Elliott Hughes | 2faa5f1 | 2012-01-30 14:42:07 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 16 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 17 | #include "class_linker.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 18 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 19 | #include <fcntl.h> |
| 20 | #include <sys/file.h> |
| 21 | #include <sys/stat.h> |
Brian Carlstrom | dbf05b7 | 2011-12-15 00:55:24 -0800 | [diff] [blame] | 22 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 23 | #include <deque> |
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" |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 30 | #include "base/stl_util.h" |
Elliott Hughes | 7616005 | 2012-12-12 16:31:20 -0800 | [diff] [blame] | 31 | #include "base/unix_file/fd_file.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 32 | #include "class_linker-inl.h" |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame] | 33 | #include "compiler_callbacks.h" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 34 | #include "debugger.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 35 | #include "dex_file-inl.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 36 | #include "gc/accounting/card_table-inl.h" |
| 37 | #include "gc/accounting/heap_bitmap.h" |
| 38 | #include "gc/heap.h" |
| 39 | #include "gc/space/image_space.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 40 | #include "handle_scope.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 41 | #include "intern_table.h" |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 42 | #include "interpreter/interpreter.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 43 | #include "leb128.h" |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 44 | #include "oat.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 45 | #include "oat_file.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 46 | #include "mirror/art_field-inl.h" |
| 47 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 48 | #include "mirror/class.h" |
| 49 | #include "mirror/class-inl.h" |
| 50 | #include "mirror/class_loader.h" |
Ian Rogers | 39ebcb8 | 2013-05-30 16:57:23 -0700 | [diff] [blame] | 51 | #include "mirror/dex_cache-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 52 | #include "mirror/iftable-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 53 | #include "mirror/object-inl.h" |
| 54 | #include "mirror/object_array-inl.h" |
| 55 | #include "mirror/proxy.h" |
| 56 | #include "mirror/stack_trace_element.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 57 | #include "object_utils.h" |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 58 | #include "os.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 59 | #include "runtime.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 60 | #include "entrypoints/entrypoint_utils.h" |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 61 | #include "ScopedLocalRef.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 62 | #include "scoped_thread_state_change.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 63 | #include "handle_scope-inl.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 64 | #include "thread.h" |
Ian Rogers | 507dfdd | 2014-05-15 16:42:40 -0700 | [diff] [blame] | 65 | #include "UniquePtrCompat.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 66 | #include "utils.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 67 | #include "verifier/method_verifier.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 68 | #include "well_known_classes.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 69 | |
| 70 | namespace art { |
| 71 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 72 | static void ThrowNoClassDefFoundError(const char* fmt, ...) |
| 73 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 74 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 75 | static void ThrowNoClassDefFoundError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 76 | va_list args; |
| 77 | va_start(args, fmt); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 78 | Thread* self = Thread::Current(); |
| 79 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 80 | self->ThrowNewExceptionV(throw_location, "Ljava/lang/NoClassDefFoundError;", fmt, args); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 81 | va_end(args); |
| 82 | } |
| 83 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 84 | static void ThrowEarlierClassFailure(mirror::Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 85 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 86 | // The class failed to initialize on a previous attempt, so we want to throw |
| 87 | // a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 88 | // failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 89 | // the previous error. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 90 | if (!Runtime::Current()->IsCompiler()) { // Give info if this occurs at runtime. |
| 91 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 92 | } |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 93 | |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 94 | CHECK(c->IsErroneous()) << PrettyClass(c) << " " << c->GetStatus(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 95 | Thread* self = Thread::Current(); |
| 96 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 97 | if (c->GetVerifyErrorClass() != NULL) { |
| 98 | // TODO: change the verifier to store an _instance_, with a useful detail message? |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 99 | ClassHelper ve_ch(c->GetVerifyErrorClass()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 100 | self->ThrowNewException(throw_location, ve_ch.GetDescriptor(), PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 101 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 102 | self->ThrowNewException(throw_location, "Ljava/lang/NoClassDefFoundError;", |
| 103 | PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 104 | } |
| 105 | } |
| 106 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 107 | static void WrapExceptionInInitializer() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 108 | Thread* self = Thread::Current(); |
| 109 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 110 | |
| 111 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 112 | CHECK(cause.get() != NULL); |
| 113 | |
| 114 | env->ExceptionClear(); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 115 | bool is_error = env->IsInstanceOf(cause.get(), WellKnownClasses::java_lang_Error); |
| 116 | env->Throw(cause.get()); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 117 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 118 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 119 | if (!is_error) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 120 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 121 | self->ThrowNewWrappedException(throw_location, "Ljava/lang/ExceptionInInitializerError;", NULL); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 122 | } |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 123 | } |
| 124 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 125 | static size_t Hash(const char* s) { |
| 126 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 127 | size_t hash = 0; |
| 128 | for (; *s != '\0'; ++s) { |
| 129 | hash = hash * 31 + *s; |
| 130 | } |
| 131 | return hash; |
| 132 | } |
| 133 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 134 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 135 | "Ljava/lang/Class;", |
| 136 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 137 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 138 | "[Ljava/lang/Object;", |
| 139 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 140 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 141 | "Ljava/lang/ref/Reference;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 142 | "Ljava/lang/reflect/ArtField;", |
| 143 | "Ljava/lang/reflect/ArtMethod;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 144 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 145 | "[Ljava/lang/String;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 146 | "[Ljava/lang/reflect/ArtField;", |
| 147 | "[Ljava/lang/reflect/ArtMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 148 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 149 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 150 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 151 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 152 | "Z", |
| 153 | "B", |
| 154 | "C", |
| 155 | "D", |
| 156 | "F", |
| 157 | "I", |
| 158 | "J", |
| 159 | "S", |
| 160 | "V", |
| 161 | "[Z", |
| 162 | "[B", |
| 163 | "[C", |
| 164 | "[D", |
| 165 | "[F", |
| 166 | "[I", |
| 167 | "[J", |
| 168 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 169 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 170 | }; |
| 171 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 172 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 173 | // dex_lock_ is recursive as it may be used in stack dumping. |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 174 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel), |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 175 | dex_cache_image_class_lookup_required_(false), |
| 176 | failed_dex_cache_class_lookups_(0), |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 177 | class_roots_(nullptr), |
| 178 | array_iftable_(nullptr), |
| 179 | find_array_class_cache_next_victim_(0), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 180 | init_done_(false), |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 181 | log_new_dex_caches_roots_(false), |
| 182 | log_new_class_table_roots_(false), |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 183 | intern_table_(intern_table), |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 184 | portable_resolution_trampoline_(nullptr), |
| 185 | quick_resolution_trampoline_(nullptr), |
| 186 | portable_imt_conflict_trampoline_(nullptr), |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 187 | quick_imt_conflict_trampoline_(nullptr), |
Vladimir Marko | 8a63057 | 2014-04-09 18:45:35 +0100 | [diff] [blame] | 188 | quick_generic_jni_trampoline_(nullptr), |
| 189 | quick_to_interpreter_bridge_trampoline_(nullptr) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 190 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 191 | memset(find_array_class_cache_, 0, kFindArrayCacheSize * sizeof(mirror::Class*)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 192 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 193 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 194 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 195 | VLOG(startup) << "ClassLinker::Init"; |
| 196 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 197 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 198 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 199 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 200 | // java_lang_Class comes first, it's needed for AllocClass |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 201 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 202 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 203 | // 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] | 204 | heap->IncrementDisableMovingGC(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 205 | StackHandleScope<64> hs(self); // 64 is picked arbitrarily. |
| 206 | Handle<mirror::Class> java_lang_Class(hs.NewHandle(down_cast<mirror::Class*>( |
| 207 | heap->AllocNonMovableObject<true>(self, nullptr, sizeof(mirror::ClassClass), VoidFunctor())))); |
| 208 | CHECK(java_lang_Class.Get() != NULL); |
| 209 | mirror::Class::SetClassClass(java_lang_Class.Get()); |
| 210 | java_lang_Class->SetClass(java_lang_Class.Get()); |
Hiroshi Yamauchi | 624468c | 2014-03-31 15:14:47 -0700 | [diff] [blame] | 211 | if (kUseBakerOrBrooksReadBarrier) { |
| 212 | java_lang_Class->AssertReadBarrierPointer(); |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 213 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 214 | java_lang_Class->SetClassSize(sizeof(mirror::ClassClass)); |
Mathieu Chartier | 1d27b34 | 2014-01-28 12:51:09 -0800 | [diff] [blame] | 215 | heap->DecrementDisableMovingGC(self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 216 | // AllocClass(mirror::Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 217 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 218 | // Class[] is used for reflection support. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 219 | Handle<mirror::Class> class_array_class( |
| 220 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
| 221 | class_array_class->SetComponentType(java_lang_Class.Get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 222 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 223 | // java_lang_Object comes next so that object_array_class can be created. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 224 | Handle<mirror::Class> java_lang_Object( |
| 225 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
| 226 | CHECK(java_lang_Object.Get() != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 227 | // backfill Object as the super class of Class. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 228 | java_lang_Class->SetSuperClass(java_lang_Object.Get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 229 | java_lang_Object->SetStatus(mirror::Class::kStatusLoaded, self); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 230 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 231 | // Object[] next to hold class roots. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 232 | Handle<mirror::Class> object_array_class( |
| 233 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
| 234 | object_array_class->SetComponentType(java_lang_Object.Get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 235 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 236 | // Setup the char class to be used for char[]. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 237 | Handle<mirror::Class> char_class(hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 238 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 239 | // Setup the char[] class to be used for String. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 240 | Handle<mirror::Class> char_array_class(hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
| 241 | char_array_class->SetComponentType(char_class.Get()); |
| 242 | mirror::CharArray::SetArrayClass(char_array_class.Get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 243 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 244 | // Setup String. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 245 | Handle<mirror::Class> java_lang_String(hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::StringClass)))); |
| 246 | mirror::String::SetClass(java_lang_String.Get()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 247 | java_lang_String->SetObjectSize(sizeof(mirror::String)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 248 | java_lang_String->SetStatus(mirror::Class::kStatusResolved, self); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 249 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 250 | // 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] | 251 | class_roots_ = mirror::ObjectArray<mirror::Class>::Alloc(self, object_array_class.Get(), |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 252 | kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 253 | CHECK(class_roots_ != NULL); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 254 | SetClassRoot(kJavaLangClass, java_lang_Class.Get()); |
| 255 | SetClassRoot(kJavaLangObject, java_lang_Object.Get()); |
| 256 | SetClassRoot(kClassArrayClass, class_array_class.Get()); |
| 257 | SetClassRoot(kObjectArrayClass, object_array_class.Get()); |
| 258 | SetClassRoot(kCharArrayClass, char_array_class.Get()); |
| 259 | SetClassRoot(kJavaLangString, java_lang_String.Get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 260 | |
| 261 | // Setup the primitive type classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 262 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(self, Primitive::kPrimBoolean)); |
| 263 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(self, Primitive::kPrimByte)); |
| 264 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(self, Primitive::kPrimShort)); |
| 265 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(self, Primitive::kPrimInt)); |
| 266 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(self, Primitive::kPrimLong)); |
| 267 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(self, Primitive::kPrimFloat)); |
| 268 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(self, Primitive::kPrimDouble)); |
| 269 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(self, Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 270 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 271 | // Create array interface entries to populate once we can load system classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 272 | array_iftable_ = AllocIfTable(self, 2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 273 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 274 | // Create int array type for AllocDexCache (done in AppendToBootClassPath). |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 275 | Handle<mirror::Class> int_array_class( |
| 276 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 277 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 278 | mirror::IntArray::SetArrayClass(int_array_class.Get()); |
| 279 | SetClassRoot(kIntArrayClass, int_array_class.Get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 280 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 281 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 282 | |
Ian Rogers | 52813c9 | 2012-10-11 11:50:38 -0700 | [diff] [blame] | 283 | // Set up DexCache. This cannot be done later since AppendToBootClassPath calls AllocDexCache. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 284 | Handle<mirror::Class> java_lang_DexCache( |
| 285 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::DexCacheClass)))); |
| 286 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.Get()); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 287 | java_lang_DexCache->SetObjectSize(sizeof(mirror::DexCache)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 288 | java_lang_DexCache->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 289 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 290 | // Constructor, Field, Method, and AbstractMethod are necessary so that FindClass can link members. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 291 | Handle<mirror::Class> java_lang_reflect_ArtField( |
| 292 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::ArtFieldClass)))); |
| 293 | CHECK(java_lang_reflect_ArtField.Get() != NULL); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 294 | java_lang_reflect_ArtField->SetObjectSize(sizeof(mirror::ArtField)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 295 | SetClassRoot(kJavaLangReflectArtField, java_lang_reflect_ArtField.Get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 296 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusResolved, self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 297 | mirror::ArtField::SetClass(java_lang_reflect_ArtField.Get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 298 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 299 | Handle<mirror::Class> java_lang_reflect_ArtMethod( |
| 300 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::ArtMethodClass)))); |
| 301 | CHECK(java_lang_reflect_ArtMethod.Get() != NULL); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 302 | java_lang_reflect_ArtMethod->SetObjectSize(sizeof(mirror::ArtMethod)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 303 | SetClassRoot(kJavaLangReflectArtMethod, java_lang_reflect_ArtMethod.Get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 304 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 305 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 306 | mirror::ArtMethod::SetClass(java_lang_reflect_ArtMethod.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 307 | |
| 308 | // Set up array classes for string, field, method |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 309 | Handle<mirror::Class> object_array_string( |
| 310 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
| 311 | object_array_string->SetComponentType(java_lang_String.Get()); |
| 312 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 313 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 314 | Handle<mirror::Class> object_array_art_method( |
| 315 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
| 316 | object_array_art_method->SetComponentType(java_lang_reflect_ArtMethod.Get()); |
| 317 | SetClassRoot(kJavaLangReflectArtMethodArrayClass, object_array_art_method.Get()); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 318 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 319 | Handle<mirror::Class> object_array_art_field( |
| 320 | hs.NewHandle(AllocClass(self, java_lang_Class.Get(), sizeof(mirror::Class)))); |
| 321 | object_array_art_field->SetComponentType(java_lang_reflect_ArtField.Get()); |
| 322 | SetClassRoot(kJavaLangReflectArtFieldArrayClass, object_array_art_field.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 323 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 324 | // Setup boot_class_path_ and register class_path now that we can use AllocObjectArray to create |
| 325 | // DexCache instances. Needs to be after String, Field, Method arrays since AllocDexCache uses |
| 326 | // these roots. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 327 | CHECK_NE(0U, boot_class_path.size()); |
| 328 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 329 | const DexFile* dex_file = boot_class_path[i]; |
| 330 | CHECK(dex_file != NULL); |
| 331 | AppendToBootClassPath(*dex_file); |
| 332 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 333 | |
| 334 | // now we can use FindSystemClass |
| 335 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 336 | // run char class through InitializePrimitiveClass to finish init |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 337 | InitializePrimitiveClass(char_class.Get(), Primitive::kPrimChar); |
| 338 | SetClassRoot(kPrimitiveChar, char_class.Get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 339 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 340 | // Create runtime resolution and imt conflict methods. Also setup the default imt. |
| 341 | Runtime* runtime = Runtime::Current(); |
| 342 | runtime->SetResolutionMethod(runtime->CreateResolutionMethod()); |
| 343 | runtime->SetImtConflictMethod(runtime->CreateImtConflictMethod()); |
| 344 | runtime->SetDefaultImt(runtime->CreateDefaultImt(this)); |
| 345 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 346 | // 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] | 347 | java_lang_Object->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 348 | mirror::Class* Object_class = FindSystemClass(self, "Ljava/lang/Object;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 349 | CHECK_EQ(java_lang_Object.Get(), Object_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 350 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(mirror::Object)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 351 | java_lang_String->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 352 | mirror::Class* String_class = FindSystemClass(self, "Ljava/lang/String;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 353 | CHECK_EQ(java_lang_String.Get(), String_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 354 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(mirror::String)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 355 | java_lang_DexCache->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 356 | mirror::Class* DexCache_class = FindSystemClass(self, "Ljava/lang/DexCache;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 357 | CHECK_EQ(java_lang_String.Get(), String_class); |
| 358 | CHECK_EQ(java_lang_DexCache.Get(), DexCache_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 359 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), sizeof(mirror::DexCache)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 360 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 361 | // 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] | 362 | SetClassRoot(kBooleanArrayClass, FindSystemClass(self, "[Z")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 363 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 364 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 365 | SetClassRoot(kByteArrayClass, FindSystemClass(self, "[B")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 366 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 367 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 368 | mirror::Class* found_char_array_class = FindSystemClass(self, "[C"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 369 | CHECK_EQ(char_array_class.Get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 370 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 371 | SetClassRoot(kShortArrayClass, FindSystemClass(self, "[S")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 372 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 373 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 374 | mirror::Class* found_int_array_class = FindSystemClass(self, "[I"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 375 | CHECK_EQ(int_array_class.Get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 376 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 377 | SetClassRoot(kLongArrayClass, FindSystemClass(self, "[J")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 378 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 379 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 380 | SetClassRoot(kFloatArrayClass, FindSystemClass(self, "[F")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 381 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 382 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 383 | SetClassRoot(kDoubleArrayClass, FindSystemClass(self, "[D")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 384 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 385 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 386 | mirror::Class* found_class_array_class = FindSystemClass(self, "[Ljava/lang/Class;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 387 | CHECK_EQ(class_array_class.Get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 388 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 389 | mirror::Class* found_object_array_class = FindSystemClass(self, "[Ljava/lang/Object;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 390 | CHECK_EQ(object_array_class.Get(), found_object_array_class); |
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 single, global copy of "iftable". |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 393 | mirror::Class* java_lang_Cloneable = FindSystemClass(self, "Ljava/lang/Cloneable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 394 | CHECK(java_lang_Cloneable != NULL); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 395 | mirror::Class* java_io_Serializable = FindSystemClass(self, "Ljava/io/Serializable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 396 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 397 | // We assume that Cloneable/Serializable don't have superinterfaces -- normally we'd have to |
| 398 | // crawl up and explicitly list all of the supers as well. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 399 | array_iftable_->SetInterface(0, java_lang_Cloneable); |
| 400 | array_iftable_->SetInterface(1, java_io_Serializable); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 401 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 402 | // Sanity check Class[] and Object[]'s interfaces. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 403 | ClassHelper kh(class_array_class.Get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 404 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 405 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 406 | kh.ChangeClass(object_array_class.Get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 407 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 408 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 409 | // Run Class, ArtField, and ArtMethod through FindSystemClass. This initializes their |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 410 | // dex_cache_ fields and register them in class_table_. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 411 | mirror::Class* Class_class = FindSystemClass(self, "Ljava/lang/Class;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 412 | CHECK_EQ(java_lang_Class.Get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 413 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 414 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 415 | mirror::Class* Art_method_class = FindSystemClass(self, "Ljava/lang/reflect/ArtMethod;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 416 | CHECK_EQ(java_lang_reflect_ArtMethod.Get(), Art_method_class); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 417 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 418 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 419 | mirror::Class* Art_field_class = FindSystemClass(self, "Ljava/lang/reflect/ArtField;"); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 420 | CHECK_EQ(java_lang_reflect_ArtField.Get(), Art_field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 421 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 422 | mirror::Class* String_array_class = FindSystemClass(self, class_roots_descriptors_[kJavaLangStringArrayClass]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 423 | CHECK_EQ(object_array_string.Get(), String_array_class); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 424 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 425 | mirror::Class* Art_method_array_class = |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 426 | FindSystemClass(self, class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 427 | CHECK_EQ(object_array_art_method.Get(), Art_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 428 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 429 | mirror::Class* Art_field_array_class = |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 430 | FindSystemClass(self, class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 431 | CHECK_EQ(object_array_art_field.Get(), Art_field_array_class); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 432 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 433 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 434 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 435 | // Create java.lang.reflect.Proxy root. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 436 | mirror::Class* java_lang_reflect_Proxy = FindSystemClass(self, "Ljava/lang/reflect/Proxy;"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 437 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 438 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 439 | // java.lang.ref classes need to be specially flagged, but otherwise are normal classes |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 440 | mirror::Class* java_lang_ref_Reference = FindSystemClass(self, "Ljava/lang/ref/Reference;"); |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 441 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 442 | mirror::Class* java_lang_ref_FinalizerReference = FindSystemClass(self, "Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 443 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 444 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 445 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 446 | mirror::Class* java_lang_ref_PhantomReference = FindSystemClass(self, "Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 447 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 448 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 449 | kAccClassIsReference | kAccClassIsPhantomReference); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 450 | mirror::Class* java_lang_ref_SoftReference = FindSystemClass(self, "Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 451 | java_lang_ref_SoftReference->SetAccessFlags( |
| 452 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 453 | mirror::Class* java_lang_ref_WeakReference = FindSystemClass(self, "Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 454 | java_lang_ref_WeakReference->SetAccessFlags( |
| 455 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 456 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 457 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 458 | // Setup the ClassLoader, verifying the object_size_. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 459 | mirror::Class* java_lang_ClassLoader = FindSystemClass(self, "Ljava/lang/ClassLoader;"); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 460 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(mirror::ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 461 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 462 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 463 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 464 | // java.lang.StackTraceElement as a convenience. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 465 | SetClassRoot(kJavaLangThrowable, FindSystemClass(self, "Ljava/lang/Throwable;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 466 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 467 | SetClassRoot(kJavaLangClassNotFoundException, FindSystemClass(self, "Ljava/lang/ClassNotFoundException;")); |
| 468 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass(self, "Ljava/lang/StackTraceElement;")); |
| 469 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass(self, "[Ljava/lang/StackTraceElement;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 470 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 471 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 472 | FinishInit(self); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 473 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 474 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 475 | } |
| 476 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 477 | void ClassLinker::FinishInit(Thread* self) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 478 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 479 | |
| 480 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 481 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 482 | // as the types of the field can't be resolved prior to the runtime being |
| 483 | // fully initialized |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 484 | mirror::Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 485 | mirror::Class* java_lang_ref_FinalizerReference = |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 486 | FindSystemClass(self, "Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 487 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 488 | mirror::ArtField* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 489 | FieldHelper fh(pendingNext); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 490 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 491 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/Reference;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 492 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 493 | mirror::ArtField* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 494 | fh.ChangeField(queue); |
| 495 | CHECK_STREQ(fh.GetName(), "queue"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 496 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 497 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 498 | mirror::ArtField* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 499 | fh.ChangeField(queueNext); |
| 500 | CHECK_STREQ(fh.GetName(), "queueNext"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 501 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/Reference;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 502 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 503 | mirror::ArtField* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 504 | fh.ChangeField(referent); |
| 505 | CHECK_STREQ(fh.GetName(), "referent"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 506 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/Object;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 507 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 508 | mirror::ArtField* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 509 | fh.ChangeField(zombie); |
| 510 | CHECK_STREQ(fh.GetName(), "zombie"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 511 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/Object;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 512 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 513 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 514 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 515 | ClassRoot class_root = static_cast<ClassRoot>(i); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 516 | mirror::Class* klass = GetClassRoot(class_root); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 517 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 518 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 519 | // note SetClassRoot does additional validation. |
| 520 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 521 | } |
| 522 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 523 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 524 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 525 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 526 | // that Object, Class, and Object[] are setup |
| 527 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 528 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 529 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 530 | } |
| 531 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 532 | void ClassLinker::RunRootClinits() { |
| 533 | Thread* self = Thread::Current(); |
| 534 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 535 | mirror::Class* c = GetClassRoot(ClassRoot(i)); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 536 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 537 | StackHandleScope<1> hs(self); |
| 538 | Handle<mirror::Class> h_class(hs.NewHandle(GetClassRoot(ClassRoot(i)))); |
| 539 | EnsureInitialized(h_class, true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 540 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 541 | } |
| 542 | } |
| 543 | } |
| 544 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 545 | bool ClassLinker::GenerateOatFile(const char* dex_filename, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 546 | int oat_fd, |
Vladimir Marko | 60836d5 | 2014-01-16 15:53:38 +0000 | [diff] [blame] | 547 | const char* oat_cache_filename, |
| 548 | std::string* error_msg) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 549 | Locks::mutator_lock_->AssertNotHeld(Thread::Current()); // Avoid starving GC. |
Brian Carlstrom | 35d8b8e | 2014-02-25 10:51:11 -0800 | [diff] [blame] | 550 | std::string dex2oat(GetAndroidRoot()); |
| 551 | dex2oat += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 552 | |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 553 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 554 | std::string boot_image_option("--boot-image="); |
Brian Carlstrom | 0e12bdc | 2014-05-14 17:44:28 -0700 | [diff] [blame^] | 555 | boot_image_option += heap->GetImageSpace()->GetImageLocation(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 556 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 557 | std::string dex_file_option("--dex-file="); |
| 558 | dex_file_option += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 559 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 560 | std::string oat_fd_option("--oat-fd="); |
| 561 | StringAppendF(&oat_fd_option, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 562 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 563 | std::string oat_location_option("--oat-location="); |
| 564 | oat_location_option += oat_cache_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 565 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 566 | std::vector<std::string> argv; |
| 567 | argv.push_back(dex2oat); |
| 568 | argv.push_back("--runtime-arg"); |
| 569 | argv.push_back("-Xms64m"); |
| 570 | argv.push_back("--runtime-arg"); |
| 571 | argv.push_back("-Xmx64m"); |
| 572 | argv.push_back("--runtime-arg"); |
| 573 | argv.push_back("-classpath"); |
| 574 | argv.push_back("--runtime-arg"); |
Brian Carlstrom | 35d8b8e | 2014-02-25 10:51:11 -0800 | [diff] [blame] | 575 | argv.push_back(Runtime::Current()->GetClassPathString()); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 576 | |
Ian Rogers | 8afeb85 | 2014-04-02 14:55:49 -0700 | [diff] [blame] | 577 | Runtime::Current()->AddCurrentRuntimeFeaturesAsDex2OatArguments(&argv); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 578 | |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 579 | if (!Runtime::Current()->IsVerificationEnabled()) { |
| 580 | argv.push_back("--compiler-filter=verify-none"); |
| 581 | } |
| 582 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 583 | if (!kIsTargetBuild) { |
| 584 | argv.push_back("--host"); |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 585 | } |
Ian Rogers | 8afeb85 | 2014-04-02 14:55:49 -0700 | [diff] [blame] | 586 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 587 | argv.push_back(boot_image_option); |
| 588 | argv.push_back(dex_file_option); |
| 589 | argv.push_back(oat_fd_option); |
| 590 | argv.push_back(oat_location_option); |
| 591 | const std::vector<std::string>& compiler_options = Runtime::Current()->GetCompilerOptions(); |
Brian Carlstrom | 2ec6520 | 2014-03-03 15:16:37 -0800 | [diff] [blame] | 592 | for (size_t i = 0; i < compiler_options.size(); ++i) { |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 593 | argv.push_back(compiler_options[i].c_str()); |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 594 | } |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 595 | |
| 596 | return Exec(argv, error_msg); |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 597 | } |
| 598 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 599 | const OatFile* ClassLinker::RegisterOatFile(const OatFile* oat_file) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 600 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0d6adac | 2014-02-05 17:39:16 -0800 | [diff] [blame] | 601 | if (kIsDebugBuild) { |
| 602 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 603 | CHECK_NE(oat_file, oat_files_[i]) << oat_file->GetLocation(); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 604 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 605 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 606 | VLOG(class_linker) << "Registering " << oat_file->GetLocation(); |
| 607 | oat_files_.push_back(oat_file); |
| 608 | return oat_file; |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 609 | } |
| 610 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 611 | OatFile& ClassLinker::GetImageOatFile(gc::space::ImageSpace* space) { |
| 612 | VLOG(startup) << "ClassLinker::GetImageOatFile entering"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 613 | OatFile* oat_file = space->ReleaseOatFile(); |
| 614 | CHECK_EQ(RegisterOatFile(oat_file), oat_file); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 615 | VLOG(startup) << "ClassLinker::GetImageOatFile exiting"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 616 | return *oat_file; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 617 | } |
| 618 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 619 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 620 | const char* dex_location = dex_file.GetLocation().c_str(); |
| 621 | uint32_t dex_location_checksum = dex_file.GetLocationChecksum(); |
| 622 | return FindOpenedOatFileFromDexLocation(dex_location, &dex_location_checksum); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 623 | } |
| 624 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 625 | const OatFile* ClassLinker::FindOpenedOatFileFromDexLocation(const char* dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 626 | const uint32_t* const dex_location_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 627 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 628 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 629 | const OatFile* oat_file = oat_files_[i]; |
| 630 | DCHECK(oat_file != NULL); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 631 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 632 | dex_location_checksum, |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 633 | false); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 634 | if (oat_dex_file != NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 635 | return oat_file; |
| 636 | } |
| 637 | } |
| 638 | return NULL; |
| 639 | } |
| 640 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 641 | const DexFile* ClassLinker::FindDexFileInOatLocation(const char* dex_location, |
Ian Rogers | e3359f7 | 2013-06-11 15:14:11 -0700 | [diff] [blame] | 642 | uint32_t dex_location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 643 | const char* oat_location, |
| 644 | std::string* error_msg) { |
Brian Carlstrom | f1d3455 | 2013-07-12 20:22:23 -0700 | [diff] [blame] | 645 | UniquePtr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 646 | !Runtime::Current()->IsCompiler(), |
| 647 | error_msg)); |
| 648 | if (oat_file.get() == nullptr) { |
| 649 | *error_msg = StringPrintf("Failed to find existing oat file at %s: %s", oat_location, |
| 650 | error_msg->c_str()); |
| 651 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 652 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 653 | Runtime* runtime = Runtime::Current(); |
| 654 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 655 | uint32_t expected_image_oat_checksum = image_header.GetOatChecksum(); |
| 656 | uint32_t actual_image_oat_checksum = oat_file->GetOatHeader().GetImageFileLocationOatChecksum(); |
| 657 | if (expected_image_oat_checksum != actual_image_oat_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 658 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat checksum of " |
| 659 | "0x%x, found 0x%x", oat_location, expected_image_oat_checksum, |
| 660 | actual_image_oat_checksum); |
| 661 | return nullptr; |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 662 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 663 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 664 | 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] | 665 | uint32_t actual_image_oat_offset = oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(); |
| 666 | if (expected_image_oat_offset != actual_image_oat_offset) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 667 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat offset %" |
| 668 | PRIuPTR ", found %ud", oat_location, expected_image_oat_offset, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 669 | actual_image_oat_offset); |
| 670 | return nullptr; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 671 | } |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 672 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
| 673 | &dex_location_checksum); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 674 | if (oat_dex_file == nullptr) { |
| 675 | *error_msg = StringPrintf("Failed to find oat file at '%s' containing '%s'", oat_location, |
| 676 | dex_location); |
| 677 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 678 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 679 | uint32_t expected_dex_checksum = dex_location_checksum; |
| 680 | uint32_t actual_dex_checksum = oat_dex_file->GetDexFileLocationChecksum(); |
| 681 | if (expected_dex_checksum != actual_dex_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 682 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected dex checksum of 0x%x, " |
| 683 | "found 0x%x", oat_location, expected_dex_checksum, |
| 684 | actual_dex_checksum); |
| 685 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 686 | } |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 687 | const DexFile* dex_file = oat_dex_file->OpenDexFile(error_msg); |
| 688 | if (dex_file != nullptr) { |
| 689 | RegisterOatFile(oat_file.release()); |
| 690 | } |
| 691 | return dex_file; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 692 | } |
| 693 | |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 694 | class ScopedFlock { |
| 695 | public: |
| 696 | ScopedFlock() {} |
| 697 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 698 | bool Init(const char* filename, std::string* error_msg) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 699 | while (true) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 700 | file_.reset(OS::OpenFileWithFlags(filename, O_CREAT | O_RDWR)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 701 | if (file_.get() == NULL) { |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 702 | *error_msg = StringPrintf("Failed to open file '%s': %s", filename, strerror(errno)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 703 | return false; |
| 704 | } |
| 705 | int flock_result = TEMP_FAILURE_RETRY(flock(file_->Fd(), LOCK_EX)); |
| 706 | if (flock_result != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 707 | *error_msg = StringPrintf("Failed to lock file '%s': %s", filename, strerror(errno)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 708 | return false; |
| 709 | } |
| 710 | struct stat fstat_stat; |
| 711 | int fstat_result = TEMP_FAILURE_RETRY(fstat(file_->Fd(), &fstat_stat)); |
| 712 | if (fstat_result != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 713 | *error_msg = StringPrintf("Failed to fstat file '%s': %s", filename, strerror(errno)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 714 | return false; |
| 715 | } |
| 716 | struct stat stat_stat; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 717 | int stat_result = TEMP_FAILURE_RETRY(stat(filename, &stat_stat)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 718 | if (stat_result != 0) { |
| 719 | PLOG(WARNING) << "Failed to stat, will retry: " << filename; |
| 720 | // ENOENT can happen if someone racing with us unlinks the file we created so just retry. |
| 721 | continue; |
| 722 | } |
| 723 | if (fstat_stat.st_dev != stat_stat.st_dev || fstat_stat.st_ino != stat_stat.st_ino) { |
| 724 | LOG(WARNING) << "File changed while locking, will retry: " << filename; |
| 725 | continue; |
| 726 | } |
| 727 | return true; |
| 728 | } |
| 729 | } |
| 730 | |
| 731 | File& GetFile() { |
| 732 | return *file_; |
| 733 | } |
| 734 | |
| 735 | ~ScopedFlock() { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 736 | if (file_.get() != NULL) { |
| 737 | int flock_result = TEMP_FAILURE_RETRY(flock(file_->Fd(), LOCK_UN)); |
| 738 | CHECK_EQ(0, flock_result); |
| 739 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 740 | } |
| 741 | |
| 742 | private: |
| 743 | UniquePtr<File> file_; |
| 744 | |
| 745 | DISALLOW_COPY_AND_ASSIGN(ScopedFlock); |
| 746 | }; |
| 747 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 748 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocation(const char* dex_location, |
| 749 | uint32_t dex_location_checksum, |
| 750 | const char* oat_location, |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 751 | std::vector<std::string>* error_msgs) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 752 | // We play a locking game here so that if two different processes |
| 753 | // race to generate (or worse, one tries to open a partial generated |
| 754 | // file) we will be okay. This is actually common with apps that use |
| 755 | // DexClassLoader to work around the dex method reference limit and |
| 756 | // that have a background service running in a separate process. |
| 757 | ScopedFlock scoped_flock; |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 758 | std::string error_msg; |
| 759 | if (!scoped_flock.Init(oat_location, &error_msg)) { |
| 760 | error_msgs->push_back(error_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 761 | return nullptr; |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 762 | } |
| 763 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 764 | // Check if we already have an up-to-date output file |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 765 | const DexFile* dex_file = FindDexFileInOatLocation(dex_location, dex_location_checksum, |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 766 | oat_location, &error_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 767 | if (dex_file != nullptr) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 768 | return dex_file; |
| 769 | } |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 770 | std::string compound_msg = StringPrintf("Failed to find dex file '%s' in oat location '%s': %s", |
| 771 | dex_location, oat_location, error_msg.c_str()); |
| 772 | VLOG(class_linker) << compound_msg; |
| 773 | error_msgs->push_back(compound_msg); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 774 | |
| 775 | // Generate the output oat file for the dex file |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 776 | VLOG(class_linker) << "Generating oat file " << oat_location << " for " << dex_location; |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 777 | if (!GenerateOatFile(dex_location, scoped_flock.GetFile().Fd(), oat_location, &error_msg)) { |
| 778 | CHECK(!error_msg.empty()); |
| 779 | error_msgs->push_back(error_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 780 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 781 | } |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 782 | UniquePtr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL, |
| 783 | !Runtime::Current()->IsCompiler(), |
| 784 | &error_msg)); |
| 785 | if (oat_file.get() == nullptr) { |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 786 | compound_msg = StringPrintf("\nFailed to open generated oat file '%s': %s", |
| 787 | oat_location, error_msg.c_str()); |
| 788 | error_msgs->push_back(compound_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 789 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 790 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 791 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
| 792 | &dex_location_checksum); |
| 793 | if (oat_dex_file == nullptr) { |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 794 | error_msg = StringPrintf("\nFailed to find dex file '%s' (checksum 0x%x) in generated out file " |
| 795 | "'%s'", dex_location, dex_location_checksum, oat_location); |
| 796 | error_msgs->push_back(error_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 797 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 798 | } |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 799 | const DexFile* result = oat_dex_file->OpenDexFile(&error_msg); |
| 800 | CHECK(result != nullptr) << error_msgs << ", " << error_msg; |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 801 | CHECK_EQ(dex_location_checksum, result->GetLocationChecksum()) |
| 802 | << "dex_location=" << dex_location << " oat_location=" << oat_location << std::hex |
| 803 | << " dex_location_checksum=" << dex_location_checksum |
Brian Carlstrom | b00309f | 2013-09-30 14:23:30 -0700 | [diff] [blame] | 804 | << " DexFile::GetLocationChecksum()=" << result->GetLocationChecksum(); |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 805 | RegisterOatFile(oat_file.release()); |
Brian Carlstrom | b00309f | 2013-09-30 14:23:30 -0700 | [diff] [blame] | 806 | return result; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 807 | } |
| 808 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 809 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 810 | const char* dex_location, |
| 811 | uint32_t dex_location_checksum, |
Narayan Kamath | 52f8488 | 2014-05-02 10:10:39 +0100 | [diff] [blame] | 812 | const InstructionSet instruction_set, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 813 | std::string* error_msg) { |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 814 | Runtime* runtime = Runtime::Current(); |
Narayan Kamath | 52f8488 | 2014-05-02 10:10:39 +0100 | [diff] [blame] | 815 | const gc::space::ImageSpace* image_space = runtime->GetHeap()->GetImageSpace(); |
| 816 | |
| 817 | // If the requested instruction set is the same as the current runtime, |
| 818 | // we can use the checksums directly. If it isn't, we'll have to read the |
| 819 | // image header from the image for the right instruction set. |
| 820 | uint32_t image_oat_checksum = 0; |
| 821 | uintptr_t image_oat_data_begin = 0; |
| 822 | if (instruction_set == kRuntimeISA) { |
| 823 | const ImageHeader& image_header = image_space->GetImageHeader(); |
| 824 | image_oat_checksum = image_header.GetOatChecksum(); |
| 825 | image_oat_data_begin = reinterpret_cast<uintptr_t>(image_header.GetOatDataBegin()); |
| 826 | } else { |
| 827 | UniquePtr<ImageHeader> image_header(gc::space::ImageSpace::ReadImageHeaderOrDie( |
| 828 | image_space->GetImageLocation().c_str(), instruction_set)); |
| 829 | image_oat_checksum = image_header->GetOatChecksum(); |
| 830 | image_oat_data_begin = reinterpret_cast<uintptr_t>(image_header->GetOatDataBegin()); |
| 831 | } |
| 832 | const OatHeader& oat_header = oat_file->GetOatHeader(); |
| 833 | bool image_check = ((oat_header.GetImageFileLocationOatChecksum() == image_oat_checksum) |
| 834 | && (oat_header.GetImageFileLocationOatDataBegin() == image_oat_data_begin)); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 835 | |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 836 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, &dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 837 | if (oat_dex_file == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 838 | *error_msg = StringPrintf("oat file '%s' does not contain contents for '%s' with checksum 0x%x", |
| 839 | oat_file->GetLocation().c_str(), dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 840 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 841 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 842 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 843 | *error_msg += StringPrintf("\noat file '%s' contains contents for '%s'", |
| 844 | oat_file->GetLocation().c_str(), |
| 845 | oat_dex_file->GetDexFileLocation().c_str()); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 846 | } |
| 847 | return false; |
| 848 | } |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 849 | bool dex_check = dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 850 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 851 | if (image_check && dex_check) { |
| 852 | return true; |
| 853 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 854 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 855 | if (!image_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 856 | ScopedObjectAccess soa(Thread::Current()); |
Nicolas Geoffray | 9583fbc | 2014-02-28 15:21:07 +0000 | [diff] [blame] | 857 | *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] | 858 | oat_file->GetLocation().c_str(), |
| 859 | oat_file->GetOatHeader().GetImageFileLocationOatChecksum(), |
| 860 | oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(), |
Nicolas Geoffray | 9583fbc | 2014-02-28 15:21:07 +0000 | [diff] [blame] | 861 | image_oat_checksum, image_oat_data_begin); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 862 | } |
| 863 | if (!dex_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 864 | *error_msg = StringPrintf("oat file '%s' mismatch (0x%x) with '%s' (0x%x)", |
| 865 | oat_file->GetLocation().c_str(), |
| 866 | oat_dex_file->GetDexFileLocationChecksum(), |
| 867 | dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 868 | } |
| 869 | return false; |
| 870 | } |
| 871 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 872 | const DexFile* ClassLinker::VerifyAndOpenDexFileFromOatFile(const std::string& oat_file_location, |
| 873 | const char* dex_location, |
| 874 | std::string* error_msg, |
| 875 | bool* open_failed) { |
| 876 | UniquePtr<const OatFile> oat_file(FindOatFileFromOatLocation(oat_file_location, error_msg)); |
| 877 | if (oat_file.get() == nullptr) { |
| 878 | *open_failed = true; |
| 879 | return nullptr; |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 880 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 881 | *open_failed = false; |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 882 | const DexFile* dex_file = nullptr; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 883 | uint32_t dex_location_checksum; |
| 884 | if (!DexFile::GetChecksum(dex_location, &dex_location_checksum, error_msg)) { |
| 885 | // If no classes.dex found in dex_location, it has been stripped or is corrupt, assume oat is |
| 886 | // up-to-date. This is the common case in user builds for jar's and apk's in the /system |
| 887 | // directory. |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 888 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, NULL); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 889 | if (oat_dex_file == nullptr) { |
| 890 | *error_msg = StringPrintf("Dex checksum mismatch for location '%s' and failed to find oat " |
| 891 | "dex file '%s': %s", oat_file_location.c_str(), dex_location, |
| 892 | error_msg->c_str()); |
| 893 | return nullptr; |
| 894 | } |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 895 | dex_file = oat_dex_file->OpenDexFile(error_msg); |
| 896 | } else { |
| 897 | bool verified = VerifyOatFileChecksums(oat_file.get(), dex_location, dex_location_checksum, |
Narayan Kamath | 52f8488 | 2014-05-02 10:10:39 +0100 | [diff] [blame] | 898 | kRuntimeISA, error_msg); |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 899 | if (!verified) { |
| 900 | return nullptr; |
| 901 | } |
| 902 | dex_file = oat_file->GetOatDexFile(dex_location, |
| 903 | &dex_location_checksum)->OpenDexFile(error_msg); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 904 | } |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 905 | if (dex_file != nullptr) { |
| 906 | RegisterOatFile(oat_file.release()); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 907 | } |
Vladimir Marko | 64e7ac0 | 2014-05-01 15:43:47 +0100 | [diff] [blame] | 908 | return dex_file; |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 909 | } |
| 910 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 911 | const DexFile* ClassLinker::FindDexFileInOatFileFromDexLocation(const char* dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 912 | const uint32_t* const dex_location_checksum, |
Brian Carlstrom | 0e12bdc | 2014-05-14 17:44:28 -0700 | [diff] [blame^] | 913 | InstructionSet isa, |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 914 | std::vector<std::string>* error_msgs) { |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 915 | const OatFile* open_oat_file = FindOpenedOatFileFromDexLocation(dex_location, |
| 916 | dex_location_checksum); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 917 | if (open_oat_file != nullptr) { |
| 918 | const OatFile::OatDexFile* oat_dex_file = open_oat_file->GetOatDexFile(dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 919 | dex_location_checksum); |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 920 | std::string error_msg; |
| 921 | const DexFile* ret = oat_dex_file->OpenDexFile(&error_msg); |
| 922 | if (ret == nullptr) { |
| 923 | error_msgs->push_back(error_msg); |
| 924 | } |
| 925 | return ret; |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 926 | } |
| 927 | |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 928 | // Look for an existing file next to dex. for example, for |
Brian Carlstrom | 0e12bdc | 2014-05-14 17:44:28 -0700 | [diff] [blame^] | 929 | // /foo/bar/baz.jar, look for /foo/bar/<isa>/baz.odex. |
| 930 | std::string odex_filename(DexFilenameToOdexFilename(dex_location, isa)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 931 | bool open_failed; |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 932 | std::string error_msg; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 933 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(odex_filename, dex_location, |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 934 | &error_msg, &open_failed); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 935 | if (dex_file != nullptr) { |
| 936 | return dex_file; |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 937 | } |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 938 | if (dex_location_checksum == nullptr) { |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 939 | error_msgs->push_back(StringPrintf("Failed to open oat file from %s and no classes.dex found in" |
| 940 | "%s: %s", odex_filename.c_str(), dex_location, |
| 941 | error_msg.c_str())); |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 942 | return nullptr; |
| 943 | } |
| 944 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 945 | std::string cache_error_msg; |
Narayan Kamath | 11d9f06 | 2014-04-23 20:24:57 +0100 | [diff] [blame] | 946 | const std::string dalvik_cache(GetDalvikCacheOrDie(GetInstructionSetString(kRuntimeISA))); |
| 947 | std::string cache_location(GetDalvikCacheFilenameOrDie(dex_location, |
| 948 | dalvik_cache.c_str())); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 949 | dex_file = VerifyAndOpenDexFileFromOatFile(cache_location, dex_location, &cache_error_msg, |
| 950 | &open_failed); |
| 951 | if (dex_file != nullptr) { |
| 952 | return dex_file; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 953 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 954 | if (!open_failed && TEMP_FAILURE_RETRY(unlink(cache_location.c_str())) != 0) { |
| 955 | PLOG(FATAL) << "Failed to remove obsolete oat file from " << cache_location; |
| 956 | } |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 957 | std::string compound_msg = StringPrintf("Failed to open oat file from %s (error '%s') or %s " |
| 958 | "(error '%s').", odex_filename.c_str(), error_msg.c_str(), |
| 959 | cache_location.c_str(), cache_error_msg.c_str()); |
| 960 | VLOG(class_linker) << compound_msg; |
| 961 | error_msgs->push_back(compound_msg); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 962 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 963 | // Try to generate oat file if it wasn't found or was obsolete. |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 964 | return FindOrCreateOatFileForDexLocation(dex_location, *dex_location_checksum, |
Andreas Gampe | 329d188 | 2014-04-08 10:32:19 -0700 | [diff] [blame] | 965 | cache_location.c_str(), error_msgs); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 966 | } |
| 967 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 968 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 969 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 970 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 971 | const OatFile* oat_file = oat_files_[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 972 | DCHECK(oat_file != nullptr); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 973 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 974 | return oat_file; |
| 975 | } |
| 976 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 977 | return nullptr; |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 978 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 979 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 980 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location, |
| 981 | std::string* error_msg) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 982 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 983 | if (oat_file != nullptr) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 984 | return oat_file; |
| 985 | } |
| 986 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 987 | oat_file = OatFile::Open(oat_location, oat_location, NULL, !Runtime::Current()->IsCompiler(), |
| 988 | error_msg); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 989 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 990 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 991 | } |
| 992 | return oat_file; |
| 993 | } |
| 994 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 995 | static void InitFromImageInterpretOnlyCallback(mirror::Object* obj, void* arg) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 996 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 997 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
| 998 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 999 | DCHECK(obj != NULL); |
| 1000 | DCHECK(class_linker != NULL); |
| 1001 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1002 | if (obj->IsArtMethod()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1003 | mirror::ArtMethod* method = obj->AsArtMethod(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1004 | if (!method->IsNative()) { |
| 1005 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
| 1006 | if (method != Runtime::Current()->GetResolutionMethod()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1007 | method->SetEntryPointFromQuickCompiledCode(GetQuickToInterpreterBridge()); |
| 1008 | method->SetEntryPointFromPortableCompiledCode(GetPortableToInterpreterBridge()); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1009 | } |
| 1010 | } |
| 1011 | } |
| 1012 | } |
| 1013 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1014 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1015 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1016 | CHECK(!init_done_); |
| 1017 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1018 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1019 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 1020 | gc::space::ImageSpace* space = heap->GetImageSpace(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1021 | dex_cache_image_class_lookup_required_ = true; |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1022 | CHECK(space != NULL); |
| 1023 | OatFile& oat_file = GetImageOatFile(space); |
| 1024 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatChecksum(), 0U); |
| 1025 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatDataBegin(), 0U); |
| 1026 | CHECK(oat_file.GetOatHeader().GetImageFileLocation().empty()); |
| 1027 | portable_resolution_trampoline_ = oat_file.GetOatHeader().GetPortableResolutionTrampoline(); |
| 1028 | quick_resolution_trampoline_ = oat_file.GetOatHeader().GetQuickResolutionTrampoline(); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1029 | portable_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetPortableImtConflictTrampoline(); |
| 1030 | quick_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetQuickImtConflictTrampoline(); |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1031 | quick_generic_jni_trampoline_ = oat_file.GetOatHeader().GetQuickGenericJniTrampoline(); |
Vladimir Marko | 8a63057 | 2014-04-09 18:45:35 +0100 | [diff] [blame] | 1032 | quick_to_interpreter_bridge_trampoline_ = oat_file.GetOatHeader().GetQuickToInterpreterBridge(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1033 | mirror::Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 1034 | mirror::ObjectArray<mirror::DexCache>* dex_caches = |
| 1035 | dex_caches_object->AsObjectArray<mirror::DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1036 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1037 | StackHandleScope<1> hs(self); |
| 1038 | Handle<mirror::ObjectArray<mirror::Class>> class_roots(hs.NewHandle( |
| 1039 | space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots)-> |
| 1040 | AsObjectArray<mirror::Class>())); |
| 1041 | class_roots_ = class_roots.Get(); |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1042 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1043 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 1044 | // as being Strings or not |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1045 | mirror::String::SetClass(GetClassRoot(kJavaLangString)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1046 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1047 | CHECK_EQ(oat_file.GetOatHeader().GetDexFileCount(), |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1048 | static_cast<uint32_t>(dex_caches->GetLength())); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1049 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1050 | StackHandleScope<1> hs(self); |
| 1051 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(dex_caches->Get(i))); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1052 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1053 | const OatFile::OatDexFile* oat_dex_file = oat_file.GetOatDexFile(dex_file_location.c_str(), |
| 1054 | nullptr); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1055 | CHECK(oat_dex_file != NULL) << oat_file.GetLocation() << " " << dex_file_location; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1056 | std::string error_msg; |
| 1057 | const DexFile* dex_file = oat_dex_file->OpenDexFile(&error_msg); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1058 | if (dex_file == NULL) { |
| 1059 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1060 | << " from within oat file " << oat_file.GetLocation() |
| 1061 | << " error '" << error_msg << "'"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1062 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1063 | |
| 1064 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 1065 | |
| 1066 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1067 | } |
| 1068 | |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1069 | // Set classes on AbstractMethod early so that IsMethod tests can be performed during the live |
| 1070 | // bitmap walk. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1071 | mirror::ArtMethod::SetClass(GetClassRoot(kJavaLangReflectArtMethod)); |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1072 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1073 | // Set entry point to interpreter if in InterpretOnly mode. |
| 1074 | if (Runtime::Current()->GetInstrumentation()->InterpretOnly()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1075 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1076 | heap->VisitObjects(InitFromImageInterpretOnlyCallback, this); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 1077 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1078 | |
| 1079 | // reinit class_roots_ |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1080 | mirror::Class::SetClassClass(class_roots->Get(kJavaLangClass)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1081 | class_roots_ = class_roots.Get(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1082 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1083 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1084 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 1085 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1086 | // String class root was set above |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1087 | mirror::ArtField::SetClass(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1088 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 1089 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 1090 | mirror::CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 1091 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 1092 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 1093 | mirror::IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1094 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1095 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 1096 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
| 1097 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1098 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1099 | FinishInit(self); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1100 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1101 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1102 | } |
| 1103 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1104 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1105 | // reinit references to when reinitializing a ClassLinker from a |
| 1106 | // mapped image. |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1107 | void ClassLinker::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1108 | callback(reinterpret_cast<mirror::Object**>(&class_roots_), arg, 0, kRootVMInternal); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1109 | Thread* self = Thread::Current(); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1110 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1111 | ReaderMutexLock mu(self, dex_lock_); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1112 | if ((flags & kVisitRootFlagAllRoots) != 0) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1113 | for (mirror::DexCache*& dex_cache : dex_caches_) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1114 | callback(reinterpret_cast<mirror::Object**>(&dex_cache), arg, 0, kRootVMInternal); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1115 | } |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1116 | } else if ((flags & kVisitRootFlagNewRoots) != 0) { |
| 1117 | for (size_t index : new_dex_cache_roots_) { |
| 1118 | callback(reinterpret_cast<mirror::Object**>(&dex_caches_[index]), arg, 0, kRootVMInternal); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1119 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1120 | } |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1121 | if ((flags & kVisitRootFlagClearRootLog) != 0) { |
| 1122 | new_dex_cache_roots_.clear(); |
| 1123 | } |
| 1124 | if ((flags & kVisitRootFlagStartLoggingNewRoots) != 0) { |
| 1125 | log_new_dex_caches_roots_ = true; |
| 1126 | } else if ((flags & kVisitRootFlagStopLoggingNewRoots) != 0) { |
| 1127 | log_new_dex_caches_roots_ = false; |
| 1128 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1129 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1130 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1131 | WriterMutexLock mu(self, *Locks::classlinker_classes_lock_); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1132 | if ((flags & kVisitRootFlagAllRoots) != 0) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1133 | for (std::pair<const size_t, mirror::Class*>& it : class_table_) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1134 | callback(reinterpret_cast<mirror::Object**>(&it.second), arg, 0, kRootStickyClass); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1135 | } |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1136 | } else if ((flags & kVisitRootFlagNewRoots) != 0) { |
| 1137 | for (auto& pair : new_class_roots_) { |
| 1138 | mirror::Object* old_ref = pair.second; |
| 1139 | callback(reinterpret_cast<mirror::Object**>(&pair.second), arg, 0, kRootStickyClass); |
| 1140 | if (UNLIKELY(pair.second != old_ref)) { |
| 1141 | // Uh ohes, GC moved a root in the log. Need to search the class_table and update the |
| 1142 | // corresponding object. This is slow, but luckily for us, this may only happen with a |
| 1143 | // concurrent moving GC. |
| 1144 | for (auto it = class_table_.lower_bound(pair.first), end = class_table_.end(); |
| 1145 | it != end && it->first == pair.first; ++it) { |
| 1146 | // If the class stored matches the old class, update it to the new value. |
| 1147 | if (old_ref == it->second) { |
| 1148 | it->second = pair.second; |
| 1149 | } |
| 1150 | } |
| 1151 | } |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1152 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1153 | } |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 1154 | if ((flags & kVisitRootFlagClearRootLog) != 0) { |
| 1155 | new_class_roots_.clear(); |
| 1156 | } |
| 1157 | if ((flags & kVisitRootFlagStartLoggingNewRoots) != 0) { |
| 1158 | log_new_class_table_roots_ = true; |
| 1159 | } else if ((flags & kVisitRootFlagStopLoggingNewRoots) != 0) { |
| 1160 | log_new_class_table_roots_ = false; |
| 1161 | } |
Mathieu Chartier | 262e5ff | 2012-06-01 17:35:38 -0700 | [diff] [blame] | 1162 | // We deliberately ignore the class roots in the image since we |
| 1163 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1164 | } |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1165 | callback(reinterpret_cast<mirror::Object**>(&array_iftable_), arg, 0, kRootVMInternal); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1166 | DCHECK(array_iftable_ != nullptr); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1167 | for (size_t i = 0; i < kFindArrayCacheSize; ++i) { |
| 1168 | if (find_array_class_cache_[i] != nullptr) { |
| 1169 | callback(reinterpret_cast<mirror::Object**>(&find_array_class_cache_[i]), arg, 0, |
| 1170 | kRootVMInternal); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1171 | } |
| 1172 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1173 | } |
| 1174 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1175 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) { |
| 1176 | if (dex_cache_image_class_lookup_required_) { |
| 1177 | MoveImageClassesToClassTable(); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1178 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1179 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1180 | for (const std::pair<size_t, mirror::Class*>& it : class_table_) { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1181 | if (!visitor(it.second, arg)) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1182 | return; |
| 1183 | } |
| 1184 | } |
| 1185 | } |
| 1186 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1187 | static bool GetClassesVisitor(mirror::Class* c, void* arg) { |
| 1188 | std::set<mirror::Class*>* classes = reinterpret_cast<std::set<mirror::Class*>*>(arg); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1189 | classes->insert(c); |
| 1190 | return true; |
| 1191 | } |
| 1192 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1193 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1194 | std::set<mirror::Class*> classes; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1195 | VisitClasses(GetClassesVisitor, &classes); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1196 | for (mirror::Class* klass : classes) { |
| 1197 | if (!visitor(klass, arg)) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1198 | return; |
| 1199 | } |
| 1200 | } |
| 1201 | } |
| 1202 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1203 | ClassLinker::~ClassLinker() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1204 | mirror::Class::ResetClass(); |
| 1205 | mirror::String::ResetClass(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1206 | mirror::ArtField::ResetClass(); |
| 1207 | mirror::ArtMethod::ResetClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1208 | mirror::BooleanArray::ResetArrayClass(); |
| 1209 | mirror::ByteArray::ResetArrayClass(); |
| 1210 | mirror::CharArray::ResetArrayClass(); |
| 1211 | mirror::DoubleArray::ResetArrayClass(); |
| 1212 | mirror::FloatArray::ResetArrayClass(); |
| 1213 | mirror::IntArray::ResetArrayClass(); |
| 1214 | mirror::LongArray::ResetArrayClass(); |
| 1215 | mirror::ShortArray::ResetArrayClass(); |
| 1216 | mirror::Throwable::ResetClass(); |
| 1217 | mirror::StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1218 | STLDeleteElements(&boot_class_path_); |
| 1219 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1220 | } |
| 1221 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1222 | mirror::DexCache* ClassLinker::AllocDexCache(Thread* self, const DexFile& dex_file) { |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1223 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1224 | StackHandleScope<16> hs(self); |
| 1225 | Handle<mirror::Class> dex_cache_class(hs.NewHandle(GetClassRoot(kJavaLangDexCache))); |
| 1226 | Handle<mirror::DexCache> dex_cache( |
| 1227 | hs.NewHandle(down_cast<mirror::DexCache*>( |
| 1228 | heap->AllocObject<true>(self, dex_cache_class.Get(), dex_cache_class->GetObjectSize(), |
| 1229 | VoidFunctor())))); |
| 1230 | if (dex_cache.Get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1231 | return NULL; |
| 1232 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1233 | Handle<mirror::String> |
| 1234 | location(hs.NewHandle(intern_table_->InternStrong(dex_file.GetLocation().c_str()))); |
| 1235 | if (location.Get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1236 | return NULL; |
| 1237 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1238 | Handle<mirror::ObjectArray<mirror::String> > |
| 1239 | strings(hs.NewHandle(AllocStringArray(self, dex_file.NumStringIds()))); |
| 1240 | if (strings.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1241 | return NULL; |
| 1242 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1243 | Handle<mirror::ObjectArray<mirror::Class> > |
| 1244 | types(hs.NewHandle(AllocClassArray(self, dex_file.NumTypeIds()))); |
| 1245 | if (types.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1246 | return NULL; |
| 1247 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1248 | Handle<mirror::ObjectArray<mirror::ArtMethod> > |
| 1249 | methods(hs.NewHandle(AllocArtMethodArray(self, dex_file.NumMethodIds()))); |
| 1250 | if (methods.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1251 | return NULL; |
| 1252 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1253 | Handle<mirror::ObjectArray<mirror::ArtField> > |
| 1254 | fields(hs.NewHandle(AllocArtFieldArray(self, dex_file.NumFieldIds()))); |
| 1255 | if (fields.Get() == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1256 | return NULL; |
| 1257 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1258 | dex_cache->Init(&dex_file, location.Get(), strings.Get(), types.Get(), methods.Get(), |
| 1259 | fields.Get()); |
| 1260 | return dex_cache.Get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1261 | } |
| 1262 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1263 | // Used to initialize a class in the allocation code path to ensure it is guarded by a StoreStore |
| 1264 | // fence. |
| 1265 | class InitializeClassVisitor { |
| 1266 | public: |
| 1267 | explicit InitializeClassVisitor(uint32_t class_size) : class_size_(class_size) { |
| 1268 | } |
| 1269 | |
| 1270 | void operator()(mirror::Object* obj, size_t usable_size) const |
| 1271 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 1272 | DCHECK_LE(class_size_, usable_size); |
| 1273 | // Avoid AsClass as object is not yet in live bitmap or allocation stack. |
| 1274 | mirror::Class* klass = down_cast<mirror::Class*>(obj); |
| 1275 | // DCHECK(klass->IsClass()); |
| 1276 | klass->SetClassSize(class_size_); |
| 1277 | klass->SetPrimitiveType(Primitive::kPrimNot); // Default to not being primitive. |
| 1278 | klass->SetDexClassDefIndex(DexFile::kDexNoIndex16); // Default to no valid class def index. |
| 1279 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); // Default to no valid type index. |
| 1280 | } |
| 1281 | |
| 1282 | private: |
| 1283 | const uint32_t class_size_; |
| 1284 | |
| 1285 | DISALLOW_COPY_AND_ASSIGN(InitializeClassVisitor); |
| 1286 | }; |
| 1287 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1288 | mirror::Class* ClassLinker::AllocClass(Thread* self, mirror::Class* java_lang_Class, |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1289 | uint32_t class_size) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1290 | DCHECK_GE(class_size, sizeof(mirror::Class)); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1291 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1292 | InitializeClassVisitor visitor(class_size); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1293 | mirror::Object* k = |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1294 | kMovingClasses ? heap->AllocObject<true>(self, java_lang_Class, class_size, visitor) |
| 1295 | : heap->AllocNonMovableObject<true>(self, java_lang_Class, class_size, visitor); |
| 1296 | if (UNLIKELY(k == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1297 | CHECK(self->IsExceptionPending()); // OOME. |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1298 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1299 | } |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1300 | return k->AsClass(); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1301 | } |
| 1302 | |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1303 | mirror::Class* ClassLinker::AllocClass(Thread* self, uint32_t class_size) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1304 | return AllocClass(self, GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1305 | } |
| 1306 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1307 | mirror::ArtField* ClassLinker::AllocArtField(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1308 | return down_cast<mirror::ArtField*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1309 | GetClassRoot(kJavaLangReflectArtField)->AllocNonMovableObject(self)); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1310 | } |
| 1311 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1312 | mirror::ArtMethod* ClassLinker::AllocArtMethod(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1313 | return down_cast<mirror::ArtMethod*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1314 | GetClassRoot(kJavaLangReflectArtMethod)->AllocNonMovableObject(self)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1315 | } |
| 1316 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1317 | mirror::ObjectArray<mirror::StackTraceElement>* ClassLinker::AllocStackTraceElementArray( |
| 1318 | Thread* self, size_t length) { |
| 1319 | return mirror::ObjectArray<mirror::StackTraceElement>::Alloc( |
| 1320 | self, GetClassRoot(kJavaLangStackTraceElementArrayClass), length); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1321 | } |
| 1322 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1323 | static mirror::Class* EnsureResolved(Thread* self, mirror::Class* klass) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1324 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1325 | DCHECK(klass != NULL); |
| 1326 | // Wait for the class if it has not already been linked. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1327 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1328 | StackHandleScope<1> hs(self); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 1329 | HandleWrapper<mirror::Class> h_class(hs.NewHandleWrapper(&klass)); |
| 1330 | ObjectLock<mirror::Class> lock(self, h_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1331 | // Check for circular dependencies between classes. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1332 | if (!h_class->IsResolved() && h_class->GetClinitThreadId() == self->GetTid()) { |
| 1333 | ThrowClassCircularityError(h_class.Get()); |
| 1334 | h_class->SetStatus(mirror::Class::kStatusError, self); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1335 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1336 | } |
| 1337 | // Wait for the pending initialization to complete. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1338 | while (!h_class->IsResolved() && !h_class->IsErroneous()) { |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 1339 | lock.WaitIgnoringInterrupts(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1340 | } |
| 1341 | } |
| 1342 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1343 | ThrowEarlierClassFailure(klass); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1344 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1345 | } |
| 1346 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1347 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1348 | self->AssertNoPendingException(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1349 | return klass; |
| 1350 | } |
| 1351 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1352 | mirror::Class* ClassLinker::FindClass(Thread* self, const char* descriptor, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1353 | const Handle<mirror::ClassLoader>& class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1354 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1355 | DCHECK(self != nullptr); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1356 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1357 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1358 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1359 | // for primitive classes that aren't backed by dex files. |
| 1360 | return FindPrimitiveClass(descriptor[0]); |
| 1361 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1362 | // Find the class in the loaded classes table. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1363 | mirror::Class* klass = LookupClass(descriptor, class_loader.Get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1364 | if (klass != NULL) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1365 | return EnsureResolved(self, klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1366 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1367 | // Class is not yet loaded. |
| 1368 | if (descriptor[0] == '[') { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1369 | return CreateArrayClass(self, descriptor, class_loader); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1370 | } else if (class_loader.Get() == nullptr) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1371 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1372 | if (pair.second != NULL) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1373 | StackHandleScope<1> hs(self); |
| 1374 | auto class_loader = hs.NewHandle<mirror::ClassLoader>(nullptr); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1375 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1376 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1377 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1378 | // First try the boot class path, we check the descriptor first to avoid an unnecessary |
| 1379 | // throw of a NoClassDefFoundError. |
| 1380 | if (IsInBootClassPath(descriptor)) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1381 | mirror::Class* system_class = FindSystemClass(self, descriptor); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1382 | CHECK(system_class != NULL); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1383 | return system_class; |
| 1384 | } |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1385 | // Next try the compile time class path. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1386 | const std::vector<const DexFile*>* class_path; |
| 1387 | { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1388 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1389 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1390 | soa.AddLocalReference<jobject>(class_loader.Get())); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1391 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1392 | } |
| 1393 | |
| 1394 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1395 | if (pair.second != NULL) { |
| 1396 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1397 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1398 | |
| 1399 | } else { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1400 | ScopedObjectAccessUnchecked soa(self); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1401 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1402 | soa.AddLocalReference<jobject>(class_loader.Get())); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1403 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1404 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1405 | { |
| 1406 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1407 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1408 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1409 | if (class_name_object.get() == NULL) { |
| 1410 | return NULL; |
| 1411 | } |
| 1412 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1413 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1414 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1415 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1416 | } |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1417 | if (self->IsExceptionPending()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1418 | // If the ClassLoader threw, pass that exception up. |
| 1419 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1420 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1421 | // broken loader - throw NPE to be compatible with Dalvik |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1422 | ThrowNullPointerException(NULL, StringPrintf("ClassLoader.loadClass returned null for %s", |
| 1423 | class_name_string.c_str()).c_str()); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1424 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1425 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1426 | // success, return mirror::Class* |
| 1427 | return soa.Decode<mirror::Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1428 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1429 | } |
| 1430 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1431 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1432 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1433 | } |
| 1434 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1435 | mirror::Class* ClassLinker::DefineClass(const char* descriptor, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1436 | const Handle<mirror::ClassLoader>& class_loader, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1437 | const DexFile& dex_file, |
| 1438 | const DexFile::ClassDef& dex_class_def) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1439 | Thread* self = Thread::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1440 | StackHandleScope<2> hs(self); |
| 1441 | auto klass = hs.NewHandle<mirror::Class>(nullptr); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1442 | // Load the class from the dex file. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1443 | if (UNLIKELY(!init_done_)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1444 | // finish up init of hand crafted class_roots_ |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1445 | if (strcmp(descriptor, "Ljava/lang/Object;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1446 | klass.Assign(GetClassRoot(kJavaLangObject)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1447 | } else if (strcmp(descriptor, "Ljava/lang/Class;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1448 | klass.Assign(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1449 | } else if (strcmp(descriptor, "Ljava/lang/String;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1450 | klass.Assign(GetClassRoot(kJavaLangString)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1451 | } else if (strcmp(descriptor, "Ljava/lang/DexCache;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1452 | klass.Assign(GetClassRoot(kJavaLangDexCache)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1453 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtField;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1454 | klass.Assign(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1455 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtMethod;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1456 | klass.Assign(GetClassRoot(kJavaLangReflectArtMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1457 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1458 | klass.Assign(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1459 | } |
| 1460 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1461 | klass.Assign(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1462 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1463 | if (UNLIKELY(klass.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1464 | CHECK(self->IsExceptionPending()); // Expect an OOME. |
| 1465 | return NULL; |
| 1466 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1467 | klass->SetDexCache(FindDexCache(dex_file)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1468 | LoadClass(dex_file, dex_class_def, klass, class_loader.Get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1469 | // Check for a pending exception during load |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1470 | if (self->IsExceptionPending()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1471 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1472 | return NULL; |
| 1473 | } |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 1474 | ObjectLock<mirror::Class> lock(self, klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1475 | klass->SetClinitThreadId(self->GetTid()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1476 | // Add the newly loaded class to the loaded classes table. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1477 | mirror::Class* existing = InsertClass(descriptor, klass.Get(), Hash(descriptor)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1478 | if (existing != NULL) { |
| 1479 | // We failed to insert because we raced with another thread. Calling EnsureResolved may cause |
| 1480 | // this thread to block. |
| 1481 | return EnsureResolved(self, existing); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1482 | } |
| 1483 | // Finish loading (if necessary) by finding parents |
| 1484 | CHECK(!klass->IsLoaded()); |
| 1485 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1486 | // Loading failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1487 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1488 | return NULL; |
| 1489 | } |
| 1490 | CHECK(klass->IsLoaded()); |
| 1491 | // Link the class (if necessary) |
| 1492 | CHECK(!klass->IsResolved()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1493 | // TODO: Use fast jobjects? |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1494 | auto interfaces = hs.NewHandle<mirror::ObjectArray<mirror::Class>>(nullptr); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1495 | if (!LinkClass(self, klass, interfaces)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1496 | // Linking failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1497 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1498 | return NULL; |
| 1499 | } |
| 1500 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1501 | |
| 1502 | /* |
| 1503 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1504 | * definition of "preparation" is creating the static fields for a |
| 1505 | * class and initializing them to the standard default values, but not |
| 1506 | * executing any code (that comes later, during "initialization"). |
| 1507 | * |
| 1508 | * We did the static preparation in LinkClass. |
| 1509 | * |
| 1510 | * The class has been prepared and resolved but possibly not yet verified |
| 1511 | * at this point. |
| 1512 | */ |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1513 | Dbg::PostClassPrepare(klass.Get()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1514 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1515 | return klass.Get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1516 | } |
| 1517 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1518 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1519 | uint32_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1520 | const DexFile::ClassDef& dex_class_def) { |
| 1521 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1522 | size_t num_ref = 0; |
| 1523 | size_t num_32 = 0; |
| 1524 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1525 | if (class_data != NULL) { |
| 1526 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1527 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1528 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1529 | char c = descriptor[0]; |
| 1530 | if (c == 'L' || c == '[') { |
| 1531 | num_ref++; |
| 1532 | } else if (c == 'J' || c == 'D') { |
| 1533 | num_64++; |
| 1534 | } else { |
| 1535 | num_32++; |
| 1536 | } |
| 1537 | } |
| 1538 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1539 | // start with generic class data |
Ian Rogers | 6fac447 | 2014-02-25 17:01:10 -0800 | [diff] [blame] | 1540 | uint32_t size = sizeof(mirror::Class); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1541 | // follow with reference fields which must be contiguous at start |
| 1542 | size += (num_ref * sizeof(uint32_t)); |
| 1543 | // if there are 64-bit fields to add, make sure they are aligned |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 1544 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1545 | if (num_32 != 0) { |
| 1546 | // use an available 32-bit field for padding |
| 1547 | num_32--; |
| 1548 | } |
| 1549 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1550 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1551 | } |
| 1552 | // tack on any 64-bit fields now that alignment is assured |
| 1553 | size += (num_64 * sizeof(uint64_t)); |
| 1554 | // tack on any remaining 32-bit fields |
| 1555 | size += (num_32 * sizeof(uint32_t)); |
| 1556 | return size; |
| 1557 | } |
| 1558 | |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1559 | 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] | 1560 | DCHECK_NE(class_def_idx, DexFile::kDexNoIndex16); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1561 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1562 | CHECK(oat_file != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 1563 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1564 | 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] | 1565 | &dex_location_checksum); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1566 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation(); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1567 | return oat_dex_file->GetOatClass(class_def_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1568 | } |
| 1569 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1570 | static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, uint16_t class_def_idx, |
| 1571 | uint32_t method_idx) { |
| 1572 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_idx); |
| 1573 | const byte* class_data = dex_file.GetClassData(class_def); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1574 | CHECK(class_data != NULL); |
| 1575 | ClassDataItemIterator it(dex_file, class_data); |
| 1576 | // Skip fields |
| 1577 | while (it.HasNextStaticField()) { |
| 1578 | it.Next(); |
| 1579 | } |
| 1580 | while (it.HasNextInstanceField()) { |
| 1581 | it.Next(); |
| 1582 | } |
| 1583 | // Process methods |
| 1584 | size_t class_def_method_index = 0; |
| 1585 | while (it.HasNextDirectMethod()) { |
| 1586 | if (it.GetMemberIndex() == method_idx) { |
| 1587 | return class_def_method_index; |
| 1588 | } |
| 1589 | class_def_method_index++; |
| 1590 | it.Next(); |
| 1591 | } |
| 1592 | while (it.HasNextVirtualMethod()) { |
| 1593 | if (it.GetMemberIndex() == method_idx) { |
| 1594 | return class_def_method_index; |
| 1595 | } |
| 1596 | class_def_method_index++; |
| 1597 | it.Next(); |
| 1598 | } |
| 1599 | DCHECK(!it.HasNext()); |
| 1600 | LOG(FATAL) << "Failed to find method index " << method_idx << " in " << dex_file.GetLocation(); |
| 1601 | return 0; |
| 1602 | } |
| 1603 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1604 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(mirror::ArtMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1605 | // 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] | 1606 | // method for direct methods (or virtual methods made direct). |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1607 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1608 | size_t oat_method_index; |
| 1609 | if (method->IsStatic() || method->IsDirect()) { |
| 1610 | // Simple case where the oat method index was stashed at load time. |
| 1611 | oat_method_index = method->GetMethodIndex(); |
| 1612 | } else { |
| 1613 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1614 | // by search for its position in the declared virtual methods. |
| 1615 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1616 | size_t end = declaring_class->NumVirtualMethods(); |
| 1617 | bool found = false; |
| 1618 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1619 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1620 | found = true; |
| 1621 | break; |
| 1622 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1623 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1624 | } |
| 1625 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1626 | } |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1627 | DCHECK_EQ(oat_method_index, |
| 1628 | GetOatMethodIndexFromMethodIndex(*declaring_class->GetDexCache()->GetDexFile(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1629 | method->GetDeclaringClass()->GetDexClassDefIndex(), |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1630 | method->GetDexMethodIndex())); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1631 | const OatFile::OatClass oat_class = GetOatClass(*declaring_class->GetDexCache()->GetDexFile(), |
| 1632 | declaring_class->GetDexClassDefIndex()); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1633 | |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1634 | return oat_class.GetOatMethod(oat_method_index); |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1635 | } |
| 1636 | |
| 1637 | // Special case to get oat code without overwriting a trampoline. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1638 | const void* ClassLinker::GetQuickOatCodeFor(mirror::ArtMethod* method) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1639 | CHECK(!method->IsAbstract()) << PrettyMethod(method); |
Jeff Hao | 8df6cea | 2013-07-29 13:54:48 -0700 | [diff] [blame] | 1640 | if (method->IsProxyMethod()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1641 | return GetQuickProxyInvokeHandler(); |
Jeff Hao | 8df6cea | 2013-07-29 13:54:48 -0700 | [diff] [blame] | 1642 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1643 | const void* result = GetOatMethodFor(method).GetQuickCode(); |
| 1644 | if (result == nullptr) { |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1645 | if (method->IsNative()) { |
| 1646 | // No code and native? Use generic trampoline. |
| 1647 | result = GetQuickGenericJniTrampoline(); |
| 1648 | } else if (method->IsPortableCompiled()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1649 | // No code? Do we expect portable code? |
| 1650 | result = GetQuickToPortableBridge(); |
| 1651 | } else { |
| 1652 | // No code? You must mean to go into the interpreter. |
| 1653 | result = GetQuickToInterpreterBridge(); |
| 1654 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1655 | } |
| 1656 | return result; |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1657 | } |
| 1658 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1659 | const void* ClassLinker::GetPortableOatCodeFor(mirror::ArtMethod* method, |
| 1660 | bool* have_portable_code) { |
| 1661 | CHECK(!method->IsAbstract()) << PrettyMethod(method); |
| 1662 | *have_portable_code = false; |
| 1663 | if (method->IsProxyMethod()) { |
| 1664 | return GetPortableProxyInvokeHandler(); |
| 1665 | } |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 1666 | const OatFile::OatMethod oat_method = GetOatMethodFor(method); |
| 1667 | const void* result = oat_method.GetPortableCode(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1668 | if (result == nullptr) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 1669 | if (oat_method.GetQuickCode() == nullptr) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1670 | // No code? You must mean to go into the interpreter. |
| 1671 | result = GetPortableToInterpreterBridge(); |
| 1672 | } else { |
| 1673 | // No code? But there's quick code, so use a bridge. |
| 1674 | result = GetPortableToQuickBridge(); |
| 1675 | } |
| 1676 | } else { |
| 1677 | *have_portable_code = true; |
| 1678 | } |
| 1679 | return result; |
| 1680 | } |
| 1681 | |
| 1682 | const void* ClassLinker::GetQuickOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx, |
| 1683 | uint32_t method_idx) { |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1684 | const OatFile::OatClass oat_class = GetOatClass(dex_file, class_def_idx); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1685 | 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] | 1686 | return oat_class.GetOatMethod(oat_method_idx).GetQuickCode(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1687 | } |
| 1688 | |
| 1689 | const void* ClassLinker::GetPortableOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx, |
| 1690 | uint32_t method_idx) { |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1691 | const OatFile::OatClass oat_class = GetOatClass(dex_file, class_def_idx); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1692 | 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] | 1693 | return oat_class.GetOatMethod(oat_method_idx).GetPortableCode(); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1694 | } |
| 1695 | |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1696 | // Returns true if the method must run with interpreter, false otherwise. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1697 | static bool NeedsInterpreter(mirror::ArtMethod* method, const void* quick_code, |
| 1698 | const void* portable_code) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 1699 | if ((quick_code == nullptr) && (portable_code == nullptr)) { |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1700 | // No code: need interpreter. |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1701 | // May return true for native code, in the case of generic JNI |
| 1702 | // DCHECK(!method->IsNative()); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1703 | return true; |
| 1704 | } |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 1705 | #ifdef ART_SEA_IR_MODE |
| 1706 | ScopedObjectAccess soa(Thread::Current()); |
| 1707 | if (std::string::npos != PrettyMethod(method).find("fibonacci")) { |
| 1708 | LOG(INFO) << "Found " << PrettyMethod(method); |
| 1709 | return false; |
| 1710 | } |
| 1711 | #endif |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1712 | // If interpreter mode is enabled, every method (except native and proxy) must |
| 1713 | // be run with interpreter. |
| 1714 | return Runtime::Current()->GetInstrumentation()->InterpretOnly() && |
| 1715 | !method->IsNative() && !method->IsProxyMethod(); |
| 1716 | } |
| 1717 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1718 | void ClassLinker::FixupStaticTrampolines(mirror::Class* klass) { |
Brian Carlstrom | 073278c | 2014-02-19 15:21:21 -0800 | [diff] [blame] | 1719 | DCHECK(klass->IsInitialized()) << PrettyDescriptor(klass); |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1720 | if (klass->NumDirectMethods() == 0) { |
| 1721 | return; // No direct methods => no static methods. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1722 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1723 | Runtime* runtime = Runtime::Current(); |
| 1724 | if (!runtime->IsStarted() || runtime->UseCompileTimeClassPath()) { |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1725 | return; // OAT file unavailable. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1726 | } |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1727 | ClassHelper kh(klass); |
| 1728 | const DexFile& dex_file = kh.GetDexFile(); |
| 1729 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 1730 | CHECK(dex_class_def != nullptr); |
| 1731 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1732 | // There should always be class data if there were direct methods. |
| 1733 | CHECK(class_data != nullptr) << PrettyDescriptor(klass); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1734 | const OatFile::OatClass oat_class = GetOatClass(dex_file, klass->GetDexClassDefIndex()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1735 | ClassDataItemIterator it(dex_file, class_data); |
| 1736 | // Skip fields |
| 1737 | while (it.HasNextStaticField()) { |
| 1738 | it.Next(); |
| 1739 | } |
| 1740 | while (it.HasNextInstanceField()) { |
| 1741 | it.Next(); |
| 1742 | } |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1743 | // Link the code of methods skipped by LinkCode. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1744 | for (size_t method_index = 0; it.HasNextDirectMethod(); ++method_index, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1745 | mirror::ArtMethod* method = klass->GetDirectMethod(method_index); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1746 | if (!method->IsStatic()) { |
| 1747 | // Only update static methods. |
| 1748 | continue; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1749 | } |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1750 | const void* portable_code = oat_class.GetOatMethod(method_index).GetPortableCode(); |
| 1751 | const void* quick_code = oat_class.GetOatMethod(method_index).GetQuickCode(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1752 | const bool enter_interpreter = NeedsInterpreter(method, quick_code, portable_code); |
| 1753 | bool have_portable_code = false; |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1754 | if (enter_interpreter) { |
| 1755 | // Use interpreter entry point. |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1756 | // 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] | 1757 | if (quick_code == nullptr && portable_code == nullptr && method->IsNative()) { |
| 1758 | quick_code = GetQuickGenericJniTrampoline(); |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1759 | portable_code = GetPortableToQuickBridge(); |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1760 | } else { |
Ian Rogers | 1a57066 | 2014-03-12 01:02:21 -0700 | [diff] [blame] | 1761 | portable_code = GetPortableToInterpreterBridge(); |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 1762 | quick_code = GetQuickToInterpreterBridge(); |
| 1763 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1764 | } else { |
| 1765 | if (portable_code == nullptr) { |
| 1766 | portable_code = GetPortableToQuickBridge(); |
| 1767 | } else { |
| 1768 | have_portable_code = true; |
| 1769 | } |
| 1770 | if (quick_code == nullptr) { |
| 1771 | quick_code = GetQuickToPortableBridge(); |
| 1772 | } |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1773 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1774 | runtime->GetInstrumentation()->UpdateMethodsCode(method, quick_code, portable_code, |
| 1775 | have_portable_code); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1776 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1777 | // Ignore virtual methods on the iterator. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1778 | } |
| 1779 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1780 | static void LinkCode(const Handle<mirror::ArtMethod>& method, const OatFile::OatClass* oat_class, |
Andreas Gampe | 9054683 | 2014-03-12 18:07:19 -0700 | [diff] [blame] | 1781 | const DexFile& dex_file, uint32_t dex_method_index, uint32_t method_index) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1782 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1783 | // Method shouldn't have already been linked. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1784 | DCHECK(method->GetEntryPointFromQuickCompiledCode() == nullptr); |
| 1785 | DCHECK(method->GetEntryPointFromPortableCompiledCode() == nullptr); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1786 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1787 | // non-abstract methods also get their code pointers. |
| 1788 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1789 | oat_method.LinkMethod(method.Get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1790 | |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1791 | // Install entry point from interpreter. |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 1792 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1793 | bool enter_interpreter = NeedsInterpreter(method.Get(), |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1794 | method->GetEntryPointFromQuickCompiledCode(), |
| 1795 | method->GetEntryPointFromPortableCompiledCode()); |
Andreas Gampe | bf6b92a | 2014-03-05 16:11:04 -0800 | [diff] [blame] | 1796 | if (enter_interpreter && !method->IsNative()) { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1797 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1798 | } else { |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 1799 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1800 | } |
| 1801 | |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1802 | if (method->IsAbstract()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1803 | method->SetEntryPointFromQuickCompiledCode(GetQuickToInterpreterBridge()); |
| 1804 | method->SetEntryPointFromPortableCompiledCode(GetPortableToInterpreterBridge()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1805 | return; |
| 1806 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1807 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1808 | bool have_portable_code = false; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1809 | if (method->IsStatic() && !method->IsConstructor()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1810 | // For static methods excluding the class initializer, install the trampoline. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1811 | // It will be replaced by the proper entry point by ClassLinker::FixupStaticTrampolines |
| 1812 | // after initializing class (see ClassLinker::InitializeClass method). |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1813 | method->SetEntryPointFromQuickCompiledCode(GetQuickResolutionTrampoline(runtime->GetClassLinker())); |
| 1814 | method->SetEntryPointFromPortableCompiledCode(GetPortableResolutionTrampoline(runtime->GetClassLinker())); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1815 | } else if (enter_interpreter) { |
Andreas Gampe | bf6b92a | 2014-03-05 16:11:04 -0800 | [diff] [blame] | 1816 | if (!method->IsNative()) { |
| 1817 | // Set entry point from compiled code if there's no code or in interpreter only mode. |
| 1818 | method->SetEntryPointFromQuickCompiledCode(GetQuickToInterpreterBridge()); |
| 1819 | method->SetEntryPointFromPortableCompiledCode(GetPortableToInterpreterBridge()); |
| 1820 | } else { |
| 1821 | method->SetEntryPointFromQuickCompiledCode(GetQuickGenericJniTrampoline()); |
| 1822 | method->SetEntryPointFromPortableCompiledCode(GetPortableToQuickBridge()); |
| 1823 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1824 | } else if (method->GetEntryPointFromPortableCompiledCode() != nullptr) { |
| 1825 | DCHECK(method->GetEntryPointFromQuickCompiledCode() == nullptr); |
| 1826 | have_portable_code = true; |
| 1827 | method->SetEntryPointFromQuickCompiledCode(GetQuickToPortableBridge()); |
| 1828 | } else { |
| 1829 | DCHECK(method->GetEntryPointFromQuickCompiledCode() != nullptr); |
| 1830 | method->SetEntryPointFromPortableCompiledCode(GetPortableToQuickBridge()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 1831 | } |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1832 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1833 | if (method->IsNative()) { |
| 1834 | // Unregistering restores the dlsym lookup stub. |
| 1835 | method->UnregisterNative(Thread::Current()); |
Andreas Gampe | 9054683 | 2014-03-12 18:07:19 -0700 | [diff] [blame] | 1836 | |
| 1837 | if (enter_interpreter) { |
| 1838 | // We have a native method here without code. Then it should have either the GenericJni |
| 1839 | // trampoline as entrypoint (non-static), or the Resolution trampoline (static). |
| 1840 | DCHECK(method->GetEntryPointFromQuickCompiledCode() == |
| 1841 | GetQuickResolutionTrampoline(runtime->GetClassLinker()) |
Andreas Gampe | 9a6a99a | 2014-03-14 07:52:20 -0700 | [diff] [blame] | 1842 | || method->GetEntryPointFromQuickCompiledCode() == GetQuickGenericJniTrampoline()); |
Andreas Gampe | 9054683 | 2014-03-12 18:07:19 -0700 | [diff] [blame] | 1843 | } |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1844 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1845 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1846 | // Allow instrumentation its chance to hijack code. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1847 | runtime->GetInstrumentation()->UpdateMethodsCode(method.Get(), |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1848 | method->GetEntryPointFromQuickCompiledCode(), |
| 1849 | method->GetEntryPointFromPortableCompiledCode(), |
| 1850 | have_portable_code); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1851 | } |
| 1852 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1853 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1854 | const DexFile::ClassDef& dex_class_def, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1855 | const Handle<mirror::Class>& klass, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1856 | mirror::ClassLoader* class_loader) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1857 | CHECK(klass.Get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1858 | CHECK(klass->GetDexCache() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1859 | CHECK_EQ(mirror::Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1860 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1861 | CHECK(descriptor != NULL); |
| 1862 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1863 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Hiroshi Yamauchi | 624468c | 2014-03-31 15:14:47 -0700 | [diff] [blame] | 1864 | if (kUseBakerOrBrooksReadBarrier) { |
| 1865 | klass->AssertReadBarrierPointer(); |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 1866 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1867 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1868 | // Make sure that none of our runtime-only flags are set. |
Brian Carlstrom | 8e3fb14 | 2013-10-09 21:00:27 -0700 | [diff] [blame] | 1869 | CHECK_EQ(access_flags & ~kAccJavaFlagsMask, 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1870 | klass->SetAccessFlags(access_flags); |
| 1871 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1872 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1873 | klass->SetStatus(mirror::Class::kStatusIdx, NULL); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1874 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1875 | klass->SetDexClassDefIndex(dex_file.GetIndexForClassDef(dex_class_def)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1876 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1877 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1878 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1879 | if (class_data == NULL) { |
| 1880 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1881 | } |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1882 | |
| 1883 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
| 1884 | const OatFile::OatClass oat_class = GetOatClass(dex_file, klass->GetDexClassDefIndex()); |
| 1885 | LoadClassMembers(dex_file, class_data, klass, class_loader, &oat_class); |
| 1886 | } else { |
| 1887 | LoadClassMembers(dex_file, class_data, klass, class_loader, nullptr); |
| 1888 | } |
| 1889 | } |
| 1890 | |
| 1891 | void ClassLinker::LoadClassMembers(const DexFile& dex_file, |
| 1892 | const byte* class_data, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1893 | const Handle<mirror::Class>& klass, |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1894 | mirror::ClassLoader* class_loader, |
| 1895 | const OatFile::OatClass* oat_class) { |
| 1896 | // Load fields. |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1897 | ClassDataItemIterator it(dex_file, class_data); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1898 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1899 | if (it.NumStaticFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1900 | mirror::ObjectArray<mirror::ArtField>* statics = AllocArtFieldArray(self, it.NumStaticFields()); |
| 1901 | if (UNLIKELY(statics == NULL)) { |
| 1902 | CHECK(self->IsExceptionPending()); // OOME. |
| 1903 | return; |
| 1904 | } |
| 1905 | klass->SetSFields(statics); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1906 | } |
| 1907 | if (it.NumInstanceFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1908 | mirror::ObjectArray<mirror::ArtField>* fields = |
| 1909 | AllocArtFieldArray(self, it.NumInstanceFields()); |
| 1910 | if (UNLIKELY(fields == NULL)) { |
| 1911 | CHECK(self->IsExceptionPending()); // OOME. |
| 1912 | return; |
| 1913 | } |
| 1914 | klass->SetIFields(fields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1915 | } |
| 1916 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1917 | StackHandleScope<1> hs(self); |
| 1918 | Handle<mirror::ArtField> sfield(hs.NewHandle(AllocArtField(self))); |
| 1919 | if (UNLIKELY(sfield.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1920 | CHECK(self->IsExceptionPending()); // OOME. |
| 1921 | return; |
| 1922 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1923 | klass->SetStaticField(i, sfield.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1924 | LoadField(dex_file, it, klass, sfield); |
| 1925 | } |
| 1926 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1927 | StackHandleScope<1> hs(self); |
| 1928 | Handle<mirror::ArtField> ifield(hs.NewHandle(AllocArtField(self))); |
| 1929 | if (UNLIKELY(ifield.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1930 | CHECK(self->IsExceptionPending()); // OOME. |
| 1931 | return; |
| 1932 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1933 | klass->SetInstanceField(i, ifield.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1934 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1935 | } |
| 1936 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1937 | // Load methods. |
| 1938 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1939 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1940 | mirror::ObjectArray<mirror::ArtMethod>* directs = |
| 1941 | AllocArtMethodArray(self, it.NumDirectMethods()); |
| 1942 | if (UNLIKELY(directs == NULL)) { |
| 1943 | CHECK(self->IsExceptionPending()); // OOME. |
| 1944 | return; |
| 1945 | } |
| 1946 | klass->SetDirectMethods(directs); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1947 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1948 | if (it.NumVirtualMethods() != 0) { |
| 1949 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1950 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = |
| 1951 | AllocArtMethodArray(self, it.NumVirtualMethods()); |
| 1952 | if (UNLIKELY(virtuals == NULL)) { |
| 1953 | CHECK(self->IsExceptionPending()); // OOME. |
| 1954 | return; |
| 1955 | } |
| 1956 | klass->SetVirtualMethods(virtuals); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1957 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1958 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1959 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1960 | StackHandleScope<1> hs(self); |
| 1961 | Handle<mirror::ArtMethod> method(hs.NewHandle(LoadMethod(self, dex_file, it, klass))); |
| 1962 | if (UNLIKELY(method.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1963 | CHECK(self->IsExceptionPending()); // OOME. |
| 1964 | return; |
| 1965 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1966 | klass->SetDirectMethod(i, method.Get()); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1967 | if (oat_class != nullptr) { |
| 1968 | LinkCode(method, oat_class, dex_file, it.GetMemberIndex(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1969 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1970 | method->SetMethodIndex(class_def_method_index); |
| 1971 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1972 | } |
| 1973 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1974 | StackHandleScope<1> hs(self); |
| 1975 | Handle<mirror::ArtMethod> method(hs.NewHandle(LoadMethod(self, dex_file, it, klass))); |
| 1976 | if (UNLIKELY(method.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1977 | CHECK(self->IsExceptionPending()); // OOME. |
| 1978 | return; |
| 1979 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1980 | klass->SetVirtualMethod(i, method.Get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1981 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 1982 | if (oat_class != nullptr) { |
| 1983 | LinkCode(method, oat_class, dex_file, it.GetMemberIndex(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1984 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1985 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1986 | } |
| 1987 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1988 | } |
| 1989 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1990 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1991 | const Handle<mirror::Class>& klass, |
| 1992 | const Handle<mirror::ArtField>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1993 | uint32_t field_idx = it.GetMemberIndex(); |
| 1994 | dst->SetDexFieldIndex(field_idx); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1995 | dst->SetDeclaringClass(klass.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1996 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1997 | } |
| 1998 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1999 | mirror::ArtMethod* ClassLinker::LoadMethod(Thread* self, const DexFile& dex_file, |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2000 | const ClassDataItemIterator& it, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2001 | const Handle<mirror::Class>& klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2002 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2003 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2004 | const char* method_name = dex_file.StringDataByIdx(method_id.name_idx_); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2005 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2006 | mirror::ArtMethod* dst = AllocArtMethod(self); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2007 | if (UNLIKELY(dst == NULL)) { |
| 2008 | CHECK(self->IsExceptionPending()); // OOME. |
| 2009 | return NULL; |
| 2010 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2011 | DCHECK(dst->IsArtMethod()) << PrettyDescriptor(dst->GetClass()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2012 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2013 | const char* old_cause = self->StartAssertNoThreadSuspension("LoadMethod"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2014 | dst->SetDexMethodIndex(dex_method_idx); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2015 | dst->SetDeclaringClass(klass.Get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2016 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2017 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2018 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2019 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2020 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2021 | |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2022 | uint32_t access_flags = it.GetMemberAccessFlags(); |
| 2023 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2024 | if (UNLIKELY(strcmp("finalize", method_name) == 0)) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2025 | // Set finalizable flag on declaring class. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2026 | if (strcmp("V", dex_file.GetShorty(method_id.proto_idx_)) == 0) { |
| 2027 | // Void return type. |
| 2028 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 2029 | klass->SetFinalizable(); |
| 2030 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2031 | ClassHelper kh(klass.Get()); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2032 | const char* klass_descriptor = kh.GetDescriptor(); |
| 2033 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 2034 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 2035 | // subclasses, so we exclude it here. |
| 2036 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 2037 | // empty. |
| 2038 | if ((strcmp("Ljava/lang/Object;", klass_descriptor) != 0) && |
| 2039 | (strcmp("Ljava/lang/Enum;", klass_descriptor) != 0)) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2040 | klass->SetFinalizable(); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2041 | } |
| 2042 | } |
| 2043 | } |
| 2044 | } else if (method_name[0] == '<') { |
| 2045 | // Fix broken access flags for initializers. Bug 11157540. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2046 | bool is_init = (strcmp("<init>", method_name) == 0); |
| 2047 | bool is_clinit = !is_init && (strcmp("<clinit>", method_name) == 0); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2048 | if (UNLIKELY(!is_init && !is_clinit)) { |
| 2049 | LOG(WARNING) << "Unexpected '<' at start of method name " << method_name; |
| 2050 | } else { |
| 2051 | if (UNLIKELY((access_flags & kAccConstructor) == 0)) { |
| 2052 | 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] | 2053 | << PrettyDescriptor(klass.Get()) << " in dex file " << dex_file.GetLocation(); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 2054 | access_flags |= kAccConstructor; |
| 2055 | } |
| 2056 | } |
| 2057 | } |
| 2058 | dst->SetAccessFlags(access_flags); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2059 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2060 | self->EndAssertNoThreadSuspension(old_cause); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2061 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 2062 | } |
| 2063 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 2064 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2065 | Thread* self = Thread::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2066 | StackHandleScope<1> hs(self); |
| 2067 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(AllocDexCache(self, dex_file))); |
| 2068 | 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] | 2069 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 2070 | } |
| 2071 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2072 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2073 | const Handle<mirror::DexCache>& dex_cache) { |
| 2074 | CHECK(dex_cache.Get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 2075 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 2076 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2077 | } |
| 2078 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2079 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2080 | dex_lock_.AssertSharedHeld(Thread::Current()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2081 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2082 | if (dex_caches_[i]->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2083 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2084 | } |
| 2085 | } |
| 2086 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 2087 | } |
| 2088 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2089 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2090 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 2091 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2092 | } |
| 2093 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2094 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2095 | const Handle<mirror::DexCache>& dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2096 | dex_lock_.AssertExclusiveHeld(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2097 | CHECK(dex_cache.Get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 2098 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())) |
| 2099 | << dex_cache->GetLocation()->ToModifiedUtf8() << " " << dex_file.GetLocation(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2100 | dex_caches_.push_back(dex_cache.Get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2101 | dex_cache->SetDexFile(&dex_file); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 2102 | if (log_new_dex_caches_roots_) { |
| 2103 | // TODO: This is not safe if we can remove dex caches. |
| 2104 | new_dex_cache_roots_.push_back(dex_caches_.size() - 1); |
| 2105 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2106 | } |
| 2107 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2108 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2109 | Thread* self = Thread::Current(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2110 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2111 | ReaderMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2112 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 2113 | return; |
| 2114 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2115 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2116 | // Don't alloc while holding the lock, since allocation may need to |
| 2117 | // suspend all threads and another thread may need the dex_lock_ to |
| 2118 | // get to a suspend point. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2119 | StackHandleScope<1> hs(self); |
| 2120 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(AllocDexCache(self, dex_file))); |
| 2121 | 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] | 2122 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2123 | WriterMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2124 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 2125 | return; |
| 2126 | } |
| 2127 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2128 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2129 | } |
| 2130 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2131 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2132 | const Handle<mirror::DexCache>& dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2133 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2134 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2135 | } |
| 2136 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2137 | mirror::DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2138 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2139 | // Search assuming unique-ness of dex file. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2140 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2141 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2142 | if (dex_cache->GetDexFile() == &dex_file) { |
| 2143 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2144 | } |
| 2145 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2146 | // Search matching by location name. |
| 2147 | std::string location(dex_file.GetLocation()); |
| 2148 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2149 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2150 | if (dex_cache->GetDexFile()->GetLocation() == location) { |
| 2151 | return dex_cache; |
| 2152 | } |
| 2153 | } |
| 2154 | // Failure, dump diagnostic and abort. |
| 2155 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2156 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2157 | LOG(ERROR) << "Registered dex file " << i << " = " << dex_cache->GetDexFile()->GetLocation(); |
| 2158 | } |
| 2159 | LOG(FATAL) << "Failed to find DexCache for DexFile " << location; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2160 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2161 | } |
| 2162 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2163 | void ClassLinker::FixupDexCaches(mirror::ArtMethod* resolution_method) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2164 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2165 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2166 | dex_caches_[i]->Fixup(resolution_method); |
| 2167 | } |
| 2168 | } |
| 2169 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2170 | mirror::Class* ClassLinker::CreatePrimitiveClass(Thread* self, Primitive::Type type) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2171 | mirror::Class* klass = AllocClass(self, sizeof(mirror::Class)); |
| 2172 | if (UNLIKELY(klass == NULL)) { |
| 2173 | return NULL; |
| 2174 | } |
| 2175 | return InitializePrimitiveClass(klass, type); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2176 | } |
| 2177 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2178 | mirror::Class* ClassLinker::InitializePrimitiveClass(mirror::Class* primitive_class, |
| 2179 | Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2180 | CHECK(primitive_class != NULL); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2181 | // Must hold lock on object when initializing. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2182 | Thread* self = Thread::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2183 | StackHandleScope<1> hs(self); |
| 2184 | Handle<mirror::Class> h_class(hs.NewHandle(primitive_class)); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2185 | ObjectLock<mirror::Class> lock(self, h_class); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2186 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2187 | primitive_class->SetPrimitiveType(type); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2188 | primitive_class->SetStatus(mirror::Class::kStatusInitialized, self); |
| 2189 | const char* descriptor = Primitive::Descriptor(type); |
| 2190 | mirror::Class* existing = InsertClass(descriptor, primitive_class, Hash(descriptor)); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2191 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2192 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 2193 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2194 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2195 | // Create an array class (i.e. the class object for the array, not the |
| 2196 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 2197 | // "[Ljava/lang/String;". |
| 2198 | // |
| 2199 | // If "descriptor" refers to an array of primitives, look up the |
| 2200 | // primitive type's internally-generated class object. |
| 2201 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2202 | // "class_loader" is the class loader of the class that's referring to |
| 2203 | // us. It's used to ensure that we're looking for the element type in |
| 2204 | // the right context. It does NOT become the class loader for the |
| 2205 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2206 | // |
| 2207 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 2208 | mirror::Class* ClassLinker::CreateArrayClass(Thread* self, const char* descriptor, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2209 | const Handle<mirror::ClassLoader>& class_loader) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2210 | // Identify the underlying component type |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2211 | CHECK_EQ('[', descriptor[0]); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2212 | StackHandleScope<2> hs(self); |
| 2213 | Handle<mirror::Class> component_type(hs.NewHandle(FindClass(self, descriptor + 1, class_loader))); |
| 2214 | if (component_type.Get() == nullptr) { |
Mathieu Chartier | c0a9ea4 | 2014-02-03 16:36:49 -0800 | [diff] [blame] | 2215 | DCHECK(self->IsExceptionPending()); |
| 2216 | return nullptr; |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2217 | } |
Ian Rogers | 2d10b20 | 2014-05-12 19:15:18 -0700 | [diff] [blame] | 2218 | if (UNLIKELY(component_type->IsPrimitiveVoid())) { |
| 2219 | ThrowNoClassDefFoundError("Attempt to create array of void primitive type"); |
| 2220 | return nullptr; |
| 2221 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2222 | // See if the component type is already loaded. Array classes are |
| 2223 | // always associated with the class loader of their underlying |
| 2224 | // element type -- an array of Strings goes with the loader for |
| 2225 | // java/lang/String -- so we need to look for it there. (The |
| 2226 | // caller should have checked for the existence of the class |
| 2227 | // before calling here, but they did so with *their* class loader, |
| 2228 | // not the component type's loader.) |
| 2229 | // |
| 2230 | // If we find it, the caller adds "loader" to the class' initiating |
| 2231 | // loader list, which should prevent us from going through this again. |
| 2232 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2233 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2234 | // are the same, because our caller (FindClass) just did the |
| 2235 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 2236 | // because we effectively do this lookup again when we add the new |
| 2237 | // class to the hash table --- necessary because of possible races with |
| 2238 | // other threads.) |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2239 | if (class_loader.Get() != component_type->GetClassLoader()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2240 | mirror::Class* new_class = LookupClass(descriptor, component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2241 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2242 | return new_class; |
| 2243 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2244 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2245 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2246 | // Fill out the fields in the Class. |
| 2247 | // |
| 2248 | // It is possible to execute some methods against arrays, because |
| 2249 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 2250 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 2251 | // |
| 2252 | // Array classes are simple enough that we don't need to do a full |
| 2253 | // link step. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2254 | auto new_class = hs.NewHandle<mirror::Class>(nullptr); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2255 | if (UNLIKELY(!init_done_)) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2256 | // Classes that were hand created, ie not by FindSystemClass |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2257 | if (strcmp(descriptor, "[Ljava/lang/Class;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2258 | new_class.Assign(GetClassRoot(kClassArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2259 | } else if (strcmp(descriptor, "[Ljava/lang/Object;") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2260 | new_class.Assign(GetClassRoot(kObjectArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2261 | } else if (strcmp(descriptor, class_roots_descriptors_[kJavaLangStringArrayClass]) == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2262 | new_class.Assign(GetClassRoot(kJavaLangStringArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2263 | } else if (strcmp(descriptor, |
| 2264 | class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]) == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2265 | new_class.Assign(GetClassRoot(kJavaLangReflectArtMethodArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2266 | } else if (strcmp(descriptor, |
| 2267 | class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]) == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2268 | new_class.Assign(GetClassRoot(kJavaLangReflectArtFieldArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2269 | } else if (strcmp(descriptor, "[C") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2270 | new_class.Assign(GetClassRoot(kCharArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2271 | } else if (strcmp(descriptor, "[I") == 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2272 | new_class.Assign(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2273 | } |
| 2274 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2275 | if (new_class.Get() == nullptr) { |
| 2276 | new_class.Assign(AllocClass(self, sizeof(mirror::Class))); |
| 2277 | if (new_class.Get() == nullptr) { |
Mathieu Chartier | c0a9ea4 | 2014-02-03 16:36:49 -0800 | [diff] [blame] | 2278 | return nullptr; |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2279 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2280 | new_class->SetComponentType(component_type.Get()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2281 | } |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2282 | 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] | 2283 | DCHECK(new_class->GetComponentType() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2284 | mirror::Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2285 | new_class->SetSuperClass(java_lang_Object); |
| 2286 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2287 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2288 | new_class->SetClassLoader(component_type->GetClassLoader()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2289 | new_class->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2290 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 2291 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2292 | |
| 2293 | |
| 2294 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 2295 | // interfaces. We need to set that up here, so that stuff like |
| 2296 | // "instanceof" works right. |
| 2297 | // |
| 2298 | // Note: The GC could run during the call to FindSystemClass, |
| 2299 | // so we need to make sure the class object is GC-valid while we're in |
| 2300 | // there. Do this by clearing the interface list so the GC will just |
| 2301 | // think that the entries are null. |
| 2302 | |
| 2303 | |
| 2304 | // Use the single, global copies of "interfaces" and "iftable" |
| 2305 | // (remember not to free them for arrays). |
Mathieu Chartier | c0a9ea4 | 2014-02-03 16:36:49 -0800 | [diff] [blame] | 2306 | CHECK(array_iftable_ != nullptr); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2307 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2308 | |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2309 | // Inherit access flags from the component type. |
| 2310 | int access_flags = new_class->GetComponentType()->GetAccessFlags(); |
| 2311 | // Lose any implementation detail flags; in particular, arrays aren't finalizable. |
| 2312 | access_flags &= kAccJavaFlagsMask; |
| 2313 | // 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] | 2314 | // and remove "interface". |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2315 | access_flags |= kAccAbstract | kAccFinal; |
| 2316 | access_flags &= ~kAccInterface; |
| 2317 | |
| 2318 | new_class->SetAccessFlags(access_flags); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2319 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2320 | mirror::Class* existing = InsertClass(descriptor, new_class.Get(), Hash(descriptor)); |
Mathieu Chartier | c0a9ea4 | 2014-02-03 16:36:49 -0800 | [diff] [blame] | 2321 | if (existing == nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2322 | return new_class.Get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2323 | } |
| 2324 | // Another thread must have loaded the class after we |
| 2325 | // started but before we finished. Abandon what we've |
| 2326 | // done. |
| 2327 | // |
| 2328 | // (Yes, this happens.) |
| 2329 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2330 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2331 | } |
| 2332 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2333 | mirror::Class* ClassLinker::FindPrimitiveClass(char type) { |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2334 | switch (type) { |
| 2335 | case 'B': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2336 | return GetClassRoot(kPrimitiveByte); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2337 | case 'C': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2338 | return GetClassRoot(kPrimitiveChar); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2339 | case 'D': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2340 | return GetClassRoot(kPrimitiveDouble); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2341 | case 'F': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2342 | return GetClassRoot(kPrimitiveFloat); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2343 | case 'I': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2344 | return GetClassRoot(kPrimitiveInt); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2345 | case 'J': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2346 | return GetClassRoot(kPrimitiveLong); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2347 | case 'S': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2348 | return GetClassRoot(kPrimitiveShort); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2349 | case 'Z': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2350 | return GetClassRoot(kPrimitiveBoolean); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2351 | case 'V': |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2352 | return GetClassRoot(kPrimitiveVoid); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 2353 | default: |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2354 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 2355 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2356 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2357 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2358 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2359 | } |
| 2360 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2361 | mirror::Class* ClassLinker::InsertClass(const char* descriptor, mirror::Class* klass, |
| 2362 | size_t hash) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2363 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2364 | mirror::DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2365 | std::string source; |
| 2366 | if (dex_cache != NULL) { |
| 2367 | source += " from "; |
| 2368 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 2369 | } |
| 2370 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 2371 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2372 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 2373 | mirror::Class* existing = |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2374 | LookupClassFromTableLocked(descriptor, klass->GetClassLoader(), hash); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2375 | if (existing != NULL) { |
| 2376 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2377 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2378 | if (kIsDebugBuild && klass->GetClassLoader() == NULL && dex_cache_image_class_lookup_required_) { |
| 2379 | // Check a class loaded with the system class loader matches one in the image if the class |
| 2380 | // is in the image. |
| 2381 | existing = LookupClassFromImage(descriptor); |
| 2382 | if (existing != NULL) { |
| 2383 | CHECK(klass == existing); |
| 2384 | } |
| 2385 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 2386 | VerifyObject(klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2387 | class_table_.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 2388 | if (log_new_class_table_roots_) { |
| 2389 | new_class_roots_.push_back(std::make_pair(hash, klass)); |
| 2390 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2391 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2392 | } |
| 2393 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2394 | bool ClassLinker::RemoveClass(const char* descriptor, const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2395 | size_t hash = Hash(descriptor); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2396 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2397 | for (auto it = class_table_.lower_bound(hash), end = class_table_.end(); it != end && it->first == hash; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2398 | ++it) { |
| 2399 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2400 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2401 | if ((klass->GetClassLoader() == class_loader) && |
| 2402 | (strcmp(descriptor, kh.GetDescriptor()) == 0)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2403 | class_table_.erase(it); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2404 | return true; |
| 2405 | } |
| 2406 | } |
| 2407 | return false; |
| 2408 | } |
| 2409 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2410 | mirror::Class* ClassLinker::LookupClass(const char* descriptor, |
| 2411 | const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2412 | size_t hash = Hash(descriptor); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2413 | { |
| 2414 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
| 2415 | mirror::Class* result = LookupClassFromTableLocked(descriptor, class_loader, hash); |
| 2416 | if (result != NULL) { |
| 2417 | return result; |
| 2418 | } |
Sameer Abu Asal | 2c6de22 | 2013-05-02 17:38:59 -0700 | [diff] [blame] | 2419 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2420 | if (class_loader != NULL || !dex_cache_image_class_lookup_required_) { |
| 2421 | return NULL; |
| 2422 | } else { |
| 2423 | // Lookup failed but need to search dex_caches_. |
| 2424 | mirror::Class* result = LookupClassFromImage(descriptor); |
| 2425 | if (result != NULL) { |
| 2426 | InsertClass(descriptor, result, hash); |
| 2427 | } else { |
| 2428 | // Searching the image dex files/caches failed, we don't want to get into this situation |
| 2429 | // often as map searches are faster, so after kMaxFailedDexCacheLookups move all image |
| 2430 | // classes into the class table. |
| 2431 | const int32_t kMaxFailedDexCacheLookups = 1000; |
| 2432 | if (++failed_dex_cache_class_lookups_ > kMaxFailedDexCacheLookups) { |
| 2433 | MoveImageClassesToClassTable(); |
| 2434 | } |
| 2435 | } |
| 2436 | return result; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2437 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2438 | } |
| 2439 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2440 | mirror::Class* ClassLinker::LookupClassFromTableLocked(const char* descriptor, |
| 2441 | const mirror::ClassLoader* class_loader, |
| 2442 | size_t hash) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2443 | auto end = class_table_.end(); |
| 2444 | for (auto it = class_table_.lower_bound(hash); it != end && it->first == hash; ++it) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2445 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2446 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2447 | if ((klass->GetClassLoader() == class_loader) && |
| 2448 | (strcmp(descriptor, kh.GetDescriptor()) == 0)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2449 | if (kIsDebugBuild) { |
| 2450 | // Check for duplicates in the table. |
| 2451 | for (++it; it != end && it->first == hash; ++it) { |
| 2452 | mirror::Class* klass2 = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2453 | ClassHelper kh(klass2); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2454 | CHECK(!((klass2->GetClassLoader() == class_loader) && |
| 2455 | (strcmp(descriptor, kh.GetDescriptor()) == 0))) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2456 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
| 2457 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2458 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2459 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2460 | return klass; |
| 2461 | } |
| 2462 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2463 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2464 | } |
| 2465 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2466 | static mirror::ObjectArray<mirror::DexCache>* GetImageDexCaches() |
| 2467 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2468 | gc::space::ImageSpace* image = Runtime::Current()->GetHeap()->GetImageSpace(); |
| 2469 | CHECK(image != NULL); |
| 2470 | mirror::Object* root = image->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 2471 | return root->AsObjectArray<mirror::DexCache>(); |
| 2472 | } |
| 2473 | |
| 2474 | void ClassLinker::MoveImageClassesToClassTable() { |
| 2475 | Thread* self = Thread::Current(); |
| 2476 | WriterMutexLock mu(self, *Locks::classlinker_classes_lock_); |
| 2477 | if (!dex_cache_image_class_lookup_required_) { |
| 2478 | return; // All dex cache classes are already in the class table. |
| 2479 | } |
| 2480 | const char* old_no_suspend_cause = |
| 2481 | self->StartAssertNoThreadSuspension("Moving image classes to class table"); |
| 2482 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2483 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
| 2484 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2485 | mirror::ObjectArray<mirror::Class>* types = dex_cache->GetResolvedTypes(); |
| 2486 | for (int32_t j = 0; j < types->GetLength(); j++) { |
| 2487 | mirror::Class* klass = types->Get(j); |
| 2488 | if (klass != NULL) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2489 | ClassHelper kh(klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2490 | DCHECK(klass->GetClassLoader() == NULL); |
| 2491 | const char* descriptor = kh.GetDescriptor(); |
| 2492 | size_t hash = Hash(descriptor); |
| 2493 | mirror::Class* existing = LookupClassFromTableLocked(descriptor, NULL, hash); |
| 2494 | if (existing != NULL) { |
| 2495 | CHECK(existing == klass) << PrettyClassAndClassLoader(existing) << " != " |
| 2496 | << PrettyClassAndClassLoader(klass); |
| 2497 | } else { |
| 2498 | class_table_.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | 893263b | 2014-03-04 11:07:42 -0800 | [diff] [blame] | 2499 | if (log_new_class_table_roots_) { |
| 2500 | new_class_roots_.push_back(std::make_pair(hash, klass)); |
| 2501 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2502 | } |
| 2503 | } |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2504 | } |
| 2505 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2506 | dex_cache_image_class_lookup_required_ = false; |
| 2507 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2508 | } |
| 2509 | |
| 2510 | mirror::Class* ClassLinker::LookupClassFromImage(const char* descriptor) { |
| 2511 | Thread* self = Thread::Current(); |
| 2512 | const char* old_no_suspend_cause = |
| 2513 | self->StartAssertNoThreadSuspension("Image class lookup"); |
| 2514 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
| 2515 | for (int32_t i = 0; i < dex_caches->GetLength(); ++i) { |
| 2516 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2517 | const DexFile* dex_file = dex_cache->GetDexFile(); |
Vladimir Marko | 801a811 | 2014-01-06 14:28:16 +0000 | [diff] [blame] | 2518 | // Try binary searching the string/type index. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2519 | const DexFile::StringId* string_id = dex_file->FindStringId(descriptor); |
| 2520 | if (string_id != NULL) { |
| 2521 | const DexFile::TypeId* type_id = |
| 2522 | dex_file->FindTypeId(dex_file->GetIndexForStringId(*string_id)); |
| 2523 | if (type_id != NULL) { |
| 2524 | uint16_t type_idx = dex_file->GetIndexForTypeId(*type_id); |
| 2525 | mirror::Class* klass = dex_cache->GetResolvedType(type_idx); |
| 2526 | if (klass != NULL) { |
| 2527 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2528 | return klass; |
| 2529 | } |
| 2530 | } |
| 2531 | } |
| 2532 | } |
| 2533 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2534 | return NULL; |
| 2535 | } |
| 2536 | |
| 2537 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<mirror::Class*>& result) { |
| 2538 | result.clear(); |
| 2539 | if (dex_cache_image_class_lookup_required_) { |
| 2540 | MoveImageClassesToClassTable(); |
| 2541 | } |
| 2542 | size_t hash = Hash(descriptor); |
| 2543 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2544 | for (auto it = class_table_.lower_bound(hash), end = class_table_.end(); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 2545 | it != end && it->first == hash; ++it) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2546 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2547 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2548 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2549 | result.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2550 | } |
| 2551 | } |
| 2552 | } |
| 2553 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2554 | void ClassLinker::VerifyClass(const Handle<mirror::Class>& klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2555 | // TODO: assert that the monitor on the Class is held |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2556 | Thread* self = Thread::Current(); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2557 | ObjectLock<mirror::Class> lock(self, klass); |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2558 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2559 | // Don't attempt to re-verify if already sufficiently verified. |
| 2560 | if (klass->IsVerified() || |
| 2561 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2562 | return; |
| 2563 | } |
| 2564 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2565 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2566 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2567 | if (klass->IsErroneous()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2568 | ThrowEarlierClassFailure(klass.Get()); |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2569 | return; |
| 2570 | } |
| 2571 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2572 | if (klass->GetStatus() == mirror::Class::kStatusResolved) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2573 | klass->SetStatus(mirror::Class::kStatusVerifying, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2574 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2575 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime) |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2576 | << PrettyClass(klass.Get()); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2577 | CHECK(!Runtime::Current()->IsCompiler()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2578 | klass->SetStatus(mirror::Class::kStatusVerifyingAtRuntime, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2579 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2580 | |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 2581 | // Skip verification if disabled. |
| 2582 | if (!Runtime::Current()->IsVerificationEnabled()) { |
| 2583 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
| 2584 | return; |
| 2585 | } |
| 2586 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2587 | // Verify super class. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2588 | StackHandleScope<2> hs(self); |
| 2589 | Handle<mirror::Class> super(hs.NewHandle(klass->GetSuperClass())); |
| 2590 | if (super.Get() != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2591 | // Acquire lock to prevent races on verifying the super class. |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2592 | ObjectLock<mirror::Class> lock(self, super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2593 | |
| 2594 | if (!super->IsVerified() && !super->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2595 | VerifyClass(super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2596 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2597 | if (!super->IsCompileTimeVerified()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2598 | std::string error_msg(StringPrintf("Rejecting class %s that attempts to sub-class erroneous class %s", |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2599 | PrettyDescriptor(klass.Get()).c_str(), |
| 2600 | PrettyDescriptor(super.Get()).c_str())); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2601 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2602 | Handle<mirror::Throwable> cause(hs.NewHandle(self->GetException(nullptr))); |
| 2603 | if (cause.Get() != nullptr) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2604 | self->ClearException(); |
| 2605 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2606 | ThrowVerifyError(klass.Get(), "%s", error_msg.c_str()); |
| 2607 | if (cause.Get() != nullptr) { |
| 2608 | self->GetException(nullptr)->SetCause(cause.Get()); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2609 | } |
Jeff Hao | 22cb09b | 2013-12-12 14:29:15 -0800 | [diff] [blame] | 2610 | ClassReference ref(klass->GetDexCache()->GetDexFile(), klass->GetDexClassDefIndex()); |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame] | 2611 | if (Runtime::Current()->IsCompiler()) { |
| 2612 | Runtime::Current()->GetCompilerCallbacks()->ClassRejected(ref); |
| 2613 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2614 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2615 | return; |
| 2616 | } |
| 2617 | } |
| 2618 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2619 | // 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] | 2620 | const DexFile& dex_file = *klass->GetDexCache()->GetDexFile(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2621 | mirror::Class::Status oat_file_class_status(mirror::Class::kStatusNotReady); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2622 | bool preverified = VerifyClassUsingOatFile(dex_file, klass.Get(), oat_file_class_status); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2623 | if (oat_file_class_status == mirror::Class::kStatusError) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2624 | VLOG(class_linker) << "Skipping runtime verification of erroneous class " |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2625 | << PrettyDescriptor(klass.Get()) << " in " |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2626 | << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2627 | ThrowVerifyError(klass.Get(), "Rejecting class %s because it failed compile-time verification", |
| 2628 | PrettyDescriptor(klass.Get()).c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2629 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2630 | return; |
| 2631 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2632 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2633 | std::string error_msg; |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2634 | if (!preverified) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2635 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass.Get(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2636 | Runtime::Current()->IsCompiler(), |
| 2637 | &error_msg); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2638 | } |
| 2639 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2640 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2641 | VLOG(class_linker) << "Soft verification failure in class " << PrettyDescriptor(klass.Get()) |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2642 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2643 | << " because: " << error_msg; |
| 2644 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2645 | self->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2646 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2647 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2648 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2649 | // Even though there were no verifier failures we need to respect whether the super-class |
| 2650 | // was verified or requiring runtime reverification. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2651 | if (super.Get() == NULL || super->IsVerified()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2652 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2653 | } else { |
| 2654 | CHECK_EQ(super->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2655 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2656 | // Pretend a soft failure occured so that we don't consider the class verified below. |
| 2657 | verifier_failure = verifier::MethodVerifier::kSoftFailure; |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2658 | } |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2659 | } else { |
| 2660 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2661 | // Soft failures at compile time should be retried at runtime. Soft |
| 2662 | // failures at runtime will be handled by slow paths in the generated |
| 2663 | // code. Set status accordingly. |
| 2664 | if (Runtime::Current()->IsCompiler()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2665 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2666 | } else { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2667 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2668 | } |
| 2669 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2670 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2671 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass.Get()) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2672 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2673 | << " because: " << error_msg; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2674 | self->AssertNoPendingException(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2675 | ThrowVerifyError(klass.Get(), "%s", error_msg.c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2676 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2677 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2678 | if (preverified || verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2679 | // 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] | 2680 | // Let the interpreter know it by setting the kAccPreverified flag onto each |
| 2681 | // method. |
| 2682 | // Note: we're going here during compilation and at runtime. When we set the |
| 2683 | // kAccPreverified flag when compiling image classes, the flag is recorded |
| 2684 | // in the image and is set when loading the image. |
| 2685 | klass->SetPreverifiedFlagOnAllMethods(); |
| 2686 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2687 | } |
| 2688 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2689 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, mirror::Class* klass, |
| 2690 | mirror::Class::Status& oat_file_class_status) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2691 | // If we're compiling, we can only verify the class using the oat file if |
| 2692 | // we are not compiling the image or if the class we're verifying is not part of |
| 2693 | // the app. In other words, we will only check for preverification of bootclasspath |
| 2694 | // classes. |
| 2695 | if (Runtime::Current()->IsCompiler()) { |
| 2696 | // Are we compiling the bootclasspath? |
| 2697 | if (!Runtime::Current()->UseCompileTimeClassPath()) { |
| 2698 | return false; |
| 2699 | } |
| 2700 | // We are compiling an app (not the image). |
| 2701 | |
| 2702 | // Is this an app class? (I.e. not a bootclasspath class) |
| 2703 | if (klass->GetClassLoader() != NULL) { |
| 2704 | return false; |
| 2705 | } |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2706 | } |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2707 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2708 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Anwar Ghuloum | ad256bb | 2013-07-18 14:58:55 -0700 | [diff] [blame] | 2709 | // Make this work with gtests, which do not set up the image properly. |
| 2710 | // TODO: we should clean up gtests to set up the image path properly. |
| 2711 | if (Runtime::Current()->IsCompiler() && (oat_file == NULL)) { |
| 2712 | return false; |
| 2713 | } |
| 2714 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2715 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 2716 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 2717 | 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] | 2718 | &dex_location_checksum); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2719 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2720 | uint16_t class_def_index = klass->GetDexClassDefIndex(); |
Vladimir Marko | d3c5beb | 2014-04-11 16:32:51 +0100 | [diff] [blame] | 2721 | oat_file_class_status = oat_dex_file->GetOatClass(class_def_index).GetStatus(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2722 | if (oat_file_class_status == mirror::Class::kStatusVerified || |
| 2723 | oat_file_class_status == mirror::Class::kStatusInitialized) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2724 | return true; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2725 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2726 | if (oat_file_class_status == mirror::Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2727 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2728 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2729 | // class ... { |
| 2730 | // Foo x; |
| 2731 | // .... () { |
| 2732 | // if (...) { |
| 2733 | // v1 gets assigned a type of resolved class Foo |
| 2734 | // } else { |
| 2735 | // v1 gets assigned a type of unresolved class Bar |
| 2736 | // } |
| 2737 | // iput x = v1 |
| 2738 | // } } |
| 2739 | // when we merge v1 following the if-the-else it results in Conflict |
| 2740 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2741 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2742 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2743 | // at compile time). |
| 2744 | return false; |
| 2745 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2746 | if (oat_file_class_status == mirror::Class::kStatusError) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2747 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2748 | // in the class. These errors are unrecoverable. |
| 2749 | return false; |
| 2750 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2751 | if (oat_file_class_status == mirror::Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2752 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2753 | // not loading the class. |
| 2754 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2755 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2756 | return false; |
| 2757 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2758 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2759 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " |
| 2760 | << ClassHelper(klass).GetDescriptor(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2761 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2762 | return false; |
| 2763 | } |
| 2764 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2765 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2766 | const Handle<mirror::Class>& klass) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2767 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 2768 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 2769 | } |
| 2770 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 2771 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 2772 | } |
| 2773 | } |
| 2774 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2775 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2776 | mirror::ArtMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2777 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 2778 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 2779 | if (code_item == NULL) { |
| 2780 | return; // native or abstract method |
| 2781 | } |
| 2782 | if (code_item->tries_size_ == 0) { |
| 2783 | return; // nothing to process |
| 2784 | } |
| 2785 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 2786 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 2787 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 2788 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 2789 | CatchHandlerIterator iterator(handlers_ptr); |
| 2790 | for (; iterator.HasNext(); iterator.Next()) { |
| 2791 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 2792 | // unresolved exception types will be ignored by exception delivery |
| 2793 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2794 | mirror::Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2795 | if (exception_type == NULL) { |
| 2796 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2797 | Thread::Current()->ClearException(); |
| 2798 | } |
| 2799 | } |
| 2800 | } |
| 2801 | handlers_ptr = iterator.EndDataPointer(); |
| 2802 | } |
| 2803 | } |
| 2804 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2805 | static void CheckProxyConstructor(mirror::ArtMethod* constructor); |
| 2806 | static void CheckProxyMethod(mirror::ArtMethod* method, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2807 | Handle<mirror::ArtMethod>& prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2808 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2809 | mirror::Class* ClassLinker::CreateProxyClass(ScopedObjectAccess& soa, jstring name, |
| 2810 | jobjectArray interfaces, jobject loader, |
| 2811 | jobjectArray methods, jobjectArray throws) { |
| 2812 | Thread* self = soa.Self(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2813 | StackHandleScope<8> hs(self); |
| 2814 | Handle<mirror::Class> klass(hs.NewHandle(AllocClass(self, GetClassRoot(kJavaLangClass), |
| 2815 | sizeof(mirror::SynthesizedProxyClass)))); |
| 2816 | if (klass.Get() == NULL) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2817 | CHECK(self->IsExceptionPending()); // OOME. |
| 2818 | return NULL; |
| 2819 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2820 | DCHECK(klass->GetClass() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2821 | klass->SetObjectSize(sizeof(mirror::Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2822 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2823 | klass->SetClassLoader(soa.Decode<mirror::ClassLoader*>(loader)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2824 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2825 | klass->SetName(soa.Decode<mirror::String*>(name)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2826 | mirror::Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2827 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2828 | klass->SetStatus(mirror::Class::kStatusIdx, self); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2829 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2830 | // Instance fields are inherited, but we add a couple of static fields... |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2831 | { |
| 2832 | mirror::ObjectArray<mirror::ArtField>* sfields = AllocArtFieldArray(self, 2); |
| 2833 | if (UNLIKELY(sfields == NULL)) { |
| 2834 | CHECK(self->IsExceptionPending()); // OOME. |
| 2835 | return NULL; |
| 2836 | } |
| 2837 | klass->SetSFields(sfields); |
| 2838 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2839 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 2840 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2841 | Handle<mirror::ArtField> interfaces_sfield(hs.NewHandle(AllocArtField(self))); |
| 2842 | if (UNLIKELY(interfaces_sfield.Get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2843 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2844 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2845 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2846 | klass->SetStaticField(0, interfaces_sfield.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2847 | interfaces_sfield->SetDexFieldIndex(0); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2848 | interfaces_sfield->SetDeclaringClass(klass.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2849 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 2850 | // 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] | 2851 | Handle<mirror::ArtField> throws_sfield(hs.NewHandle(AllocArtField(self))); |
| 2852 | if (UNLIKELY(throws_sfield.Get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2853 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2854 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2855 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2856 | klass->SetStaticField(1, throws_sfield.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2857 | throws_sfield->SetDexFieldIndex(1); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2858 | throws_sfield->SetDeclaringClass(klass.Get()); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2859 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2860 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2861 | // Proxies have 1 direct method, the constructor |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2862 | { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2863 | mirror::ObjectArray<mirror::ArtMethod>* directs = AllocArtMethodArray(self, 1); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2864 | if (UNLIKELY(directs == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2865 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2866 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2867 | } |
| 2868 | klass->SetDirectMethods(directs); |
| 2869 | mirror::ArtMethod* constructor = CreateProxyConstructor(self, klass, proxy_class); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2870 | if (UNLIKELY(constructor == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2871 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2872 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2873 | } |
| 2874 | klass->SetDirectMethod(0, constructor); |
| 2875 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2876 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2877 | // Create virtual method using specified prototypes. |
| 2878 | size_t num_virtual_methods = |
| 2879 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods)->GetLength(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2880 | { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2881 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = AllocArtMethodArray(self, num_virtual_methods); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2882 | if (UNLIKELY(virtuals == NULL)) { |
| 2883 | CHECK(self->IsExceptionPending()); // OOME. |
| 2884 | return NULL; |
| 2885 | } |
| 2886 | klass->SetVirtualMethods(virtuals); |
| 2887 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2888 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2889 | StackHandleScope<1> hs(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2890 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 2891 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2892 | Handle<mirror::ArtMethod> prototype(hs.NewHandle(decoded_methods->Get(i))); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2893 | mirror::ArtMethod* clone = CreateProxyMethod(self, klass, prototype); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2894 | if (UNLIKELY(clone == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2895 | CHECK(self->IsExceptionPending()); // OOME. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2896 | return nullptr; |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2897 | } |
| 2898 | klass->SetVirtualMethod(i, clone); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2899 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2900 | |
| 2901 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2902 | klass->SetStatus(mirror::Class::kStatusLoaded, self); // Class is now effectively in the loaded state |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2903 | self->AssertNoPendingException(); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2904 | |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2905 | { |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2906 | ObjectLock<mirror::Class> lock(self, klass); // Must hold lock on object when resolved. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2907 | // Link the fields and virtual methods, creating vtable and iftables |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2908 | Handle<mirror::ObjectArray<mirror::Class> > h_interfaces( |
| 2909 | hs.NewHandle(soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces))); |
| 2910 | if (!LinkClass(self, klass, h_interfaces)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2911 | klass->SetStatus(mirror::Class::kStatusError, self); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2912 | return nullptr; |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2913 | } |
| 2914 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2915 | interfaces_sfield->SetObject<false>(klass.Get(), soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2916 | throws_sfield->SetObject<false>(klass.Get(), soa.Decode<mirror::ObjectArray<mirror::ObjectArray<mirror::Class> >*>(throws)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2917 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2918 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2919 | |
| 2920 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 2921 | if (kIsDebugBuild) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2922 | CHECK(klass->GetIFields() == nullptr); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2923 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2924 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2925 | StackHandleScope<1> hs(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2926 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 2927 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2928 | Handle<mirror::ArtMethod> prototype(hs.NewHandle(decoded_methods->Get(i))); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2929 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2930 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2931 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2932 | mirror::String* decoded_name = soa.Decode<mirror::String*>(name); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2933 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2934 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2935 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 2936 | |
| 2937 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2938 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2939 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2940 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2941 | mirror::SynthesizedProxyClass* synth_proxy_class = |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2942 | down_cast<mirror::SynthesizedProxyClass*>(klass.Get()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2943 | CHECK_EQ(synth_proxy_class->GetInterfaces(), soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2944 | CHECK_EQ(synth_proxy_class->GetThrows(), soa.Decode<mirror::ObjectArray<mirror::ObjectArray<mirror::Class> >*>(throws)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2945 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2946 | std::string descriptor(GetDescriptorForProxy(klass.Get())); |
| 2947 | 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] | 2948 | CHECK(existing == nullptr); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2949 | return klass.Get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2950 | } |
| 2951 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2952 | std::string ClassLinker::GetDescriptorForProxy(mirror::Class* proxy_class) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2953 | DCHECK(proxy_class->IsProxyClass()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2954 | mirror::String* name = proxy_class->GetName(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2955 | DCHECK(name != NULL); |
| 2956 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2957 | } |
| 2958 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2959 | mirror::ArtMethod* ClassLinker::FindMethodForProxy(mirror::Class* proxy_class, |
| 2960 | mirror::ArtMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2961 | DCHECK(proxy_class->IsProxyClass()); |
| 2962 | DCHECK(proxy_method->IsProxyMethod()); |
| 2963 | // Locate the dex cache of the original interface/Object |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2964 | mirror::DexCache* dex_cache = NULL; |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2965 | { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2966 | mirror::ObjectArray<mirror::Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2967 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2968 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2969 | if (dex_caches_[i]->GetResolvedTypes() == resolved_types) { |
| 2970 | dex_cache = dex_caches_[i]; |
| 2971 | break; |
| 2972 | } |
| 2973 | } |
| 2974 | } |
| 2975 | CHECK(dex_cache != NULL); |
| 2976 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2977 | mirror::ArtMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2978 | CHECK(resolved_method != NULL); |
| 2979 | return resolved_method; |
| 2980 | } |
| 2981 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2982 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2983 | mirror::ArtMethod* ClassLinker::CreateProxyConstructor(Thread* self, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2984 | const Handle<mirror::Class>& klass, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2985 | mirror::Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2986 | // Create constructor for Proxy that must initialize h |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2987 | mirror::ObjectArray<mirror::ArtMethod>* proxy_direct_methods = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2988 | proxy_class->GetDirectMethods(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2989 | CHECK_EQ(proxy_direct_methods->GetLength(), 16); |
| 2990 | mirror::ArtMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2991 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2992 | // code_ too) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2993 | mirror::ArtMethod* constructor = |
| 2994 | down_cast<mirror::ArtMethod*>(proxy_constructor->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2995 | if (constructor == NULL) { |
| 2996 | CHECK(self->IsExceptionPending()); // OOME. |
| 2997 | return NULL; |
| 2998 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2999 | // Make this constructor public and fix the class to be our Proxy version |
| 3000 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3001 | constructor->SetDeclaringClass(klass.Get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3002 | return constructor; |
| 3003 | } |
| 3004 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3005 | static void CheckProxyConstructor(mirror::ArtMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3006 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3007 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3008 | MethodHelper mh(constructor); |
| 3009 | CHECK_STREQ(mh.GetName(), "<init>"); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 3010 | CHECK_STREQ(mh.GetSignature().ToString().c_str(), "(Ljava/lang/reflect/InvocationHandler;)V"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3011 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3012 | } |
| 3013 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3014 | mirror::ArtMethod* ClassLinker::CreateProxyMethod(Thread* self, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3015 | const Handle<mirror::Class>& klass, |
| 3016 | const Handle<mirror::ArtMethod>& prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3017 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 3018 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3019 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3020 | prototype.Get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3021 | // 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] | 3022 | // as necessary |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3023 | mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(prototype->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3024 | if (UNLIKELY(method == NULL)) { |
| 3025 | CHECK(self->IsExceptionPending()); // OOME. |
| 3026 | return NULL; |
| 3027 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3028 | |
| 3029 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 3030 | // the intersection of throw exceptions as defined in Proxy |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3031 | method->SetDeclaringClass(klass.Get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3032 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3033 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3034 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 3035 | // related parameters from this method. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3036 | method->SetEntryPointFromQuickCompiledCode(GetQuickProxyInvokeHandler()); |
| 3037 | method->SetEntryPointFromPortableCompiledCode(GetPortableProxyInvokeHandler()); |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 3038 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 3039 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3040 | return method; |
| 3041 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3042 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3043 | static void CheckProxyMethod(mirror::ArtMethod* method, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3044 | Handle<mirror::ArtMethod>& prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3045 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3046 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3047 | CHECK(!prototype->IsFinal()); |
| 3048 | CHECK(method->IsFinal()); |
| 3049 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3050 | |
| 3051 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 3052 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 3053 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 3054 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 3055 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3056 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 3057 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3058 | MethodHelper mh(method); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3059 | MethodHelper mh2(prototype.Get()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3060 | CHECK_STREQ(mh.GetName(), mh2.GetName()); |
| 3061 | CHECK_STREQ(mh.GetShorty(), mh2.GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 3062 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3063 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 3064 | } |
| 3065 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3066 | static bool CanWeInitializeClass(mirror::Class* klass, bool can_init_statics, |
| 3067 | bool can_init_parents) |
| 3068 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 3069 | if (can_init_statics && can_init_parents) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3070 | return true; |
| 3071 | } |
| 3072 | if (!can_init_statics) { |
| 3073 | // Check if there's a class initializer. |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 3074 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3075 | if (clinit != NULL) { |
| 3076 | return false; |
| 3077 | } |
| 3078 | // Check if there are encoded static values needing initialization. |
| 3079 | if (klass->NumStaticFields() != 0) { |
| 3080 | ClassHelper kh(klass); |
| 3081 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 3082 | DCHECK(dex_class_def != NULL); |
| 3083 | if (dex_class_def->static_values_off_ != 0) { |
| 3084 | return false; |
| 3085 | } |
| 3086 | } |
| 3087 | } |
| 3088 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 3089 | mirror::Class* super_class = klass->GetSuperClass(); |
| 3090 | if (!can_init_parents && !super_class->IsInitialized()) { |
| 3091 | return false; |
| 3092 | } else { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 3093 | if (!CanWeInitializeClass(super_class, can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3094 | return false; |
| 3095 | } |
| 3096 | } |
| 3097 | } |
| 3098 | return true; |
| 3099 | } |
| 3100 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3101 | bool ClassLinker::IsInitialized() const { |
| 3102 | return init_done_; |
| 3103 | } |
| 3104 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3105 | bool ClassLinker::InitializeClass(const Handle<mirror::Class>& klass, bool can_init_statics, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3106 | bool can_init_parents) { |
| 3107 | // see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol |
| 3108 | |
| 3109 | // Are we already initialized and therefore done? |
| 3110 | // Note: we differ from the JLS here as we don't do this under the lock, this is benign as |
| 3111 | // an initialized class will never change its state. |
| 3112 | if (klass->IsInitialized()) { |
| 3113 | return true; |
| 3114 | } |
| 3115 | |
| 3116 | // 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] | 3117 | if (!CanWeInitializeClass(klass.Get(), can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3118 | return false; |
| 3119 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3120 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 3121 | Thread* self = Thread::Current(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3122 | uint64_t t0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3123 | { |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 3124 | ObjectLock<mirror::Class> lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3125 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3126 | // Re-check under the lock in case another thread initialized ahead of us. |
| 3127 | if (klass->IsInitialized()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3128 | return true; |
| 3129 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3130 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3131 | // 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] | 3132 | if (klass->IsErroneous()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3133 | ThrowEarlierClassFailure(klass.Get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3134 | return false; |
| 3135 | } |
| 3136 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3137 | CHECK(klass->IsResolved()) << PrettyClass(klass.Get()) << ": state=" << klass->GetStatus(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3138 | |
| 3139 | if (!klass->IsVerified()) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 3140 | VerifyClass(klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3141 | if (!klass->IsVerified()) { |
| 3142 | // We failed to verify, expect either the klass to be erroneous or verification failed at |
| 3143 | // compile time. |
| 3144 | if (klass->IsErroneous()) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3145 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3146 | } else { |
| 3147 | CHECK(Runtime::Current()->IsCompiler()); |
| 3148 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3149 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3150 | return false; |
| 3151 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3152 | } |
| 3153 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3154 | // If the class is kStatusInitializing, either this thread is |
| 3155 | // initializing higher up the stack or another thread has beat us |
| 3156 | // to initializing and we need to wait. Either way, this |
| 3157 | // invocation of InitializeClass will not be responsible for |
| 3158 | // running <clinit> and will return. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3159 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 3160 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3161 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3162 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3163 | return true; |
| 3164 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3165 | // No. That's fine. Wait for another thread to finish initializing. |
| 3166 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3167 | } |
| 3168 | |
| 3169 | if (!ValidateSuperClassDescriptors(klass)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3170 | klass->SetStatus(mirror::Class::kStatusError, self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3171 | return false; |
| 3172 | } |
| 3173 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3174 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusVerified) << PrettyClass(klass.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3175 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3176 | // From here out other threads may observe that we're initializing and so changes of state |
| 3177 | // require the a notification. |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3178 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3179 | klass->SetStatus(mirror::Class::kStatusInitializing, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3180 | |
| 3181 | t0 = NanoTime(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3182 | } |
| 3183 | |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 3184 | // Initialize super classes, must be done while initializing for the JLS. |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3185 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 3186 | mirror::Class* super_class = klass->GetSuperClass(); |
| 3187 | if (!super_class->IsInitialized()) { |
| 3188 | CHECK(!super_class->IsInterface()); |
| 3189 | CHECK(can_init_parents); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3190 | StackHandleScope<1> hs(self); |
| 3191 | Handle<mirror::Class> handle_scope_super(hs.NewHandle(super_class)); |
| 3192 | bool super_initialized = InitializeClass(handle_scope_super, can_init_statics, true); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3193 | if (!super_initialized) { |
| 3194 | // The super class was verified ahead of entering initializing, we should only be here if |
| 3195 | // the super class became erroneous due to initialization. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3196 | CHECK(handle_scope_super->IsErroneous() && self->IsExceptionPending()) |
| 3197 | << "Super class initialization failed for " << PrettyDescriptor(handle_scope_super.Get()) |
| 3198 | << " that has unexpected status " << handle_scope_super->GetStatus() |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3199 | << "\nPending exception:\n" |
| 3200 | << (self->GetException(NULL) != NULL ? self->GetException(NULL)->Dump() : ""); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 3201 | ObjectLock<mirror::Class> lock(self, klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3202 | // Initialization failed because the super-class is erroneous. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3203 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3204 | return false; |
| 3205 | } |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 3206 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3207 | } |
| 3208 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3209 | if (klass->NumStaticFields() > 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3210 | ClassHelper kh(klass.Get()); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3211 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 3212 | CHECK(dex_class_def != NULL); |
| 3213 | const DexFile& dex_file = kh.GetDexFile(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3214 | StackHandleScope<2> hs(self); |
| 3215 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(klass->GetClassLoader())); |
| 3216 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(kh.GetDexCache())); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3217 | EncodedStaticFieldValueIterator it(dex_file, &dex_cache, &class_loader, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3218 | this, *dex_class_def); |
| 3219 | if (it.HasNext()) { |
| 3220 | CHECK(can_init_statics); |
| 3221 | // We reordered the fields, so we need to be able to map the field indexes to the right fields. |
| 3222 | SafeMap<uint32_t, mirror::ArtField*> field_map; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3223 | ConstructFieldMap(dex_file, *dex_class_def, klass.Get(), field_map); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3224 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3225 | if (Runtime::Current()->IsActiveTransaction()) { |
| 3226 | it.ReadValueToField<true>(field_map.Get(i)); |
| 3227 | } else { |
| 3228 | it.ReadValueToField<false>(field_map.Get(i)); |
| 3229 | } |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3230 | } |
| 3231 | } |
| 3232 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3233 | |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 3234 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3235 | if (clinit != NULL) { |
| 3236 | CHECK(can_init_statics); |
Ian Rogers | 5d27faf | 2014-05-02 17:17:18 -0700 | [diff] [blame] | 3237 | JValue result; |
| 3238 | clinit->Invoke(self, NULL, 0, &result, "V"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3239 | } |
| 3240 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3241 | uint64_t t1 = NanoTime(); |
| 3242 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3243 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3244 | { |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 3245 | ObjectLock<mirror::Class> lock(self, klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3246 | |
| 3247 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3248 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3249 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3250 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3251 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3252 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 3253 | RuntimeStats* thread_stats = self->GetStats(); |
| 3254 | ++global_stats->class_init_count; |
| 3255 | ++thread_stats->class_init_count; |
| 3256 | global_stats->class_init_time_ns += (t1 - t0); |
| 3257 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 3258 | // Set the class as initialized except if failed to initialize static fields. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3259 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3260 | if (VLOG_IS_ON(class_linker)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3261 | ClassHelper kh(klass.Get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3262 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 3263 | } |
Brian Carlstrom | 073278c | 2014-02-19 15:21:21 -0800 | [diff] [blame] | 3264 | // Opportunistically set static method trampolines to their destination. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3265 | FixupStaticTrampolines(klass.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3266 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3267 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3268 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3269 | } |
| 3270 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3271 | bool ClassLinker::WaitForInitializeClass(const Handle<mirror::Class>& klass, Thread* self, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3272 | ObjectLock<mirror::Class>& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3273 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3274 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3275 | self->AssertNoPendingException(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3276 | CHECK(!klass->IsInitialized()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 3277 | lock.WaitIgnoringInterrupts(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3278 | |
| 3279 | // When we wake up, repeat the test for init-in-progress. If |
| 3280 | // there's an exception pending (only possible if |
| 3281 | // "interruptShouldThrow" was set), bail out. |
| 3282 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3283 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3284 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3285 | return false; |
| 3286 | } |
| 3287 | // Spurious wakeup? Go back to waiting. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3288 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3289 | continue; |
| 3290 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3291 | if (klass->GetStatus() == mirror::Class::kStatusVerified && Runtime::Current()->IsCompiler()) { |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 3292 | // Compile time initialization failed. |
| 3293 | return false; |
| 3294 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3295 | if (klass->IsErroneous()) { |
| 3296 | // The caller wants an exception, but it was thrown in a |
| 3297 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 3298 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3299 | PrettyDescriptor(klass.Get()).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3300 | return false; |
| 3301 | } |
| 3302 | if (klass->IsInitialized()) { |
| 3303 | return true; |
| 3304 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3305 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass.Get()) << " is " |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3306 | << klass->GetStatus(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3307 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3308 | LOG(FATAL) << "Not Reached" << PrettyClass(klass.Get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3309 | } |
| 3310 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3311 | bool ClassLinker::ValidateSuperClassDescriptors(const Handle<mirror::Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3312 | if (klass->IsInterface()) { |
| 3313 | return true; |
| 3314 | } |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3315 | // Begin with the methods local to the superclass. |
| 3316 | MethodHelper mh; |
| 3317 | MethodHelper super_mh; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3318 | if (klass->HasSuperClass() && |
| 3319 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3320 | for (int i = klass->GetSuperClass()->GetVTable()->GetLength() - 1; i >= 0; --i) { |
| 3321 | mh.ChangeMethod(klass->GetVTable()->GetWithoutChecks(i)); |
| 3322 | super_mh.ChangeMethod(klass->GetSuperClass()->GetVTable()->GetWithoutChecks(i)); |
| 3323 | bool is_override = mh.GetMethod() != super_mh.GetMethod(); |
| 3324 | if (is_override && !mh.HasSameSignatureWithDifferentClassLoaders(&super_mh)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3325 | ThrowLinkageError(klass.Get(), "Class %s method %s resolves differently in superclass %s", |
| 3326 | PrettyDescriptor(klass.Get()).c_str(), |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3327 | PrettyMethod(mh.GetMethod()).c_str(), |
| 3328 | PrettyDescriptor(klass->GetSuperClass()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3329 | return false; |
| 3330 | } |
| 3331 | } |
| 3332 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3333 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3334 | if (klass->GetClassLoader() != klass->GetIfTable()->GetInterface(i)->GetClassLoader()) { |
| 3335 | uint32_t num_methods = klass->GetIfTable()->GetInterface(i)->NumVirtualMethods(); |
| 3336 | for (uint32_t j = 0; j < num_methods; ++j) { |
| 3337 | mh.ChangeMethod(klass->GetIfTable()->GetMethodArray(i)->GetWithoutChecks(j)); |
| 3338 | super_mh.ChangeMethod(klass->GetIfTable()->GetInterface(i)->GetVirtualMethod(j)); |
| 3339 | bool is_override = mh.GetMethod() != super_mh.GetMethod(); |
| 3340 | if (is_override && !mh.HasSameSignatureWithDifferentClassLoaders(&super_mh)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3341 | ThrowLinkageError(klass.Get(), "Class %s method %s resolves differently in interface %s", |
| 3342 | PrettyDescriptor(klass.Get()).c_str(), |
Ian Rogers | 151f221 | 2014-05-06 11:27:27 -0700 | [diff] [blame] | 3343 | PrettyMethod(mh.GetMethod()).c_str(), |
| 3344 | PrettyDescriptor(klass->GetIfTable()->GetInterface(i)).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3345 | return false; |
| 3346 | } |
| 3347 | } |
| 3348 | } |
| 3349 | } |
| 3350 | return true; |
| 3351 | } |
| 3352 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3353 | bool ClassLinker::EnsureInitialized(const Handle<mirror::Class>& c, bool can_init_fields, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3354 | bool can_init_parents) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3355 | DCHECK(c.Get() != NULL); |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 3356 | if (c->IsInitialized()) { |
| 3357 | return true; |
| 3358 | } |
| 3359 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3360 | bool success = InitializeClass(c, can_init_fields, can_init_parents); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3361 | if (!success) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3362 | if (can_init_fields && can_init_parents) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3363 | CHECK(Thread::Current()->IsExceptionPending()) << PrettyClass(c.Get()); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3364 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3365 | } |
| 3366 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 3367 | } |
| 3368 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3369 | 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] | 3370 | mirror::Class* c, |
| 3371 | SafeMap<uint32_t, mirror::ArtField*>& field_map) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3372 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3373 | ClassDataItemIterator it(dex_file, class_data); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3374 | StackHandleScope<2> hs(Thread::Current()); |
| 3375 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(c->GetDexCache())); |
| 3376 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(c->GetClassLoader())); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3377 | CHECK(!kMovingFields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3378 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3379 | 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] | 3380 | } |
| 3381 | } |
| 3382 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3383 | bool ClassLinker::LinkClass(Thread* self, const Handle<mirror::Class>& klass, |
| 3384 | const Handle<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3385 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3386 | if (!LinkSuperClass(klass)) { |
| 3387 | return false; |
| 3388 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3389 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3390 | return false; |
| 3391 | } |
| 3392 | if (!LinkInstanceFields(klass)) { |
| 3393 | return false; |
| 3394 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3395 | if (!LinkStaticFields(klass)) { |
| 3396 | return false; |
| 3397 | } |
| 3398 | CreateReferenceInstanceOffsets(klass); |
| 3399 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3400 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3401 | klass->SetStatus(mirror::Class::kStatusResolved, self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3402 | return true; |
| 3403 | } |
| 3404 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3405 | bool ClassLinker::LoadSuperAndInterfaces(const Handle<mirror::Class>& klass, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3406 | const DexFile& dex_file) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3407 | CHECK_EQ(mirror::Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3408 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(klass->GetDexClassDefIndex()); |
| 3409 | uint16_t super_class_idx = class_def.superclass_idx_; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3410 | if (super_class_idx != DexFile::kDexNoIndex16) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3411 | mirror::Class* super_class = ResolveType(dex_file, super_class_idx, klass.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3412 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3413 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3414 | return false; |
| 3415 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3416 | // Verify |
| 3417 | if (!klass->CanAccess(super_class)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3418 | ThrowIllegalAccessError(klass.Get(), "Class %s extended by class %s is inaccessible", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3419 | PrettyDescriptor(super_class).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3420 | PrettyDescriptor(klass.Get()).c_str()); |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3421 | return false; |
| 3422 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3423 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3424 | } |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3425 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(class_def); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3426 | if (interfaces != NULL) { |
| 3427 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 3428 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3429 | mirror::Class* interface = ResolveType(dex_file, idx, klass.Get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3430 | if (interface == NULL) { |
| 3431 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3432 | return false; |
| 3433 | } |
| 3434 | // Verify |
| 3435 | if (!klass->CanAccess(interface)) { |
| 3436 | // TODO: the RI seemed to ignore this in my testing. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3437 | ThrowIllegalAccessError(klass.Get(), "Interface %s implemented by class %s is inaccessible", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3438 | PrettyDescriptor(interface).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3439 | PrettyDescriptor(klass.Get()).c_str()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3440 | return false; |
| 3441 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3442 | } |
| 3443 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 3444 | // Mark the class as loaded. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3445 | klass->SetStatus(mirror::Class::kStatusLoaded, NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3446 | return true; |
| 3447 | } |
| 3448 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3449 | bool ClassLinker::LinkSuperClass(const Handle<mirror::Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3450 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3451 | mirror::Class* super = klass->GetSuperClass(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3452 | if (klass.Get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3453 | if (super != NULL) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3454 | ThrowClassFormatError(klass.Get(), "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3455 | return false; |
| 3456 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3457 | return true; |
| 3458 | } |
| 3459 | if (super == NULL) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3460 | ThrowLinkageError(klass.Get(), "No superclass defined for class %s", |
| 3461 | PrettyDescriptor(klass.Get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3462 | return false; |
| 3463 | } |
| 3464 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3465 | if (super->IsFinal() || super->IsInterface()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3466 | ThrowIncompatibleClassChangeError(klass.Get(), "Superclass %s of %s is %s", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3467 | PrettyDescriptor(super).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3468 | PrettyDescriptor(klass.Get()).c_str(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3469 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3470 | return false; |
| 3471 | } |
| 3472 | if (!klass->CanAccess(super)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3473 | ThrowIllegalAccessError(klass.Get(), "Superclass %s is inaccessible to class %s", |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3474 | PrettyDescriptor(super).c_str(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3475 | PrettyDescriptor(klass.Get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3476 | return false; |
| 3477 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 3478 | |
| 3479 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 3480 | if (super->IsFinalizable()) { |
| 3481 | klass->SetFinalizable(); |
| 3482 | } |
| 3483 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3484 | // Inherit reference flags (if any) from the superclass. |
| 3485 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 3486 | if (reference_flags != 0) { |
| 3487 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 3488 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3489 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 3490 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3491 | ThrowLinkageError(klass.Get(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3492 | "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] | 3493 | PrettyDescriptor(klass.Get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3494 | return false; |
| 3495 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3496 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3497 | if (kIsDebugBuild) { |
| 3498 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 3499 | while (super != NULL) { |
| 3500 | CHECK(super->IsResolved()); |
| 3501 | super = super->GetSuperClass(); |
| 3502 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3503 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3504 | return true; |
| 3505 | } |
| 3506 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3507 | // Populate the class vtable and itable. Compute return type indices. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3508 | bool ClassLinker::LinkMethods(const Handle<mirror::Class>& klass, |
| 3509 | const Handle<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3510 | if (klass->IsInterface()) { |
| 3511 | // No vtable. |
| 3512 | size_t count = klass->NumVirtualMethods(); |
| 3513 | if (!IsUint(16, count)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3514 | ThrowClassFormatError(klass.Get(), "Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3515 | return false; |
| 3516 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 3517 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3518 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3519 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 3520 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3521 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3522 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 3523 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3524 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3525 | } |
| 3526 | return true; |
| 3527 | } |
| 3528 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3529 | bool ClassLinker::LinkVirtualMethods(const Handle<mirror::Class>& klass) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3530 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3531 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3532 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 3533 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3534 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3535 | // 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] | 3536 | StackHandleScope<1> hs(self); |
| 3537 | Handle<mirror::ObjectArray<mirror::ArtMethod>> vtable( |
| 3538 | hs.NewHandle(klass->GetSuperClass()->GetVTable()->CopyOf(self, max_count))); |
| 3539 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3540 | CHECK(self->IsExceptionPending()); // OOME. |
| 3541 | return false; |
| 3542 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3543 | // See if any of our virtual methods override the superclass. |
| 3544 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3545 | mirror::ArtMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3546 | MethodHelper local_mh(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3547 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3548 | for (; j < actual_count; ++j) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3549 | mirror::ArtMethod* super_method = vtable->Get(j); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3550 | MethodHelper super_mh(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3551 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
| 3552 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), super_method->GetAccessFlags())) { |
| 3553 | if (super_method->IsFinal()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3554 | ThrowLinkageError(klass.Get(), "Method %s overrides final method in class %s", |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3555 | PrettyMethod(local_method).c_str(), |
| 3556 | super_mh.GetDeclaringClassDescriptor()); |
| 3557 | return false; |
| 3558 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3559 | vtable->Set<false>(j, local_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3560 | local_method->SetMethodIndex(j); |
| 3561 | break; |
| 3562 | } else { |
| 3563 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 3564 | << " would have incorrectly overridden the package-private method in " |
| 3565 | << PrettyDescriptor(super_mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3566 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3567 | } |
| 3568 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3569 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3570 | // Not overriding, append. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3571 | vtable->Set<false>(actual_count, local_method); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3572 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3573 | actual_count += 1; |
| 3574 | } |
| 3575 | } |
| 3576 | if (!IsUint(16, actual_count)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3577 | ThrowClassFormatError(klass.Get(), "Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3578 | return false; |
| 3579 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3580 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3581 | CHECK_LE(actual_count, max_count); |
| 3582 | if (actual_count < max_count) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3583 | vtable.Assign(vtable->CopyOf(self, actual_count)); |
| 3584 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3585 | CHECK(self->IsExceptionPending()); // OOME. |
| 3586 | return false; |
| 3587 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3588 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3589 | klass->SetVTable(vtable.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3590 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3591 | CHECK(klass.Get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3592 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3593 | if (!IsUint(16, num_virtual_methods)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3594 | ThrowClassFormatError(klass.Get(), "Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3595 | return false; |
| 3596 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3597 | StackHandleScope<1> hs(self); |
| 3598 | Handle<mirror::ObjectArray<mirror::ArtMethod> > |
| 3599 | vtable(hs.NewHandle(AllocArtMethodArray(self, num_virtual_methods))); |
| 3600 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3601 | CHECK(self->IsExceptionPending()); // OOME. |
| 3602 | return false; |
| 3603 | } |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3604 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3605 | mirror::ArtMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3606 | vtable->Set<false>(i, virtual_method); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3607 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3608 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3609 | klass->SetVTable(vtable.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3610 | } |
| 3611 | return true; |
| 3612 | } |
| 3613 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3614 | bool ClassLinker::LinkInterfaceMethods(const Handle<mirror::Class>& klass, |
| 3615 | const Handle<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3616 | // Set the imt table to be all conflicts by default. |
| 3617 | klass->SetImTable(Runtime::Current()->GetDefaultImt()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3618 | size_t super_ifcount; |
| 3619 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3620 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3621 | } else { |
| 3622 | super_ifcount = 0; |
| 3623 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3624 | size_t ifcount = super_ifcount; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3625 | uint32_t num_interfaces; |
| 3626 | { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3627 | ClassHelper kh(klass.Get()); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3628 | num_interfaces = |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3629 | interfaces.Get() == nullptr ? kh.NumDirectInterfaces() : interfaces->GetLength(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3630 | ifcount += num_interfaces; |
| 3631 | for (size_t i = 0; i < num_interfaces; i++) { |
| 3632 | mirror::Class* interface = |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3633 | interfaces.Get() == nullptr ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3634 | ifcount += interface->GetIfTableCount(); |
| 3635 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3636 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3637 | if (ifcount == 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3638 | // Class implements no interfaces. |
| 3639 | DCHECK_EQ(klass->GetIfTableCount(), 0); |
| 3640 | DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3641 | return true; |
| 3642 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3643 | if (ifcount == super_ifcount) { |
| 3644 | // Class implements same interfaces as parent, are any of these not marker interfaces? |
| 3645 | bool has_non_marker_interface = false; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3646 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3647 | for (size_t i = 0; i < ifcount; ++i) { |
| 3648 | if (super_iftable->GetMethodArrayCount(i) > 0) { |
| 3649 | has_non_marker_interface = true; |
| 3650 | break; |
| 3651 | } |
| 3652 | } |
| 3653 | if (!has_non_marker_interface) { |
| 3654 | // Class just inherits marker interfaces from parent so recycle parent's iftable. |
| 3655 | klass->SetIfTable(super_iftable); |
| 3656 | return true; |
| 3657 | } |
| 3658 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3659 | Thread* self = Thread::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3660 | StackHandleScope<2> hs(self); |
| 3661 | Handle<mirror::IfTable> iftable(hs.NewHandle(AllocIfTable(self, ifcount))); |
| 3662 | if (UNLIKELY(iftable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3663 | CHECK(self->IsExceptionPending()); // OOME. |
| 3664 | return false; |
| 3665 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3666 | if (super_ifcount != 0) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3667 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3668 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3669 | mirror::Class* super_interface = super_iftable->GetInterface(i); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3670 | iftable->SetInterface(i, super_interface); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3671 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3672 | } |
| 3673 | // Flatten the interface inheritance hierarchy. |
| 3674 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3675 | for (size_t i = 0; i < num_interfaces; i++) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3676 | ClassHelper kh(klass.Get()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3677 | mirror::Class* interface = |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3678 | interfaces.Get() == nullptr ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3679 | DCHECK(interface != NULL); |
| 3680 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3681 | ClassHelper ih(interface); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3682 | ThrowIncompatibleClassChangeError(klass.Get(), "Class %s implements non-interface class %s", |
| 3683 | PrettyDescriptor(klass.Get()).c_str(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3684 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3685 | return false; |
| 3686 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3687 | // Check if interface is already in iftable |
| 3688 | bool duplicate = false; |
| 3689 | for (size_t j = 0; j < idx; j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3690 | mirror::Class* existing_interface = iftable->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3691 | if (existing_interface == interface) { |
| 3692 | duplicate = true; |
| 3693 | break; |
| 3694 | } |
| 3695 | } |
| 3696 | if (!duplicate) { |
| 3697 | // Add this non-duplicate interface. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3698 | iftable->SetInterface(idx++, interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3699 | // Add this interface's non-duplicate super-interfaces. |
| 3700 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3701 | mirror::Class* super_interface = interface->GetIfTable()->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3702 | bool super_duplicate = false; |
| 3703 | for (size_t k = 0; k < idx; k++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3704 | mirror::Class* existing_interface = iftable->GetInterface(k); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3705 | if (existing_interface == super_interface) { |
| 3706 | super_duplicate = true; |
| 3707 | break; |
| 3708 | } |
| 3709 | } |
| 3710 | if (!super_duplicate) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3711 | iftable->SetInterface(idx++, super_interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3712 | } |
| 3713 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3714 | } |
| 3715 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3716 | // Shrink iftable in case duplicates were found |
| 3717 | if (idx < ifcount) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3718 | iftable.Assign(down_cast<mirror::IfTable*>(iftable->CopyOf(self, idx * mirror::IfTable::kMax))); |
| 3719 | if (UNLIKELY(iftable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3720 | CHECK(self->IsExceptionPending()); // OOME. |
| 3721 | return false; |
| 3722 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3723 | ifcount = idx; |
| 3724 | } else { |
| 3725 | CHECK_EQ(idx, ifcount); |
| 3726 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3727 | klass->SetIfTable(iftable.Get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3728 | |
| 3729 | // 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] | 3730 | if (klass->IsInterface()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3731 | return true; |
| 3732 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3733 | // Allocate imtable |
| 3734 | bool imtable_changed = false; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3735 | Handle<mirror::ObjectArray<mirror::ArtMethod> > imtable( |
| 3736 | hs.NewHandle(AllocArtMethodArray(self, kImtSize))); |
| 3737 | if (UNLIKELY(imtable.Get() == NULL)) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3738 | CHECK(self->IsExceptionPending()); // OOME. |
| 3739 | return false; |
| 3740 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3741 | std::vector<mirror::ArtMethod*> miranda_list; |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3742 | for (size_t i = 0; i < ifcount; ++i) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3743 | size_t num_methods = iftable->GetInterface(i)->NumVirtualMethods(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3744 | if (num_methods > 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3745 | StackHandleScope<2> hs(self); |
| 3746 | Handle<mirror::ObjectArray<mirror::ArtMethod> > |
| 3747 | method_array(hs.NewHandle(AllocArtMethodArray(self, num_methods))); |
| 3748 | if (UNLIKELY(method_array.Get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3749 | CHECK(self->IsExceptionPending()); // OOME. |
| 3750 | return false; |
| 3751 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3752 | iftable->SetMethodArray(i, method_array.Get()); |
| 3753 | Handle<mirror::ObjectArray<mirror::ArtMethod> > vtable( |
| 3754 | hs.NewHandle(klass->GetVTableDuringLinking())); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3755 | for (size_t j = 0; j < num_methods; ++j) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3756 | mirror::ArtMethod* interface_method = iftable->GetInterface(i)->GetVirtualMethod(j); |
| 3757 | MethodHelper interface_mh(interface_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3758 | int32_t k; |
| 3759 | // For each method listed in the interface's method list, find the |
| 3760 | // matching method in our class's method list. We want to favor the |
| 3761 | // subclass over the superclass, which just requires walking |
| 3762 | // back from the end of the vtable. (This only matters if the |
| 3763 | // superclass defines a private method and this class redefines |
| 3764 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 3765 | // those don't end up in the virtual method table, so it shouldn't |
| 3766 | // matter which direction we go. We walk it backward anyway.) |
| 3767 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3768 | mirror::ArtMethod* vtable_method = vtable->Get(k); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3769 | MethodHelper vtable_mh(vtable_method); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3770 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Elliott Hughes | 6824361 | 2013-02-22 17:16:07 -0800 | [diff] [blame] | 3771 | if (!vtable_method->IsAbstract() && !vtable_method->IsPublic()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3772 | ThrowIllegalAccessError(klass.Get(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3773 | "Method '%s' implementing interface method '%s' is not public", |
| 3774 | PrettyMethod(vtable_method).c_str(), |
| 3775 | PrettyMethod(interface_method).c_str()); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3776 | return false; |
| 3777 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3778 | method_array->Set<false>(j, vtable_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3779 | // Place method in imt if entry is empty, place conflict otherwise. |
| 3780 | uint32_t imt_index = interface_method->GetDexMethodIndex() % kImtSize; |
| 3781 | if (imtable->Get(imt_index) == NULL) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3782 | imtable->Set<false>(imt_index, vtable_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3783 | imtable_changed = true; |
| 3784 | } else { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3785 | imtable->Set<false>(imt_index, Runtime::Current()->GetImtConflictMethod()); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3786 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3787 | break; |
| 3788 | } |
| 3789 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3790 | if (k < 0) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3791 | StackHandleScope<1> hs(self); |
| 3792 | auto miranda_method = hs.NewHandle<mirror::ArtMethod>(nullptr); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3793 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3794 | mirror::ArtMethod* mir_method = miranda_list[mir]; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3795 | MethodHelper vtable_mh(mir_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3796 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3797 | miranda_method.Assign(miranda_list[mir]); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3798 | break; |
| 3799 | } |
| 3800 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3801 | if (miranda_method.Get() == NULL) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3802 | // Point the interface table at a phantom slot. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3803 | miranda_method.Assign(down_cast<mirror::ArtMethod*>(interface_method->Clone(self))); |
| 3804 | if (UNLIKELY(miranda_method.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3805 | CHECK(self->IsExceptionPending()); // OOME. |
| 3806 | return false; |
| 3807 | } |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3808 | // 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] | 3809 | miranda_list.push_back(miranda_method.Get()); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3810 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3811 | method_array->Set<false>(j, miranda_method.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3812 | } |
| 3813 | } |
| 3814 | } |
| 3815 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3816 | if (imtable_changed) { |
| 3817 | // Fill in empty entries in interface method table with conflict. |
| 3818 | mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod(); |
| 3819 | for (size_t i = 0; i < kImtSize; i++) { |
| 3820 | if (imtable->Get(i) == NULL) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3821 | imtable->Set<false>(i, imt_conflict_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3822 | } |
| 3823 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3824 | klass->SetImTable(imtable.Get()); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3825 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3826 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3827 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3828 | int new_method_count = old_method_count + miranda_list.size(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3829 | mirror::ObjectArray<mirror::ArtMethod>* virtuals; |
| 3830 | if (old_method_count == 0) { |
| 3831 | virtuals = AllocArtMethodArray(self, new_method_count); |
| 3832 | } else { |
| 3833 | virtuals = klass->GetVirtualMethods()->CopyOf(self, new_method_count); |
| 3834 | } |
| 3835 | if (UNLIKELY(virtuals == NULL)) { |
| 3836 | CHECK(self->IsExceptionPending()); // OOME. |
| 3837 | return false; |
| 3838 | } |
| 3839 | klass->SetVirtualMethods(virtuals); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3840 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3841 | StackHandleScope<1> hs(self); |
| 3842 | Handle<mirror::ObjectArray<mirror::ArtMethod> > vtable( |
| 3843 | hs.NewHandle(klass->GetVTableDuringLinking())); |
| 3844 | CHECK(vtable.Get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3845 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3846 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3847 | vtable.Assign(vtable->CopyOf(self, new_vtable_count)); |
| 3848 | if (UNLIKELY(vtable.Get() == NULL)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3849 | CHECK(self->IsExceptionPending()); // OOME. |
| 3850 | return false; |
| 3851 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3852 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3853 | mirror::ArtMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3854 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 3855 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 3856 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 3857 | klass->SetVirtualMethod(old_method_count + i, method); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3858 | vtable->Set<false>(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3859 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3860 | // 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] | 3861 | klass->SetVTable(vtable.Get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3862 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3863 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3864 | mirror::ObjectArray<mirror::ArtMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3865 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 3866 | CHECK(vtable->Get(i) != NULL); |
| 3867 | } |
| 3868 | |
| 3869 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 3870 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3871 | return true; |
| 3872 | } |
| 3873 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3874 | bool ClassLinker::LinkInstanceFields(const Handle<mirror::Class>& klass) { |
| 3875 | CHECK(klass.Get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3876 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3877 | } |
| 3878 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3879 | bool ClassLinker::LinkStaticFields(const Handle<mirror::Class>& klass) { |
| 3880 | CHECK(klass.Get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3881 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3882 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3883 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3884 | return success; |
| 3885 | } |
| 3886 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3887 | struct LinkFieldsComparator { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3888 | explicit LinkFieldsComparator() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 3889 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3890 | // 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] | 3891 | bool operator()(mirror::ArtField* field1, mirror::ArtField* field2) |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3892 | NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3893 | // First come reference fields, then 64-bit, and finally 32-bit |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3894 | FieldHelper fh1(field1); |
| 3895 | Primitive::Type type1 = fh1.GetTypeAsPrimitiveType(); |
| 3896 | FieldHelper fh2(field2); |
| 3897 | Primitive::Type type2 = fh2.GetTypeAsPrimitiveType(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3898 | if (type1 != type2) { |
| 3899 | bool is_primitive1 = type1 != Primitive::kPrimNot; |
| 3900 | bool is_primitive2 = type2 != Primitive::kPrimNot; |
| 3901 | bool is64bit1 = is_primitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 3902 | bool is64bit2 = is_primitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
| 3903 | int order1 = !is_primitive1 ? 0 : (is64bit1 ? 1 : 2); |
| 3904 | int order2 = !is_primitive2 ? 0 : (is64bit2 ? 1 : 2); |
| 3905 | if (order1 != order2) { |
| 3906 | return order1 < order2; |
| 3907 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3908 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3909 | // same basic group? then sort by string. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3910 | const char* name1 = fh1.GetName(); |
| 3911 | const char* name2 = fh2.GetName(); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3912 | return strcmp(name1, name2) < 0; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3913 | } |
| 3914 | }; |
| 3915 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3916 | bool ClassLinker::LinkFields(const Handle<mirror::Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3917 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3918 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3919 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3920 | mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3921 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3922 | |
| 3923 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 3924 | size_t size; |
| 3925 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3926 | if (is_static) { |
| 3927 | size = klass->GetClassSize(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3928 | field_offset = mirror::Class::FieldsOffset(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3929 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3930 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3931 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3932 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3933 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3934 | } |
| 3935 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3936 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3937 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3938 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3939 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3940 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3941 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3942 | std::deque<mirror::ArtField*> grouped_and_sorted_fields; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3943 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3944 | mirror::ArtField* f = fields->Get(i); |
| 3945 | CHECK(f != NULL); |
| 3946 | grouped_and_sorted_fields.push_back(f); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3947 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3948 | std::sort(grouped_and_sorted_fields.begin(), grouped_and_sorted_fields.end(), |
| 3949 | LinkFieldsComparator()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3950 | |
| 3951 | // References should be at the front. |
| 3952 | size_t current_field = 0; |
| 3953 | size_t num_reference_fields = 0; |
| 3954 | for (; current_field < num_fields; current_field++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3955 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3956 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3957 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3958 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3959 | if (isPrimitive) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3960 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3961 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3962 | grouped_and_sorted_fields.pop_front(); |
| 3963 | num_reference_fields++; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3964 | fields->Set<false>(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3965 | field->SetOffset(field_offset); |
| 3966 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3967 | } |
| 3968 | |
| 3969 | // Now we want to pack all of the double-wide fields together. If |
| 3970 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 3971 | // 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] | 3972 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3973 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3974 | mirror::ArtField* field = grouped_and_sorted_fields[i]; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3975 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3976 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3977 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 3978 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3979 | continue; |
| 3980 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 3981 | fields->Set<false>(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3982 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3983 | // drop the consumed field |
| 3984 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 3985 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3986 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3987 | // whether we found a 32-bit field for padding or not, we advance |
| 3988 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3989 | } |
| 3990 | |
| 3991 | // Alignment is good, shuffle any double-wide fields forward, and |
| 3992 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3993 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3994 | while (!grouped_and_sorted_fields.empty()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3995 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3996 | grouped_and_sorted_fields.pop_front(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3997 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3998 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3999 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4000 | fields->Set<false>(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4001 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4002 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 4003 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4004 | ? sizeof(uint64_t) |
| 4005 | : sizeof(uint32_t))); |
| 4006 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4007 | } |
| 4008 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 4009 | // We lie to the GC about the java.lang.ref.Reference.referent field, so it doesn't scan it. |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 4010 | if (!is_static && |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4011 | (strcmp("Ljava/lang/ref/Reference;", ClassHelper(klass.Get()).GetDescriptor()) == 0)) { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 4012 | // We know there are no non-reference fields in the Reference classes, and we know |
| 4013 | // that 'referent' is alphabetically last, so this is easy... |
| 4014 | CHECK_EQ(num_reference_fields, num_fields); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4015 | FieldHelper fh(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 4016 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 4017 | --num_reference_fields; |
| 4018 | } |
| 4019 | |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4020 | if (kIsDebugBuild) { |
| 4021 | // Make sure that all reference fields appear before |
| 4022 | // non-reference fields, and all double-wide fields are aligned. |
| 4023 | bool seen_non_ref = false; |
| 4024 | for (size_t i = 0; i < num_fields; i++) { |
| 4025 | mirror::ArtField* field = fields->Get(i); |
| 4026 | if (false) { // enable to debug field layout |
| 4027 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4028 | << " class=" << PrettyClass(klass.Get()) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4029 | << " field=" << PrettyField(field) |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 4030 | << " offset=" |
| 4031 | << field->GetField32(MemberOffset(mirror::ArtField::OffsetOffset())); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4032 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4033 | FieldHelper fh(field); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4034 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
| 4035 | bool is_primitive = type != Primitive::kPrimNot; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4036 | if ((strcmp("Ljava/lang/ref/Reference;", ClassHelper(klass.Get()).GetDescriptor()) == 0) |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4037 | && (strcmp("referent", fh.GetName()) == 0)) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4038 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 4039 | } |
| 4040 | if (is_primitive) { |
| 4041 | if (!seen_non_ref) { |
| 4042 | seen_non_ref = true; |
| 4043 | DCHECK_EQ(num_reference_fields, i); |
| 4044 | } |
| 4045 | } else { |
| 4046 | DCHECK(!seen_non_ref); |
| 4047 | } |
| 4048 | } |
| 4049 | if (!seen_non_ref) { |
| 4050 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4051 | } |
| 4052 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4053 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4054 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4055 | if (is_static) { |
| 4056 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 4057 | klass->SetClassSize(size); |
| 4058 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4059 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 4060 | if (!klass->IsVariableSize()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4061 | DCHECK_GE(size, sizeof(mirror::Object)) << ClassHelper(klass.Get()).GetDescriptor(); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 4062 | size_t previous_size = klass->GetObjectSize(); |
| 4063 | if (previous_size != 0) { |
| 4064 | // Make sure that we didn't originally have an incorrect size. |
| 4065 | CHECK_EQ(previous_size, size); |
| 4066 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4067 | klass->SetObjectSize(size); |
| 4068 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4069 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4070 | return true; |
| 4071 | } |
| 4072 | |
| 4073 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 4074 | // list. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4075 | void ClassLinker::CreateReferenceInstanceOffsets(const Handle<mirror::Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4076 | uint32_t reference_offsets = 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4077 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4078 | if (super_class != NULL) { |
| 4079 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4080 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4081 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 4082 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4083 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4084 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4085 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4086 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4087 | } |
| 4088 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4089 | void ClassLinker::CreateReferenceStaticOffsets(const Handle<mirror::Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4090 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4091 | } |
| 4092 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4093 | void ClassLinker::CreateReferenceOffsets(const Handle<mirror::Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4094 | uint32_t reference_offsets) { |
| 4095 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4096 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 4097 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4098 | mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4099 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4100 | // All of the fields that contain object references are guaranteed |
| 4101 | // to be at the beginning of the fields list. |
| 4102 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 4103 | // Note that byte_offset is the offset from the beginning of |
| 4104 | // object, not the offset into instance data |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4105 | mirror::ArtField* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4106 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4107 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 4108 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 4109 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4110 | CHECK_NE(new_bit, 0U); |
| 4111 | reference_offsets |= new_bit; |
| 4112 | } else { |
| 4113 | reference_offsets = CLASS_WALK_SUPER; |
| 4114 | break; |
| 4115 | } |
| 4116 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4117 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4118 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4119 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4120 | } else { |
| 4121 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4122 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4123 | } |
| 4124 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4125 | mirror::String* ClassLinker::ResolveString(const DexFile& dex_file, uint32_t string_idx, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4126 | const Handle<mirror::DexCache>& dex_cache) { |
| 4127 | DCHECK(dex_cache.Get() != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4128 | mirror::String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4129 | if (resolved != NULL) { |
| 4130 | return resolved; |
| 4131 | } |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4132 | uint32_t utf16_length; |
| 4133 | const char* utf8_data = dex_file.StringDataAndUtf16LengthByIdx(string_idx, &utf16_length); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4134 | mirror::String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4135 | dex_cache->SetResolvedString(string_idx, string); |
| 4136 | return string; |
| 4137 | } |
| 4138 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4139 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4140 | mirror::Class* referrer) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4141 | StackHandleScope<2> hs(Thread::Current()); |
| 4142 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(referrer->GetDexCache())); |
| 4143 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(referrer->GetClassLoader())); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4144 | return ResolveType(dex_file, type_idx, dex_cache, class_loader); |
| 4145 | } |
| 4146 | |
| 4147 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4148 | const Handle<mirror::DexCache>& dex_cache, |
| 4149 | const Handle<mirror::ClassLoader>& class_loader) { |
| 4150 | DCHECK(dex_cache.Get() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4151 | mirror::Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4152 | if (resolved == NULL) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 4153 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 4154 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 4155 | resolved = FindClass(self, descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4156 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 4157 | // TODO: we used to throw here if resolved's class loader was not the |
| 4158 | // boot class loader. This was to permit different classes with the |
| 4159 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4160 | dex_cache->SetResolvedType(type_idx, resolved); |
| 4161 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4162 | CHECK(self->IsExceptionPending()) |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 4163 | << "Expected pending exception for failed resolution of: " << descriptor; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4164 | // Convert a ClassNotFoundException to a NoClassDefFoundError. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4165 | StackHandleScope<1> hs(self); |
| 4166 | Handle<mirror::Throwable> cause(hs.NewHandle(self->GetException(nullptr))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4167 | if (cause->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4168 | DCHECK(resolved == NULL); // No Handle needed to preserve resolved. |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 4169 | self->ClearException(); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4170 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4171 | self->GetException(NULL)->SetCause(cause.Get()); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4172 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4173 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4174 | } |
Brian Carlstrom | abcf7ae | 2013-09-23 22:19:52 -0700 | [diff] [blame] | 4175 | DCHECK((resolved == NULL) || resolved->IsResolved() || resolved->IsErroneous()) |
| 4176 | << PrettyDescriptor(resolved) << " " << resolved->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4177 | return resolved; |
| 4178 | } |
| 4179 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4180 | mirror::ArtMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4181 | uint32_t method_idx, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4182 | const Handle<mirror::DexCache>& dex_cache, |
| 4183 | const Handle<mirror::ClassLoader>& class_loader, |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4184 | mirror::ArtMethod* referrer, |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4185 | InvokeType type) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4186 | DCHECK(dex_cache.Get() != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4187 | // Check for hit in the dex cache. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4188 | mirror::ArtMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 4189 | if (resolved != NULL && !resolved->IsRuntimeMethod()) { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4190 | return resolved; |
| 4191 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4192 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4193 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4194 | 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] | 4195 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 4196 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4197 | return NULL; |
| 4198 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4199 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 4200 | // caches/files. |
| 4201 | switch (type) { |
| 4202 | case kDirect: // Fall-through. |
| 4203 | case kStatic: |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4204 | resolved = klass->FindDirectMethod(dex_cache.Get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4205 | break; |
| 4206 | case kInterface: |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4207 | resolved = klass->FindInterfaceMethod(dex_cache.Get(), method_idx); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4208 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4209 | break; |
| 4210 | case kSuper: // Fall-through. |
| 4211 | case kVirtual: |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4212 | resolved = klass->FindVirtualMethod(dex_cache.Get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4213 | break; |
| 4214 | default: |
| 4215 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4216 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4217 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4218 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4219 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4220 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4221 | switch (type) { |
| 4222 | case kDirect: // Fall-through. |
| 4223 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4224 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4225 | break; |
| 4226 | case kInterface: |
| 4227 | resolved = klass->FindInterfaceMethod(name, signature); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4228 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4229 | break; |
| 4230 | case kSuper: // Fall-through. |
| 4231 | case kVirtual: |
| 4232 | resolved = klass->FindVirtualMethod(name, signature); |
| 4233 | break; |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4234 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4235 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4236 | if (resolved != NULL) { |
| 4237 | // We found a method, check for incompatible class changes. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4238 | if (resolved->CheckIncompatibleClassChange(type)) { |
| 4239 | resolved = NULL; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4240 | } |
| 4241 | } |
| 4242 | if (resolved != NULL) { |
| 4243 | // Be a good citizen and update the dex cache to speed subsequent calls. |
| 4244 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 4245 | return resolved; |
| 4246 | } else { |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4247 | // We failed to find the method which means either an access error, an incompatible class |
| 4248 | // 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] | 4249 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4250 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4251 | switch (type) { |
| 4252 | case kDirect: |
| 4253 | case kStatic: |
| 4254 | resolved = klass->FindVirtualMethod(name, signature); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4255 | break; |
| 4256 | case kInterface: |
| 4257 | case kVirtual: |
| 4258 | case kSuper: |
| 4259 | resolved = klass->FindDirectMethod(name, signature); |
| 4260 | break; |
| 4261 | } |
| 4262 | |
| 4263 | // If we found something, check that it can be accessed by the referrer. |
| 4264 | if (resolved != NULL && referrer != NULL) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4265 | mirror::Class* methods_class = resolved->GetDeclaringClass(); |
| 4266 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4267 | if (!referring_class->CanAccess(methods_class)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4268 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 4269 | resolved, type); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4270 | return NULL; |
| 4271 | } else if (!referring_class->CanAccessMember(methods_class, |
| 4272 | resolved->GetAccessFlags())) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4273 | ThrowIllegalAccessErrorMethod(referring_class, resolved); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4274 | return NULL; |
| 4275 | } |
| 4276 | } |
| 4277 | |
| 4278 | // Otherwise, throw an IncompatibleClassChangeError if we found something, and check interface |
| 4279 | // methods and throw if we find the method there. If we find nothing, throw a NoSuchMethodError. |
| 4280 | switch (type) { |
| 4281 | case kDirect: |
| 4282 | case kStatic: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4283 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4284 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4285 | } else { |
| 4286 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4287 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4288 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4289 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4290 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4291 | } |
| 4292 | } |
| 4293 | break; |
| 4294 | case kInterface: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4295 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4296 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4297 | } else { |
| 4298 | resolved = klass->FindVirtualMethod(name, signature); |
| 4299 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4300 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4301 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4302 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4303 | } |
| 4304 | } |
| 4305 | break; |
| 4306 | case kSuper: |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4307 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4308 | break; |
| 4309 | case kVirtual: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4310 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4311 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4312 | } else { |
| 4313 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4314 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4315 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4316 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4317 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4318 | } |
| 4319 | } |
| 4320 | break; |
| 4321 | } |
| 4322 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4323 | return NULL; |
| 4324 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4325 | } |
| 4326 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4327 | mirror::ArtField* ClassLinker::ResolveField(const DexFile& dex_file, uint32_t field_idx, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4328 | const Handle<mirror::DexCache>& dex_cache, |
| 4329 | const Handle<mirror::ClassLoader>& class_loader, |
Brian Carlstrom | e810452 | 2013-10-15 21:56:36 -0700 | [diff] [blame] | 4330 | bool is_static) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4331 | DCHECK(dex_cache.Get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4332 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4333 | if (resolved != NULL) { |
| 4334 | return resolved; |
| 4335 | } |
| 4336 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4337 | mirror::Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4338 | if (klass == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 4339 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4340 | return NULL; |
| 4341 | } |
| 4342 | |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4343 | if (is_static) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4344 | resolved = klass->FindStaticField(dex_cache.Get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4345 | } else { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4346 | resolved = klass->FindInstanceField(dex_cache.Get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4347 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4348 | |
| 4349 | if (resolved == NULL) { |
| 4350 | const char* name = dex_file.GetFieldName(field_id); |
| 4351 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 4352 | if (is_static) { |
| 4353 | resolved = klass->FindStaticField(name, type); |
| 4354 | } else { |
| 4355 | resolved = klass->FindInstanceField(name, type); |
| 4356 | } |
| 4357 | if (resolved == NULL) { |
| 4358 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass, type, name); |
| 4359 | return NULL; |
| 4360 | } |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4361 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4362 | dex_cache->SetResolvedField(field_idx, resolved); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4363 | return resolved; |
| 4364 | } |
| 4365 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4366 | mirror::ArtField* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4367 | uint32_t field_idx, |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4368 | const Handle<mirror::DexCache>& dex_cache, |
| 4369 | const Handle<mirror::ClassLoader>& class_loader) { |
| 4370 | DCHECK(dex_cache.Get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4371 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4372 | if (resolved != NULL) { |
| 4373 | return resolved; |
| 4374 | } |
| 4375 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4376 | mirror::Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4377 | if (klass == NULL) { |
| 4378 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4379 | return NULL; |
| 4380 | } |
| 4381 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4382 | StringPiece name(dex_file.StringDataByIdx(field_id.name_idx_)); |
| 4383 | StringPiece type(dex_file.StringDataByIdx( |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4384 | dex_file.GetTypeId(field_id.type_idx_).descriptor_idx_)); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4385 | resolved = klass->FindField(name, type); |
| 4386 | if (resolved != NULL) { |
| 4387 | dex_cache->SetResolvedField(field_idx, resolved); |
| 4388 | } else { |
| 4389 | ThrowNoSuchFieldError("", klass, type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4390 | } |
| 4391 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 4392 | } |
| 4393 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4394 | const char* ClassLinker::MethodShorty(uint32_t method_idx, mirror::ArtMethod* referrer, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4395 | uint32_t* length) { |
| 4396 | mirror::Class* declaring_class = referrer->GetDeclaringClass(); |
| 4397 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 4398 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4399 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 4400 | return dex_file.GetMethodShorty(method_id, length); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4401 | } |
| 4402 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4403 | void ClassLinker::DumpAllClasses(int flags) { |
| 4404 | if (dex_cache_image_class_lookup_required_) { |
| 4405 | MoveImageClassesToClassTable(); |
| 4406 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4407 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 4408 | // 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] | 4409 | std::vector<mirror::Class*> all_classes; |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4410 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4411 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4412 | for (const std::pair<size_t, mirror::Class*>& it : class_table_) { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4413 | all_classes.push_back(it.second); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 4414 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4415 | } |
| 4416 | |
| 4417 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 4418 | all_classes[i]->DumpClass(std::cerr, flags); |
| 4419 | } |
| 4420 | } |
| 4421 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4422 | void ClassLinker::DumpForSigQuit(std::ostream& os) { |
| 4423 | if (dex_cache_image_class_lookup_required_) { |
| 4424 | MoveImageClassesToClassTable(); |
| 4425 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4426 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4427 | os << "Loaded classes: " << class_table_.size() << " allocated classes\n"; |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 4428 | } |
| 4429 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4430 | size_t ClassLinker::NumLoadedClasses() { |
| 4431 | if (dex_cache_image_class_lookup_required_) { |
| 4432 | MoveImageClassesToClassTable(); |
| 4433 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4434 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4435 | return class_table_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 4436 | } |
| 4437 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4438 | pid_t ClassLinker::GetClassesLockOwner() { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4439 | return Locks::classlinker_classes_lock_->GetExclusiveOwnerTid(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4440 | } |
| 4441 | |
| 4442 | pid_t ClassLinker::GetDexLockOwner() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4443 | return dex_lock_.GetExclusiveOwnerTid(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 4444 | } |
| 4445 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4446 | void ClassLinker::SetClassRoot(ClassRoot class_root, mirror::Class* klass) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4447 | DCHECK(!init_done_); |
| 4448 | |
| 4449 | DCHECK(klass != NULL); |
| 4450 | DCHECK(klass->GetClassLoader() == NULL); |
| 4451 | |
| 4452 | DCHECK(class_roots_ != NULL); |
| 4453 | DCHECK(class_roots_->Get(class_root) == NULL); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 4454 | class_roots_->Set<false>(class_root, klass); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4455 | } |
| 4456 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4457 | } // namespace art |