, |
| 1759 | uint32_t method_idx) { |
| 1760 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_idx); |
| 1761 | const byte* class_data = dex_file.GetClassData(class_def); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1762 | CHECK(class_data != NULL); |
| 1763 | ClassDataItemIterator it(dex_file, class_data); |
| 1764 | // Skip fields |
| 1765 | while (it.HasNextStaticField()) { |
| 1766 | it.Next(); |
| 1767 | } |
| 1768 | while (it.HasNextInstanceField()) { |
| 1769 | it.Next(); |
| 1770 | } |
| 1771 | // Process methods |
| 1772 | size_t class_def_method_index = 0; |
| 1773 | while (it.HasNextDirectMethod()) { |
| 1774 | if (it.GetMemberIndex() == method_idx) { |
| 1775 | return class_def_method_index; |
| 1776 | } |
| 1777 | class_def_method_index++; |
| 1778 | it.Next(); |
| 1779 | } |
| 1780 | while (it.HasNextVirtualMethod()) { |
| 1781 | if (it.GetMemberIndex() == method_idx) { |
| 1782 | return class_def_method_index; |
| 1783 | } |
| 1784 | class_def_method_index++; |
| 1785 | it.Next(); |
| 1786 | } |
| 1787 | DCHECK(!it.HasNext()); |
| 1788 | LOG(FATAL) << "Failed to find method index " << method_idx << " in " << dex_file.GetLocation(); |
| 1789 | return 0; |
| 1790 | } |
| 1791 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1792 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(mirror::ArtMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1793 | // 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] | 1794 | // method for direct methods (or virtual methods made direct). |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1795 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1796 | size_t oat_method_index; |
| 1797 | if (method->IsStatic() || method->IsDirect()) { |
| 1798 | // Simple case where the oat method index was stashed at load time. |
| 1799 | oat_method_index = method->GetMethodIndex(); |
| 1800 | } else { |
| 1801 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1802 | // by search for its position in the declared virtual methods. |
| 1803 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1804 | size_t end = declaring_class->NumVirtualMethods(); |
| 1805 | bool found = false; |
| 1806 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1807 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1808 | found = true; |
| 1809 | break; |
| 1810 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1811 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1812 | } |
| 1813 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1814 | } |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1815 | DCHECK_EQ(oat_method_index, |
| 1816 | GetOatMethodIndexFromMethodIndex(*declaring_class->GetDexCache()->GetDexFile(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1817 | method->GetDeclaringClass()->GetDexClassDefIndex(), |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1818 | method->GetDexMethodIndex())); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1819 | const OatFile::OatClass oat_class = GetOatClass(*declaring_class->GetDexCache()->GetDexFile(), |
| 1820 | declaring_class->GetDexClassDefIndex()); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1821 | |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1822 | return oat_class.GetOatMethod(oat_method_index); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1823 | } |
| 1824 | |
| 1825 | // Special case to get oat code without overwriting a trampoline. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1826 | const void* ClassLinker::GetQuickOatCodeFor(mirror::ArtMethod* method) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1827 | CHECK(!method->IsAbstract()) << PrettyMethod(method); |
Jeff Hao | 8df6cea | 2013-07-29 13:54:48 -0700 | [diff] [blame] | 1828 | if (method->IsProxyMethod()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1829 | return GetQuickProxyInvokeHandler(); |
Jeff Hao | 8df6cea | 2013-07-29 13:54:48 -0700 | [diff] [blame] | 1830 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1831 | const void* result = GetOatMethodFor(method).GetQuickCode(); |
| 1832 | if (result == nullptr) { |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1833 | if (method->IsNative()) { |
| 1834 | // No code and native? Use generic trampoline. |
| 1835 | result = GetQuickGenericJniTrampoline(); |
| 1836 | } else if (method->IsPortableCompiled()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1837 | // No code? Do we expect portable code? |
| 1838 | result = GetQuickToPortableBridge(); |
| 1839 | } else { |
| 1840 | // No code? You must mean to go into the interpreter. |
| 1841 | result = GetQuickToInterpreterBridge(); |
| 1842 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1843 | } |
| 1844 | return result; |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1845 | } |
| 1846 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1847 | const void* ClassLinker::GetPortableOatCodeFor(mirror::ArtMethod* method, |
| 1848 | bool* have_portable_code) { |
| 1849 | CHECK(!method->IsAbstract()) << PrettyMethod(method); |
| 1850 | *have_portable_code = false; |
| 1851 | if (method->IsProxyMethod()) { |
| 1852 | return GetPortableProxyInvokeHandler(); |
| 1853 | } |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 1854 | const OatFile::OatMethod oat_method = GetOatMethodFor(method); |
| 1855 | const void* result = oat_method.GetPortableCode(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1856 | if (result == nullptr) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 1857 | if (oat_method.GetQuickCode() == nullptr) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1858 | // No code? You must mean to go into the interpreter. |
| 1859 | result = GetPortableToInterpreterBridge(); |
| 1860 | } else { |
| 1861 | // No code? But there's quick code, so use a bridge. |
| 1862 | result = GetPortableToQuickBridge(); |
| 1863 | } |
| 1864 | } else { |
| 1865 | *have_portable_code = true; |
| 1866 | } |
| 1867 | return result; |
| 1868 | } |
| 1869 | |
| 1870 | const void* ClassLinker::GetQuickOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx, |
| 1871 | uint32_t method_idx) { |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1872 | const OatFile::OatClass oat_class = GetOatClass(dex_file, class_def_idx); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1873 | uint32_t oat_method_idx = GetOatMethodIndexFromMethodIndex(dex_file, class_def_idx, method_idx); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1874 | return oat_class.GetOatMethod(oat_method_idx).GetQuickCode(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1875 | } |
| 1876 | |
| 1877 | const void* ClassLinker::GetPortableOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx, |
| 1878 | uint32_t method_idx) { |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1879 | const OatFile::OatClass oat_class = GetOatClass(dex_file, class_def_idx); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1880 | uint32_t oat_method_idx = GetOatMethodIndexFromMethodIndex(dex_file, class_def_idx, method_idx); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1881 | return oat_class.GetOatMethod(oat_method_idx).GetPortableCode(); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1882 | } |
| 1883 | |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1884 | // Returns true if the method must run with interpreter, false otherwise. |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 1885 | static bool NeedsInterpreter( |
| 1886 | mirror::ArtMethod* method, const void* quick_code, const void* portable_code) |
| 1887 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1888 | if ((quick_code == nullptr) && (portable_code == nullptr)) { |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1889 | // No code: need interpreter. |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1890 | // May return true for native code, in the case of generic JNI |
| 1891 | // DCHECK(!method->IsNative()); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1892 | return true; |
| 1893 | } |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 1894 | #ifdef ART_SEA_IR_MODE |
| 1895 | ScopedObjectAccess soa(Thread::Current()); |
| 1896 | if (std::string::npos != PrettyMethod(method).find("fibonacci")) { |
| 1897 | LOG(INFO) << "Found " << PrettyMethod(method); |
| 1898 | return false; |
| 1899 | } |
| 1900 | #endif |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1901 | // If interpreter mode is enabled, every method (except native and proxy) must |
| 1902 | // be run with interpreter. |
| 1903 | return Runtime::Current()->GetInstrumentation()->InterpretOnly() && |
| 1904 | !method->IsNative() && !method->IsProxyMethod(); |
| 1905 | } |
| 1906 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1907 | void ClassLinker::FixupStaticTrampolines(mirror::Class* klass) { |
Brian Carlstrom | 073278c | 2014-02-19 15:21:21 -0800 | [diff] [blame] | 1908 | DCHECK(klass->IsInitialized()) << PrettyDescriptor(klass); |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1909 | if (klass->NumDirectMethods() == 0) { |
| 1910 | return; // No direct methods => no static methods. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1911 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1912 | Runtime* runtime = Runtime::Current(); |
| 1913 | if (!runtime->IsStarted() || runtime->UseCompileTimeClassPath()) { |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1914 | return; // OAT file unavailable. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1915 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1916 | const DexFile& dex_file = klass->GetDexFile(); |
| 1917 | const DexFile::ClassDef* dex_class_def = klass->GetClassDef(); |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1918 | CHECK(dex_class_def != nullptr); |
| 1919 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1920 | // There should always be class data if there were direct methods. |
| 1921 | CHECK(class_data != nullptr) << PrettyDescriptor(klass); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1922 | const OatFile::OatClass oat_class = GetOatClass(dex_file, klass->GetDexClassDefIndex()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1923 | ClassDataItemIterator it(dex_file, class_data); |
| 1924 | // Skip fields |
| 1925 | while (it.HasNextStaticField()) { |
| 1926 | it.Next(); |
| 1927 | } |
| 1928 | while (it.HasNextInstanceField()) { |
| 1929 | it.Next(); |
| 1930 | } |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1931 | // Link the code of methods skipped by LinkCode. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1932 | for (size_t method_index = 0; it.HasNextDirectMethod(); ++method_index, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1933 | mirror::ArtMethod* method = klass->GetDirectMethod(method_index); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1934 | if (!method->IsStatic()) { |
| 1935 | // Only update static methods. |
| 1936 | continue; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1937 | } |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1938 | const void* portable_code = oat_class.GetOatMethod(method_index).GetPortableCode(); |
| 1939 | const void* quick_code = oat_class.GetOatMethod(method_index).GetQuickCode(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1940 | const bool enter_interpreter = NeedsInterpreter(method, quick_code, portable_code); |
| 1941 | bool have_portable_code = false; |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1942 | if (enter_interpreter) { |
| 1943 | // Use interpreter entry point. |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1944 | // Check whether the method is native, in which case it's generic JNI. |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1945 | if (quick_code == nullptr && portable_code == nullptr && method->IsNative()) { |
| 1946 | quick_code = GetQuickGenericJniTrampoline(); |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1947 | portable_code = GetPortableToQuickBridge(); |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1948 | } else { |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1949 | portable_code = GetPortableToInterpreterBridge(); |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1950 | quick_code = GetQuickToInterpreterBridge(); |
| 1951 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1952 | } else { |
| 1953 | if (portable_code == nullptr) { |
| 1954 | portable_code = GetPortableToQuickBridge(); |
| 1955 | } else { |
| 1956 | have_portable_code = true; |
| 1957 | } |
| 1958 | if (quick_code == nullptr) { |
| 1959 | quick_code = GetQuickToPortableBridge(); |
| 1960 | } |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1961 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1962 | runtime->GetInstrumentation()->UpdateMethodsCode(method, quick_code, portable_code, |
| 1963 | have_portable_code); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1964 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1965 | // Ignore virtual methods on the iterator. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1966 | } |
| 1967 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 1968 | void ClassLinker::LinkCode(Handle<mirror::ArtMethod> method, const OatFile::OatClass* oat_class, |
Dmitry Petrochenko | f0972a4 | 2014-05-16 17:43:39 +0700 | [diff] [blame] | 1969 | const DexFile& dex_file, uint32_t dex_method_index, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 1970 | uint32_t method_index) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1971 | // Method shouldn't have already been linked. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1972 | DCHECK(method->GetEntryPointFromQuickCompiledCode() == nullptr); |
| 1973 | DCHECK(method->GetEntryPointFromPortableCompiledCode() == nullptr); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1974 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1975 | // non-abstract methods also get their code pointers. |
| 1976 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1977 | oat_method.LinkMethod(method.Get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1978 | |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1979 | // Install entry point from interpreter. |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 1980 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1981 | bool enter_interpreter = NeedsInterpreter(method.Get(), |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1982 | method->GetEntryPointFromQuickCompiledCode(), |
| 1983 | method->GetEntryPointFromPortableCompiledCode()); |
Andreas Gampe | bf6b92a | 2014-03-05 16:11:04 -0800 | [diff] [blame] | 1984 | if (enter_interpreter && !method->IsNative()) { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1985 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1986 | } else { |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 1987 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1988 | } |
| 1989 | |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1990 | if (method->IsAbstract()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1991 | method->SetEntryPointFromQuickCompiledCode(GetQuickToInterpreterBridge()); |
| 1992 | method->SetEntryPointFromPortableCompiledCode(GetPortableToInterpreterBridge()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1993 | return; |
| 1994 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1995 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1996 | bool have_portable_code = false; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1997 | if (method->IsStatic() && !method->IsConstructor()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1998 | // For static methods excluding the class initializer, install the trampoline. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1999 | // It will be replaced by the proper entry point by ClassLinker::FixupStaticTrampolines |
| 2000 | // after initializing class (see ClassLinker::InitializeClass method). |
Dmitry Petrochenko | f0972a4 | 2014-05-16 17:43:39 +0700 | [diff] [blame] | 2001 | method->SetEntryPointFromQuickCompiledCode(GetQuickResolutionTrampoline()); |
| 2002 | method->SetEntryPointFromPortableCompiledCode(GetPortableResolutionTrampoline()); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 2003 | } else if (enter_interpreter) { |
Andreas Gampe | bf6b92a | 2014-03-05 16:11:04 -0800 | [diff] [blame] | 2004 | if (!method->IsNative()) { |
| 2005 | // Set entry point from compiled code if there's no code or in interpreter only mode. |
| 2006 | method->SetEntryPointFromQuickCompiledCode(GetQuickToInterpreterBridge()); |
| 2007 | method->SetEntryPointFromPortableCompiledCode(GetPortableToInterpreterBridge()); |
| 2008 | } else { |
| 2009 | method->SetEntryPointFromQuickCompiledCode(GetQuickGenericJniTrampoline()); |
| 2010 | method->SetEntryPointFromPortableCompiledCode(GetPortableToQuickBridge()); |
| 2011 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2012 | } else if (method->GetEntryPointFromPortableCompiledCode() != nullptr) { |
| 2013 | DCHECK(method->GetEntryPointFromQuickCompiledCode() == nullptr); |
| 2014 | have_portable_code = true; |
| 2015 | method->SetEntryPointFromQuickCompiledCode(GetQuickToPortableBridge()); |
| 2016 | } else { |
| 2017 | DCHECK(method->GetEntryPointFromQuickCompiledCode() != nullptr); |
| 2018 | method->SetEntryPointFromPortableCompiledCode(GetPortableToQuickBridge()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 2019 | } |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 2020 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2021 | if (method->IsNative()) { |
| 2022 | // Unregistering restores the dlsym lookup stub. |
| 2023 | method->UnregisterNative(Thread::Current()); |
Andreas Gampe | 9054683 | 2014-03-12 18:07:19 -0700 | [diff] [blame] | 2024 | |
| 2025 | if (enter_interpreter) { |
| 2026 | // We have a native method here without code. Then it should have either the GenericJni |
| 2027 | // trampoline as entrypoint (non-static), or the Resolution trampoline (static). |
Dmitry Petrochenko | f0972a4 | 2014-05-16 17:43:39 +0700 | [diff] [blame] | 2028 | DCHECK(method->GetEntryPointFromQuickCompiledCode() == GetQuickResolutionTrampoline() |
Andreas Gampe | 9a6a99a | 2014-03-14 07:52:20 -0700 | [diff] [blame] | 2029 | || method->GetEntryPointFromQuickCompiledCode() == GetQuickGenericJniTrampoline()); |
Andreas Gampe | 9054683 | 2014-03-12 18:07:19 -0700 | [diff] [blame] | 2030 | } |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 2031 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 2032 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2033 | // Allow instrumentation its chance to hijack code. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2034 | runtime->GetInstrumentation()->UpdateMethodsCode(method.Get(), |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2035 | method->GetEntryPointFromQuickCompiledCode(), |
| 2036 | method->GetEntryPointFromPortableCompiledCode(), |
| 2037 | have_portable_code); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 2038 | } |
| 2039 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2040 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 2041 | const DexFile::ClassDef& dex_class_def, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2042 | Handle<mirror::Class> klass, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2043 | mirror::ClassLoader* class_loader) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2044 | CHECK(klass.Get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2045 | CHECK(klass->GetDexCache() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2046 | CHECK_EQ(mirror::Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2047 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2048 | CHECK(descriptor != NULL); |
| 2049 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2050 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Hiroshi Yamauchi | 624468c | 2014-03-31 15:14:47 -0700 | [diff] [blame] | 2051 | if (kUseBakerOrBrooksReadBarrier) { |
| 2052 | klass->AssertReadBarrierPointer(); |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 2053 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2054 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 2055 | // Make sure that none of our runtime-only flags are set. |
Brian Carlstrom | 8e3fb14 | 2013-10-09 21:00:27 -0700 | [diff] [blame] | 2056 | CHECK_EQ(access_flags & ~kAccJavaFlagsMask, 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2057 | klass->SetAccessFlags(access_flags); |
| 2058 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2059 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2060 | klass->SetStatus(mirror::Class::kStatusIdx, NULL); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2061 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2062 | klass->SetDexClassDefIndex(dex_file.GetIndexForClassDef(dex_class_def)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2063 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2064 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2065 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 2066 | if (class_data == NULL) { |
| 2067 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2068 | } |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 2069 | |
| 2070 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
| 2071 | const OatFile::OatClass oat_class = GetOatClass(dex_file, klass->GetDexClassDefIndex()); |
| 2072 | LoadClassMembers(dex_file, class_data, klass, class_loader, &oat_class); |
| 2073 | } else { |
| 2074 | LoadClassMembers(dex_file, class_data, klass, class_loader, nullptr); |
| 2075 | } |
| 2076 | } |
| 2077 | |
| 2078 | void ClassLinker::LoadClassMembers(const DexFile& dex_file, |
| 2079 | const byte* class_data, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2080 | Handle<mirror::Class> klass, |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 2081 | mirror::ClassLoader* class_loader, |
| 2082 | const OatFile::OatClass* oat_class) { |
| 2083 | // Load fields. |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2084 | ClassDataItemIterator it(dex_file, class_data); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2085 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2086 | if (it.NumStaticFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2087 | mirror::ObjectArray<mirror::ArtField>* statics = AllocArtFieldArray(self, it.NumStaticFields()); |
| 2088 | if (UNLIKELY(statics == NULL)) { |
| 2089 | CHECK(self->IsExceptionPending()); // OOME. |
| 2090 | return; |
| 2091 | } |
| 2092 | klass->SetSFields(statics); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2093 | } |
| 2094 | if (it.NumInstanceFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2095 | mirror::ObjectArray<mirror::ArtField>* fields = |
| 2096 | AllocArtFieldArray(self, it.NumInstanceFields()); |
| 2097 | if (UNLIKELY(fields == NULL)) { |
| 2098 | CHECK(self->IsExceptionPending()); // OOME. |
| 2099 | return; |
| 2100 | } |
| 2101 | klass->SetIFields(fields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2102 | } |
| 2103 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2104 | StackHandleScope<1> hs(self); |
| 2105 | Handle<mirror::ArtField> sfield(hs.NewHandle(AllocArtField(self))); |
| 2106 | if (UNLIKELY(sfield.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2107 | CHECK(self->IsExceptionPending()); // OOME. |
| 2108 | return; |
| 2109 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2110 | klass->SetStaticField(i, sfield.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2111 | LoadField(dex_file, it, klass, sfield); |
| 2112 | } |
| 2113 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2114 | StackHandleScope<1> hs(self); |
| 2115 | Handle<mirror::ArtField> ifield(hs.NewHandle(AllocArtField(self))); |
| 2116 | if (UNLIKELY(ifield.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2117 | CHECK(self->IsExceptionPending()); // OOME. |
| 2118 | return; |
| 2119 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2120 | klass->SetInstanceField(i, ifield.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2121 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2122 | } |
| 2123 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2124 | // Load methods. |
| 2125 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2126 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2127 | mirror::ObjectArray<mirror::ArtMethod>* directs = |
| 2128 | AllocArtMethodArray(self, it.NumDirectMethods()); |
| 2129 | if (UNLIKELY(directs == NULL)) { |
| 2130 | CHECK(self->IsExceptionPending()); // OOME. |
| 2131 | return; |
| 2132 | } |
| 2133 | klass->SetDirectMethods(directs); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2134 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2135 | if (it.NumVirtualMethods() != 0) { |
| 2136 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2137 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = |
| 2138 | AllocArtMethodArray(self, it.NumVirtualMethods()); |
| 2139 | if (UNLIKELY(virtuals == NULL)) { |
| 2140 | CHECK(self->IsExceptionPending()); // OOME. |
| 2141 | return; |
| 2142 | } |
| 2143 | klass->SetVirtualMethods(virtuals); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2144 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 2145 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2146 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2147 | StackHandleScope<1> hs(self); |
| 2148 | Handle<mirror::ArtMethod> method(hs.NewHandle(LoadMethod(self, dex_file, it, klass))); |
| 2149 | if (UNLIKELY(method.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2150 | CHECK(self->IsExceptionPending()); // OOME. |
| 2151 | return; |
| 2152 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2153 | klass->SetDirectMethod(i, method.Get()); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 2154 | if (oat_class != nullptr) { |
| 2155 | LinkCode(method, oat_class, dex_file, it.GetMemberIndex(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2156 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 2157 | method->SetMethodIndex(class_def_method_index); |
| 2158 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2159 | } |
| 2160 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2161 | StackHandleScope<1> hs(self); |
| 2162 | Handle<mirror::ArtMethod> method(hs.NewHandle(LoadMethod(self, dex_file, it, klass))); |
| 2163 | if (UNLIKELY(method.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2164 | CHECK(self->IsExceptionPending()); // OOME. |
| 2165 | return; |
| 2166 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2167 | klass->SetVirtualMethod(i, method.Get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 2168 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 2169 | if (oat_class != nullptr) { |
| 2170 | LinkCode(method, oat_class, dex_file, it.GetMemberIndex(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2171 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 2172 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2173 | } |
| 2174 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2175 | } |
| 2176 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 2177 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2178 | Handle<mirror::Class> klass, Handle<mirror::ArtField> dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2179 | uint32_t field_idx = it.GetMemberIndex(); |
| 2180 | dst->SetDexFieldIndex(field_idx); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2181 | dst->SetDeclaringClass(klass.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2182 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2183 | } |
| 2184 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2185 | mirror::ArtMethod* ClassLinker::LoadMethod(Thread* self, const DexFile& dex_file, |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2186 | const ClassDataItemIterator& it, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2187 | Handle<mirror::Class> klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2188 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2189 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2190 | const char* method_name = dex_file.StringDataByIdx(method_id.name_idx_); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2191 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2192 | mirror::ArtMethod* dst = AllocArtMethod(self); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2193 | if (UNLIKELY(dst == NULL)) { |
| 2194 | CHECK(self->IsExceptionPending()); // OOME. |
| 2195 | return NULL; |
| 2196 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2197 | DCHECK(dst->IsArtMethod()) << PrettyDescriptor(dst->GetClass()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2198 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2199 | const char* old_cause = self->StartAssertNoThreadSuspension("LoadMethod"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2200 | dst->SetDexMethodIndex(dex_method_idx); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2201 | dst->SetDeclaringClass(klass.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2202 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2203 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2204 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2205 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2206 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2207 | |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2208 | uint32_t access_flags = it.GetMemberAccessFlags(); |
| 2209 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2210 | if (UNLIKELY(strcmp("finalize", method_name) == 0)) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2211 | // Set finalizable flag on declaring class. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2212 | if (strcmp("V", dex_file.GetShorty(method_id.proto_idx_)) == 0) { |
| 2213 | // Void return type. |
| 2214 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 2215 | klass->SetFinalizable(); |
| 2216 | } else { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 2217 | std::string klass_descriptor = klass->GetDescriptor(); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2218 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 2219 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 2220 | // subclasses, so we exclude it here. |
| 2221 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 2222 | // empty. |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 2223 | if (klass_descriptor.compare("Ljava/lang/Object;") != 0 && |
| 2224 | klass_descriptor.compare("Ljava/lang/Enum;") != 0) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2225 | klass->SetFinalizable(); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2226 | } |
| 2227 | } |
| 2228 | } |
| 2229 | } else if (method_name[0] == '<') { |
| 2230 | // Fix broken access flags for initializers. Bug 11157540. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2231 | bool is_init = (strcmp("<init>", method_name) == 0); |
| 2232 | bool is_clinit = !is_init && (strcmp("<clinit>", method_name) == 0); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2233 | if (UNLIKELY(!is_init && !is_clinit)) { |
| 2234 | LOG(WARNING) << "Unexpected '<' at start of method name " << method_name; |
| 2235 | } else { |
| 2236 | if (UNLIKELY((access_flags & kAccConstructor) == 0)) { |
| 2237 | LOG(WARNING) << method_name << " didn't have expected constructor access flag in class " |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2238 | << PrettyDescriptor(klass.Get()) << " in dex file " << dex_file.GetLocation(); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2239 | access_flags |= kAccConstructor; |
| 2240 | } |
| 2241 | } |
| 2242 | } |
| 2243 | dst->SetAccessFlags(access_flags); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2244 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2245 | self->EndAssertNoThreadSuspension(old_cause); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2246 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2247 | } |
| 2248 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 2249 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2250 | Thread* self = Thread::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2251 | StackHandleScope<1> hs(self); |
| 2252 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(AllocDexCache(self, dex_file))); |
| 2253 | CHECK(dex_cache.Get() != NULL) << "Failed to allocate dex cache for " << dex_file.GetLocation(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2254 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 2255 | } |
| 2256 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2257 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2258 | Handle<mirror::DexCache> dex_cache) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2259 | CHECK(dex_cache.Get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 2260 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 2261 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2262 | } |
| 2263 | |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2264 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2265 | dex_lock_.AssertSharedHeld(Thread::Current()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2266 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2267 | mirror::DexCache* dex_cache = GetDexCache(i); |
| 2268 | if (dex_cache->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2269 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2270 | } |
| 2271 | } |
| 2272 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 2273 | } |
| 2274 | |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2275 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2276 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 2277 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2278 | } |
| 2279 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2280 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2281 | Handle<mirror::DexCache> dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2282 | dex_lock_.AssertExclusiveHeld(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2283 | CHECK(dex_cache.Get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 2284 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())) |
| 2285 | << dex_cache->GetLocation()->ToModifiedUtf8() << " " << dex_file.GetLocation(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2286 | dex_caches_.push_back(dex_cache.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2287 | dex_cache->SetDexFile(&dex_file); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 2288 | if (log_new_dex_caches_roots_) { |
| 2289 | // TODO: This is not safe if we can remove dex caches. |
| 2290 | new_dex_cache_roots_.push_back(dex_caches_.size() - 1); |
| 2291 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2292 | } |
| 2293 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2294 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2295 | Thread* self = Thread::Current(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2296 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2297 | ReaderMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2298 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 2299 | return; |
| 2300 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2301 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2302 | // Don't alloc while holding the lock, since allocation may need to |
| 2303 | // suspend all threads and another thread may need the dex_lock_ to |
| 2304 | // get to a suspend point. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2305 | StackHandleScope<1> hs(self); |
| 2306 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(AllocDexCache(self, dex_file))); |
| 2307 | CHECK(dex_cache.Get() != NULL) << "Failed to allocate dex cache for " << dex_file.GetLocation(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2308 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2309 | WriterMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2310 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 2311 | return; |
| 2312 | } |
| 2313 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2314 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2315 | } |
| 2316 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2317 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2318 | Handle<mirror::DexCache> dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2319 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2320 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2321 | } |
| 2322 | |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2323 | mirror::DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2324 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2325 | // Search assuming unique-ness of dex file. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2326 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2327 | mirror::DexCache* dex_cache = GetDexCache(i); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2328 | if (dex_cache->GetDexFile() == &dex_file) { |
| 2329 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2330 | } |
| 2331 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2332 | // Search matching by location name. |
| 2333 | std::string location(dex_file.GetLocation()); |
| 2334 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2335 | mirror::DexCache* dex_cache = GetDexCache(i); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2336 | if (dex_cache->GetDexFile()->GetLocation() == location) { |
| 2337 | return dex_cache; |
| 2338 | } |
| 2339 | } |
| 2340 | // Failure, dump diagnostic and abort. |
| 2341 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2342 | mirror::DexCache* dex_cache = GetDexCache(i); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2343 | LOG(ERROR) << "Registered dex file " << i << " = " << dex_cache->GetDexFile()->GetLocation(); |
| 2344 | } |
| 2345 | LOG(FATAL) << "Failed to find DexCache for DexFile " << location; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2346 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2347 | } |
| 2348 | |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2349 | void ClassLinker::FixupDexCaches(mirror::ArtMethod* resolution_method) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2350 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2351 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2352 | mirror::DexCache* dex_cache = GetDexCache(i); |
| 2353 | dex_cache->Fixup(resolution_method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2354 | } |
| 2355 | } |
| 2356 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2357 | mirror::Class* ClassLinker::CreatePrimitiveClass(Thread* self, Primitive::Type type) { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 2358 | mirror::Class* klass = AllocClass(self, mirror::Class::PrimitiveClassSize()); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2359 | if (UNLIKELY(klass == NULL)) { |
| 2360 | return NULL; |
| 2361 | } |
| 2362 | return InitializePrimitiveClass(klass, type); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2363 | } |
| 2364 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2365 | mirror::Class* ClassLinker::InitializePrimitiveClass(mirror::Class* primitive_class, |
| 2366 | Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2367 | CHECK(primitive_class != NULL); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2368 | // Must hold lock on object when initializing. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2369 | Thread* self = Thread::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2370 | StackHandleScope<1> hs(self); |
| 2371 | Handle<mirror::Class> h_class(hs.NewHandle(primitive_class)); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2372 | ObjectLock<mirror::Class> lock(self, h_class); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2373 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2374 | primitive_class->SetPrimitiveType(type); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2375 | primitive_class->SetStatus(mirror::Class::kStatusInitialized, self); |
| 2376 | const char* descriptor = Primitive::Descriptor(type); |
| 2377 | mirror::Class* existing = InsertClass(descriptor, primitive_class, Hash(descriptor)); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2378 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2379 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 2380 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2381 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2382 | // Create an array class (i.e. the class object for the array, not the |
| 2383 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 2384 | // "[Ljava/lang/String;". |
| 2385 | // |
| 2386 | // If "descriptor" refers to an array of primitives, look up the |
| 2387 | // primitive type's internally-generated class object. |
| 2388 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2389 | // "class_loader" is the class loader of the class that's referring to |
| 2390 | // us. It's used to ensure that we're looking for the element type in |
| 2391 | // the right context. It does NOT become the class loader for the |
| 2392 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2393 | // |
| 2394 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 2395 | mirror::Class* ClassLinker::CreateArrayClass(Thread* self, const char* descriptor, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2396 | Handle<mirror::ClassLoader> class_loader) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2397 | // Identify the underlying component type |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2398 | CHECK_EQ('[', descriptor[0]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2399 | StackHandleScope<2> hs(self); |
| 2400 | Handle<mirror::Class> component_type(hs.NewHandle(FindClass(self, descriptor + 1, class_loader))); |
| 2401 | if (component_type.Get() == nullptr) { |
Mathieu Chartier | c0a9ea4 | 2014-02-03 16:36:49 -0800 | [diff] [blame] | 2402 | DCHECK(self->IsExceptionPending()); |
| 2403 | return nullptr; |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2404 | } |
Ian Rogers | 2d10b20 | 2014-05-12 19:15:18 -0700 | [diff] [blame] | 2405 | if (UNLIKELY(component_type->IsPrimitiveVoid())) { |
| 2406 | ThrowNoClassDefFoundError("Attempt to create array of void primitive type"); |
| 2407 | return nullptr; |
| 2408 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2409 | // See if the component type is already loaded. Array classes are |
| 2410 | // always associated with the class loader of their underlying |
| 2411 | // element type -- an array of Strings goes with the loader for |
| 2412 | // java/lang/String -- so we need to look for it there. (The |
| 2413 | // caller should have checked for the existence of the class |
| 2414 | // before calling here, but they did so with *their* class loader, |
| 2415 | // not the component type's loader.) |
| 2416 | // |
| 2417 | // If we find it, the caller adds "loader" to the class' initiating |
| 2418 | // loader list, which should prevent us from going through this again. |
| 2419 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2420 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2421 | // are the same, because our caller (FindClass) just did the |
| 2422 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 2423 | // because we effectively do this lookup again when we add the new |
| 2424 | // class to the hash table --- necessary because of possible races with |
| 2425 | // other threads.) |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2426 | if (class_loader.Get() != component_type->GetClassLoader()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2427 | mirror::Class* new_class = LookupClass(descriptor, component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2428 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2429 | return new_class; |
| 2430 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2431 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2432 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2433 | // Fill out the fields in the Class. |
| 2434 | // |
| 2435 | // It is possible to execute some methods against arrays, because |
| 2436 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 2437 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 2438 | // |
| 2439 | // Array classes are simple enough that we don't need to do a full |
| 2440 | // link step. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2441 | auto new_class = hs.NewHandle<mirror::Class>(nullptr); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2442 | if (UNLIKELY(!init_done_)) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2443 | // Classes that were hand created, ie not by FindSystemClass |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2444 | if (strcmp(descriptor, "[Ljava/lang/Class;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2445 | new_class.Assign(GetClassRoot(kClassArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2446 | } else if (strcmp(descriptor, "[Ljava/lang/Object;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2447 | new_class.Assign(GetClassRoot(kObjectArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2448 | } else if (strcmp(descriptor, class_roots_descriptors_[kJavaLangStringArrayClass]) == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2449 | new_class.Assign(GetClassRoot(kJavaLangStringArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2450 | } else if (strcmp(descriptor, |
| 2451 | class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]) == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2452 | new_class.Assign(GetClassRoot(kJavaLangReflectArtMethodArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2453 | } else if (strcmp(descriptor, |
| 2454 | class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]) == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2455 | new_class.Assign(GetClassRoot(kJavaLangReflectArtFieldArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2456 | } else if (strcmp(descriptor, "[C") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2457 | new_class.Assign(GetClassRoot(kCharArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2458 | } else if (strcmp(descriptor, "[I") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2459 | new_class.Assign(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2460 | } |
| 2461 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2462 | if (new_class.Get() == nullptr) { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 2463 | new_class.Assign(AllocClass(self, mirror::Array::ClassSize())); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2464 | if (new_class.Get() == nullptr) { |
Mathieu Chartier | c0a9ea4 | 2014-02-03 16:36:49 -0800 | [diff] [blame] | 2465 | return nullptr; |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2466 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2467 | new_class->SetComponentType(component_type.Get()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2468 | } |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2469 | ObjectLock<mirror::Class> lock(self, new_class); // Must hold lock on object when initializing. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2470 | DCHECK(new_class->GetComponentType() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2471 | mirror::Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2472 | new_class->SetSuperClass(java_lang_Object); |
| 2473 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2474 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2475 | new_class->SetClassLoader(component_type->GetClassLoader()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 2476 | new_class->SetStatus(mirror::Class::kStatusLoaded, self); |
| 2477 | new_class->PopulateEmbeddedImtAndVTable(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2478 | new_class->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2479 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 2480 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2481 | |
| 2482 | |
| 2483 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 2484 | // interfaces. We need to set that up here, so that stuff like |
| 2485 | // "instanceof" works right. |
| 2486 | // |
| 2487 | // Note: The GC could run during the call to FindSystemClass, |
| 2488 | // so we need to make sure the class object is GC-valid while we're in |
| 2489 | // there. Do this by clearing the interface list so the GC will just |
| 2490 | // think that the entries are null. |
| 2491 | |
| 2492 | |
| 2493 | // Use the single, global copies of "interfaces" and "iftable" |
| 2494 | // (remember not to free them for arrays). |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 2495 | { |
| 2496 | mirror::IfTable* array_iftable = |
| 2497 | ReadBarrier::BarrierForRoot<mirror::IfTable, kWithReadBarrier>(&array_iftable_); |
| 2498 | CHECK(array_iftable != nullptr); |
| 2499 | new_class->SetIfTable(array_iftable); |
| 2500 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2501 | |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2502 | // Inherit access flags from the component type. |
| 2503 | int access_flags = new_class->GetComponentType()->GetAccessFlags(); |
| 2504 | // Lose any implementation detail flags; in particular, arrays aren't finalizable. |
| 2505 | access_flags &= kAccJavaFlagsMask; |
| 2506 | // Arrays can't be used as a superclass or interface, so we want to add "abstract final" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2507 | // and remove "interface". |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2508 | access_flags |= kAccAbstract | kAccFinal; |
| 2509 | access_flags &= ~kAccInterface; |
| 2510 | |
| 2511 | new_class->SetAccessFlags(access_flags); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2512 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2513 | mirror::Class* existing = InsertClass(descriptor, new_class.Get(), Hash(descriptor)); |
Mathieu Chartier | c0a9ea4 | 2014-02-03 16:36:49 -0800 | [diff] [blame] | 2514 | if (existing == nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2515 | return new_class.Get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2516 | } |
| 2517 | // Another thread must have loaded the class after we |
| 2518 | // started but before we finished. Abandon what we've |
| 2519 | // done. |
| 2520 | // |
| 2521 | // (Yes, this happens.) |
| 2522 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2523 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2524 | } |
| 2525 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2526 | mirror::Class* ClassLinker::FindPrimitiveClass(char type) { |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2527 | switch (type) { |
| 2528 | case 'B': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2529 | return GetClassRoot(kPrimitiveByte); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2530 | case 'C': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2531 | return GetClassRoot(kPrimitiveChar); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2532 | case 'D': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2533 | return GetClassRoot(kPrimitiveDouble); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2534 | case 'F': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2535 | return GetClassRoot(kPrimitiveFloat); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2536 | case 'I': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2537 | return GetClassRoot(kPrimitiveInt); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2538 | case 'J': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2539 | return GetClassRoot(kPrimitiveLong); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2540 | case 'S': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2541 | return GetClassRoot(kPrimitiveShort); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2542 | case 'Z': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2543 | return GetClassRoot(kPrimitiveBoolean); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2544 | case 'V': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2545 | return GetClassRoot(kPrimitiveVoid); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2546 | default: |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2547 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 2548 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2549 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2550 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2551 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2552 | } |
| 2553 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2554 | mirror::Class* ClassLinker::InsertClass(const char* descriptor, mirror::Class* klass, |
| 2555 | size_t hash) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2556 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2557 | mirror::DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2558 | std::string source; |
| 2559 | if (dex_cache != NULL) { |
| 2560 | source += " from "; |
| 2561 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 2562 | } |
| 2563 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 2564 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2565 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 2566 | mirror::Class* existing = |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2567 | LookupClassFromTableLocked(descriptor, klass->GetClassLoader(), hash); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2568 | if (existing != NULL) { |
| 2569 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2570 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 2571 | if (kIsDebugBuild && !klass->IsTemp() && klass->GetClassLoader() == NULL && |
| 2572 | dex_cache_image_class_lookup_required_) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2573 | // Check a class loaded with the system class loader matches one in the image if the class |
| 2574 | // is in the image. |
| 2575 | existing = LookupClassFromImage(descriptor); |
| 2576 | if (existing != NULL) { |
| 2577 | CHECK(klass == existing); |
| 2578 | } |
| 2579 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 2580 | VerifyObject(klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2581 | class_table_.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 2582 | if (log_new_class_table_roots_) { |
| 2583 | new_class_roots_.push_back(std::make_pair(hash, klass)); |
| 2584 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2585 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2586 | } |
| 2587 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 2588 | mirror::Class* ClassLinker::UpdateClass(const char* descriptor, mirror::Class* klass, |
| 2589 | size_t hash) { |
| 2590 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
| 2591 | mirror::Class* existing = |
| 2592 | LookupClassFromTableLocked(descriptor, klass->GetClassLoader(), hash); |
| 2593 | |
| 2594 | if (existing == nullptr) { |
| 2595 | CHECK(klass->IsProxyClass()); |
| 2596 | return nullptr; |
| 2597 | } |
| 2598 | |
| 2599 | CHECK_NE(existing, klass) << descriptor; |
| 2600 | CHECK(!existing->IsResolved()) << descriptor; |
| 2601 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusResolving) << descriptor; |
| 2602 | |
| 2603 | for (auto it = class_table_.lower_bound(hash), end = class_table_.end(); it != end && it->first == hash; |
| 2604 | ++it) { |
Hiroshi Yamauchi | 0fbd6e6 | 2014-07-17 16:16:31 -0700 | [diff] [blame] | 2605 | mirror::Class** root = &it->second; |
| 2606 | mirror::Class* klass = ReadBarrier::BarrierForRoot<mirror::Class, kWithReadBarrier>(root); |
| 2607 | if (klass == existing) { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 2608 | class_table_.erase(it); |
| 2609 | break; |
| 2610 | } |
| 2611 | } |
| 2612 | |
| 2613 | CHECK(!klass->IsTemp()) << descriptor; |
| 2614 | if (kIsDebugBuild && klass->GetClassLoader() == nullptr && |
| 2615 | dex_cache_image_class_lookup_required_) { |
| 2616 | // Check a class loaded with the system class loader matches one in the image if the class |
| 2617 | // is in the image. |
| 2618 | existing = LookupClassFromImage(descriptor); |
| 2619 | if (existing != nullptr) { |
| 2620 | CHECK(klass == existing) << descriptor; |
| 2621 | } |
| 2622 | } |
| 2623 | VerifyObject(klass); |
| 2624 | |
| 2625 | class_table_.insert(std::make_pair(hash, klass)); |
| 2626 | if (log_new_class_table_roots_) { |
| 2627 | new_class_roots_.push_back(std::make_pair(hash, klass)); |
| 2628 | } |
| 2629 | |
| 2630 | return existing; |
| 2631 | } |
| 2632 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2633 | bool ClassLinker::RemoveClass(const char* descriptor, const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2634 | size_t hash = Hash(descriptor); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2635 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 2636 | for (auto it = class_table_.lower_bound(hash), end = class_table_.end(); |
| 2637 | it != end && it->first == hash; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2638 | ++it) { |
Hiroshi Yamauchi | a91a4bc | 2014-06-13 16:44:55 -0700 | [diff] [blame] | 2639 | mirror::Class** root = &it->second; |
| 2640 | mirror::Class* klass = ReadBarrier::BarrierForRoot<mirror::Class, kWithReadBarrier>(root); |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2641 | if (klass->GetClassLoader() == class_loader && klass->DescriptorEquals(descriptor)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2642 | class_table_.erase(it); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2643 | return true; |
| 2644 | } |
| 2645 | } |
| 2646 | return false; |
| 2647 | } |
| 2648 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2649 | mirror::Class* ClassLinker::LookupClass(const char* descriptor, |
| 2650 | const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2651 | size_t hash = Hash(descriptor); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2652 | { |
| 2653 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
| 2654 | mirror::Class* result = LookupClassFromTableLocked(descriptor, class_loader, hash); |
| 2655 | if (result != NULL) { |
| 2656 | return result; |
| 2657 | } |
Sameer Abu Asal | 2c6de22 | 2013-05-02 17:38:59 -0700 | [diff] [blame] | 2658 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2659 | if (class_loader != NULL || !dex_cache_image_class_lookup_required_) { |
| 2660 | return NULL; |
| 2661 | } else { |
| 2662 | // Lookup failed but need to search dex_caches_. |
| 2663 | mirror::Class* result = LookupClassFromImage(descriptor); |
| 2664 | if (result != NULL) { |
| 2665 | InsertClass(descriptor, result, hash); |
| 2666 | } else { |
| 2667 | // Searching the image dex files/caches failed, we don't want to get into this situation |
| 2668 | // often as map searches are faster, so after kMaxFailedDexCacheLookups move all image |
| 2669 | // classes into the class table. |
| 2670 | const int32_t kMaxFailedDexCacheLookups = 1000; |
| 2671 | if (++failed_dex_cache_class_lookups_ > kMaxFailedDexCacheLookups) { |
| 2672 | MoveImageClassesToClassTable(); |
| 2673 | } |
| 2674 | } |
| 2675 | return result; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2676 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2677 | } |
| 2678 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2679 | mirror::Class* ClassLinker::LookupClassFromTableLocked(const char* descriptor, |
| 2680 | const mirror::ClassLoader* class_loader, |
| 2681 | size_t hash) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2682 | auto end = class_table_.end(); |
| 2683 | for (auto it = class_table_.lower_bound(hash); it != end && it->first == hash; ++it) { |
Hiroshi Yamauchi | a91a4bc | 2014-06-13 16:44:55 -0700 | [diff] [blame] | 2684 | mirror::Class** root = &it->second; |
| 2685 | mirror::Class* klass = ReadBarrier::BarrierForRoot<mirror::Class, kWithReadBarrier>(root); |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2686 | if (klass->GetClassLoader() == class_loader && klass->DescriptorEquals(descriptor)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2687 | if (kIsDebugBuild) { |
| 2688 | // Check for duplicates in the table. |
| 2689 | for (++it; it != end && it->first == hash; ++it) { |
Hiroshi Yamauchi | a91a4bc | 2014-06-13 16:44:55 -0700 | [diff] [blame] | 2690 | mirror::Class** root2 = &it->second; |
| 2691 | mirror::Class* klass2 = ReadBarrier::BarrierForRoot<mirror::Class, kWithReadBarrier>(root2); |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2692 | CHECK(!(klass2->GetClassLoader() == class_loader && |
| 2693 | klass2->DescriptorEquals(descriptor))) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2694 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
| 2695 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2696 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2697 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2698 | return klass; |
| 2699 | } |
| 2700 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2701 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2702 | } |
| 2703 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2704 | static mirror::ObjectArray<mirror::DexCache>* GetImageDexCaches() |
| 2705 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2706 | gc::space::ImageSpace* image = Runtime::Current()->GetHeap()->GetImageSpace(); |
| 2707 | CHECK(image != NULL); |
| 2708 | mirror::Object* root = image->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 2709 | return root->AsObjectArray<mirror::DexCache>(); |
| 2710 | } |
| 2711 | |
| 2712 | void ClassLinker::MoveImageClassesToClassTable() { |
| 2713 | Thread* self = Thread::Current(); |
| 2714 | WriterMutexLock mu(self, *Locks::classlinker_classes_lock_); |
| 2715 | if (!dex_cache_image_class_lookup_required_) { |
| 2716 | return; // All dex cache classes are already in the class table. |
| 2717 | } |
| 2718 | const char* old_no_suspend_cause = |
| 2719 | self->StartAssertNoThreadSuspension("Moving image classes to class table"); |
| 2720 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2721 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
| 2722 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2723 | mirror::ObjectArray<mirror::Class>* types = dex_cache->GetResolvedTypes(); |
| 2724 | for (int32_t j = 0; j < types->GetLength(); j++) { |
| 2725 | mirror::Class* klass = types->Get(j); |
| 2726 | if (klass != NULL) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2727 | DCHECK(klass->GetClassLoader() == NULL); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 2728 | std::string descriptor = klass->GetDescriptor(); |
| 2729 | size_t hash = Hash(descriptor.c_str()); |
| 2730 | mirror::Class* existing = LookupClassFromTableLocked(descriptor.c_str(), NULL, hash); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2731 | if (existing != NULL) { |
| 2732 | CHECK(existing == klass) << PrettyClassAndClassLoader(existing) << " != " |
| 2733 | << PrettyClassAndClassLoader(klass); |
| 2734 | } else { |
| 2735 | class_table_.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 2736 | if (log_new_class_table_roots_) { |
| 2737 | new_class_roots_.push_back(std::make_pair(hash, klass)); |
| 2738 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2739 | } |
| 2740 | } |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2741 | } |
| 2742 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2743 | dex_cache_image_class_lookup_required_ = false; |
| 2744 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2745 | } |
| 2746 | |
| 2747 | mirror::Class* ClassLinker::LookupClassFromImage(const char* descriptor) { |
| 2748 | Thread* self = Thread::Current(); |
| 2749 | const char* old_no_suspend_cause = |
| 2750 | self->StartAssertNoThreadSuspension("Image class lookup"); |
| 2751 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
| 2752 | for (int32_t i = 0; i < dex_caches->GetLength(); ++i) { |
| 2753 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2754 | const DexFile* dex_file = dex_cache->GetDexFile(); |
Vladimir Marko | 801a811 | 2014-01-06 14:28:16 +0000 | [diff] [blame] | 2755 | // Try binary searching the string/type index. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2756 | const DexFile::StringId* string_id = dex_file->FindStringId(descriptor); |
| 2757 | if (string_id != NULL) { |
| 2758 | const DexFile::TypeId* type_id = |
| 2759 | dex_file->FindTypeId(dex_file->GetIndexForStringId(*string_id)); |
| 2760 | if (type_id != NULL) { |
| 2761 | uint16_t type_idx = dex_file->GetIndexForTypeId(*type_id); |
| 2762 | mirror::Class* klass = dex_cache->GetResolvedType(type_idx); |
| 2763 | if (klass != NULL) { |
| 2764 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2765 | return klass; |
| 2766 | } |
| 2767 | } |
| 2768 | } |
| 2769 | } |
| 2770 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2771 | return NULL; |
| 2772 | } |
| 2773 | |
| 2774 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<mirror::Class*>& result) { |
| 2775 | result.clear(); |
| 2776 | if (dex_cache_image_class_lookup_required_) { |
| 2777 | MoveImageClassesToClassTable(); |
| 2778 | } |
| 2779 | size_t hash = Hash(descriptor); |
| 2780 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2781 | for (auto it = class_table_.lower_bound(hash), end = class_table_.end(); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 2782 | it != end && it->first == hash; ++it) { |
Hiroshi Yamauchi | a91a4bc | 2014-06-13 16:44:55 -0700 | [diff] [blame] | 2783 | mirror::Class** root = &it->second; |
| 2784 | mirror::Class* klass = ReadBarrier::BarrierForRoot<mirror::Class, kWithReadBarrier>(root); |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2785 | if (klass->DescriptorEquals(descriptor)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2786 | result.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2787 | } |
| 2788 | } |
| 2789 | } |
| 2790 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 2791 | void ClassLinker::VerifyClass(Handle<mirror::Class> klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2792 | // TODO: assert that the monitor on the Class is held |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2793 | Thread* self = Thread::Current(); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2794 | ObjectLock<mirror::Class> lock(self, klass); |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2795 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2796 | // Don't attempt to re-verify if already sufficiently verified. |
| 2797 | if (klass->IsVerified() || |
| 2798 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2799 | return; |
| 2800 | } |
| 2801 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2802 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2803 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2804 | if (klass->IsErroneous()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2805 | ThrowEarlierClassFailure(klass.Get()); |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2806 | return; |
| 2807 | } |
| 2808 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2809 | if (klass->GetStatus() == mirror::Class::kStatusResolved) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2810 | klass->SetStatus(mirror::Class::kStatusVerifying, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2811 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2812 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime) |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2813 | << PrettyClass(klass.Get()); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2814 | CHECK(!Runtime::Current()->IsCompiler()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2815 | klass->SetStatus(mirror::Class::kStatusVerifyingAtRuntime, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2816 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2817 | |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 2818 | // Skip verification if disabled. |
| 2819 | if (!Runtime::Current()->IsVerificationEnabled()) { |
| 2820 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
| 2821 | return; |
| 2822 | } |
| 2823 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2824 | // Verify super class. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2825 | StackHandleScope<2> hs(self); |
| 2826 | Handle<mirror::Class> super(hs.NewHandle(klass->GetSuperClass())); |
| 2827 | if (super.Get() != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2828 | // Acquire lock to prevent races on verifying the super class. |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2829 | ObjectLock<mirror::Class> lock(self, super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2830 | |
| 2831 | if (!super->IsVerified() && !super->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2832 | VerifyClass(super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2833 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2834 | if (!super->IsCompileTimeVerified()) { |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 2835 | std::string error_msg( |
| 2836 | StringPrintf("Rejecting class %s that attempts to sub-class erroneous class %s", |
| 2837 | PrettyDescriptor(klass.Get()).c_str(), |
| 2838 | PrettyDescriptor(super.Get()).c_str())); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2839 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2840 | Handle<mirror::Throwable> cause(hs.NewHandle(self->GetException(nullptr))); |
| 2841 | if (cause.Get() != nullptr) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2842 | self->ClearException(); |
| 2843 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2844 | ThrowVerifyError(klass.Get(), "%s", error_msg.c_str()); |
| 2845 | if (cause.Get() != nullptr) { |
| 2846 | self->GetException(nullptr)->SetCause(cause.Get()); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2847 | } |
Jeff Hao | 22cb09b | 2013-12-12 14:29:15 -0800 | [diff] [blame] | 2848 | ClassReference ref(klass->GetDexCache()->GetDexFile(), klass->GetDexClassDefIndex()); |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame] | 2849 | if (Runtime::Current()->IsCompiler()) { |
| 2850 | Runtime::Current()->GetCompilerCallbacks()->ClassRejected(ref); |
| 2851 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2852 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2853 | return; |
| 2854 | } |
| 2855 | } |
| 2856 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2857 | // 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] | 2858 | const DexFile& dex_file = *klass->GetDexCache()->GetDexFile(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2859 | mirror::Class::Status oat_file_class_status(mirror::Class::kStatusNotReady); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2860 | bool preverified = VerifyClassUsingOatFile(dex_file, klass.Get(), oat_file_class_status); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2861 | if (oat_file_class_status == mirror::Class::kStatusError) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2862 | VLOG(class_linker) << "Skipping runtime verification of erroneous class " |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2863 | << PrettyDescriptor(klass.Get()) << " in " |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2864 | << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2865 | ThrowVerifyError(klass.Get(), "Rejecting class %s because it failed compile-time verification", |
| 2866 | PrettyDescriptor(klass.Get()).c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2867 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2868 | return; |
| 2869 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2870 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2871 | std::string error_msg; |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2872 | if (!preverified) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2873 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass.Get(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2874 | Runtime::Current()->IsCompiler(), |
| 2875 | &error_msg); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2876 | } |
| 2877 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2878 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2879 | VLOG(class_linker) << "Soft verification failure in class " << PrettyDescriptor(klass.Get()) |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2880 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2881 | << " because: " << error_msg; |
| 2882 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2883 | self->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2884 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2885 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2886 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2887 | // Even though there were no verifier failures we need to respect whether the super-class |
| 2888 | // was verified or requiring runtime reverification. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2889 | if (super.Get() == NULL || super->IsVerified()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2890 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2891 | } else { |
| 2892 | CHECK_EQ(super->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2893 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2894 | // Pretend a soft failure occured so that we don't consider the class verified below. |
| 2895 | verifier_failure = verifier::MethodVerifier::kSoftFailure; |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2896 | } |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2897 | } else { |
| 2898 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2899 | // Soft failures at compile time should be retried at runtime. Soft |
| 2900 | // failures at runtime will be handled by slow paths in the generated |
| 2901 | // code. Set status accordingly. |
| 2902 | if (Runtime::Current()->IsCompiler()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2903 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2904 | } else { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2905 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2906 | } |
| 2907 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2908 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2909 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass.Get()) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2910 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2911 | << " because: " << error_msg; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2912 | self->AssertNoPendingException(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2913 | ThrowVerifyError(klass.Get(), "%s", error_msg.c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2914 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2915 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2916 | if (preverified || verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2917 | // Class is verified so we don't need to do any access check on its methods. |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2918 | // Let the interpreter know it by setting the kAccPreverified flag onto each |
| 2919 | // method. |
| 2920 | // Note: we're going here during compilation and at runtime. When we set the |
| 2921 | // kAccPreverified flag when compiling image classes, the flag is recorded |
| 2922 | // in the image and is set when loading the image. |
| 2923 | klass->SetPreverifiedFlagOnAllMethods(); |
| 2924 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2925 | } |
| 2926 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2927 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, mirror::Class* klass, |
| 2928 | mirror::Class::Status& oat_file_class_status) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2929 | // If we're compiling, we can only verify the class using the oat file if |
| 2930 | // we are not compiling the image or if the class we're verifying is not part of |
| 2931 | // the app. In other words, we will only check for preverification of bootclasspath |
| 2932 | // classes. |
| 2933 | if (Runtime::Current()->IsCompiler()) { |
| 2934 | // Are we compiling the bootclasspath? |
| 2935 | if (!Runtime::Current()->UseCompileTimeClassPath()) { |
| 2936 | return false; |
| 2937 | } |
| 2938 | // We are compiling an app (not the image). |
| 2939 | |
| 2940 | // Is this an app class? (I.e. not a bootclasspath class) |
| 2941 | if (klass->GetClassLoader() != NULL) { |
| 2942 | return false; |
| 2943 | } |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2944 | } |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2945 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2946 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Anwar Ghuloum | ad256bb | 2013-07-18 14:58:55 -0700 | [diff] [blame] | 2947 | // Make this work with gtests, which do not set up the image properly. |
| 2948 | // TODO: we should clean up gtests to set up the image path properly. |
| 2949 | if (Runtime::Current()->IsCompiler() && (oat_file == NULL)) { |
| 2950 | return false; |
| 2951 | } |
| 2952 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2953 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 2954 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 2955 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation().c_str(), |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 2956 | &dex_location_checksum); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2957 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2958 | uint16_t class_def_index = klass->GetDexClassDefIndex(); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 2959 | oat_file_class_status = oat_dex_file->GetOatClass(class_def_index).GetStatus(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2960 | if (oat_file_class_status == mirror::Class::kStatusVerified || |
| 2961 | oat_file_class_status == mirror::Class::kStatusInitialized) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2962 | return true; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2963 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2964 | if (oat_file_class_status == mirror::Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2965 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2966 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2967 | // class ... { |
| 2968 | // Foo x; |
| 2969 | // .... () { |
| 2970 | // if (...) { |
| 2971 | // v1 gets assigned a type of resolved class Foo |
| 2972 | // } else { |
| 2973 | // v1 gets assigned a type of unresolved class Bar |
| 2974 | // } |
| 2975 | // iput x = v1 |
| 2976 | // } } |
| 2977 | // when we merge v1 following the if-the-else it results in Conflict |
| 2978 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2979 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2980 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2981 | // at compile time). |
| 2982 | return false; |
| 2983 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2984 | if (oat_file_class_status == mirror::Class::kStatusError) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2985 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2986 | // in the class. These errors are unrecoverable. |
| 2987 | return false; |
| 2988 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2989 | if (oat_file_class_status == mirror::Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2990 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2991 | // not loading the class. |
| 2992 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2993 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2994 | return false; |
| 2995 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2996 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2997 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 2998 | << klass->GetDescriptor(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2999 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 3000 | return false; |
| 3001 | } |
| 3002 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3003 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3004 | Handle<mirror::Class> klass) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 3005 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 3006 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 3007 | } |
| 3008 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 3009 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 3010 | } |
| 3011 | } |
| 3012 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3013 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3014 | mirror::ArtMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 3015 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 3016 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 3017 | if (code_item == NULL) { |
| 3018 | return; // native or abstract method |
| 3019 | } |
| 3020 | if (code_item->tries_size_ == 0) { |
| 3021 | return; // nothing to process |
| 3022 | } |
| 3023 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 3024 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 3025 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 3026 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 3027 | CatchHandlerIterator iterator(handlers_ptr); |
| 3028 | for (; iterator.HasNext(); iterator.Next()) { |
| 3029 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 3030 | // unresolved exception types will be ignored by exception delivery |
| 3031 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3032 | mirror::Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 3033 | if (exception_type == NULL) { |
| 3034 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3035 | Thread::Current()->ClearException(); |
| 3036 | } |
| 3037 | } |
| 3038 | } |
| 3039 | handlers_ptr = iterator.EndDataPointer(); |
| 3040 | } |
| 3041 | } |
| 3042 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3043 | static void CheckProxyConstructor(mirror::ArtMethod* constructor); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3044 | static void CheckProxyMethod(Handle<mirror::ArtMethod> method, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3045 | Handle<mirror::ArtMethod> prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3046 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 3047 | mirror::Class* ClassLinker::CreateProxyClass(ScopedObjectAccessAlreadyRunnable& soa, jstring name, |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3048 | jobjectArray interfaces, jobject loader, |
| 3049 | jobjectArray methods, jobjectArray throws) { |
| 3050 | Thread* self = soa.Self(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3051 | StackHandleScope<8> hs(self); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3052 | Handle<mirror::Class> klass(hs.NewHandle( |
| 3053 | AllocClass(self, GetClassRoot(kJavaLangClass), sizeof(mirror::Class)))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3054 | if (klass.Get() == NULL) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3055 | CHECK(self->IsExceptionPending()); // OOME. |
| 3056 | return NULL; |
| 3057 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3058 | DCHECK(klass->GetClass() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3059 | klass->SetObjectSize(sizeof(mirror::Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3060 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3061 | klass->SetClassLoader(soa.Decode<mirror::ClassLoader*>(loader)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3062 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3063 | klass->SetName(soa.Decode<mirror::String*>(name)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3064 | mirror::Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3065 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3066 | klass->SetStatus(mirror::Class::kStatusIdx, self); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3067 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3068 | // Instance fields are inherited, but we add a couple of static fields... |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3069 | { |
| 3070 | mirror::ObjectArray<mirror::ArtField>* sfields = AllocArtFieldArray(self, 2); |
| 3071 | if (UNLIKELY(sfields == NULL)) { |
| 3072 | CHECK(self->IsExceptionPending()); // OOME. |
| 3073 | return NULL; |
| 3074 | } |
| 3075 | klass->SetSFields(sfields); |
| 3076 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3077 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 3078 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3079 | Handle<mirror::ArtField> interfaces_sfield(hs.NewHandle(AllocArtField(self))); |
| 3080 | if (UNLIKELY(interfaces_sfield.Get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3081 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3082 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3083 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3084 | klass->SetStaticField(0, interfaces_sfield.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3085 | interfaces_sfield->SetDexFieldIndex(0); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3086 | interfaces_sfield->SetDeclaringClass(klass.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3087 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 3088 | // 2. Create a static field 'throws' that holds exceptions thrown by our methods. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3089 | Handle<mirror::ArtField> throws_sfield(hs.NewHandle(AllocArtField(self))); |
| 3090 | if (UNLIKELY(throws_sfield.Get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3091 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3092 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3093 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3094 | klass->SetStaticField(1, throws_sfield.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3095 | throws_sfield->SetDexFieldIndex(1); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3096 | throws_sfield->SetDeclaringClass(klass.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3097 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3098 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3099 | // Proxies have 1 direct method, the constructor |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3100 | { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3101 | mirror::ObjectArray<mirror::ArtMethod>* directs = AllocArtMethodArray(self, 1); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3102 | if (UNLIKELY(directs == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3103 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3104 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3105 | } |
| 3106 | klass->SetDirectMethods(directs); |
| 3107 | mirror::ArtMethod* constructor = CreateProxyConstructor(self, klass, proxy_class); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3108 | if (UNLIKELY(constructor == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3109 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3110 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3111 | } |
| 3112 | klass->SetDirectMethod(0, constructor); |
| 3113 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3114 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3115 | // Create virtual method using specified prototypes. |
| 3116 | size_t num_virtual_methods = |
| 3117 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods)->GetLength(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3118 | { |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3119 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = AllocArtMethodArray(self, |
| 3120 | num_virtual_methods); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3121 | if (UNLIKELY(virtuals == NULL)) { |
| 3122 | CHECK(self->IsExceptionPending()); // OOME. |
| 3123 | return NULL; |
| 3124 | } |
| 3125 | klass->SetVirtualMethods(virtuals); |
| 3126 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3127 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3128 | StackHandleScope<1> hs(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3129 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 3130 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3131 | Handle<mirror::ArtMethod> prototype(hs.NewHandle(decoded_methods->Get(i))); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3132 | mirror::ArtMethod* clone = CreateProxyMethod(self, klass, prototype); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3133 | if (UNLIKELY(clone == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3134 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3135 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3136 | } |
| 3137 | klass->SetVirtualMethod(i, clone); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3138 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3139 | |
| 3140 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3141 | klass->SetStatus(mirror::Class::kStatusLoaded, self); // Now effectively in the loaded state. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3142 | self->AssertNoPendingException(); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3143 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3144 | std::string descriptor(GetDescriptorForProxy(klass.Get())); |
| 3145 | mirror::Class* new_class = nullptr; |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 3146 | { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3147 | ObjectLock<mirror::Class> resolution_lock(self, klass); // Must hold lock on object when resolved. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3148 | // Link the fields and virtual methods, creating vtable and iftables |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3149 | Handle<mirror::ObjectArray<mirror::Class> > h_interfaces( |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3150 | hs.NewHandle(soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces))); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3151 | if (!LinkClass(self, descriptor.c_str(), klass, h_interfaces, &new_class)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3152 | klass->SetStatus(mirror::Class::kStatusError, self); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3153 | return nullptr; |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3154 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3155 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3156 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3157 | CHECK(klass->IsRetired()); |
| 3158 | CHECK_NE(klass.Get(), new_class); |
| 3159 | klass.Assign(new_class); |
| 3160 | |
| 3161 | CHECK_EQ(interfaces_sfield->GetDeclaringClass(), new_class); |
| 3162 | interfaces_sfield->SetObject<false>(klass.Get(), soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 3163 | CHECK_EQ(throws_sfield->GetDeclaringClass(), new_class); |
| 3164 | throws_sfield->SetObject<false>(klass.Get(), soa.Decode<mirror::ObjectArray<mirror::ObjectArray<mirror::Class> >*>(throws)); |
| 3165 | |
| 3166 | { |
| 3167 | // Lock on klass is released. Lock new class object. |
| 3168 | ObjectLock<mirror::Class> initialization_lock(self, klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3169 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 3170 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3171 | |
| 3172 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 3173 | if (kIsDebugBuild) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3174 | CHECK(klass->GetIFields() == nullptr); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3175 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 3176 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3177 | StackHandleScope<2> hs(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3178 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 3179 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3180 | Handle<mirror::ArtMethod> prototype(hs.NewHandle(decoded_methods->Get(i))); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3181 | Handle<mirror::ArtMethod> virtual_method(hs.NewHandle(klass->GetVirtualMethod(i))); |
| 3182 | CheckProxyMethod(virtual_method, prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3183 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3184 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3185 | mirror::String* decoded_name = soa.Decode<mirror::String*>(name); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3186 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3187 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3188 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 3189 | |
| 3190 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3191 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 3192 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3193 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3194 | CHECK_EQ(klass.Get()->GetInterfaces(), |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3195 | soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3196 | CHECK_EQ(klass.Get()->GetThrows(), |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3197 | soa.Decode<mirror::ObjectArray<mirror::ObjectArray<mirror::Class>>*>(throws)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3198 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3199 | mirror::Class* existing = InsertClass(descriptor.c_str(), klass.Get(), Hash(descriptor.c_str())); |
Mathieu Chartier | 31b9d66 | 2013-10-14 11:53:12 -0700 | [diff] [blame] | 3200 | CHECK(existing == nullptr); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3201 | return klass.Get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3202 | } |
| 3203 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3204 | std::string ClassLinker::GetDescriptorForProxy(mirror::Class* proxy_class) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3205 | DCHECK(proxy_class->IsProxyClass()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3206 | mirror::String* name = proxy_class->GetName(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3207 | DCHECK(name != NULL); |
| 3208 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 3209 | } |
| 3210 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3211 | mirror::ArtMethod* ClassLinker::FindMethodForProxy(mirror::Class* proxy_class, |
| 3212 | mirror::ArtMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3213 | DCHECK(proxy_class->IsProxyClass()); |
| 3214 | DCHECK(proxy_method->IsProxyMethod()); |
| 3215 | // Locate the dex cache of the original interface/Object |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3216 | mirror::DexCache* dex_cache = NULL; |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3217 | { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3218 | mirror::ObjectArray<mirror::Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 3219 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3220 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 3221 | mirror::DexCache* a_dex_cache = GetDexCache(i); |
| 3222 | if (a_dex_cache->GetResolvedTypes() == resolved_types) { |
| 3223 | dex_cache = a_dex_cache; |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3224 | break; |
| 3225 | } |
| 3226 | } |
| 3227 | } |
| 3228 | CHECK(dex_cache != NULL); |
| 3229 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3230 | mirror::ArtMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3231 | CHECK(resolved_method != NULL); |
| 3232 | return resolved_method; |
| 3233 | } |
| 3234 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3235 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3236 | mirror::ArtMethod* ClassLinker::CreateProxyConstructor(Thread* self, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3237 | Handle<mirror::Class> klass, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3238 | mirror::Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3239 | // Create constructor for Proxy that must initialize h |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3240 | mirror::ObjectArray<mirror::ArtMethod>* proxy_direct_methods = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3241 | proxy_class->GetDirectMethods(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3242 | CHECK_EQ(proxy_direct_methods->GetLength(), 16); |
| 3243 | mirror::ArtMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3244 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 3245 | // code_ too) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3246 | mirror::ArtMethod* constructor = |
| 3247 | down_cast<mirror::ArtMethod*>(proxy_constructor->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3248 | if (constructor == NULL) { |
| 3249 | CHECK(self->IsExceptionPending()); // OOME. |
| 3250 | return NULL; |
| 3251 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3252 | // Make this constructor public and fix the class to be our Proxy version |
| 3253 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3254 | constructor->SetDeclaringClass(klass.Get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3255 | return constructor; |
| 3256 | } |
| 3257 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3258 | static void CheckProxyConstructor(mirror::ArtMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3259 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3260 | CHECK(constructor->IsConstructor()); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3261 | CHECK_STREQ(constructor->GetName(), "<init>"); |
| 3262 | CHECK_STREQ(constructor->GetSignature().ToString().c_str(), |
| 3263 | "(Ljava/lang/reflect/InvocationHandler;)V"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3264 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3265 | } |
| 3266 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3267 | mirror::ArtMethod* ClassLinker::CreateProxyMethod(Thread* self, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3268 | Handle<mirror::Class> klass, |
| 3269 | Handle<mirror::ArtMethod> prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3270 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 3271 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3272 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3273 | prototype.Get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3274 | // 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] | 3275 | // as necessary |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3276 | mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(prototype->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3277 | if (UNLIKELY(method == NULL)) { |
| 3278 | CHECK(self->IsExceptionPending()); // OOME. |
| 3279 | return NULL; |
| 3280 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3281 | |
| 3282 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 3283 | // the intersection of throw exceptions as defined in Proxy |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3284 | method->SetDeclaringClass(klass.Get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3285 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3286 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3287 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 3288 | // related parameters from this method. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3289 | method->SetEntryPointFromQuickCompiledCode(GetQuickProxyInvokeHandler()); |
| 3290 | method->SetEntryPointFromPortableCompiledCode(GetPortableProxyInvokeHandler()); |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 3291 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3292 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3293 | return method; |
| 3294 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3295 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3296 | static void CheckProxyMethod(Handle<mirror::ArtMethod> method, Handle<mirror::ArtMethod> prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3297 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3298 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3299 | CHECK(!prototype->IsFinal()); |
| 3300 | CHECK(method->IsFinal()); |
| 3301 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3302 | |
| 3303 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 3304 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 3305 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 3306 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 3307 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3308 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 3309 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3310 | MethodHelper mh(method); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3311 | MethodHelper mh2(prototype); |
| 3312 | CHECK_STREQ(method->GetName(), prototype->GetName()); |
| 3313 | CHECK_STREQ(method->GetShorty(), prototype->GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3314 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3315 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3316 | } |
| 3317 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3318 | static bool CanWeInitializeClass(mirror::Class* klass, bool can_init_statics, |
| 3319 | bool can_init_parents) |
| 3320 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 3321 | if (can_init_statics && can_init_parents) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3322 | return true; |
| 3323 | } |
| 3324 | if (!can_init_statics) { |
| 3325 | // Check if there's a class initializer. |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 3326 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3327 | if (clinit != NULL) { |
| 3328 | return false; |
| 3329 | } |
| 3330 | // Check if there are encoded static values needing initialization. |
| 3331 | if (klass->NumStaticFields() != 0) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 3332 | const DexFile::ClassDef* dex_class_def = klass->GetClassDef(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3333 | DCHECK(dex_class_def != NULL); |
| 3334 | if (dex_class_def->static_values_off_ != 0) { |
| 3335 | return false; |
| 3336 | } |
| 3337 | } |
| 3338 | } |
| 3339 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 3340 | mirror::Class* super_class = klass->GetSuperClass(); |
| 3341 | if (!can_init_parents && !super_class->IsInitialized()) { |
| 3342 | return false; |
| 3343 | } else { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 3344 | if (!CanWeInitializeClass(super_class, can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3345 | return false; |
| 3346 | } |
| 3347 | } |
| 3348 | } |
| 3349 | return true; |
| 3350 | } |
| 3351 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3352 | bool ClassLinker::IsInitialized() const { |
| 3353 | return init_done_; |
| 3354 | } |
| 3355 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3356 | bool ClassLinker::InitializeClass(Handle<mirror::Class> klass, bool can_init_statics, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3357 | bool can_init_parents) { |
| 3358 | // see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol |
| 3359 | |
| 3360 | // Are we already initialized and therefore done? |
| 3361 | // Note: we differ from the JLS here as we don't do this under the lock, this is benign as |
| 3362 | // an initialized class will never change its state. |
| 3363 | if (klass->IsInitialized()) { |
| 3364 | return true; |
| 3365 | } |
| 3366 | |
| 3367 | // Fast fail if initialization requires a full runtime. Not part of the JLS. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3368 | if (!CanWeInitializeClass(klass.Get(), can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3369 | return false; |
| 3370 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3371 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 3372 | Thread* self = Thread::Current(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3373 | uint64_t t0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3374 | { |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 3375 | ObjectLock<mirror::Class> lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3376 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3377 | // Re-check under the lock in case another thread initialized ahead of us. |
| 3378 | if (klass->IsInitialized()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3379 | return true; |
| 3380 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3381 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3382 | // Was the class already found to be erroneous? Done under the lock to match the JLS. |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3383 | if (klass->IsErroneous()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3384 | ThrowEarlierClassFailure(klass.Get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3385 | return false; |
| 3386 | } |
| 3387 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3388 | CHECK(klass->IsResolved()) << PrettyClass(klass.Get()) << ": state=" << klass->GetStatus(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3389 | |
| 3390 | if (!klass->IsVerified()) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 3391 | VerifyClass(klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3392 | if (!klass->IsVerified()) { |
| 3393 | // We failed to verify, expect either the klass to be erroneous or verification failed at |
| 3394 | // compile time. |
| 3395 | if (klass->IsErroneous()) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3396 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3397 | } else { |
| 3398 | CHECK(Runtime::Current()->IsCompiler()); |
| 3399 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3400 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3401 | return false; |
| 3402 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3403 | } |
| 3404 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3405 | // If the class is kStatusInitializing, either this thread is |
| 3406 | // initializing higher up the stack or another thread has beat us |
| 3407 | // to initializing and we need to wait. Either way, this |
| 3408 | // invocation of InitializeClass will not be responsible for |
| 3409 | // running <clinit> and will return. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3410 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 3411 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3412 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3413 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3414 | return true; |
| 3415 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3416 | // No. That's fine. Wait for another thread to finish initializing. |
| 3417 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3418 | } |
| 3419 | |
| 3420 | if (!ValidateSuperClassDescriptors(klass)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3421 | klass->SetStatus(mirror::Class::kStatusError, self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3422 | return false; |
| 3423 | } |
| 3424 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3425 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusVerified) << PrettyClass(klass.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3426 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3427 | // From here out other threads may observe that we're initializing and so changes of state |
| 3428 | // require the a notification. |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3429 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3430 | klass->SetStatus(mirror::Class::kStatusInitializing, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3431 | |
| 3432 | t0 = NanoTime(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3433 | } |
| 3434 | |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 3435 | // Initialize super classes, must be done while initializing for the JLS. |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3436 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 3437 | mirror::Class* super_class = klass->GetSuperClass(); |
| 3438 | if (!super_class->IsInitialized()) { |
| 3439 | CHECK(!super_class->IsInterface()); |
| 3440 | CHECK(can_init_parents); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3441 | StackHandleScope<1> hs(self); |
| 3442 | Handle<mirror::Class> handle_scope_super(hs.NewHandle(super_class)); |
| 3443 | bool super_initialized = InitializeClass(handle_scope_super, can_init_statics, true); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3444 | if (!super_initialized) { |
| 3445 | // The super class was verified ahead of entering initializing, we should only be here if |
| 3446 | // the super class became erroneous due to initialization. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3447 | CHECK(handle_scope_super->IsErroneous() && self->IsExceptionPending()) |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3448 | << "Super class initialization failed for " |
| 3449 | << PrettyDescriptor(handle_scope_super.Get()) |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3450 | << " that has unexpected status " << handle_scope_super->GetStatus() |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3451 | << "\nPending exception:\n" |
| 3452 | << (self->GetException(NULL) != NULL ? self->GetException(NULL)->Dump() : ""); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 3453 | ObjectLock<mirror::Class> lock(self, klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3454 | // Initialization failed because the super-class is erroneous. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3455 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3456 | return false; |
| 3457 | } |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 3458 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3459 | } |
| 3460 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3461 | if (klass->NumStaticFields() > 0) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 3462 | const DexFile::ClassDef* dex_class_def = klass->GetClassDef(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3463 | CHECK(dex_class_def != NULL); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 3464 | const DexFile& dex_file = klass->GetDexFile(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3465 | StackHandleScope<2> hs(self); |
| 3466 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(klass->GetClassLoader())); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 3467 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(klass->GetDexCache())); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3468 | EncodedStaticFieldValueIterator it(dex_file, &dex_cache, &class_loader, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3469 | this, *dex_class_def); |
| 3470 | if (it.HasNext()) { |
| 3471 | CHECK(can_init_statics); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3472 | // We reordered the fields, so we need to be able to map the |
| 3473 | // field indexes to the right fields. |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3474 | SafeMap<uint32_t, mirror::ArtField*> field_map; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3475 | ConstructFieldMap(dex_file, *dex_class_def, klass.Get(), field_map); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3476 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3477 | if (Runtime::Current()->IsActiveTransaction()) { |
| 3478 | it.ReadValueToField<true>(field_map.Get(i)); |
| 3479 | } else { |
| 3480 | it.ReadValueToField<false>(field_map.Get(i)); |
| 3481 | } |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3482 | } |
| 3483 | } |
| 3484 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3485 | |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 3486 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3487 | if (clinit != NULL) { |
| 3488 | CHECK(can_init_statics); |
Ian Rogers | 5d27faf | 2014-05-02 17:17:18 -0700 | [diff] [blame] | 3489 | JValue result; |
| 3490 | clinit->Invoke(self, NULL, 0, &result, "V"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3491 | } |
| 3492 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3493 | uint64_t t1 = NanoTime(); |
| 3494 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3495 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3496 | { |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 3497 | ObjectLock<mirror::Class> lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3498 | |
| 3499 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3500 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3501 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3502 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3503 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3504 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 3505 | RuntimeStats* thread_stats = self->GetStats(); |
| 3506 | ++global_stats->class_init_count; |
| 3507 | ++thread_stats->class_init_count; |
| 3508 | global_stats->class_init_time_ns += (t1 - t0); |
| 3509 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 3510 | // Set the class as initialized except if failed to initialize static fields. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3511 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3512 | if (VLOG_IS_ON(class_linker)) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 3513 | LOG(INFO) << "Initialized class " << klass->GetDescriptor() << " from " << |
| 3514 | klass->GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 3515 | } |
Brian Carlstrom | 073278c | 2014-02-19 15:21:21 -0800 | [diff] [blame] | 3516 | // Opportunistically set static method trampolines to their destination. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3517 | FixupStaticTrampolines(klass.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3518 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3519 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3520 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3521 | } |
| 3522 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3523 | bool ClassLinker::WaitForInitializeClass(Handle<mirror::Class> klass, Thread* self, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3524 | ObjectLock<mirror::Class>& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3525 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3526 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3527 | self->AssertNoPendingException(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3528 | CHECK(!klass->IsInitialized()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 3529 | lock.WaitIgnoringInterrupts(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3530 | |
| 3531 | // When we wake up, repeat the test for init-in-progress. If |
| 3532 | // there's an exception pending (only possible if |
| 3533 | // "interruptShouldThrow" was set), bail out. |
| 3534 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3535 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3536 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3537 | return false; |
| 3538 | } |
| 3539 | // Spurious wakeup? Go back to waiting. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3540 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3541 | continue; |
| 3542 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3543 | if (klass->GetStatus() == mirror::Class::kStatusVerified && Runtime::Current()->IsCompiler()) { |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 3544 | // Compile time initialization failed. |
| 3545 | return false; |
| 3546 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3547 | if (klass->IsErroneous()) { |
| 3548 | // The caller wants an exception, but it was thrown in a |
| 3549 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 3550 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3551 | PrettyDescriptor(klass.Get()).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3552 | return false; |
| 3553 | } |
| 3554 | if (klass->IsInitialized()) { |
| 3555 | return true; |
| 3556 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3557 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass.Get()) << " is " |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3558 | << klass->GetStatus(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3559 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3560 | LOG(FATAL) << "Not Reached" << PrettyClass(klass.Get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3561 | } |
| 3562 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3563 | bool ClassLinker::ValidateSuperClassDescriptors(Handle<mirror::Class> klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3564 | if (klass->IsInterface()) { |
| 3565 | return true; |
| 3566 | } |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3567 | // Begin with the methods local to the superclass. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3568 | StackHandleScope<2> hs(Thread::Current()); |
| 3569 | MethodHelper mh(hs.NewHandle<mirror::ArtMethod>(nullptr)); |
| 3570 | MethodHelper super_mh(hs.NewHandle<mirror::ArtMethod>(nullptr)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3571 | if (klass->HasSuperClass() && |
| 3572 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3573 | for (int i = klass->GetSuperClass()->GetVTable()->GetLength() - 1; i >= 0; --i) { |
| 3574 | mh.ChangeMethod(klass->GetVTable()->GetWithoutChecks(i)); |
| 3575 | super_mh.ChangeMethod(klass->GetSuperClass()->GetVTable()->GetWithoutChecks(i)); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3576 | if (mh.GetMethod() != super_mh.GetMethod() && |
| 3577 | !mh.HasSameSignatureWithDifferentClassLoaders(&super_mh)) { |
| 3578 | ThrowLinkageError(klass.Get(), |
| 3579 | "Class %s method %s resolves differently in superclass %s", |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3580 | PrettyDescriptor(klass.Get()).c_str(), |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3581 | PrettyMethod(mh.GetMethod()).c_str(), |
| 3582 | PrettyDescriptor(klass->GetSuperClass()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3583 | return false; |
| 3584 | } |
| 3585 | } |
| 3586 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3587 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3588 | if (klass->GetClassLoader() != klass->GetIfTable()->GetInterface(i)->GetClassLoader()) { |
| 3589 | uint32_t num_methods = klass->GetIfTable()->GetInterface(i)->NumVirtualMethods(); |
| 3590 | for (uint32_t j = 0; j < num_methods; ++j) { |
| 3591 | mh.ChangeMethod(klass->GetIfTable()->GetMethodArray(i)->GetWithoutChecks(j)); |
| 3592 | super_mh.ChangeMethod(klass->GetIfTable()->GetInterface(i)->GetVirtualMethod(j)); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3593 | if (mh.GetMethod() != super_mh.GetMethod() && |
| 3594 | !mh.HasSameSignatureWithDifferentClassLoaders(&super_mh)) { |
| 3595 | ThrowLinkageError(klass.Get(), |
| 3596 | "Class %s method %s resolves differently in interface %s", |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3597 | PrettyDescriptor(klass.Get()).c_str(), |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3598 | PrettyMethod(mh.GetMethod()).c_str(), |
| 3599 | PrettyDescriptor(klass->GetIfTable()->GetInterface(i)).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3600 | return false; |
| 3601 | } |
| 3602 | } |
| 3603 | } |
| 3604 | } |
| 3605 | return true; |
| 3606 | } |
| 3607 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3608 | bool ClassLinker::EnsureInitialized(Handle<mirror::Class> c, bool can_init_fields, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3609 | bool can_init_parents) { |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3610 | DCHECK(c.Get() != nullptr); |
| 3611 | const bool success = c->IsInitialized() || InitializeClass(c, can_init_fields, can_init_parents); |
| 3612 | if (!success && can_init_fields && can_init_parents) { |
| 3613 | CHECK(Thread::Current()->IsExceptionPending()) << PrettyClass(c.Get()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3614 | } |
| 3615 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 3616 | } |
| 3617 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3618 | void ClassLinker::ConstructFieldMap(const DexFile& dex_file, const DexFile::ClassDef& dex_class_def, |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3619 | mirror::Class* c, |
| 3620 | SafeMap<uint32_t, mirror::ArtField*>& field_map) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3621 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3622 | ClassDataItemIterator it(dex_file, class_data); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3623 | StackHandleScope<2> hs(Thread::Current()); |
| 3624 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(c->GetDexCache())); |
| 3625 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(c->GetClassLoader())); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3626 | CHECK(!kMovingFields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3627 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3628 | field_map.Put(i, ResolveField(dex_file, it.GetMemberIndex(), dex_cache, class_loader, true)); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3629 | } |
| 3630 | } |
| 3631 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3632 | void ClassLinker::FixupTemporaryDeclaringClass(mirror::Class* temp_class, mirror::Class* new_class) { |
| 3633 | mirror::ObjectArray<mirror::ArtField>* fields = new_class->GetIFields(); |
| 3634 | if (fields != nullptr) { |
| 3635 | for (int index = 0; index < fields->GetLength(); index ++) { |
| 3636 | if (fields->Get(index)->GetDeclaringClass() == temp_class) { |
| 3637 | fields->Get(index)->SetDeclaringClass(new_class); |
| 3638 | } |
| 3639 | } |
| 3640 | } |
| 3641 | |
| 3642 | fields = new_class->GetSFields(); |
| 3643 | if (fields != nullptr) { |
| 3644 | for (int index = 0; index < fields->GetLength(); index ++) { |
| 3645 | if (fields->Get(index)->GetDeclaringClass() == temp_class) { |
| 3646 | fields->Get(index)->SetDeclaringClass(new_class); |
| 3647 | } |
| 3648 | } |
| 3649 | } |
| 3650 | |
| 3651 | mirror::ObjectArray<mirror::ArtMethod>* methods = new_class->GetDirectMethods(); |
| 3652 | if (methods != nullptr) { |
| 3653 | for (int index = 0; index < methods->GetLength(); index ++) { |
| 3654 | if (methods->Get(index)->GetDeclaringClass() == temp_class) { |
| 3655 | methods->Get(index)->SetDeclaringClass(new_class); |
| 3656 | } |
| 3657 | } |
| 3658 | } |
| 3659 | |
| 3660 | methods = new_class->GetVirtualMethods(); |
| 3661 | if (methods != nullptr) { |
| 3662 | for (int index = 0; index < methods->GetLength(); index ++) { |
| 3663 | if (methods->Get(index)->GetDeclaringClass() == temp_class) { |
| 3664 | methods->Get(index)->SetDeclaringClass(new_class); |
| 3665 | } |
| 3666 | } |
| 3667 | } |
| 3668 | } |
| 3669 | |
| 3670 | bool ClassLinker::LinkClass(Thread* self, const char* descriptor, Handle<mirror::Class> klass, |
| 3671 | Handle<mirror::ObjectArray<mirror::Class>> interfaces, |
| 3672 | mirror::Class** new_class) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3673 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3674 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3675 | if (!LinkSuperClass(klass)) { |
| 3676 | return false; |
| 3677 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3678 | if (!LinkMethods(self, klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3679 | return false; |
| 3680 | } |
| 3681 | if (!LinkInstanceFields(klass)) { |
| 3682 | return false; |
| 3683 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3684 | size_t class_size; |
| 3685 | if (!LinkStaticFields(klass, &class_size)) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3686 | return false; |
| 3687 | } |
| 3688 | CreateReferenceInstanceOffsets(klass); |
| 3689 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3690 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3691 | |
| 3692 | if (!klass->IsTemp() || (!init_done_ && klass->GetClassSize() == class_size)) { |
| 3693 | // We don't need to retire this class as it has no embedded tables or it was created the |
| 3694 | // correct size during class linker initialization. |
| 3695 | CHECK_EQ(klass->GetClassSize(), class_size) << PrettyDescriptor(klass.Get()); |
| 3696 | |
| 3697 | if (klass->ShouldHaveEmbeddedImtAndVTable()) { |
| 3698 | klass->PopulateEmbeddedImtAndVTable(); |
| 3699 | } |
| 3700 | |
| 3701 | // This will notify waiters on klass that saw the not yet resolved |
| 3702 | // class in the class_table_ during EnsureResolved. |
| 3703 | klass->SetStatus(mirror::Class::kStatusResolved, self); |
| 3704 | *new_class = klass.Get(); |
| 3705 | } else { |
| 3706 | CHECK(!klass->IsResolved()); |
| 3707 | // Retire the temporary class and create the correctly sized resolved class. |
| 3708 | *new_class = klass->CopyOf(self, class_size); |
| 3709 | if (UNLIKELY(*new_class == NULL)) { |
| 3710 | CHECK(self->IsExceptionPending()); // Expect an OOME. |
| 3711 | klass->SetStatus(mirror::Class::kStatusError, self); |
| 3712 | return false; |
| 3713 | } |
| 3714 | |
| 3715 | CHECK_EQ((*new_class)->GetClassSize(), class_size); |
| 3716 | StackHandleScope<1> hs(self); |
| 3717 | auto new_class_h = hs.NewHandleWrapper<mirror::Class>(new_class); |
| 3718 | ObjectLock<mirror::Class> lock(self, new_class_h); |
| 3719 | |
| 3720 | FixupTemporaryDeclaringClass(klass.Get(), new_class_h.Get()); |
| 3721 | |
| 3722 | mirror::Class* existing = UpdateClass(descriptor, new_class_h.Get(), Hash(descriptor)); |
| 3723 | CHECK(existing == NULL || existing == klass.Get()); |
| 3724 | |
| 3725 | // This will notify waiters on temp class that saw the not yet resolved class in the |
| 3726 | // class_table_ during EnsureResolved. |
| 3727 | klass->SetStatus(mirror::Class::kStatusRetired, self); |
| 3728 | |
| 3729 | CHECK_EQ(new_class_h->GetStatus(), mirror::Class::kStatusResolving); |
| 3730 | // This will notify waiters on new_class that saw the not yet resolved |
| 3731 | // class in the class_table_ during EnsureResolved. |
| 3732 | new_class_h->SetStatus(mirror::Class::kStatusResolved, self); |
| 3733 | |
| 3734 | // Only embedded imt should be used from this point. |
| 3735 | new_class_h->SetImTable(NULL); |
| 3736 | // TODO: remove vtable and only use embedded vtable. |
| 3737 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3738 | return true; |
| 3739 | } |
| 3740 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3741 | bool ClassLinker::LoadSuperAndInterfaces(Handle<mirror::Class> klass, const DexFile& dex_file) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3742 | CHECK_EQ(mirror::Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3743 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(klass->GetDexClassDefIndex()); |
| 3744 | uint16_t super_class_idx = class_def.superclass_idx_; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3745 | if (super_class_idx != DexFile::kDexNoIndex16) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3746 | mirror::Class* super_class = ResolveType(dex_file, super_class_idx, klass.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3747 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3748 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3749 | return false; |
| 3750 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3751 | // Verify |
| 3752 | if (!klass->CanAccess(super_class)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3753 | ThrowIllegalAccessError(klass.Get(), "Class %s extended by class %s is inaccessible", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3754 | PrettyDescriptor(super_class).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3755 | PrettyDescriptor(klass.Get()).c_str()); |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3756 | return false; |
| 3757 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 3758 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3759 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3760 | } |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3761 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(class_def); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3762 | if (interfaces != NULL) { |
| 3763 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 3764 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3765 | mirror::Class* interface = ResolveType(dex_file, idx, klass.Get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3766 | if (interface == NULL) { |
| 3767 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3768 | return false; |
| 3769 | } |
| 3770 | // Verify |
| 3771 | if (!klass->CanAccess(interface)) { |
| 3772 | // TODO: the RI seemed to ignore this in my testing. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3773 | ThrowIllegalAccessError(klass.Get(), "Interface %s implemented by class %s is inaccessible", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3774 | PrettyDescriptor(interface).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3775 | PrettyDescriptor(klass.Get()).c_str()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3776 | return false; |
| 3777 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3778 | } |
| 3779 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 3780 | // Mark the class as loaded. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3781 | klass->SetStatus(mirror::Class::kStatusLoaded, NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3782 | return true; |
| 3783 | } |
| 3784 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3785 | bool ClassLinker::LinkSuperClass(Handle<mirror::Class> klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3786 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3787 | mirror::Class* super = klass->GetSuperClass(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3788 | if (klass.Get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3789 | if (super != NULL) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3790 | ThrowClassFormatError(klass.Get(), "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3791 | return false; |
| 3792 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3793 | return true; |
| 3794 | } |
| 3795 | if (super == NULL) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3796 | ThrowLinkageError(klass.Get(), "No superclass defined for class %s", |
| 3797 | PrettyDescriptor(klass.Get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3798 | return false; |
| 3799 | } |
| 3800 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3801 | if (super->IsFinal() || super->IsInterface()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3802 | ThrowIncompatibleClassChangeError(klass.Get(), "Superclass %s of %s is %s", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3803 | PrettyDescriptor(super).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3804 | PrettyDescriptor(klass.Get()).c_str(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3805 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3806 | return false; |
| 3807 | } |
| 3808 | if (!klass->CanAccess(super)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3809 | ThrowIllegalAccessError(klass.Get(), "Superclass %s is inaccessible to class %s", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3810 | PrettyDescriptor(super).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3811 | PrettyDescriptor(klass.Get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3812 | return false; |
| 3813 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 3814 | |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3815 | // Inherit kAccClassIsFinalizable from the superclass in case this |
| 3816 | // class doesn't override finalize. |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 3817 | if (super->IsFinalizable()) { |
| 3818 | klass->SetFinalizable(); |
| 3819 | } |
| 3820 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3821 | // Inherit reference flags (if any) from the superclass. |
| 3822 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 3823 | if (reference_flags != 0) { |
| 3824 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 3825 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3826 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 3827 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3828 | ThrowLinkageError(klass.Get(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3829 | "Class %s attempts to subclass java.lang.ref.Reference, which is not allowed", |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3830 | PrettyDescriptor(klass.Get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3831 | return false; |
| 3832 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3833 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3834 | if (kIsDebugBuild) { |
| 3835 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 3836 | while (super != NULL) { |
| 3837 | CHECK(super->IsResolved()); |
| 3838 | super = super->GetSuperClass(); |
| 3839 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3840 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3841 | return true; |
| 3842 | } |
| 3843 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3844 | // Populate the class vtable and itable. Compute return type indices. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3845 | bool ClassLinker::LinkMethods(Thread* self, Handle<mirror::Class> klass, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3846 | Handle<mirror::ObjectArray<mirror::Class>> interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3847 | if (klass->IsInterface()) { |
| 3848 | // No vtable. |
| 3849 | size_t count = klass->NumVirtualMethods(); |
| 3850 | if (!IsUint(16, count)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3851 | ThrowClassFormatError(klass.Get(), "Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3852 | return false; |
| 3853 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 3854 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3855 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3856 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 3857 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3858 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3859 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 3860 | // Link virtual and interface method tables |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3861 | return LinkVirtualMethods(self, klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3862 | } |
| 3863 | return true; |
| 3864 | } |
| 3865 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3866 | bool ClassLinker::LinkVirtualMethods(Thread* self, Handle<mirror::Class> klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3867 | if (klass->HasSuperClass()) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3868 | uint32_t max_count = klass->NumVirtualMethods() + |
| 3869 | klass->GetSuperClass()->GetVTable()->GetLength(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3870 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3871 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3872 | // TODO: do not assign to the vtable field until it is fully constructed. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3873 | StackHandleScope<3> hs(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3874 | Handle<mirror::ObjectArray<mirror::ArtMethod>> vtable( |
| 3875 | hs.NewHandle(klass->GetSuperClass()->GetVTable()->CopyOf(self, max_count))); |
| 3876 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3877 | CHECK(self->IsExceptionPending()); // OOME. |
| 3878 | return false; |
| 3879 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3880 | // See if any of our virtual methods override the superclass. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3881 | MethodHelper local_mh(hs.NewHandle<mirror::ArtMethod>(nullptr)); |
| 3882 | MethodHelper super_mh(hs.NewHandle<mirror::ArtMethod>(nullptr)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3883 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3884 | mirror::ArtMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3885 | local_mh.ChangeMethod(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3886 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3887 | for (; j < actual_count; ++j) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3888 | mirror::ArtMethod* super_method = vtable->Get(j); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3889 | super_mh.ChangeMethod(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3890 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 3891 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), |
| 3892 | super_method->GetAccessFlags())) { |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3893 | if (super_method->IsFinal()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3894 | ThrowLinkageError(klass.Get(), "Method %s overrides final method in class %s", |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3895 | PrettyMethod(local_method).c_str(), |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3896 | super_method->GetDeclaringClassDescriptor()); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3897 | return false; |
| 3898 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3899 | vtable->Set<false>(j, local_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3900 | local_method->SetMethodIndex(j); |
| 3901 | break; |
| 3902 | } else { |
| 3903 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 3904 | << " would have incorrectly overridden the package-private method in " |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3905 | << PrettyDescriptor(super_method->GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3906 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3907 | } |
| 3908 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3909 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3910 | // Not overriding, append. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3911 | vtable->Set<false>(actual_count, local_method); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3912 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3913 | actual_count += 1; |
| 3914 | } |
| 3915 | } |
| 3916 | if (!IsUint(16, actual_count)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3917 | ThrowClassFormatError(klass.Get(), "Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3918 | return false; |
| 3919 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3920 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3921 | CHECK_LE(actual_count, max_count); |
| 3922 | if (actual_count < max_count) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3923 | vtable.Assign(vtable->CopyOf(self, actual_count)); |
| 3924 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3925 | CHECK(self->IsExceptionPending()); // OOME. |
| 3926 | return false; |
| 3927 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3928 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3929 | klass->SetVTable(vtable.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3930 | } else { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3931 | CHECK_EQ(klass.Get(), GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3932 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3933 | if (!IsUint(16, num_virtual_methods)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3934 | ThrowClassFormatError(klass.Get(), "Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3935 | return false; |
| 3936 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3937 | StackHandleScope<1> hs(self); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 3938 | Handle<mirror::ObjectArray<mirror::ArtMethod>> |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3939 | vtable(hs.NewHandle(AllocArtMethodArray(self, num_virtual_methods))); |
| 3940 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3941 | CHECK(self->IsExceptionPending()); // OOME. |
| 3942 | return false; |
| 3943 | } |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3944 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3945 | mirror::ArtMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3946 | vtable->Set<false>(i, virtual_method); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3947 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3948 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3949 | klass->SetVTable(vtable.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3950 | } |
| 3951 | return true; |
| 3952 | } |
| 3953 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 3954 | bool ClassLinker::LinkInterfaceMethods(Handle<mirror::Class> klass, |
| 3955 | Handle<mirror::ObjectArray<mirror::Class>> interfaces) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 3956 | Thread* const self = Thread::Current(); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3957 | Runtime* const runtime = Runtime::Current(); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3958 | // Set the imt table to be all conflicts by default. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3959 | klass->SetImTable(runtime->GetDefaultImt()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3960 | size_t super_ifcount; |
| 3961 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3962 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3963 | } else { |
| 3964 | super_ifcount = 0; |
| 3965 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 3966 | uint32_t num_interfaces = |
| 3967 | interfaces.Get() == nullptr ? klass->NumDirectInterfaces() : interfaces->GetLength(); |
| 3968 | size_t ifcount = super_ifcount + num_interfaces; |
| 3969 | for (size_t i = 0; i < num_interfaces; i++) { |
| 3970 | mirror::Class* interface = |
| 3971 | interfaces.Get() == nullptr ? mirror::Class::GetDirectInterface(self, klass, i) : |
| 3972 | interfaces->Get(i); |
| 3973 | ifcount += interface->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3974 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3975 | if (ifcount == 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3976 | // Class implements no interfaces. |
| 3977 | DCHECK_EQ(klass->GetIfTableCount(), 0); |
| 3978 | DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3979 | return true; |
| 3980 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3981 | if (ifcount == super_ifcount) { |
| 3982 | // Class implements same interfaces as parent, are any of these not marker interfaces? |
| 3983 | bool has_non_marker_interface = false; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3984 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3985 | for (size_t i = 0; i < ifcount; ++i) { |
| 3986 | if (super_iftable->GetMethodArrayCount(i) > 0) { |
| 3987 | has_non_marker_interface = true; |
| 3988 | break; |
| 3989 | } |
| 3990 | } |
| 3991 | if (!has_non_marker_interface) { |
| 3992 | // Class just inherits marker interfaces from parent so recycle parent's iftable. |
| 3993 | klass->SetIfTable(super_iftable); |
| 3994 | return true; |
| 3995 | } |
| 3996 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3997 | StackHandleScope<4> hs(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3998 | Handle<mirror::IfTable> iftable(hs.NewHandle(AllocIfTable(self, ifcount))); |
| 3999 | if (UNLIKELY(iftable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4000 | CHECK(self->IsExceptionPending()); // OOME. |
| 4001 | return false; |
| 4002 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4003 | if (super_ifcount != 0) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4004 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 4005 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4006 | mirror::Class* super_interface = super_iftable->GetInterface(i); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4007 | iftable->SetInterface(i, super_interface); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 4008 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4009 | } |
| 4010 | // Flatten the interface inheritance hierarchy. |
| 4011 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4012 | for (size_t i = 0; i < num_interfaces; i++) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4013 | mirror::Class* interface = |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4014 | interfaces.Get() == nullptr ? mirror::Class::GetDirectInterface(self, klass, i) : |
| 4015 | interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 4016 | DCHECK(interface != NULL); |
| 4017 | if (!interface->IsInterface()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4018 | ThrowIncompatibleClassChangeError(klass.Get(), "Class %s implements non-interface class %s", |
| 4019 | PrettyDescriptor(klass.Get()).c_str(), |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4020 | PrettyDescriptor(interface->GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4021 | return false; |
| 4022 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4023 | // Check if interface is already in iftable |
| 4024 | bool duplicate = false; |
| 4025 | for (size_t j = 0; j < idx; j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4026 | mirror::Class* existing_interface = iftable->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4027 | if (existing_interface == interface) { |
| 4028 | duplicate = true; |
| 4029 | break; |
| 4030 | } |
| 4031 | } |
| 4032 | if (!duplicate) { |
| 4033 | // Add this non-duplicate interface. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4034 | iftable->SetInterface(idx++, interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4035 | // Add this interface's non-duplicate super-interfaces. |
| 4036 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4037 | mirror::Class* super_interface = interface->GetIfTable()->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4038 | bool super_duplicate = false; |
| 4039 | for (size_t k = 0; k < idx; k++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4040 | mirror::Class* existing_interface = iftable->GetInterface(k); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4041 | if (existing_interface == super_interface) { |
| 4042 | super_duplicate = true; |
| 4043 | break; |
| 4044 | } |
| 4045 | } |
| 4046 | if (!super_duplicate) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4047 | iftable->SetInterface(idx++, super_interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4048 | } |
| 4049 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4050 | } |
| 4051 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4052 | // Shrink iftable in case duplicates were found |
| 4053 | if (idx < ifcount) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4054 | iftable.Assign(down_cast<mirror::IfTable*>(iftable->CopyOf(self, idx * mirror::IfTable::kMax))); |
| 4055 | if (UNLIKELY(iftable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4056 | CHECK(self->IsExceptionPending()); // OOME. |
| 4057 | return false; |
| 4058 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 4059 | ifcount = idx; |
| 4060 | } else { |
| 4061 | CHECK_EQ(idx, ifcount); |
| 4062 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4063 | klass->SetIfTable(iftable.Get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 4064 | |
| 4065 | // 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] | 4066 | if (klass->IsInterface()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4067 | return true; |
| 4068 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4069 | // Allocate imtable |
| 4070 | bool imtable_changed = false; |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 4071 | Handle<mirror::ObjectArray<mirror::ArtMethod>> imtable( |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4072 | hs.NewHandle(AllocArtMethodArray(self, mirror::Class::kImtSize))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4073 | if (UNLIKELY(imtable.Get() == NULL)) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4074 | CHECK(self->IsExceptionPending()); // OOME. |
| 4075 | return false; |
| 4076 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4077 | MethodHelper interface_mh(hs.NewHandle<mirror::ArtMethod>(nullptr)); |
| 4078 | MethodHelper vtable_mh(hs.NewHandle<mirror::ArtMethod>(nullptr)); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4079 | std::vector<mirror::ArtMethod*> miranda_list; |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 4080 | for (size_t i = 0; i < ifcount; ++i) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4081 | size_t num_methods = iftable->GetInterface(i)->NumVirtualMethods(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4082 | if (num_methods > 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4083 | StackHandleScope<2> hs(self); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 4084 | Handle<mirror::ObjectArray<mirror::ArtMethod>> |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4085 | method_array(hs.NewHandle(AllocArtMethodArray(self, num_methods))); |
| 4086 | if (UNLIKELY(method_array.Get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4087 | CHECK(self->IsExceptionPending()); // OOME. |
| 4088 | return false; |
| 4089 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4090 | iftable->SetMethodArray(i, method_array.Get()); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 4091 | Handle<mirror::ObjectArray<mirror::ArtMethod>> vtable( |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4092 | hs.NewHandle(klass->GetVTableDuringLinking())); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4093 | for (size_t j = 0; j < num_methods; ++j) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4094 | mirror::ArtMethod* interface_method = iftable->GetInterface(i)->GetVirtualMethod(j); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4095 | interface_mh.ChangeMethod(interface_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4096 | int32_t k; |
| 4097 | // For each method listed in the interface's method list, find the |
| 4098 | // matching method in our class's method list. We want to favor the |
| 4099 | // subclass over the superclass, which just requires walking |
| 4100 | // back from the end of the vtable. (This only matters if the |
| 4101 | // superclass defines a private method and this class redefines |
| 4102 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 4103 | // those don't end up in the virtual method table, so it shouldn't |
| 4104 | // matter which direction we go. We walk it backward anyway.) |
| 4105 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4106 | mirror::ArtMethod* vtable_method = vtable->Get(k); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4107 | vtable_mh.ChangeMethod(vtable_method); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4108 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Elliott Hughes | 6824361 | 2013-02-22 17:16:07 -0800 | [diff] [blame] | 4109 | if (!vtable_method->IsAbstract() && !vtable_method->IsPublic()) { |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4110 | ThrowIllegalAccessError( |
| 4111 | klass.Get(), |
| 4112 | "Method '%s' implementing interface method '%s' is not public", |
| 4113 | PrettyMethod(vtable_method).c_str(), |
| 4114 | PrettyMethod(interface_method).c_str()); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4115 | return false; |
| 4116 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4117 | method_array->Set<false>(j, vtable_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4118 | // Place method in imt if entry is empty, place conflict otherwise. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4119 | uint32_t imt_index = interface_method->GetDexMethodIndex() % mirror::Class::kImtSize; |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4120 | if (imtable->Get(imt_index) == NULL) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4121 | imtable->Set<false>(imt_index, vtable_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4122 | imtable_changed = true; |
| 4123 | } else { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4124 | imtable->Set<false>(imt_index, runtime->GetImtConflictMethod()); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4125 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4126 | break; |
| 4127 | } |
| 4128 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4129 | if (k < 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4130 | StackHandleScope<1> hs(self); |
| 4131 | auto miranda_method = hs.NewHandle<mirror::ArtMethod>(nullptr); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4132 | for (mirror::ArtMethod* mir_method : miranda_list) { |
| 4133 | vtable_mh.ChangeMethod(mir_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4134 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4135 | miranda_method.Assign(mir_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4136 | break; |
| 4137 | } |
| 4138 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4139 | if (miranda_method.Get() == NULL) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4140 | // Point the interface table at a phantom slot. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4141 | miranda_method.Assign(down_cast<mirror::ArtMethod*>(interface_method->Clone(self))); |
| 4142 | if (UNLIKELY(miranda_method.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4143 | CHECK(self->IsExceptionPending()); // OOME. |
| 4144 | return false; |
| 4145 | } |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4146 | // TODO: If a methods move then the miranda_list may hold stale references. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4147 | miranda_list.push_back(miranda_method.Get()); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 4148 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4149 | method_array->Set<false>(j, miranda_method.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4150 | } |
| 4151 | } |
| 4152 | } |
| 4153 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4154 | if (imtable_changed) { |
| 4155 | // Fill in empty entries in interface method table with conflict. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4156 | mirror::ArtMethod* imt_conflict_method = runtime->GetImtConflictMethod(); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4157 | for (size_t i = 0; i < mirror::Class::kImtSize; i++) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4158 | if (imtable->Get(i) == NULL) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4159 | imtable->Set<false>(i, imt_conflict_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4160 | } |
| 4161 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4162 | klass->SetImTable(imtable.Get()); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 4163 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 4164 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 4165 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 4166 | int new_method_count = old_method_count + miranda_list.size(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4167 | mirror::ObjectArray<mirror::ArtMethod>* virtuals; |
| 4168 | if (old_method_count == 0) { |
| 4169 | virtuals = AllocArtMethodArray(self, new_method_count); |
| 4170 | } else { |
| 4171 | virtuals = klass->GetVirtualMethods()->CopyOf(self, new_method_count); |
| 4172 | } |
| 4173 | if (UNLIKELY(virtuals == NULL)) { |
| 4174 | CHECK(self->IsExceptionPending()); // OOME. |
| 4175 | return false; |
| 4176 | } |
| 4177 | klass->SetVirtualMethods(virtuals); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4178 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4179 | StackHandleScope<1> hs(self); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 4180 | Handle<mirror::ObjectArray<mirror::ArtMethod>> vtable( |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4181 | hs.NewHandle(klass->GetVTableDuringLinking())); |
| 4182 | CHECK(vtable.Get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4183 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 4184 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4185 | vtable.Assign(vtable->CopyOf(self, new_vtable_count)); |
| 4186 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 4187 | CHECK(self->IsExceptionPending()); // OOME. |
| 4188 | return false; |
| 4189 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 4190 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4191 | mirror::ArtMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 4192 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 4193 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 4194 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 4195 | klass->SetVirtualMethod(old_method_count + i, method); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4196 | vtable->Set<false>(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4197 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4198 | // TODO: do not assign to the vtable field until it is fully constructed. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4199 | klass->SetVTable(vtable.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4200 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 4201 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4202 | mirror::ObjectArray<mirror::ArtMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 4203 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 4204 | CHECK(vtable->Get(i) != NULL); |
| 4205 | } |
| 4206 | |
| 4207 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 4208 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4209 | return true; |
| 4210 | } |
| 4211 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4212 | bool ClassLinker::LinkInstanceFields(Handle<mirror::Class> klass) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4213 | CHECK(klass.Get() != NULL); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4214 | return LinkFields(klass, false, nullptr); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4215 | } |
| 4216 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4217 | bool ClassLinker::LinkStaticFields(Handle<mirror::Class> klass, size_t* class_size) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4218 | CHECK(klass.Get() != NULL); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4219 | return LinkFields(klass, true, class_size); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4220 | } |
| 4221 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4222 | struct LinkFieldsComparator { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4223 | explicit LinkFieldsComparator() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 4224 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4225 | // No thread safety analysis as will be called from STL. Checked lock held in constructor. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4226 | bool operator()(mirror::ArtField* field1, mirror::ArtField* field2) |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4227 | NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4228 | // First come reference fields, then 64-bit, and finally 32-bit |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4229 | Primitive::Type type1 = field1->GetTypeAsPrimitiveType(); |
| 4230 | Primitive::Type type2 = field2->GetTypeAsPrimitiveType(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4231 | if (type1 != type2) { |
| 4232 | bool is_primitive1 = type1 != Primitive::kPrimNot; |
| 4233 | bool is_primitive2 = type2 != Primitive::kPrimNot; |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4234 | bool is64bit1 = is_primitive1 && (type1 == Primitive::kPrimLong || |
| 4235 | type1 == Primitive::kPrimDouble); |
| 4236 | bool is64bit2 = is_primitive2 && (type2 == Primitive::kPrimLong || |
| 4237 | type2 == Primitive::kPrimDouble); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4238 | int order1 = !is_primitive1 ? 0 : (is64bit1 ? 1 : 2); |
| 4239 | int order2 = !is_primitive2 ? 0 : (is64bit2 ? 1 : 2); |
| 4240 | if (order1 != order2) { |
| 4241 | return order1 < order2; |
| 4242 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4243 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4244 | // same basic group? then sort by string. |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4245 | return strcmp(field1->GetName(), field2->GetName()) < 0; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4246 | } |
| 4247 | }; |
| 4248 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4249 | bool ClassLinker::LinkFields(Handle<mirror::Class> klass, bool is_static, size_t* class_size) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4250 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4251 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4252 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4253 | mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4254 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4255 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4256 | // Initialize field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 4257 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4258 | if (is_static) { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4259 | uint32_t base = sizeof(mirror::Class); // Static fields come after the class. |
| 4260 | if (klass->ShouldHaveEmbeddedImtAndVTable()) { |
| 4261 | // Static fields come after the embedded tables. |
| 4262 | base = mirror::Class::ComputeClassSize(true, klass->GetVTableDuringLinking()->GetLength(), |
| 4263 | 0, 0, 0); |
| 4264 | } |
| 4265 | field_offset = MemberOffset(base); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4266 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4267 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4268 | if (super_class != NULL) { |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4269 | CHECK(super_class->IsResolved()) |
| 4270 | << PrettyClass(klass.Get()) << " " << PrettyClass(super_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4271 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4272 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4273 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4274 | |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4275 | CHECK_EQ(num_fields == 0, fields == NULL) << PrettyClass(klass.Get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4276 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4277 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 4278 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4279 | std::deque<mirror::ArtField*> grouped_and_sorted_fields; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4280 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4281 | mirror::ArtField* f = fields->Get(i); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4282 | CHECK(f != NULL) << PrettyClass(klass.Get()); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4283 | grouped_and_sorted_fields.push_back(f); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4284 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4285 | std::sort(grouped_and_sorted_fields.begin(), grouped_and_sorted_fields.end(), |
| 4286 | LinkFieldsComparator()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4287 | |
| 4288 | // References should be at the front. |
| 4289 | size_t current_field = 0; |
| 4290 | size_t num_reference_fields = 0; |
| 4291 | for (; current_field < num_fields; current_field++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4292 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4293 | Primitive::Type type = field->GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 4294 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4295 | if (isPrimitive) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4296 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4297 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4298 | grouped_and_sorted_fields.pop_front(); |
| 4299 | num_reference_fields++; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4300 | fields->Set<false>(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4301 | field->SetOffset(field_offset); |
| 4302 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4303 | } |
| 4304 | |
| 4305 | // Now we want to pack all of the double-wide fields together. If |
| 4306 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 4307 | // 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] | 4308 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4309 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4310 | mirror::ArtField* field = grouped_and_sorted_fields[i]; |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4311 | Primitive::Type type = field->GetTypeAsPrimitiveType(); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4312 | CHECK(type != Primitive::kPrimNot) << PrettyField(field); // should be primitive types |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 4313 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4314 | continue; |
| 4315 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4316 | fields->Set<false>(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4317 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4318 | // drop the consumed field |
| 4319 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 4320 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4321 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4322 | // whether we found a 32-bit field for padding or not, we advance |
| 4323 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4324 | } |
| 4325 | |
| 4326 | // Alignment is good, shuffle any double-wide fields forward, and |
| 4327 | // finish assigning field offsets to all fields. |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4328 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())) |
| 4329 | << PrettyClass(klass.Get()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4330 | while (!grouped_and_sorted_fields.empty()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4331 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4332 | grouped_and_sorted_fields.pop_front(); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4333 | Primitive::Type type = field->GetTypeAsPrimitiveType(); |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4334 | CHECK(type != Primitive::kPrimNot) << PrettyField(field); // should be primitive types |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4335 | fields->Set<false>(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4336 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4337 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 4338 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4339 | ? sizeof(uint64_t) |
| 4340 | : sizeof(uint32_t))); |
| 4341 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4342 | } |
| 4343 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 4344 | // We lie to the GC about the java.lang.ref.Reference.referent field, so it doesn't scan it. |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4345 | if (!is_static && klass->DescriptorEquals("Ljava/lang/ref/Reference;")) { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 4346 | // We know there are no non-reference fields in the Reference classes, and we know |
| 4347 | // that 'referent' is alphabetically last, so this is easy... |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4348 | CHECK_EQ(num_reference_fields, num_fields) << PrettyClass(klass.Get()); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4349 | CHECK_STREQ(fields->Get(num_fields - 1)->GetName(), "referent") << PrettyClass(klass.Get()); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 4350 | --num_reference_fields; |
| 4351 | } |
| 4352 | |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4353 | if (kIsDebugBuild) { |
| 4354 | // Make sure that all reference fields appear before |
| 4355 | // non-reference fields, and all double-wide fields are aligned. |
| 4356 | bool seen_non_ref = false; |
| 4357 | for (size_t i = 0; i < num_fields; i++) { |
| 4358 | mirror::ArtField* field = fields->Get(i); |
| 4359 | if (false) { // enable to debug field layout |
| 4360 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4361 | << " class=" << PrettyClass(klass.Get()) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4362 | << " field=" << PrettyField(field) |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 4363 | << " offset=" |
| 4364 | << field->GetField32(MemberOffset(mirror::ArtField::OffsetOffset())); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4365 | } |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4366 | Primitive::Type type = field->GetTypeAsPrimitiveType(); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4367 | bool is_primitive = type != Primitive::kPrimNot; |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4368 | if (klass->DescriptorEquals("Ljava/lang/ref/Reference;") && |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 4369 | strcmp("referent", field->GetName()) == 0) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4370 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 4371 | } |
| 4372 | if (is_primitive) { |
| 4373 | if (!seen_non_ref) { |
| 4374 | seen_non_ref = true; |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4375 | DCHECK_EQ(num_reference_fields, i) << PrettyField(field); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4376 | } |
| 4377 | } else { |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4378 | DCHECK(!seen_non_ref) << PrettyField(field); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4379 | } |
| 4380 | } |
| 4381 | if (!seen_non_ref) { |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4382 | DCHECK_EQ(num_fields, num_reference_fields) << PrettyClass(klass.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4383 | } |
| 4384 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4385 | |
| 4386 | size_t size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4387 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4388 | if (is_static) { |
| 4389 | klass->SetNumReferenceStaticFields(num_reference_fields); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 4390 | *class_size = size; |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4391 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4392 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4393 | if (!klass->IsVariableSize()) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4394 | DCHECK_GE(size, sizeof(mirror::Object)) << klass->GetDescriptor(); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 4395 | size_t previous_size = klass->GetObjectSize(); |
| 4396 | if (previous_size != 0) { |
| 4397 | // Make sure that we didn't originally have an incorrect size. |
Brian Carlstrom | f363283 | 2014-05-20 15:36:53 -0700 | [diff] [blame] | 4398 | CHECK_EQ(previous_size, size) << klass->GetDescriptor(); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 4399 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4400 | klass->SetObjectSize(size); |
| 4401 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4402 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4403 | return true; |
| 4404 | } |
| 4405 | |
| 4406 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 4407 | // list. |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4408 | void ClassLinker::CreateReferenceInstanceOffsets(Handle<mirror::Class> klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4409 | uint32_t reference_offsets = 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4410 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4411 | if (super_class != NULL) { |
| 4412 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4413 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4414 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 4415 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4416 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4417 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4418 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4419 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4420 | } |
| 4421 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4422 | void ClassLinker::CreateReferenceStaticOffsets(Handle<mirror::Class> klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4423 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4424 | } |
| 4425 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4426 | void ClassLinker::CreateReferenceOffsets(Handle<mirror::Class> klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4427 | uint32_t reference_offsets) { |
| 4428 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4429 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 4430 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4431 | mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4432 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4433 | // All of the fields that contain object references are guaranteed |
| 4434 | // to be at the beginning of the fields list. |
| 4435 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 4436 | // Note that byte_offset is the offset from the beginning of |
| 4437 | // object, not the offset into instance data |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4438 | mirror::ArtField* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4439 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4440 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 4441 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 4442 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4443 | CHECK_NE(new_bit, 0U); |
| 4444 | reference_offsets |= new_bit; |
| 4445 | } else { |
| 4446 | reference_offsets = CLASS_WALK_SUPER; |
| 4447 | break; |
| 4448 | } |
| 4449 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4450 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4451 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4452 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4453 | } else { |
| 4454 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4455 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4456 | } |
| 4457 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4458 | mirror::String* ClassLinker::ResolveString(const DexFile& dex_file, uint32_t string_idx, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4459 | Handle<mirror::DexCache> dex_cache) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4460 | DCHECK(dex_cache.Get() != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4461 | mirror::String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4462 | if (resolved != NULL) { |
| 4463 | return resolved; |
| 4464 | } |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4465 | uint32_t utf16_length; |
| 4466 | const char* utf8_data = dex_file.StringDataAndUtf16LengthByIdx(string_idx, &utf16_length); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4467 | mirror::String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4468 | dex_cache->SetResolvedString(string_idx, string); |
| 4469 | return string; |
| 4470 | } |
| 4471 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4472 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4473 | mirror::Class* referrer) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4474 | StackHandleScope<2> hs(Thread::Current()); |
| 4475 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(referrer->GetDexCache())); |
| 4476 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(referrer->GetClassLoader())); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4477 | return ResolveType(dex_file, type_idx, dex_cache, class_loader); |
| 4478 | } |
| 4479 | |
| 4480 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4481 | Handle<mirror::DexCache> dex_cache, |
| 4482 | Handle<mirror::ClassLoader> class_loader) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4483 | DCHECK(dex_cache.Get() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4484 | mirror::Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4485 | if (resolved == NULL) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 4486 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 4487 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 4488 | resolved = FindClass(self, descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4489 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 4490 | // TODO: we used to throw here if resolved's class loader was not the |
| 4491 | // boot class loader. This was to permit different classes with the |
| 4492 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4493 | dex_cache->SetResolvedType(type_idx, resolved); |
| 4494 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4495 | CHECK(self->IsExceptionPending()) |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 4496 | << "Expected pending exception for failed resolution of: " << descriptor; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4497 | // Convert a ClassNotFoundException to a NoClassDefFoundError. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4498 | StackHandleScope<1> hs(self); |
| 4499 | Handle<mirror::Throwable> cause(hs.NewHandle(self->GetException(nullptr))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4500 | if (cause->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4501 | DCHECK(resolved == NULL); // No Handle needed to preserve resolved. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 4502 | self->ClearException(); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4503 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4504 | self->GetException(NULL)->SetCause(cause.Get()); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4505 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4506 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4507 | } |
Brian Carlstrom | abcf7ae | 2013-09-23 22:19:52 -0700 | [diff] [blame] | 4508 | DCHECK((resolved == NULL) || resolved->IsResolved() || resolved->IsErroneous()) |
| 4509 | << PrettyDescriptor(resolved) << " " << resolved->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4510 | return resolved; |
| 4511 | } |
| 4512 | |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4513 | mirror::ArtMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, uint32_t method_idx, |
| 4514 | Handle<mirror::DexCache> dex_cache, |
| 4515 | Handle<mirror::ClassLoader> class_loader, |
| 4516 | Handle<mirror::ArtMethod> referrer, |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4517 | InvokeType type) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4518 | DCHECK(dex_cache.Get() != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4519 | // Check for hit in the dex cache. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4520 | mirror::ArtMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4521 | if (resolved != nullptr && !resolved->IsRuntimeMethod()) { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4522 | return resolved; |
| 4523 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4524 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4525 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4526 | mirror::Class* klass = ResolveType(dex_file, method_id.class_idx_, dex_cache, class_loader); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4527 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 4528 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4529 | return NULL; |
| 4530 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4531 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 4532 | // caches/files. |
| 4533 | switch (type) { |
| 4534 | case kDirect: // Fall-through. |
| 4535 | case kStatic: |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4536 | resolved = klass->FindDirectMethod(dex_cache.Get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4537 | break; |
| 4538 | case kInterface: |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4539 | resolved = klass->FindInterfaceMethod(dex_cache.Get(), method_idx); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4540 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4541 | break; |
| 4542 | case kSuper: // Fall-through. |
| 4543 | case kVirtual: |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4544 | resolved = klass->FindVirtualMethod(dex_cache.Get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4545 | break; |
| 4546 | default: |
| 4547 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4548 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4549 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4550 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4551 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4552 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4553 | switch (type) { |
| 4554 | case kDirect: // Fall-through. |
| 4555 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4556 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4557 | break; |
| 4558 | case kInterface: |
| 4559 | resolved = klass->FindInterfaceMethod(name, signature); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4560 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4561 | break; |
| 4562 | case kSuper: // Fall-through. |
| 4563 | case kVirtual: |
| 4564 | resolved = klass->FindVirtualMethod(name, signature); |
| 4565 | break; |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4566 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4567 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4568 | if (resolved != NULL) { |
| 4569 | // We found a method, check for incompatible class changes. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4570 | if (resolved->CheckIncompatibleClassChange(type)) { |
| 4571 | resolved = NULL; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4572 | } |
| 4573 | } |
| 4574 | if (resolved != NULL) { |
| 4575 | // Be a good citizen and update the dex cache to speed subsequent calls. |
| 4576 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 4577 | return resolved; |
| 4578 | } else { |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4579 | // We failed to find the method which means either an access error, an incompatible class |
| 4580 | // 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] | 4581 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4582 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4583 | switch (type) { |
| 4584 | case kDirect: |
| 4585 | case kStatic: |
| 4586 | resolved = klass->FindVirtualMethod(name, signature); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4587 | break; |
| 4588 | case kInterface: |
| 4589 | case kVirtual: |
| 4590 | case kSuper: |
| 4591 | resolved = klass->FindDirectMethod(name, signature); |
| 4592 | break; |
| 4593 | } |
| 4594 | |
| 4595 | // If we found something, check that it can be accessed by the referrer. |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4596 | if (resolved != NULL && referrer.Get() != NULL) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4597 | mirror::Class* methods_class = resolved->GetDeclaringClass(); |
| 4598 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4599 | if (!referring_class->CanAccess(methods_class)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4600 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 4601 | resolved, type); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4602 | return NULL; |
| 4603 | } else if (!referring_class->CanAccessMember(methods_class, |
| 4604 | resolved->GetAccessFlags())) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4605 | ThrowIllegalAccessErrorMethod(referring_class, resolved); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4606 | return NULL; |
| 4607 | } |
| 4608 | } |
| 4609 | |
| 4610 | // Otherwise, throw an IncompatibleClassChangeError if we found something, and check interface |
| 4611 | // methods and throw if we find the method there. If we find nothing, throw a NoSuchMethodError. |
| 4612 | switch (type) { |
| 4613 | case kDirect: |
| 4614 | case kStatic: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4615 | if (resolved != NULL) { |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4616 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer.Get()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4617 | } else { |
| 4618 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4619 | if (resolved != NULL) { |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4620 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer.Get()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4621 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4622 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4623 | } |
| 4624 | } |
| 4625 | break; |
| 4626 | case kInterface: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4627 | if (resolved != NULL) { |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4628 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer.Get()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4629 | } else { |
| 4630 | resolved = klass->FindVirtualMethod(name, signature); |
| 4631 | if (resolved != NULL) { |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4632 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer.Get()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4633 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4634 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4635 | } |
| 4636 | } |
| 4637 | break; |
| 4638 | case kSuper: |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4639 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4640 | break; |
| 4641 | case kVirtual: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4642 | if (resolved != NULL) { |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4643 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer.Get()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4644 | } else { |
| 4645 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4646 | if (resolved != NULL) { |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4647 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer.Get()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4648 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4649 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4650 | } |
| 4651 | } |
| 4652 | break; |
| 4653 | } |
| 4654 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4655 | return NULL; |
| 4656 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4657 | } |
| 4658 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4659 | mirror::ArtField* ClassLinker::ResolveField(const DexFile& dex_file, uint32_t field_idx, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4660 | Handle<mirror::DexCache> dex_cache, |
| 4661 | Handle<mirror::ClassLoader> class_loader, |
Brian Carlstrom | e810452 | 2013-10-15 21:56:36 -0700 | [diff] [blame] | 4662 | bool is_static) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4663 | DCHECK(dex_cache.Get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4664 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4665 | if (resolved != NULL) { |
| 4666 | return resolved; |
| 4667 | } |
| 4668 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4669 | Thread* const self = Thread::Current(); |
| 4670 | StackHandleScope<1> hs(self); |
| 4671 | Handle<mirror::Class> klass( |
| 4672 | hs.NewHandle(ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader))); |
| 4673 | if (klass.Get() == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 4674 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4675 | return NULL; |
| 4676 | } |
| 4677 | |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4678 | if (is_static) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4679 | resolved = mirror::Class::FindStaticField(self, klass, dex_cache.Get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4680 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4681 | resolved = klass->FindInstanceField(dex_cache.Get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4682 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4683 | |
| 4684 | if (resolved == NULL) { |
| 4685 | const char* name = dex_file.GetFieldName(field_id); |
| 4686 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 4687 | if (is_static) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4688 | resolved = mirror::Class::FindStaticField(self, klass, name, type); |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4689 | } else { |
| 4690 | resolved = klass->FindInstanceField(name, type); |
| 4691 | } |
| 4692 | if (resolved == NULL) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4693 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass.Get(), type, name); |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4694 | return NULL; |
| 4695 | } |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4696 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4697 | dex_cache->SetResolvedField(field_idx, resolved); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4698 | return resolved; |
| 4699 | } |
| 4700 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4701 | mirror::ArtField* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4702 | uint32_t field_idx, |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 4703 | Handle<mirror::DexCache> dex_cache, |
| 4704 | Handle<mirror::ClassLoader> class_loader) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4705 | DCHECK(dex_cache.Get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4706 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4707 | if (resolved != NULL) { |
| 4708 | return resolved; |
| 4709 | } |
| 4710 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4711 | Thread* self = Thread::Current(); |
| 4712 | StackHandleScope<1> hs(self); |
| 4713 | Handle<mirror::Class> klass( |
| 4714 | hs.NewHandle(ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader))); |
| 4715 | if (klass.Get() == NULL) { |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4716 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4717 | return NULL; |
| 4718 | } |
| 4719 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4720 | StringPiece name(dex_file.StringDataByIdx(field_id.name_idx_)); |
| 4721 | StringPiece type(dex_file.StringDataByIdx( |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4722 | dex_file.GetTypeId(field_id.type_idx_).descriptor_idx_)); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4723 | resolved = mirror::Class::FindField(self, klass, name, type); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4724 | if (resolved != NULL) { |
| 4725 | dex_cache->SetResolvedField(field_idx, resolved); |
| 4726 | } else { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4727 | ThrowNoSuchFieldError("", klass.Get(), type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4728 | } |
| 4729 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 4730 | } |
| 4731 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4732 | const char* ClassLinker::MethodShorty(uint32_t method_idx, mirror::ArtMethod* referrer, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4733 | uint32_t* length) { |
| 4734 | mirror::Class* declaring_class = referrer->GetDeclaringClass(); |
| 4735 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 4736 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4737 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 4738 | return dex_file.GetMethodShorty(method_id, length); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4739 | } |
| 4740 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4741 | void ClassLinker::DumpAllClasses(int flags) { |
| 4742 | if (dex_cache_image_class_lookup_required_) { |
| 4743 | MoveImageClassesToClassTable(); |
| 4744 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4745 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 4746 | // lock held, because it might need to resolve a field's type, which would try to take the lock. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4747 | std::vector<mirror::Class*> all_classes; |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4748 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4749 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Hiroshi Yamauchi | a91a4bc | 2014-06-13 16:44:55 -0700 | [diff] [blame] | 4750 | for (std::pair<const size_t, mirror::Class*>& it : class_table_) { |
| 4751 | mirror::Class** root = &it.second; |
| 4752 | mirror::Class* klass = ReadBarrier::BarrierForRoot<mirror::Class, kWithReadBarrier>(root); |
| 4753 | all_classes.push_back(klass); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 4754 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4755 | } |
| 4756 | |
| 4757 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 4758 | all_classes[i]->DumpClass(std::cerr, flags); |
| 4759 | } |
| 4760 | } |
| 4761 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4762 | void ClassLinker::DumpForSigQuit(std::ostream& os) { |
| 4763 | if (dex_cache_image_class_lookup_required_) { |
| 4764 | MoveImageClassesToClassTable(); |
| 4765 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4766 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4767 | os << "Loaded classes: " << class_table_.size() << " allocated classes\n"; |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 4768 | } |
| 4769 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4770 | size_t ClassLinker::NumLoadedClasses() { |
| 4771 | if (dex_cache_image_class_lookup_required_) { |
| 4772 | MoveImageClassesToClassTable(); |
| 4773 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4774 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4775 | return class_table_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 4776 | } |
| 4777 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4778 | pid_t ClassLinker::GetClassesLockOwner() { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4779 | return Locks::classlinker_classes_lock_->GetExclusiveOwnerTid(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4780 | } |
| 4781 | |
| 4782 | pid_t ClassLinker::GetDexLockOwner() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4783 | return dex_lock_.GetExclusiveOwnerTid(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 4784 | } |
| 4785 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4786 | void ClassLinker::SetClassRoot(ClassRoot class_root, mirror::Class* klass) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4787 | DCHECK(!init_done_); |
| 4788 | |
| 4789 | DCHECK(klass != NULL); |
| 4790 | DCHECK(klass->GetClassLoader() == NULL); |
| 4791 | |
Hiroshi Yamauchi | e9e3e69 | 2014-06-24 14:31:37 -0700 | [diff] [blame] | 4792 | mirror::ObjectArray<mirror::Class>* class_roots = |
| 4793 | ReadBarrier::BarrierForRoot<mirror::ObjectArray<mirror::Class>, kWithReadBarrier>( |
| 4794 | &class_roots_); |
| 4795 | DCHECK(class_roots != NULL); |
| 4796 | DCHECK(class_roots->Get(class_root) == NULL); |
| 4797 | class_roots->Set<false>(class_root, klass); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4798 | } |
| 4799 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4800 | } // namespace art |