Elliott Hughes | 2faa5f1 | 2012-01-30 14:42:07 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 16 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 17 | #include "class_linker.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 18 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 19 | #include <fcntl.h> |
| 20 | #include <sys/file.h> |
| 21 | #include <sys/stat.h> |
Brian Carlstrom | dbf05b7 | 2011-12-15 00:55:24 -0800 | [diff] [blame] | 22 | #include <sys/types.h> |
| 23 | #include <sys/wait.h> |
| 24 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 25 | #include <deque> |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 26 | #include <string> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 27 | #include <utility> |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 28 | #include <vector> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 29 | |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 30 | #include "base/casts.h" |
Elliott Hughes | 07ed66b | 2012-12-12 18:34:25 -0800 | [diff] [blame] | 31 | #include "base/logging.h" |
Elliott Hughes | 1aa246d | 2012-12-13 09:29:36 -0800 | [diff] [blame] | 32 | #include "base/stl_util.h" |
Elliott Hughes | 7616005 | 2012-12-12 16:31:20 -0800 | [diff] [blame] | 33 | #include "base/unix_file/fd_file.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 34 | #include "class_linker-inl.h" |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame^] | 35 | #include "compiler_callbacks.h" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 36 | #include "debugger.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 37 | #include "dex_file-inl.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 38 | #include "gc/accounting/card_table-inl.h" |
| 39 | #include "gc/accounting/heap_bitmap.h" |
| 40 | #include "gc/heap.h" |
| 41 | #include "gc/space/image_space.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 42 | #include "intern_table.h" |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 43 | #include "interpreter/interpreter.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 44 | #include "leb128.h" |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 45 | #include "oat.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 46 | #include "oat_file.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 47 | #include "mirror/art_field-inl.h" |
| 48 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 49 | #include "mirror/class.h" |
| 50 | #include "mirror/class-inl.h" |
| 51 | #include "mirror/class_loader.h" |
Ian Rogers | 39ebcb8 | 2013-05-30 16:57:23 -0700 | [diff] [blame] | 52 | #include "mirror/dex_cache-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 53 | #include "mirror/iftable-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 54 | #include "mirror/object-inl.h" |
| 55 | #include "mirror/object_array-inl.h" |
| 56 | #include "mirror/proxy.h" |
| 57 | #include "mirror/stack_trace_element.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 58 | #include "object_utils.h" |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 59 | #include "os.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 60 | #include "runtime.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 61 | #include "entrypoints/entrypoint_utils.h" |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 62 | #include "ScopedLocalRef.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 63 | #include "scoped_thread_state_change.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 64 | #include "sirt_ref.h" |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 65 | #include "stack_indirect_reference_table.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 66 | #include "thread.h" |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 67 | #include "UniquePtr.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 68 | #include "utils.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 69 | #include "verifier/method_verifier.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 70 | #include "well_known_classes.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 71 | |
| 72 | namespace art { |
| 73 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 74 | static void ThrowNoClassDefFoundError(const char* fmt, ...) |
| 75 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 76 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 77 | static void ThrowNoClassDefFoundError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 78 | va_list args; |
| 79 | va_start(args, fmt); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 80 | Thread* self = Thread::Current(); |
| 81 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 82 | self->ThrowNewExceptionV(throw_location, "Ljava/lang/NoClassDefFoundError;", fmt, args); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 83 | va_end(args); |
| 84 | } |
| 85 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 86 | static void ThrowEarlierClassFailure(mirror::Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 87 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 88 | // The class failed to initialize on a previous attempt, so we want to throw |
| 89 | // a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 90 | // failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 91 | // the previous error. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 92 | if (!Runtime::Current()->IsCompiler()) { // Give info if this occurs at runtime. |
| 93 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 94 | } |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 95 | |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 96 | CHECK(c->IsErroneous()) << PrettyClass(c) << " " << c->GetStatus(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 97 | Thread* self = Thread::Current(); |
| 98 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 99 | if (c->GetVerifyErrorClass() != NULL) { |
| 100 | // 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] | 101 | ClassHelper ve_ch(c->GetVerifyErrorClass()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 102 | self->ThrowNewException(throw_location, ve_ch.GetDescriptor(), PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 103 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 104 | self->ThrowNewException(throw_location, "Ljava/lang/NoClassDefFoundError;", |
| 105 | PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 106 | } |
| 107 | } |
| 108 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 109 | static void WrapExceptionInInitializer() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 110 | Thread* self = Thread::Current(); |
| 111 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 112 | |
| 113 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 114 | CHECK(cause.get() != NULL); |
| 115 | |
| 116 | env->ExceptionClear(); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 117 | bool is_error = env->IsInstanceOf(cause.get(), WellKnownClasses::java_lang_Error); |
| 118 | env->Throw(cause.get()); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 119 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 120 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 121 | if (!is_error) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 122 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 123 | self->ThrowNewWrappedException(throw_location, "Ljava/lang/ExceptionInInitializerError;", NULL); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 124 | } |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 125 | } |
| 126 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 127 | static size_t Hash(const char* s) { |
| 128 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 129 | size_t hash = 0; |
| 130 | for (; *s != '\0'; ++s) { |
| 131 | hash = hash * 31 + *s; |
| 132 | } |
| 133 | return hash; |
| 134 | } |
| 135 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 136 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 137 | "Ljava/lang/Class;", |
| 138 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 139 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 140 | "[Ljava/lang/Object;", |
| 141 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 142 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 143 | "Ljava/lang/ref/Reference;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 144 | "Ljava/lang/reflect/ArtField;", |
| 145 | "Ljava/lang/reflect/ArtMethod;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 146 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 147 | "[Ljava/lang/String;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 148 | "[Ljava/lang/reflect/ArtField;", |
| 149 | "[Ljava/lang/reflect/ArtMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 150 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 151 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 152 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 153 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 154 | "Z", |
| 155 | "B", |
| 156 | "C", |
| 157 | "D", |
| 158 | "F", |
| 159 | "I", |
| 160 | "J", |
| 161 | "S", |
| 162 | "V", |
| 163 | "[Z", |
| 164 | "[B", |
| 165 | "[C", |
| 166 | "[D", |
| 167 | "[F", |
| 168 | "[I", |
| 169 | "[J", |
| 170 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 171 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 172 | }; |
| 173 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 174 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 175 | // dex_lock_ is recursive as it may be used in stack dumping. |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 176 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel), |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 177 | dex_cache_image_class_lookup_required_(false), |
| 178 | failed_dex_cache_class_lookups_(0), |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 179 | class_roots_(NULL), |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 180 | array_iftable_(NULL), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 181 | init_done_(false), |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 182 | dex_caches_dirty_(false), |
| 183 | class_table_dirty_(false), |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 184 | intern_table_(intern_table), |
| 185 | portable_resolution_trampoline_(NULL), |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 186 | quick_resolution_trampoline_(NULL), |
| 187 | portable_imt_conflict_trampoline_(NULL), |
| 188 | quick_imt_conflict_trampoline_(NULL) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 189 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 190 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 191 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 192 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 193 | VLOG(startup) << "ClassLinker::Init"; |
| 194 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 195 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 196 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 197 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 198 | // java_lang_Class comes first, it's needed for AllocClass |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 199 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 200 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 201 | // The GC can't handle an object with a null class since we can't get the size of this object. |
| 202 | heap->IncrementDisableGC(self); |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 203 | SirtRef<mirror::Class> java_lang_Class(self, down_cast<mirror::Class*>( |
| 204 | heap->AllocNonMovableObject<true>(self, nullptr, sizeof(mirror::ClassClass)))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 205 | CHECK(java_lang_Class.get() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 206 | mirror::Class::SetClassClass(java_lang_Class.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 207 | java_lang_Class->SetClass(java_lang_Class.get()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 208 | java_lang_Class->SetClassSize(sizeof(mirror::ClassClass)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 209 | heap->DecrementDisableGC(self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 210 | // AllocClass(mirror::Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 211 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 212 | // Class[] is used for reflection support. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 213 | SirtRef<mirror::Class> class_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 214 | class_array_class->SetComponentType(java_lang_Class.get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 215 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 216 | // java_lang_Object comes next so that object_array_class can be created. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 217 | SirtRef<mirror::Class> java_lang_Object(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 218 | CHECK(java_lang_Object.get() != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 219 | // backfill Object as the super class of Class. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 220 | java_lang_Class->SetSuperClass(java_lang_Object.get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 221 | java_lang_Object->SetStatus(mirror::Class::kStatusLoaded, self); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 222 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 223 | // Object[] next to hold class roots. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 224 | SirtRef<mirror::Class> object_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 225 | object_array_class->SetComponentType(java_lang_Object.get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 226 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 227 | // Setup the char class to be used for char[]. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 228 | SirtRef<mirror::Class> char_class(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::Class))); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 229 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 230 | // Setup the char[] class to be used for String. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 231 | SirtRef<mirror::Class> char_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 232 | char_array_class->SetComponentType(char_class.get()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 233 | mirror::CharArray::SetArrayClass(char_array_class.get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 234 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 235 | // Setup String. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 236 | SirtRef<mirror::Class> java_lang_String(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::StringClass))); |
| 237 | mirror::String::SetClass(java_lang_String.get()); |
| 238 | java_lang_String->SetObjectSize(sizeof(mirror::String)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 239 | java_lang_String->SetStatus(mirror::Class::kStatusResolved, self); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 240 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 241 | // Create storage for root classes, save away our work so far (requires descriptors). |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 242 | class_roots_ = mirror::ObjectArray<mirror::Class>::Alloc(self, object_array_class.get(), |
| 243 | kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 244 | CHECK(class_roots_ != NULL); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 245 | SetClassRoot(kJavaLangClass, java_lang_Class.get()); |
| 246 | SetClassRoot(kJavaLangObject, java_lang_Object.get()); |
| 247 | SetClassRoot(kClassArrayClass, class_array_class.get()); |
| 248 | SetClassRoot(kObjectArrayClass, object_array_class.get()); |
| 249 | SetClassRoot(kCharArrayClass, char_array_class.get()); |
| 250 | SetClassRoot(kJavaLangString, java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 251 | |
| 252 | // Setup the primitive type classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 253 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(self, Primitive::kPrimBoolean)); |
| 254 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(self, Primitive::kPrimByte)); |
| 255 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(self, Primitive::kPrimShort)); |
| 256 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(self, Primitive::kPrimInt)); |
| 257 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(self, Primitive::kPrimLong)); |
| 258 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(self, Primitive::kPrimFloat)); |
| 259 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(self, Primitive::kPrimDouble)); |
| 260 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(self, Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 261 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 262 | // Create array interface entries to populate once we can load system classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 263 | array_iftable_ = AllocIfTable(self, 2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 264 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 265 | // Create int array type for AllocDexCache (done in AppendToBootClassPath). |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 266 | SirtRef<mirror::Class> int_array_class(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::Class))); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 267 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 268 | mirror::IntArray::SetArrayClass(int_array_class.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 269 | SetClassRoot(kIntArrayClass, int_array_class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 270 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 271 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 272 | |
Ian Rogers | 52813c9 | 2012-10-11 11:50:38 -0700 | [diff] [blame] | 273 | // Set up DexCache. This cannot be done later since AppendToBootClassPath calls AllocDexCache. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 274 | SirtRef<mirror::Class> |
| 275 | java_lang_DexCache(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::DexCacheClass))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 276 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.get()); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 277 | java_lang_DexCache->SetObjectSize(sizeof(mirror::DexCache)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 278 | java_lang_DexCache->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 279 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 280 | // Constructor, Field, Method, and AbstractMethod are necessary so that FindClass can link members. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 281 | SirtRef<mirror::Class> java_lang_reflect_ArtField(self, AllocClass(self, java_lang_Class.get(), |
| 282 | sizeof(mirror::ArtFieldClass))); |
| 283 | CHECK(java_lang_reflect_ArtField.get() != NULL); |
| 284 | java_lang_reflect_ArtField->SetObjectSize(sizeof(mirror::ArtField)); |
| 285 | SetClassRoot(kJavaLangReflectArtField, java_lang_reflect_ArtField.get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 286 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusResolved, self); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 287 | mirror::ArtField::SetClass(java_lang_reflect_ArtField.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 288 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 289 | SirtRef<mirror::Class> java_lang_reflect_ArtMethod(self, AllocClass(self, java_lang_Class.get(), |
| 290 | sizeof(mirror::ArtMethodClass))); |
| 291 | CHECK(java_lang_reflect_ArtMethod.get() != NULL); |
| 292 | java_lang_reflect_ArtMethod->SetObjectSize(sizeof(mirror::ArtMethod)); |
| 293 | SetClassRoot(kJavaLangReflectArtMethod, java_lang_reflect_ArtMethod.get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 294 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 295 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 296 | mirror::ArtMethod::SetClass(java_lang_reflect_ArtMethod.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 297 | |
| 298 | // Set up array classes for string, field, method |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 299 | SirtRef<mirror::Class> object_array_string(self, AllocClass(self, java_lang_Class.get(), |
| 300 | sizeof(mirror::Class))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 301 | object_array_string->SetComponentType(java_lang_String.get()); |
| 302 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.get()); |
| 303 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 304 | SirtRef<mirror::Class> object_array_art_method(self, AllocClass(self, java_lang_Class.get(), |
| 305 | sizeof(mirror::Class))); |
| 306 | object_array_art_method->SetComponentType(java_lang_reflect_ArtMethod.get()); |
| 307 | SetClassRoot(kJavaLangReflectArtMethodArrayClass, object_array_art_method.get()); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 308 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 309 | SirtRef<mirror::Class> object_array_art_field(self, AllocClass(self, java_lang_Class.get(), |
| 310 | sizeof(mirror::Class))); |
| 311 | object_array_art_field->SetComponentType(java_lang_reflect_ArtField.get()); |
| 312 | SetClassRoot(kJavaLangReflectArtFieldArrayClass, object_array_art_field.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 313 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 314 | // Setup boot_class_path_ and register class_path now that we can use AllocObjectArray to create |
| 315 | // DexCache instances. Needs to be after String, Field, Method arrays since AllocDexCache uses |
| 316 | // these roots. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 317 | CHECK_NE(0U, boot_class_path.size()); |
| 318 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 319 | const DexFile* dex_file = boot_class_path[i]; |
| 320 | CHECK(dex_file != NULL); |
| 321 | AppendToBootClassPath(*dex_file); |
| 322 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 323 | |
| 324 | // now we can use FindSystemClass |
| 325 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 326 | // run char class through InitializePrimitiveClass to finish init |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 327 | InitializePrimitiveClass(char_class.get(), Primitive::kPrimChar); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 328 | SetClassRoot(kPrimitiveChar, char_class.get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 329 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 330 | // Create runtime resolution and imt conflict methods. Also setup the default imt. |
| 331 | Runtime* runtime = Runtime::Current(); |
| 332 | runtime->SetResolutionMethod(runtime->CreateResolutionMethod()); |
| 333 | runtime->SetImtConflictMethod(runtime->CreateImtConflictMethod()); |
| 334 | runtime->SetDefaultImt(runtime->CreateDefaultImt(this)); |
| 335 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 336 | // 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] | 337 | java_lang_Object->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 338 | mirror::Class* Object_class = FindSystemClass("Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 339 | CHECK_EQ(java_lang_Object.get(), Object_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 340 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(mirror::Object)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 341 | java_lang_String->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 342 | mirror::Class* String_class = FindSystemClass("Ljava/lang/String;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 343 | CHECK_EQ(java_lang_String.get(), String_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 344 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(mirror::String)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 345 | java_lang_DexCache->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 346 | mirror::Class* DexCache_class = FindSystemClass("Ljava/lang/DexCache;"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 347 | CHECK_EQ(java_lang_String.get(), String_class); |
| 348 | CHECK_EQ(java_lang_DexCache.get(), DexCache_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 349 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), sizeof(mirror::DexCache)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 350 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 351 | // Setup the primitive array type classes - can't be done until Object has a vtable. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 352 | SetClassRoot(kBooleanArrayClass, FindSystemClass("[Z")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 353 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 354 | |
| 355 | SetClassRoot(kByteArrayClass, FindSystemClass("[B")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 356 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 357 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 358 | mirror::Class* found_char_array_class = FindSystemClass("[C"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 359 | CHECK_EQ(char_array_class.get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 360 | |
| 361 | SetClassRoot(kShortArrayClass, FindSystemClass("[S")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 362 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 363 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 364 | mirror::Class* found_int_array_class = FindSystemClass("[I"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 365 | CHECK_EQ(int_array_class.get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 366 | |
| 367 | SetClassRoot(kLongArrayClass, FindSystemClass("[J")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 368 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 369 | |
| 370 | SetClassRoot(kFloatArrayClass, FindSystemClass("[F")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 371 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 372 | |
| 373 | SetClassRoot(kDoubleArrayClass, FindSystemClass("[D")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 374 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 375 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 376 | mirror::Class* found_class_array_class = FindSystemClass("[Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 377 | CHECK_EQ(class_array_class.get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 378 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 379 | mirror::Class* found_object_array_class = FindSystemClass("[Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 380 | CHECK_EQ(object_array_class.get(), found_object_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 381 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 382 | // Setup the single, global copy of "iftable". |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 383 | mirror::Class* java_lang_Cloneable = FindSystemClass("Ljava/lang/Cloneable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 384 | CHECK(java_lang_Cloneable != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 385 | mirror::Class* java_io_Serializable = FindSystemClass("Ljava/io/Serializable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 386 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 387 | // We assume that Cloneable/Serializable don't have superinterfaces -- normally we'd have to |
| 388 | // crawl up and explicitly list all of the supers as well. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 389 | array_iftable_->SetInterface(0, java_lang_Cloneable); |
| 390 | array_iftable_->SetInterface(1, java_io_Serializable); |
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 | // Sanity check Class[] and Object[]'s interfaces. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 393 | ClassHelper kh(class_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 394 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 395 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 396 | kh.ChangeClass(object_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 397 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 398 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 399 | // Run Class, ArtField, and ArtMethod through FindSystemClass. This initializes their |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 400 | // dex_cache_ fields and register them in class_table_. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 401 | mirror::Class* Class_class = FindSystemClass("Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 402 | CHECK_EQ(java_lang_Class.get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 403 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 404 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusNotReady, self); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 405 | mirror::Class* Art_method_class = FindSystemClass("Ljava/lang/reflect/ArtMethod;"); |
| 406 | CHECK_EQ(java_lang_reflect_ArtMethod.get(), Art_method_class); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 407 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 408 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusNotReady, self); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 409 | mirror::Class* Art_field_class = FindSystemClass("Ljava/lang/reflect/ArtField;"); |
| 410 | CHECK_EQ(java_lang_reflect_ArtField.get(), Art_field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 411 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 412 | mirror::Class* String_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangStringArrayClass]); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 413 | CHECK_EQ(object_array_string.get(), String_array_class); |
| 414 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 415 | mirror::Class* Art_method_array_class = |
| 416 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]); |
| 417 | CHECK_EQ(object_array_art_method.get(), Art_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 418 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 419 | mirror::Class* Art_field_array_class = |
| 420 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]); |
| 421 | CHECK_EQ(object_array_art_field.get(), Art_field_array_class); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 422 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 423 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 424 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 425 | // Create java.lang.reflect.Proxy root. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 426 | mirror::Class* java_lang_reflect_Proxy = FindSystemClass("Ljava/lang/reflect/Proxy;"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 427 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 428 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 429 | // java.lang.ref classes need to be specially flagged, but otherwise are normal classes |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 430 | mirror::Class* java_lang_ref_Reference = FindSystemClass("Ljava/lang/ref/Reference;"); |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 431 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 432 | mirror::Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 433 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 434 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 435 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 436 | mirror::Class* java_lang_ref_PhantomReference = FindSystemClass("Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 437 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 438 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 439 | kAccClassIsReference | kAccClassIsPhantomReference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 440 | mirror::Class* java_lang_ref_SoftReference = FindSystemClass("Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 441 | java_lang_ref_SoftReference->SetAccessFlags( |
| 442 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 443 | mirror::Class* java_lang_ref_WeakReference = FindSystemClass("Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 444 | java_lang_ref_WeakReference->SetAccessFlags( |
| 445 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 446 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 447 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 448 | // Setup the ClassLoader, verifying the object_size_. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 449 | mirror::Class* java_lang_ClassLoader = FindSystemClass("Ljava/lang/ClassLoader;"); |
| 450 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(mirror::ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 451 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 452 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 453 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 454 | // java.lang.StackTraceElement as a convenience. |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 455 | SetClassRoot(kJavaLangThrowable, FindSystemClass("Ljava/lang/Throwable;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 456 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 457 | SetClassRoot(kJavaLangClassNotFoundException, FindSystemClass("Ljava/lang/ClassNotFoundException;")); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 458 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass("Ljava/lang/StackTraceElement;")); |
| 459 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass("[Ljava/lang/StackTraceElement;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 460 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 461 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 462 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 463 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 464 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | void ClassLinker::FinishInit() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 468 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 469 | |
| 470 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 471 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 472 | // as the types of the field can't be resolved prior to the runtime being |
| 473 | // fully initialized |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 474 | mirror::Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 475 | mirror::Class* java_lang_ref_FinalizerReference = |
| 476 | FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 477 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 478 | mirror::ArtField* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 479 | FieldHelper fh(pendingNext); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 480 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 481 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/Reference;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 482 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 483 | mirror::ArtField* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 484 | fh.ChangeField(queue); |
| 485 | CHECK_STREQ(fh.GetName(), "queue"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 486 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 487 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 488 | mirror::ArtField* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 489 | fh.ChangeField(queueNext); |
| 490 | CHECK_STREQ(fh.GetName(), "queueNext"); |
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* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 494 | fh.ChangeField(referent); |
| 495 | CHECK_STREQ(fh.GetName(), "referent"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 496 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/Object;"); |
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* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 499 | fh.ChangeField(zombie); |
| 500 | CHECK_STREQ(fh.GetName(), "zombie"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 501 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/Object;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 502 | |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 503 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 504 | heap->SetReferenceOffsets(referent->GetOffset(), |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 505 | queue->GetOffset(), |
| 506 | queueNext->GetOffset(), |
| 507 | pendingNext->GetOffset(), |
| 508 | zombie->GetOffset()); |
| 509 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 510 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 511 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 512 | ClassRoot class_root = static_cast<ClassRoot>(i); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 513 | mirror::Class* klass = GetClassRoot(class_root); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 514 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 515 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 516 | // note SetClassRoot does additional validation. |
| 517 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 518 | } |
| 519 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 520 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 521 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 522 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 523 | // that Object, Class, and Object[] are setup |
| 524 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 525 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 526 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 527 | } |
| 528 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 529 | void ClassLinker::RunRootClinits() { |
| 530 | Thread* self = Thread::Current(); |
| 531 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 532 | mirror::Class* c = GetClassRoot(ClassRoot(i)); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 533 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 534 | SirtRef<mirror::Class> sirt_class(self, GetClassRoot(ClassRoot(i))); |
| 535 | EnsureInitialized(sirt_class, true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 536 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 537 | } |
| 538 | } |
| 539 | } |
| 540 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 541 | bool ClassLinker::GenerateOatFile(const char* dex_filename, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 542 | int oat_fd, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 543 | const char* oat_cache_filename) { |
| 544 | Locks::mutator_lock_->AssertNotHeld(Thread::Current()); // Avoid starving GC. |
Brian Carlstrom | a56fcd6 | 2012-02-04 21:23:01 -0800 | [diff] [blame] | 545 | std::string dex2oat_string(GetAndroidRoot()); |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 546 | dex2oat_string += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 547 | const char* dex2oat = dex2oat_string.c_str(); |
| 548 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 549 | const char* class_path = Runtime::Current()->GetClassPathString().c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 550 | |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 551 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 552 | std::string boot_image_option_string("--boot-image="); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 553 | boot_image_option_string += heap->GetImageSpace()->GetImageFilename(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 554 | const char* boot_image_option = boot_image_option_string.c_str(); |
| 555 | |
| 556 | std::string dex_file_option_string("--dex-file="); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 557 | dex_file_option_string += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 558 | const char* dex_file_option = dex_file_option_string.c_str(); |
| 559 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 560 | std::string oat_fd_option_string("--oat-fd="); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 561 | StringAppendF(&oat_fd_option_string, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 562 | const char* oat_fd_option = oat_fd_option_string.c_str(); |
| 563 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 564 | std::string oat_location_option_string("--oat-location="); |
| 565 | oat_location_option_string += oat_cache_filename; |
| 566 | const char* oat_location_option = oat_location_option_string.c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 567 | |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 568 | std::string oat_compiler_filter_string("-compiler-filter:"); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 569 | Runtime::CompilerFilter filter = Runtime::Current()->GetCompilerFilter(); |
| 570 | switch (filter) { |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 571 | case Runtime::kInterpretOnly: |
| 572 | oat_compiler_filter_string += "interpret-only"; |
| 573 | break; |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 574 | case Runtime::kSpace: |
| 575 | oat_compiler_filter_string += "space"; |
| 576 | break; |
| 577 | case Runtime::kBalanced: |
| 578 | oat_compiler_filter_string += "balanced"; |
| 579 | break; |
| 580 | case Runtime::kSpeed: |
| 581 | oat_compiler_filter_string += "speed"; |
| 582 | break; |
buzbee | fe9ca40 | 2013-08-21 09:48:11 -0700 | [diff] [blame] | 583 | case Runtime::kEverything: |
| 584 | oat_compiler_filter_string += "everything"; |
| 585 | break; |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 586 | default: |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 587 | LOG(FATAL) << "Unexpected case: " << filter; |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 588 | } |
| 589 | const char* oat_compiler_filter_option = oat_compiler_filter_string.c_str(); |
| 590 | |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 591 | // fork and exec dex2oat |
| 592 | pid_t pid = fork(); |
| 593 | if (pid == 0) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 594 | // no allocation allowed between fork and exec |
Ian Rogers | 725aee5 | 2012-01-11 11:56:56 -0800 | [diff] [blame] | 595 | |
| 596 | // change process groups, so we don't get reaped by ProcessManager |
| 597 | setpgid(0, 0); |
| 598 | |
Brian Carlstrom | b00309f | 2013-09-30 14:23:30 -0700 | [diff] [blame] | 599 | // gLogVerbosity.class_linker = true; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 600 | VLOG(class_linker) << dex2oat |
| 601 | << " --runtime-arg -Xms64m" |
| 602 | << " --runtime-arg -Xmx64m" |
| 603 | << " --runtime-arg -classpath" |
| 604 | << " --runtime-arg " << class_path |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 605 | << " --runtime-arg " << oat_compiler_filter_option |
Brian Carlstrom | 265091e | 2013-01-30 14:08:26 -0800 | [diff] [blame] | 606 | #if !defined(ART_TARGET) |
| 607 | << " --host" |
| 608 | #endif |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 609 | << " " << boot_image_option |
| 610 | << " " << dex_file_option |
| 611 | << " " << oat_fd_option |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 612 | << " " << oat_location_option; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 613 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 614 | execl(dex2oat, dex2oat, |
jeffhao | 5d84040 | 2011-10-24 17:09:45 -0700 | [diff] [blame] | 615 | "--runtime-arg", "-Xms64m", |
| 616 | "--runtime-arg", "-Xmx64m", |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 617 | "--runtime-arg", "-classpath", |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 618 | "--runtime-arg", class_path, |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 619 | "--runtime-arg", oat_compiler_filter_option, |
Brian Carlstrom | 265091e | 2013-01-30 14:08:26 -0800 | [diff] [blame] | 620 | #if !defined(ART_TARGET) |
| 621 | "--host", |
| 622 | #endif |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 623 | boot_image_option, |
| 624 | dex_file_option, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 625 | oat_fd_option, |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 626 | oat_location_option, |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 627 | NULL); |
| 628 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 629 | PLOG(FATAL) << "execl(" << dex2oat << ") failed"; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 630 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 631 | } else { |
| 632 | // wait for dex2oat to finish |
| 633 | int status; |
| 634 | pid_t got_pid = TEMP_FAILURE_RETRY(waitpid(pid, &status, 0)); |
| 635 | if (got_pid != pid) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 636 | ScopedObjectAccess soa(Thread::Current()); |
| 637 | ThrowIOException("Failed to create oat file. Waitpid failed: wanted %d, got %d", pid, |
| 638 | got_pid); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 639 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 640 | } |
| 641 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 642 | ScopedObjectAccess soa(Thread::Current()); |
| 643 | ThrowIOException("Failed to create oat file. %s failed with dex-file '%s'", dex2oat, |
| 644 | dex_filename); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 645 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 646 | } |
| 647 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 648 | return true; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 649 | } |
| 650 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 651 | const OatFile* ClassLinker::RegisterOatFile(const OatFile* oat_file) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 652 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 653 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 654 | if (UNLIKELY(oat_file->GetLocation() == oat_files_[i]->GetLocation())) { |
| 655 | VLOG(class_linker) << "Attempt to register oat file that's already registered: " |
| 656 | << oat_file->GetLocation(); |
| 657 | for (size_t j = i; j < oat_files_.size(); ++j) { |
| 658 | CHECK_NE(oat_file, oat_files_[j]) << "Attempt to re-register dex file."; |
| 659 | } |
| 660 | delete oat_file; |
| 661 | return oat_files_[i]; |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 662 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 663 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 664 | VLOG(class_linker) << "Registering " << oat_file->GetLocation(); |
| 665 | oat_files_.push_back(oat_file); |
| 666 | return oat_file; |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 667 | } |
| 668 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 669 | OatFile& ClassLinker::GetImageOatFile(gc::space::ImageSpace* space) { |
| 670 | VLOG(startup) << "ClassLinker::GetImageOatFile entering"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 671 | OatFile* oat_file = space->ReleaseOatFile(); |
| 672 | CHECK_EQ(RegisterOatFile(oat_file), oat_file); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 673 | VLOG(startup) << "ClassLinker::GetImageOatFile exiting"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 674 | return *oat_file; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 675 | } |
| 676 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 677 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 678 | const char* dex_location = dex_file.GetLocation().c_str(); |
| 679 | uint32_t dex_location_checksum = dex_file.GetLocationChecksum(); |
| 680 | return FindOpenedOatFileFromDexLocation(dex_location, &dex_location_checksum); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 681 | } |
| 682 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 683 | const OatFile* ClassLinker::FindOpenedOatFileFromDexLocation(const char* dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 684 | const uint32_t* const dex_location_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 685 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 686 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 687 | const OatFile* oat_file = oat_files_[i]; |
| 688 | DCHECK(oat_file != NULL); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 689 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 690 | dex_location_checksum, |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 691 | false); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 692 | if (oat_dex_file != NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 693 | return oat_file; |
| 694 | } |
| 695 | } |
| 696 | return NULL; |
| 697 | } |
| 698 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 699 | const DexFile* ClassLinker::FindDexFileInOatLocation(const char* dex_location, |
Ian Rogers | e3359f7 | 2013-06-11 15:14:11 -0700 | [diff] [blame] | 700 | uint32_t dex_location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 701 | const char* oat_location, |
| 702 | std::string* error_msg) { |
Brian Carlstrom | f1d3455 | 2013-07-12 20:22:23 -0700 | [diff] [blame] | 703 | UniquePtr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 704 | !Runtime::Current()->IsCompiler(), |
| 705 | error_msg)); |
| 706 | if (oat_file.get() == nullptr) { |
| 707 | *error_msg = StringPrintf("Failed to find existing oat file at %s: %s", oat_location, |
| 708 | error_msg->c_str()); |
| 709 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 710 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 711 | Runtime* runtime = Runtime::Current(); |
| 712 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 713 | uint32_t expected_image_oat_checksum = image_header.GetOatChecksum(); |
| 714 | uint32_t actual_image_oat_checksum = oat_file->GetOatHeader().GetImageFileLocationOatChecksum(); |
| 715 | if (expected_image_oat_checksum != actual_image_oat_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 716 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat checksum of " |
| 717 | "0x%x, found 0x%x", oat_location, expected_image_oat_checksum, |
| 718 | actual_image_oat_checksum); |
| 719 | return nullptr; |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 720 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 721 | |
| 722 | uint32_t expected_image_oat_offset = reinterpret_cast<uint32_t>(image_header.GetOatDataBegin()); |
| 723 | uint32_t actual_image_oat_offset = oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(); |
| 724 | if (expected_image_oat_offset != actual_image_oat_offset) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 725 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat offset %ud, " |
| 726 | "found %ud", oat_location, expected_image_oat_offset, |
| 727 | actual_image_oat_offset); |
| 728 | return nullptr; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 729 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 730 | // TODO: this registers the oat file now as we may use the oat_dex_file later and we want the |
| 731 | // intern behavior of RegisterOatFile. However, if we take an early return we could remove |
| 732 | // the oat file. |
| 733 | const OatFile* opened_oat_file = RegisterOatFile(oat_file.release()); |
| 734 | const OatFile::OatDexFile* oat_dex_file = opened_oat_file->GetOatDexFile(dex_location, |
| 735 | &dex_location_checksum); |
| 736 | if (oat_dex_file == nullptr) { |
| 737 | *error_msg = StringPrintf("Failed to find oat file at '%s' containing '%s'", oat_location, |
| 738 | dex_location); |
| 739 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 740 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 741 | uint32_t expected_dex_checksum = dex_location_checksum; |
| 742 | uint32_t actual_dex_checksum = oat_dex_file->GetDexFileLocationChecksum(); |
| 743 | if (expected_dex_checksum != actual_dex_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 744 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected dex checksum of 0x%x, " |
| 745 | "found 0x%x", oat_location, expected_dex_checksum, |
| 746 | actual_dex_checksum); |
| 747 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 748 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 749 | return oat_dex_file->OpenDexFile(error_msg); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 750 | } |
| 751 | |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 752 | class ScopedFlock { |
| 753 | public: |
| 754 | ScopedFlock() {} |
| 755 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 756 | bool Init(const char* filename, std::string* error_msg) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 757 | while (true) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 758 | file_.reset(OS::OpenFileWithFlags(filename, O_CREAT | O_RDWR)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 759 | if (file_.get() == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 760 | *error_msg = StringPrintf("Failed to open file '%s'", filename); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 761 | return false; |
| 762 | } |
| 763 | int flock_result = TEMP_FAILURE_RETRY(flock(file_->Fd(), LOCK_EX)); |
| 764 | if (flock_result != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 765 | *error_msg = StringPrintf("Failed to lock file '%s': %s", filename, strerror(errno)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 766 | return false; |
| 767 | } |
| 768 | struct stat fstat_stat; |
| 769 | int fstat_result = TEMP_FAILURE_RETRY(fstat(file_->Fd(), &fstat_stat)); |
| 770 | if (fstat_result != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 771 | *error_msg = StringPrintf("Failed to fstat file '%s': %s", filename, strerror(errno)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 772 | return false; |
| 773 | } |
| 774 | struct stat stat_stat; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 775 | int stat_result = TEMP_FAILURE_RETRY(stat(filename, &stat_stat)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 776 | if (stat_result != 0) { |
| 777 | PLOG(WARNING) << "Failed to stat, will retry: " << filename; |
| 778 | // ENOENT can happen if someone racing with us unlinks the file we created so just retry. |
| 779 | continue; |
| 780 | } |
| 781 | if (fstat_stat.st_dev != stat_stat.st_dev || fstat_stat.st_ino != stat_stat.st_ino) { |
| 782 | LOG(WARNING) << "File changed while locking, will retry: " << filename; |
| 783 | continue; |
| 784 | } |
| 785 | return true; |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | File& GetFile() { |
| 790 | return *file_; |
| 791 | } |
| 792 | |
| 793 | ~ScopedFlock() { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 794 | if (file_.get() != NULL) { |
| 795 | int flock_result = TEMP_FAILURE_RETRY(flock(file_->Fd(), LOCK_UN)); |
| 796 | CHECK_EQ(0, flock_result); |
| 797 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 798 | } |
| 799 | |
| 800 | private: |
| 801 | UniquePtr<File> file_; |
| 802 | |
| 803 | DISALLOW_COPY_AND_ASSIGN(ScopedFlock); |
| 804 | }; |
| 805 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 806 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocation(const char* dex_location, |
| 807 | uint32_t dex_location_checksum, |
| 808 | const char* oat_location, |
| 809 | std::string* error_msg) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 810 | // We play a locking game here so that if two different processes |
| 811 | // race to generate (or worse, one tries to open a partial generated |
| 812 | // file) we will be okay. This is actually common with apps that use |
| 813 | // DexClassLoader to work around the dex method reference limit and |
| 814 | // that have a background service running in a separate process. |
| 815 | ScopedFlock scoped_flock; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 816 | if (!scoped_flock.Init(oat_location, error_msg)) { |
| 817 | return nullptr; |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 818 | } |
| 819 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 820 | // Check if we already have an up-to-date output file |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 821 | const DexFile* dex_file = FindDexFileInOatLocation(dex_location, dex_location_checksum, |
| 822 | oat_location, error_msg); |
| 823 | if (dex_file != nullptr) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 824 | return dex_file; |
| 825 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 826 | VLOG(class_linker) << "Failed to find dex file '" << dex_location << "' in oat location '" |
| 827 | << oat_location << "': " << *error_msg; |
| 828 | error_msg->clear(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 829 | |
| 830 | // Generate the output oat file for the dex file |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 831 | VLOG(class_linker) << "Generating oat file " << oat_location << " for " << dex_location; |
| 832 | if (!GenerateOatFile(dex_location, scoped_flock.GetFile().Fd(), oat_location)) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 833 | CHECK(Thread::Current()->IsExceptionPending()); |
| 834 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 835 | } |
Brian Carlstrom | f1d3455 | 2013-07-12 20:22:23 -0700 | [diff] [blame] | 836 | const OatFile* oat_file = OatFile::Open(oat_location, oat_location, NULL, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 837 | !Runtime::Current()->IsCompiler(), |
| 838 | error_msg); |
| 839 | if (oat_file == nullptr) { |
| 840 | *error_msg = StringPrintf("Failed to open generated oat file '%s': %s", |
| 841 | oat_location, error_msg->c_str()); |
| 842 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 843 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 844 | oat_file = RegisterOatFile(oat_file); |
| 845 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
| 846 | &dex_location_checksum); |
| 847 | if (oat_dex_file == nullptr) { |
| 848 | *error_msg = StringPrintf("Failed to find dex file '%s' (checksum 0x%x) in generated out file " |
| 849 | "'%s'", dex_location, dex_location_checksum, oat_location); |
| 850 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 851 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 852 | const DexFile* result = oat_dex_file->OpenDexFile(error_msg); |
| 853 | CHECK(result != nullptr) << *error_msg; |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 854 | CHECK_EQ(dex_location_checksum, result->GetLocationChecksum()) |
| 855 | << "dex_location=" << dex_location << " oat_location=" << oat_location << std::hex |
| 856 | << " dex_location_checksum=" << dex_location_checksum |
Brian Carlstrom | b00309f | 2013-09-30 14:23:30 -0700 | [diff] [blame] | 857 | << " DexFile::GetLocationChecksum()=" << result->GetLocationChecksum(); |
| 858 | return result; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 859 | } |
| 860 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 861 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 862 | const char* dex_location, |
| 863 | uint32_t dex_location_checksum, |
| 864 | std::string* error_msg) { |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 865 | Runtime* runtime = Runtime::Current(); |
| 866 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 867 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 868 | uint32_t image_oat_data_begin = reinterpret_cast<uint32_t>(image_header.GetOatDataBegin()); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 869 | bool image_check = ((oat_file->GetOatHeader().GetImageFileLocationOatChecksum() == image_oat_checksum) |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 870 | && (oat_file->GetOatHeader().GetImageFileLocationOatDataBegin() == image_oat_data_begin)); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 871 | |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 872 | 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] | 873 | if (oat_dex_file == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 874 | *error_msg = StringPrintf("oat file '%s' does not contain contents for '%s' with checksum 0x%x", |
| 875 | oat_file->GetLocation().c_str(), dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 876 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 877 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 878 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 879 | *error_msg += StringPrintf("\noat file '%s' contains contents for '%s'", |
| 880 | oat_file->GetLocation().c_str(), |
| 881 | oat_dex_file->GetDexFileLocation().c_str()); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 882 | } |
| 883 | return false; |
| 884 | } |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 885 | bool dex_check = dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 886 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 887 | if (image_check && dex_check) { |
| 888 | return true; |
| 889 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 890 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 891 | if (!image_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 892 | ScopedObjectAccess soa(Thread::Current()); |
| 893 | mirror::String* oat_location = image_header.GetImageRoot(ImageHeader::kOatLocation)->AsString(); |
| 894 | std::string image_file(oat_location->ToModifiedUtf8()); |
| 895 | *error_msg = StringPrintf("oat file '%s' mismatch (0x%x, %d) with '%s' (0x%x, %d)", |
| 896 | oat_file->GetLocation().c_str(), |
| 897 | oat_file->GetOatHeader().GetImageFileLocationOatChecksum(), |
| 898 | oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(), |
| 899 | image_file.c_str(), image_oat_checksum, image_oat_data_begin); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 900 | } |
| 901 | if (!dex_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 902 | *error_msg = StringPrintf("oat file '%s' mismatch (0x%x) with '%s' (0x%x)", |
| 903 | oat_file->GetLocation().c_str(), |
| 904 | oat_dex_file->GetDexFileLocationChecksum(), |
| 905 | dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 906 | } |
| 907 | return false; |
| 908 | } |
| 909 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 910 | const DexFile* ClassLinker::VerifyAndOpenDexFileFromOatFile(const std::string& oat_file_location, |
| 911 | const char* dex_location, |
| 912 | std::string* error_msg, |
| 913 | bool* open_failed) { |
| 914 | UniquePtr<const OatFile> oat_file(FindOatFileFromOatLocation(oat_file_location, error_msg)); |
| 915 | if (oat_file.get() == nullptr) { |
| 916 | *open_failed = true; |
| 917 | return nullptr; |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 918 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 919 | *open_failed = false; |
| 920 | uint32_t dex_location_checksum; |
| 921 | if (!DexFile::GetChecksum(dex_location, &dex_location_checksum, error_msg)) { |
| 922 | // If no classes.dex found in dex_location, it has been stripped or is corrupt, assume oat is |
| 923 | // up-to-date. This is the common case in user builds for jar's and apk's in the /system |
| 924 | // directory. |
| 925 | const OatFile* opened_oat_file = oat_file.release(); |
| 926 | opened_oat_file = RegisterOatFile(opened_oat_file); |
| 927 | const OatFile::OatDexFile* oat_dex_file = opened_oat_file->GetOatDexFile(dex_location, NULL); |
| 928 | if (oat_dex_file == nullptr) { |
| 929 | *error_msg = StringPrintf("Dex checksum mismatch for location '%s' and failed to find oat " |
| 930 | "dex file '%s': %s", oat_file_location.c_str(), dex_location, |
| 931 | error_msg->c_str()); |
| 932 | return nullptr; |
| 933 | } |
| 934 | return oat_dex_file->OpenDexFile(error_msg); |
| 935 | } |
| 936 | |
| 937 | bool verified = VerifyOatFileChecksums(oat_file.get(), dex_location, dex_location_checksum, |
| 938 | error_msg); |
| 939 | if (!verified) { |
| 940 | return nullptr; |
| 941 | } |
| 942 | const OatFile* opened_oat_file = oat_file.release(); |
| 943 | opened_oat_file = RegisterOatFile(opened_oat_file); |
| 944 | return opened_oat_file->GetOatDexFile(dex_location, |
| 945 | &dex_location_checksum)->OpenDexFile(error_msg); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 946 | } |
| 947 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 948 | const DexFile* ClassLinker::FindDexFileInOatFileFromDexLocation(const char* dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 949 | const uint32_t* const dex_location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 950 | std::string* error_msg) { |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 951 | const OatFile* open_oat_file = FindOpenedOatFileFromDexLocation(dex_location, |
| 952 | dex_location_checksum); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 953 | if (open_oat_file != nullptr) { |
| 954 | const OatFile::OatDexFile* oat_dex_file = open_oat_file->GetOatDexFile(dex_location, |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 955 | dex_location_checksum); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 956 | return oat_dex_file->OpenDexFile(error_msg); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 957 | } |
| 958 | |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 959 | // Look for an existing file next to dex. for example, for |
Brian Carlstrom | 30e2ea4 | 2013-06-19 23:25:37 -0700 | [diff] [blame] | 960 | // /foo/bar/baz.jar, look for /foo/bar/baz.odex. |
| 961 | std::string odex_filename(OatFile::DexFilenameToOdexFilename(dex_location)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 962 | bool open_failed; |
| 963 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(odex_filename, dex_location, |
| 964 | error_msg, &open_failed); |
| 965 | if (dex_file != nullptr) { |
| 966 | return dex_file; |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 967 | } |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 968 | if (dex_location_checksum == nullptr) { |
| 969 | *error_msg = StringPrintf("Failed to open oat file from %s and no classes.dex found in %s: %s", |
| 970 | odex_filename.c_str(), dex_location, error_msg->c_str()); |
| 971 | return nullptr; |
| 972 | } |
| 973 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 974 | std::string cache_error_msg; |
Brian Carlstrom | 30e2ea4 | 2013-06-19 23:25:37 -0700 | [diff] [blame] | 975 | std::string cache_location(GetDalvikCacheFilenameOrDie(dex_location)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 976 | dex_file = VerifyAndOpenDexFileFromOatFile(cache_location, dex_location, &cache_error_msg, |
| 977 | &open_failed); |
| 978 | if (dex_file != nullptr) { |
| 979 | return dex_file; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 980 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 981 | if (!open_failed && TEMP_FAILURE_RETRY(unlink(cache_location.c_str())) != 0) { |
| 982 | PLOG(FATAL) << "Failed to remove obsolete oat file from " << cache_location; |
| 983 | } |
| 984 | VLOG(class_linker) << "Failed to open oat file from " << odex_filename |
| 985 | << " (error '" << *error_msg << "') or " << cache_location |
| 986 | << " (error '" << cache_error_msg << "')."; |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 987 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 988 | // Try to generate oat file if it wasn't found or was obsolete. |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 989 | error_msg->clear(); |
Brian Carlstrom | 08cbf66 | 2013-12-10 16:52:57 -0800 | [diff] [blame] | 990 | return FindOrCreateOatFileForDexLocation(dex_location, *dex_location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 991 | cache_location.c_str(), error_msg); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 992 | } |
| 993 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 994 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 995 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 996 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 997 | const OatFile* oat_file = oat_files_[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 998 | DCHECK(oat_file != nullptr); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 999 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1000 | return oat_file; |
| 1001 | } |
| 1002 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1003 | return nullptr; |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 1004 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1005 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1006 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location, |
| 1007 | std::string* error_msg) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 1008 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1009 | if (oat_file != nullptr) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 1010 | return oat_file; |
| 1011 | } |
| 1012 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1013 | oat_file = OatFile::Open(oat_location, oat_location, NULL, !Runtime::Current()->IsCompiler(), |
| 1014 | error_msg); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1015 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 1016 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1017 | } |
| 1018 | return oat_file; |
| 1019 | } |
| 1020 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1021 | static void InitFromImageInterpretOnlyCallback(mirror::Object* obj, void* arg) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1022 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1023 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
| 1024 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1025 | DCHECK(obj != NULL); |
| 1026 | DCHECK(class_linker != NULL); |
| 1027 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1028 | if (obj->IsArtMethod()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1029 | mirror::ArtMethod* method = obj->AsArtMethod(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1030 | if (!method->IsNative()) { |
| 1031 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
| 1032 | if (method != Runtime::Current()->GetResolutionMethod()) { |
| 1033 | method->SetEntryPointFromCompiledCode(GetCompiledCodeToInterpreterBridge()); |
| 1034 | } |
| 1035 | } |
| 1036 | } |
| 1037 | } |
| 1038 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1039 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1040 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1041 | CHECK(!init_done_); |
| 1042 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1043 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1044 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 1045 | gc::space::ImageSpace* space = heap->GetImageSpace(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1046 | dex_cache_image_class_lookup_required_ = true; |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1047 | CHECK(space != NULL); |
| 1048 | OatFile& oat_file = GetImageOatFile(space); |
| 1049 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatChecksum(), 0U); |
| 1050 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatDataBegin(), 0U); |
| 1051 | CHECK(oat_file.GetOatHeader().GetImageFileLocation().empty()); |
| 1052 | portable_resolution_trampoline_ = oat_file.GetOatHeader().GetPortableResolutionTrampoline(); |
| 1053 | quick_resolution_trampoline_ = oat_file.GetOatHeader().GetQuickResolutionTrampoline(); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1054 | portable_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetPortableImtConflictTrampoline(); |
| 1055 | quick_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetQuickImtConflictTrampoline(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1056 | mirror::Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 1057 | mirror::ObjectArray<mirror::DexCache>* dex_caches = |
| 1058 | dex_caches_object->AsObjectArray<mirror::DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1059 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1060 | SirtRef<mirror::ObjectArray<mirror::Class> > class_roots( |
| 1061 | self, |
| 1062 | space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots)->AsObjectArray<mirror::Class>()); |
| 1063 | class_roots_ = class_roots.get(); |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1064 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1065 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 1066 | // as being Strings or not |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1067 | mirror::String::SetClass(GetClassRoot(kJavaLangString)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1068 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1069 | CHECK_EQ(oat_file.GetOatHeader().GetDexFileCount(), |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1070 | static_cast<uint32_t>(dex_caches->GetLength())); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1071 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1072 | SirtRef<mirror::DexCache> dex_cache(self, dex_caches->Get(i)); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1073 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1074 | const OatFile::OatDexFile* oat_dex_file = oat_file.GetOatDexFile(dex_file_location.c_str(), |
| 1075 | nullptr); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1076 | CHECK(oat_dex_file != NULL) << oat_file.GetLocation() << " " << dex_file_location; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1077 | std::string error_msg; |
| 1078 | const DexFile* dex_file = oat_dex_file->OpenDexFile(&error_msg); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1079 | if (dex_file == NULL) { |
| 1080 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1081 | << " from within oat file " << oat_file.GetLocation() |
| 1082 | << " error '" << error_msg << "'"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1083 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1084 | |
| 1085 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 1086 | |
| 1087 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1088 | } |
| 1089 | |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1090 | // Set classes on AbstractMethod early so that IsMethod tests can be performed during the live |
| 1091 | // bitmap walk. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1092 | mirror::ArtMethod::SetClass(GetClassRoot(kJavaLangReflectArtMethod)); |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1093 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1094 | // Set entry point to interpreter if in InterpretOnly mode. |
| 1095 | if (Runtime::Current()->GetInstrumentation()->InterpretOnly()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1096 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1097 | heap->VisitObjects(InitFromImageInterpretOnlyCallback, this); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 1098 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1099 | |
| 1100 | // reinit class_roots_ |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1101 | mirror::Class::SetClassClass(class_roots->Get(kJavaLangClass)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1102 | class_roots_ = class_roots.get(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1103 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1104 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1105 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 1106 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1107 | // String class root was set above |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1108 | mirror::ArtField::SetClass(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1109 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 1110 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 1111 | mirror::CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 1112 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 1113 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 1114 | mirror::IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1115 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1116 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 1117 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
| 1118 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1119 | |
| 1120 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1121 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1122 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1123 | } |
| 1124 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1125 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1126 | // reinit references to when reinitializing a ClassLinker from a |
| 1127 | // mapped image. |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1128 | void ClassLinker::VisitRoots(RootVisitor* visitor, void* arg, bool only_dirty, bool clean_dirty) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1129 | class_roots_ = down_cast<mirror::ObjectArray<mirror::Class>*>(visitor(class_roots_, arg)); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1130 | Thread* self = Thread::Current(); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1131 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1132 | ReaderMutexLock mu(self, dex_lock_); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1133 | if (!only_dirty || dex_caches_dirty_) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1134 | for (mirror::DexCache*& dex_cache : dex_caches_) { |
| 1135 | dex_cache = down_cast<mirror::DexCache*>(visitor(dex_cache, arg)); |
| 1136 | DCHECK(dex_cache != nullptr); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1137 | } |
| 1138 | if (clean_dirty) { |
| 1139 | dex_caches_dirty_ = false; |
| 1140 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1141 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1142 | } |
| 1143 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1144 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1145 | WriterMutexLock mu(self, *Locks::classlinker_classes_lock_); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1146 | if (!only_dirty || class_table_dirty_) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1147 | for (std::pair<const size_t, mirror::Class*>& it : class_table_) { |
| 1148 | it.second = down_cast<mirror::Class*>(visitor(it.second, arg)); |
| 1149 | DCHECK(it.second != nullptr); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1150 | } |
| 1151 | if (clean_dirty) { |
| 1152 | class_table_dirty_ = false; |
| 1153 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1154 | } |
Mathieu Chartier | 262e5ff | 2012-06-01 17:35:38 -0700 | [diff] [blame] | 1155 | |
| 1156 | // We deliberately ignore the class roots in the image since we |
| 1157 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1158 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1159 | |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1160 | array_iftable_ = reinterpret_cast<mirror::IfTable*>(visitor(array_iftable_, arg)); |
| 1161 | DCHECK(array_iftable_ != nullptr); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1162 | } |
| 1163 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1164 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) { |
| 1165 | if (dex_cache_image_class_lookup_required_) { |
| 1166 | MoveImageClassesToClassTable(); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1167 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1168 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1169 | for (const std::pair<size_t, mirror::Class*>& it : class_table_) { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1170 | if (!visitor(it.second, arg)) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1171 | return; |
| 1172 | } |
| 1173 | } |
| 1174 | } |
| 1175 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1176 | static bool GetClassesVisitor(mirror::Class* c, void* arg) { |
| 1177 | std::set<mirror::Class*>* classes = reinterpret_cast<std::set<mirror::Class*>*>(arg); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1178 | classes->insert(c); |
| 1179 | return true; |
| 1180 | } |
| 1181 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1182 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1183 | std::set<mirror::Class*> classes; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1184 | VisitClasses(GetClassesVisitor, &classes); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1185 | for (mirror::Class* klass : classes) { |
| 1186 | if (!visitor(klass, arg)) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1187 | return; |
| 1188 | } |
| 1189 | } |
| 1190 | } |
| 1191 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1192 | ClassLinker::~ClassLinker() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1193 | mirror::Class::ResetClass(); |
| 1194 | mirror::String::ResetClass(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1195 | mirror::ArtField::ResetClass(); |
| 1196 | mirror::ArtMethod::ResetClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1197 | mirror::BooleanArray::ResetArrayClass(); |
| 1198 | mirror::ByteArray::ResetArrayClass(); |
| 1199 | mirror::CharArray::ResetArrayClass(); |
| 1200 | mirror::DoubleArray::ResetArrayClass(); |
| 1201 | mirror::FloatArray::ResetArrayClass(); |
| 1202 | mirror::IntArray::ResetArrayClass(); |
| 1203 | mirror::LongArray::ResetArrayClass(); |
| 1204 | mirror::ShortArray::ResetArrayClass(); |
| 1205 | mirror::Throwable::ResetClass(); |
| 1206 | mirror::StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1207 | STLDeleteElements(&boot_class_path_); |
| 1208 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1209 | } |
| 1210 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1211 | mirror::DexCache* ClassLinker::AllocDexCache(Thread* self, const DexFile& dex_file) { |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1212 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1213 | SirtRef<mirror::Class> dex_cache_class(self, GetClassRoot(kJavaLangDexCache)); |
| 1214 | SirtRef<mirror::DexCache> dex_cache( |
| 1215 | self, down_cast<mirror::DexCache*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1216 | heap->AllocObject<true>(self, dex_cache_class.get(), dex_cache_class->GetObjectSize()))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1217 | if (dex_cache.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1218 | return NULL; |
| 1219 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1220 | SirtRef<mirror::String> |
| 1221 | location(self, intern_table_->InternStrong(dex_file.GetLocation().c_str())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1222 | if (location.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1223 | return NULL; |
| 1224 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1225 | SirtRef<mirror::ObjectArray<mirror::String> > |
| 1226 | strings(self, AllocStringArray(self, dex_file.NumStringIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1227 | if (strings.get() == NULL) { |
| 1228 | return NULL; |
| 1229 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1230 | SirtRef<mirror::ObjectArray<mirror::Class> > |
| 1231 | types(self, AllocClassArray(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1232 | if (types.get() == NULL) { |
| 1233 | return NULL; |
| 1234 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1235 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
| 1236 | methods(self, AllocArtMethodArray(self, dex_file.NumMethodIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1237 | if (methods.get() == NULL) { |
| 1238 | return NULL; |
| 1239 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1240 | SirtRef<mirror::ObjectArray<mirror::ArtField> > |
| 1241 | fields(self, AllocArtFieldArray(self, dex_file.NumFieldIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1242 | if (fields.get() == NULL) { |
| 1243 | return NULL; |
| 1244 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1245 | SirtRef<mirror::ObjectArray<mirror::StaticStorageBase> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1246 | initialized_static_storage(self, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1247 | AllocObjectArray<mirror::StaticStorageBase>(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1248 | if (initialized_static_storage.get() == NULL) { |
| 1249 | return NULL; |
| 1250 | } |
| 1251 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1252 | dex_cache->Init(&dex_file, location.get(), strings.get(), types.get(), methods.get(), |
| 1253 | fields.get(), initialized_static_storage.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1254 | return dex_cache.get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1255 | } |
| 1256 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1257 | mirror::Class* ClassLinker::AllocClass(Thread* self, mirror::Class* java_lang_Class, |
| 1258 | size_t class_size) { |
| 1259 | DCHECK_GE(class_size, sizeof(mirror::Class)); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1260 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1261 | mirror::Object* k = |
| 1262 | kMovingClasses ? |
| 1263 | heap->AllocObject<true>(self, java_lang_Class, class_size) : |
| 1264 | heap->AllocNonMovableObject<true>(self, java_lang_Class, class_size); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1265 | if (UNLIKELY(k == NULL)) { |
| 1266 | CHECK(self->IsExceptionPending()); // OOME. |
| 1267 | return NULL; |
| 1268 | } |
| 1269 | mirror::Class* klass = k->AsClass(); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1270 | klass->SetPrimitiveType(Primitive::kPrimNot); // Default to not being primitive. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1271 | klass->SetClassSize(class_size); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1272 | klass->SetDexClassDefIndex(DexFile::kDexNoIndex16); // Default to no valid class def index. |
| 1273 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); // Default to no valid type index. |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1274 | return klass; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1275 | } |
| 1276 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1277 | mirror::Class* ClassLinker::AllocClass(Thread* self, size_t class_size) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1278 | return AllocClass(self, GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1279 | } |
| 1280 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1281 | mirror::ArtField* ClassLinker::AllocArtField(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1282 | return down_cast<mirror::ArtField*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1283 | GetClassRoot(kJavaLangReflectArtField)->AllocNonMovableObject(self)); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1284 | } |
| 1285 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1286 | mirror::ArtMethod* ClassLinker::AllocArtMethod(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1287 | return down_cast<mirror::ArtMethod*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1288 | GetClassRoot(kJavaLangReflectArtMethod)->AllocNonMovableObject(self)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1289 | } |
| 1290 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1291 | mirror::ObjectArray<mirror::StackTraceElement>* ClassLinker::AllocStackTraceElementArray( |
| 1292 | Thread* self, size_t length) { |
| 1293 | return mirror::ObjectArray<mirror::StackTraceElement>::Alloc( |
| 1294 | self, GetClassRoot(kJavaLangStackTraceElementArrayClass), length); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1295 | } |
| 1296 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1297 | static mirror::Class* EnsureResolved(Thread* self, mirror::Class* klass) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1298 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1299 | DCHECK(klass != NULL); |
| 1300 | // Wait for the class if it has not already been linked. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1301 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1302 | SirtRef<mirror::Class> sirt_class(self, klass); |
| 1303 | ObjectLock<mirror::Class> lock(self, &sirt_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1304 | // Check for circular dependencies between classes. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1305 | if (!sirt_class->IsResolved() && sirt_class->GetClinitThreadId() == self->GetTid()) { |
| 1306 | ThrowClassCircularityError(sirt_class.get()); |
| 1307 | sirt_class->SetStatus(mirror::Class::kStatusError, self); |
| 1308 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1309 | } |
| 1310 | // Wait for the pending initialization to complete. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1311 | while (!sirt_class->IsResolved() && !sirt_class->IsErroneous()) { |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 1312 | lock.WaitIgnoringInterrupts(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1313 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1314 | klass = sirt_class.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1315 | } |
| 1316 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1317 | ThrowEarlierClassFailure(klass); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1318 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1319 | } |
| 1320 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1321 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1322 | self->AssertNoPendingException(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1323 | return klass; |
| 1324 | } |
| 1325 | |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1326 | bool ClassLinker::IsInBootClassPath(const char* descriptor) { |
| 1327 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1328 | return pair.second != NULL; |
| 1329 | } |
| 1330 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1331 | mirror::Class* ClassLinker::FindSystemClass(const char* descriptor) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1332 | SirtRef<mirror::ClassLoader> class_loader(Thread::Current(), nullptr); |
| 1333 | return FindClass(descriptor, class_loader); |
Elliott Hughes | db7d5e9 | 2011-12-16 18:47:37 -0800 | [diff] [blame] | 1334 | } |
| 1335 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1336 | mirror::Class* ClassLinker::FindClass(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1337 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1338 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1339 | Thread* self = Thread::Current(); |
| 1340 | DCHECK(self != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1341 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1342 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1343 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1344 | // for primitive classes that aren't backed by dex files. |
| 1345 | return FindPrimitiveClass(descriptor[0]); |
| 1346 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1347 | // Find the class in the loaded classes table. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1348 | mirror::Class* klass = LookupClass(descriptor, class_loader.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1349 | if (klass != NULL) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1350 | return EnsureResolved(self, klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1351 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1352 | // Class is not yet loaded. |
| 1353 | if (descriptor[0] == '[') { |
| 1354 | return CreateArrayClass(descriptor, class_loader); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1355 | } else if (class_loader.get() == nullptr) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1356 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1357 | if (pair.second != NULL) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1358 | SirtRef<mirror::ClassLoader> class_loader(self, nullptr); |
| 1359 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1360 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1361 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1362 | // First try the boot class path, we check the descriptor first to avoid an unnecessary |
| 1363 | // throw of a NoClassDefFoundError. |
| 1364 | if (IsInBootClassPath(descriptor)) { |
| 1365 | mirror::Class* system_class = FindSystemClass(descriptor); |
| 1366 | CHECK(system_class != NULL); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1367 | return system_class; |
| 1368 | } |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1369 | // Next try the compile time class path. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1370 | const std::vector<const DexFile*>* class_path; |
| 1371 | { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1372 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1373 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), |
| 1374 | soa.AddLocalReference<jobject>(class_loader.get())); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1375 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1376 | } |
| 1377 | |
| 1378 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1379 | if (pair.second != NULL) { |
| 1380 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1381 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1382 | |
| 1383 | } else { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1384 | ScopedObjectAccessUnchecked soa(self->GetJniEnv()); |
| 1385 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1386 | soa.AddLocalReference<jobject>(class_loader.get())); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1387 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1388 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1389 | { |
| 1390 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1391 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1392 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1393 | if (class_name_object.get() == NULL) { |
| 1394 | return NULL; |
| 1395 | } |
| 1396 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1397 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1398 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1399 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1400 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1401 | if (soa.Self()->IsExceptionPending()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1402 | // If the ClassLoader threw, pass that exception up. |
| 1403 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1404 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1405 | // broken loader - throw NPE to be compatible with Dalvik |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1406 | ThrowNullPointerException(NULL, StringPrintf("ClassLoader.loadClass returned null for %s", |
| 1407 | class_name_string.c_str()).c_str()); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1408 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1409 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1410 | // success, return mirror::Class* |
| 1411 | return soa.Decode<mirror::Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1412 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1413 | } |
| 1414 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1415 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1416 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1417 | } |
| 1418 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1419 | mirror::Class* ClassLinker::DefineClass(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1420 | const SirtRef<mirror::ClassLoader>& class_loader, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1421 | const DexFile& dex_file, |
| 1422 | const DexFile::ClassDef& dex_class_def) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1423 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1424 | SirtRef<mirror::Class> klass(self, NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1425 | // Load the class from the dex file. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1426 | if (UNLIKELY(!init_done_)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1427 | // finish up init of hand crafted class_roots_ |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1428 | if (strcmp(descriptor, "Ljava/lang/Object;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1429 | klass.reset(GetClassRoot(kJavaLangObject)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1430 | } else if (strcmp(descriptor, "Ljava/lang/Class;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1431 | klass.reset(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1432 | } else if (strcmp(descriptor, "Ljava/lang/String;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1433 | klass.reset(GetClassRoot(kJavaLangString)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1434 | } else if (strcmp(descriptor, "Ljava/lang/DexCache;") == 0) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1435 | klass.reset(GetClassRoot(kJavaLangDexCache)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1436 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtField;") == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1437 | klass.reset(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1438 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtMethod;") == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1439 | klass.reset(GetClassRoot(kJavaLangReflectArtMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1440 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1441 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1442 | } |
| 1443 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1444 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1445 | } |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1446 | if (UNLIKELY(klass.get() == NULL)) { |
| 1447 | CHECK(self->IsExceptionPending()); // Expect an OOME. |
| 1448 | return NULL; |
| 1449 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1450 | klass->SetDexCache(FindDexCache(dex_file)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1451 | LoadClass(dex_file, dex_class_def, klass, class_loader.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1452 | // Check for a pending exception during load |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1453 | if (self->IsExceptionPending()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1454 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1455 | return NULL; |
| 1456 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1457 | ObjectLock<mirror::Class> lock(self, &klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1458 | klass->SetClinitThreadId(self->GetTid()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1459 | // Add the newly loaded class to the loaded classes table. |
| 1460 | mirror::Class* existing = InsertClass(descriptor, klass.get(), Hash(descriptor)); |
| 1461 | if (existing != NULL) { |
| 1462 | // We failed to insert because we raced with another thread. Calling EnsureResolved may cause |
| 1463 | // this thread to block. |
| 1464 | return EnsureResolved(self, existing); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1465 | } |
| 1466 | // Finish loading (if necessary) by finding parents |
| 1467 | CHECK(!klass->IsLoaded()); |
| 1468 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1469 | // Loading failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1470 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1471 | return NULL; |
| 1472 | } |
| 1473 | CHECK(klass->IsLoaded()); |
| 1474 | // Link the class (if necessary) |
| 1475 | CHECK(!klass->IsResolved()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1476 | // TODO: Use fast jobjects? |
| 1477 | SirtRef<mirror::ObjectArray<mirror::Class> > interfaces(self, nullptr); |
| 1478 | if (!LinkClass(self, klass, interfaces)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1479 | // Linking failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1480 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1481 | return NULL; |
| 1482 | } |
| 1483 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1484 | |
| 1485 | /* |
| 1486 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1487 | * definition of "preparation" is creating the static fields for a |
| 1488 | * class and initializing them to the standard default values, but not |
| 1489 | * executing any code (that comes later, during "initialization"). |
| 1490 | * |
| 1491 | * We did the static preparation in LinkClass. |
| 1492 | * |
| 1493 | * The class has been prepared and resolved but possibly not yet verified |
| 1494 | * at this point. |
| 1495 | */ |
| 1496 | Dbg::PostClassPrepare(klass.get()); |
| 1497 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1498 | return klass.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1499 | } |
| 1500 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1501 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
| 1502 | size_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
| 1503 | const DexFile::ClassDef& dex_class_def) { |
| 1504 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1505 | size_t num_ref = 0; |
| 1506 | size_t num_32 = 0; |
| 1507 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1508 | if (class_data != NULL) { |
| 1509 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1510 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1511 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1512 | char c = descriptor[0]; |
| 1513 | if (c == 'L' || c == '[') { |
| 1514 | num_ref++; |
| 1515 | } else if (c == 'J' || c == 'D') { |
| 1516 | num_64++; |
| 1517 | } else { |
| 1518 | num_32++; |
| 1519 | } |
| 1520 | } |
| 1521 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1522 | // start with generic class data |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1523 | size_t size = sizeof(mirror::Class); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1524 | // follow with reference fields which must be contiguous at start |
| 1525 | size += (num_ref * sizeof(uint32_t)); |
| 1526 | // 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] | 1527 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1528 | if (num_32 != 0) { |
| 1529 | // use an available 32-bit field for padding |
| 1530 | num_32--; |
| 1531 | } |
| 1532 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1533 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1534 | } |
| 1535 | // tack on any 64-bit fields now that alignment is assured |
| 1536 | size += (num_64 * sizeof(uint64_t)); |
| 1537 | // tack on any remaining 32-bit fields |
| 1538 | size += (num_32 * sizeof(uint32_t)); |
| 1539 | return size; |
| 1540 | } |
| 1541 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1542 | const OatFile::OatClass* ClassLinker::GetOatClass(const DexFile& dex_file, uint16_t class_def_idx) { |
| 1543 | DCHECK_NE(class_def_idx, DexFile::kDexNoIndex16); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1544 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1545 | CHECK(oat_file != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 1546 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1547 | 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] | 1548 | &dex_location_checksum); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1549 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation(); |
| 1550 | const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_idx); |
| 1551 | CHECK(oat_class != NULL) << dex_file.GetLocation() << " " << class_def_idx; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1552 | return oat_class; |
| 1553 | } |
| 1554 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1555 | static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, uint16_t class_def_idx, |
| 1556 | uint32_t method_idx) { |
| 1557 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_idx); |
| 1558 | const byte* class_data = dex_file.GetClassData(class_def); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1559 | CHECK(class_data != NULL); |
| 1560 | ClassDataItemIterator it(dex_file, class_data); |
| 1561 | // Skip fields |
| 1562 | while (it.HasNextStaticField()) { |
| 1563 | it.Next(); |
| 1564 | } |
| 1565 | while (it.HasNextInstanceField()) { |
| 1566 | it.Next(); |
| 1567 | } |
| 1568 | // Process methods |
| 1569 | size_t class_def_method_index = 0; |
| 1570 | while (it.HasNextDirectMethod()) { |
| 1571 | if (it.GetMemberIndex() == method_idx) { |
| 1572 | return class_def_method_index; |
| 1573 | } |
| 1574 | class_def_method_index++; |
| 1575 | it.Next(); |
| 1576 | } |
| 1577 | while (it.HasNextVirtualMethod()) { |
| 1578 | if (it.GetMemberIndex() == method_idx) { |
| 1579 | return class_def_method_index; |
| 1580 | } |
| 1581 | class_def_method_index++; |
| 1582 | it.Next(); |
| 1583 | } |
| 1584 | DCHECK(!it.HasNext()); |
| 1585 | LOG(FATAL) << "Failed to find method index " << method_idx << " in " << dex_file.GetLocation(); |
| 1586 | return 0; |
| 1587 | } |
| 1588 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1589 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(const mirror::ArtMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1590 | // 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] | 1591 | // method for direct methods (or virtual methods made direct). |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1592 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1593 | size_t oat_method_index; |
| 1594 | if (method->IsStatic() || method->IsDirect()) { |
| 1595 | // Simple case where the oat method index was stashed at load time. |
| 1596 | oat_method_index = method->GetMethodIndex(); |
| 1597 | } else { |
| 1598 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1599 | // by search for its position in the declared virtual methods. |
| 1600 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1601 | size_t end = declaring_class->NumVirtualMethods(); |
| 1602 | bool found = false; |
| 1603 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1604 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1605 | found = true; |
| 1606 | break; |
| 1607 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1608 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1609 | } |
| 1610 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1611 | } |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1612 | UniquePtr<const OatFile::OatClass> |
| 1613 | oat_class(GetOatClass(*declaring_class->GetDexCache()->GetDexFile(), |
| 1614 | declaring_class->GetDexClassDefIndex())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1615 | CHECK(oat_class.get() != NULL); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1616 | DCHECK_EQ(oat_method_index, |
| 1617 | GetOatMethodIndexFromMethodIndex(*declaring_class->GetDexCache()->GetDexFile(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1618 | method->GetDeclaringClass()->GetDexClassDefIndex(), |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1619 | method->GetDexMethodIndex())); |
| 1620 | |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1621 | return oat_class->GetOatMethod(oat_method_index); |
| 1622 | } |
| 1623 | |
| 1624 | // Special case to get oat code without overwriting a trampoline. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1625 | const void* ClassLinker::GetOatCodeFor(const mirror::ArtMethod* method) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1626 | CHECK(!method->IsAbstract()) << PrettyMethod(method); |
Jeff Hao | 8df6cea | 2013-07-29 13:54:48 -0700 | [diff] [blame] | 1627 | if (method->IsProxyMethod()) { |
| 1628 | #if !defined(ART_USE_PORTABLE_COMPILER) |
| 1629 | return reinterpret_cast<void*>(art_quick_proxy_invoke_handler); |
| 1630 | #else |
| 1631 | return reinterpret_cast<void*>(art_portable_proxy_invoke_handler); |
| 1632 | #endif |
| 1633 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1634 | const void* result = GetOatMethodFor(method).GetCode(); |
| 1635 | if (result == NULL) { |
| 1636 | // No code? You must mean to go into the interpreter. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1637 | result = GetCompiledCodeToInterpreterBridge(); |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1638 | } |
| 1639 | return result; |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1640 | } |
| 1641 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1642 | const void* ClassLinker::GetOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx, |
| 1643 | uint32_t method_idx) { |
| 1644 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, class_def_idx)); |
| 1645 | CHECK(oat_class.get() != nullptr); |
| 1646 | uint32_t oat_method_idx = GetOatMethodIndexFromMethodIndex(dex_file, class_def_idx, method_idx); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1647 | return oat_class->GetOatMethod(oat_method_idx).GetCode(); |
| 1648 | } |
| 1649 | |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1650 | // Returns true if the method must run with interpreter, false otherwise. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1651 | static bool NeedsInterpreter(const mirror::ArtMethod* method, const void* code) { |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1652 | if (code == NULL) { |
| 1653 | // No code: need interpreter. |
| 1654 | return true; |
| 1655 | } |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 1656 | #ifdef ART_SEA_IR_MODE |
| 1657 | ScopedObjectAccess soa(Thread::Current()); |
| 1658 | if (std::string::npos != PrettyMethod(method).find("fibonacci")) { |
| 1659 | LOG(INFO) << "Found " << PrettyMethod(method); |
| 1660 | return false; |
| 1661 | } |
| 1662 | #endif |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1663 | // If interpreter mode is enabled, every method (except native and proxy) must |
| 1664 | // be run with interpreter. |
| 1665 | return Runtime::Current()->GetInstrumentation()->InterpretOnly() && |
| 1666 | !method->IsNative() && !method->IsProxyMethod(); |
| 1667 | } |
| 1668 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1669 | void ClassLinker::FixupStaticTrampolines(mirror::Class* klass) { |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1670 | if (klass->NumDirectMethods() == 0) { |
| 1671 | return; // No direct methods => no static methods. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1672 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1673 | Runtime* runtime = Runtime::Current(); |
| 1674 | if (!runtime->IsStarted() || runtime->UseCompileTimeClassPath()) { |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1675 | return; // OAT file unavailable. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1676 | } |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1677 | ClassHelper kh(klass); |
| 1678 | const DexFile& dex_file = kh.GetDexFile(); |
| 1679 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 1680 | CHECK(dex_class_def != nullptr); |
| 1681 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1682 | // There should always be class data if there were direct methods. |
| 1683 | CHECK(class_data != nullptr) << PrettyDescriptor(klass); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1684 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, klass->GetDexClassDefIndex())); |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1685 | CHECK(oat_class.get() != nullptr); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1686 | ClassDataItemIterator it(dex_file, class_data); |
| 1687 | // Skip fields |
| 1688 | while (it.HasNextStaticField()) { |
| 1689 | it.Next(); |
| 1690 | } |
| 1691 | while (it.HasNextInstanceField()) { |
| 1692 | it.Next(); |
| 1693 | } |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1694 | // Link the code of methods skipped by LinkCode. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1695 | for (size_t method_index = 0; it.HasNextDirectMethod(); ++method_index, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1696 | mirror::ArtMethod* method = klass->GetDirectMethod(method_index); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1697 | if (!method->IsStatic()) { |
| 1698 | // Only update static methods. |
| 1699 | continue; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1700 | } |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1701 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
| 1702 | const bool enter_interpreter = NeedsInterpreter(method, code); |
| 1703 | if (enter_interpreter) { |
| 1704 | // Use interpreter entry point. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1705 | code = GetCompiledCodeToInterpreterBridge(); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1706 | } |
| 1707 | runtime->GetInstrumentation()->UpdateMethodsCode(method, code); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1708 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1709 | // Ignore virtual methods on the iterator. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1710 | } |
| 1711 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1712 | static void LinkCode(const SirtRef<mirror::ArtMethod>& method, const OatFile::OatClass* oat_class, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1713 | uint32_t method_index) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1714 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1715 | // Method shouldn't have already been linked. |
Jeff Hao | aa4a793 | 2013-05-13 11:28:27 -0700 | [diff] [blame] | 1716 | DCHECK(method->GetEntryPointFromCompiledCode() == NULL); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1717 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1718 | // non-abstract methods also get their code pointers. |
| 1719 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Brian Carlstrom | 265091e | 2013-01-30 14:08:26 -0800 | [diff] [blame] | 1720 | oat_method.LinkMethod(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1721 | |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1722 | // Install entry point from interpreter. |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 1723 | Runtime* runtime = Runtime::Current(); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1724 | bool enter_interpreter = NeedsInterpreter(method.get(), method->GetEntryPointFromCompiledCode()); |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 1725 | if (enter_interpreter) { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1726 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1727 | } else { |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 1728 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1729 | } |
| 1730 | |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1731 | if (method->IsAbstract()) { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1732 | method->SetEntryPointFromCompiledCode(GetCompiledCodeToInterpreterBridge()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1733 | return; |
| 1734 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1735 | |
| 1736 | if (method->IsStatic() && !method->IsConstructor()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1737 | // For static methods excluding the class initializer, install the trampoline. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1738 | // It will be replaced by the proper entry point by ClassLinker::FixupStaticTrampolines |
| 1739 | // after initializing class (see ClassLinker::InitializeClass method). |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 1740 | method->SetEntryPointFromCompiledCode(GetResolutionTrampoline(runtime->GetClassLinker())); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1741 | } else if (enter_interpreter) { |
| 1742 | // Set entry point from compiled code if there's no code or in interpreter only mode. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1743 | method->SetEntryPointFromCompiledCode(GetCompiledCodeToInterpreterBridge()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 1744 | } |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1745 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1746 | if (method->IsNative()) { |
| 1747 | // Unregistering restores the dlsym lookup stub. |
| 1748 | method->UnregisterNative(Thread::Current()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1749 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1750 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1751 | // Allow instrumentation its chance to hijack code. |
Jeff Hao | aa4a793 | 2013-05-13 11:28:27 -0700 | [diff] [blame] | 1752 | runtime->GetInstrumentation()->UpdateMethodsCode(method.get(), |
| 1753 | method->GetEntryPointFromCompiledCode()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1754 | } |
| 1755 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1756 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1757 | const DexFile::ClassDef& dex_class_def, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1758 | const SirtRef<mirror::Class>& klass, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1759 | mirror::ClassLoader* class_loader) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1760 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1761 | CHECK(klass->GetDexCache() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1762 | CHECK_EQ(mirror::Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1763 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1764 | CHECK(descriptor != NULL); |
| 1765 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1766 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1767 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1768 | // Make sure that none of our runtime-only flags are set. |
Brian Carlstrom | 8e3fb14 | 2013-10-09 21:00:27 -0700 | [diff] [blame] | 1769 | CHECK_EQ(access_flags & ~kAccJavaFlagsMask, 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1770 | klass->SetAccessFlags(access_flags); |
| 1771 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1772 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1773 | klass->SetStatus(mirror::Class::kStatusIdx, NULL); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1774 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1775 | klass->SetDexClassDefIndex(dex_file.GetIndexForClassDef(dex_class_def)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1776 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1777 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1778 | // Load fields fields. |
| 1779 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1780 | if (class_data == NULL) { |
| 1781 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1782 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1783 | ClassDataItemIterator it(dex_file, class_data); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1784 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1785 | if (it.NumStaticFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1786 | mirror::ObjectArray<mirror::ArtField>* statics = AllocArtFieldArray(self, it.NumStaticFields()); |
| 1787 | if (UNLIKELY(statics == NULL)) { |
| 1788 | CHECK(self->IsExceptionPending()); // OOME. |
| 1789 | return; |
| 1790 | } |
| 1791 | klass->SetSFields(statics); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1792 | } |
| 1793 | if (it.NumInstanceFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1794 | mirror::ObjectArray<mirror::ArtField>* fields = |
| 1795 | AllocArtFieldArray(self, it.NumInstanceFields()); |
| 1796 | if (UNLIKELY(fields == NULL)) { |
| 1797 | CHECK(self->IsExceptionPending()); // OOME. |
| 1798 | return; |
| 1799 | } |
| 1800 | klass->SetIFields(fields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1801 | } |
| 1802 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1803 | SirtRef<mirror::ArtField> sfield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1804 | if (UNLIKELY(sfield.get() == NULL)) { |
| 1805 | CHECK(self->IsExceptionPending()); // OOME. |
| 1806 | return; |
| 1807 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1808 | klass->SetStaticField(i, sfield.get()); |
| 1809 | LoadField(dex_file, it, klass, sfield); |
| 1810 | } |
| 1811 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1812 | SirtRef<mirror::ArtField> ifield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1813 | if (UNLIKELY(ifield.get() == NULL)) { |
| 1814 | CHECK(self->IsExceptionPending()); // OOME. |
| 1815 | return; |
| 1816 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1817 | klass->SetInstanceField(i, ifield.get()); |
| 1818 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1819 | } |
| 1820 | |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1821 | UniquePtr<const OatFile::OatClass> oat_class; |
| 1822 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1823 | oat_class.reset(GetOatClass(dex_file, klass->GetDexClassDefIndex())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1824 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1825 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1826 | // Load methods. |
| 1827 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1828 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1829 | mirror::ObjectArray<mirror::ArtMethod>* directs = |
| 1830 | AllocArtMethodArray(self, it.NumDirectMethods()); |
| 1831 | if (UNLIKELY(directs == NULL)) { |
| 1832 | CHECK(self->IsExceptionPending()); // OOME. |
| 1833 | return; |
| 1834 | } |
| 1835 | klass->SetDirectMethods(directs); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1836 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1837 | if (it.NumVirtualMethods() != 0) { |
| 1838 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1839 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = |
| 1840 | AllocArtMethodArray(self, it.NumVirtualMethods()); |
| 1841 | if (UNLIKELY(virtuals == NULL)) { |
| 1842 | CHECK(self->IsExceptionPending()); // OOME. |
| 1843 | return; |
| 1844 | } |
| 1845 | klass->SetVirtualMethods(virtuals); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1846 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1847 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1848 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1849 | SirtRef<mirror::ArtMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1850 | if (UNLIKELY(method.get() == NULL)) { |
| 1851 | CHECK(self->IsExceptionPending()); // OOME. |
| 1852 | return; |
| 1853 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1854 | klass->SetDirectMethod(i, method.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1855 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1856 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1857 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1858 | method->SetMethodIndex(class_def_method_index); |
| 1859 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1860 | } |
| 1861 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1862 | SirtRef<mirror::ArtMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1863 | if (UNLIKELY(method.get() == NULL)) { |
| 1864 | CHECK(self->IsExceptionPending()); // OOME. |
| 1865 | return; |
| 1866 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1867 | klass->SetVirtualMethod(i, method.get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1868 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1869 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1870 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1871 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1872 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1873 | } |
| 1874 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1875 | } |
| 1876 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1877 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1878 | const SirtRef<mirror::Class>& klass, |
| 1879 | const SirtRef<mirror::ArtField>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1880 | uint32_t field_idx = it.GetMemberIndex(); |
| 1881 | dst->SetDexFieldIndex(field_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1882 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1883 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1884 | } |
| 1885 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1886 | mirror::ArtMethod* ClassLinker::LoadMethod(Thread* self, const DexFile& dex_file, |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1887 | const ClassDataItemIterator& it, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1888 | const SirtRef<mirror::Class>& klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1889 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1890 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1891 | const char* method_name = dex_file.StringDataByIdx(method_id.name_idx_); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1892 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1893 | mirror::ArtMethod* dst = AllocArtMethod(self); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1894 | if (UNLIKELY(dst == NULL)) { |
| 1895 | CHECK(self->IsExceptionPending()); // OOME. |
| 1896 | return NULL; |
| 1897 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1898 | DCHECK(dst->IsArtMethod()) << PrettyDescriptor(dst->GetClass()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1899 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1900 | const char* old_cause = self->StartAssertNoThreadSuspension("LoadMethod"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1901 | dst->SetDexMethodIndex(dex_method_idx); |
| 1902 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1903 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1904 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1905 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1906 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1907 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1908 | dst->SetDexCacheInitializedStaticStorage(klass->GetDexCache()->GetInitializedStaticStorage()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1909 | |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1910 | uint32_t access_flags = it.GetMemberAccessFlags(); |
| 1911 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1912 | if (UNLIKELY(strcmp("finalize", method_name) == 0)) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1913 | // Set finalizable flag on declaring class. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1914 | if (strcmp("V", dex_file.GetShorty(method_id.proto_idx_)) == 0) { |
| 1915 | // Void return type. |
| 1916 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 1917 | klass->SetFinalizable(); |
| 1918 | } else { |
| 1919 | ClassHelper kh(klass.get()); |
| 1920 | const char* klass_descriptor = kh.GetDescriptor(); |
| 1921 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 1922 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 1923 | // subclasses, so we exclude it here. |
| 1924 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 1925 | // empty. |
| 1926 | if ((strcmp("Ljava/lang/Object;", klass_descriptor) != 0) && |
| 1927 | (strcmp("Ljava/lang/Enum;", klass_descriptor) != 0)) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1928 | klass->SetFinalizable(); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1929 | } |
| 1930 | } |
| 1931 | } |
| 1932 | } else if (method_name[0] == '<') { |
| 1933 | // Fix broken access flags for initializers. Bug 11157540. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1934 | bool is_init = (strcmp("<init>", method_name) == 0); |
| 1935 | bool is_clinit = !is_init && (strcmp("<clinit>", method_name) == 0); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1936 | if (UNLIKELY(!is_init && !is_clinit)) { |
| 1937 | LOG(WARNING) << "Unexpected '<' at start of method name " << method_name; |
| 1938 | } else { |
| 1939 | if (UNLIKELY((access_flags & kAccConstructor) == 0)) { |
| 1940 | LOG(WARNING) << method_name << " didn't have expected constructor access flag in class " |
| 1941 | << PrettyDescriptor(klass.get()) << " in dex file " << dex_file.GetLocation(); |
| 1942 | access_flags |= kAccConstructor; |
| 1943 | } |
| 1944 | } |
| 1945 | } |
| 1946 | dst->SetAccessFlags(access_flags); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1947 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1948 | self->EndAssertNoThreadSuspension(old_cause); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1949 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1950 | } |
| 1951 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1952 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1953 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1954 | SirtRef<mirror::DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1955 | 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] | 1956 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1957 | } |
| 1958 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1959 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, |
| 1960 | const SirtRef<mirror::DexCache>& dex_cache) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1961 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1962 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1963 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1964 | } |
| 1965 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1966 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1967 | dex_lock_.AssertSharedHeld(Thread::Current()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1968 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1969 | if (dex_caches_[i]->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1970 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1971 | } |
| 1972 | } |
| 1973 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1974 | } |
| 1975 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1976 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1977 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 1978 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1979 | } |
| 1980 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1981 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, |
| 1982 | const SirtRef<mirror::DexCache>& dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1983 | dex_lock_.AssertExclusiveHeld(Thread::Current()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1984 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 1985 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())) |
| 1986 | << dex_cache->GetLocation()->ToModifiedUtf8() << " " << dex_file.GetLocation(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1987 | dex_caches_.push_back(dex_cache.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1988 | dex_cache->SetDexFile(&dex_file); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1989 | dex_caches_dirty_ = true; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1990 | } |
| 1991 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1992 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1993 | Thread* self = Thread::Current(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1994 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1995 | ReaderMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1996 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1997 | return; |
| 1998 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1999 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2000 | // Don't alloc while holding the lock, since allocation may need to |
| 2001 | // suspend all threads and another thread may need the dex_lock_ to |
| 2002 | // get to a suspend point. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2003 | SirtRef<mirror::DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2004 | 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] | 2005 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2006 | WriterMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 2007 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 2008 | return; |
| 2009 | } |
| 2010 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2011 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2012 | } |
| 2013 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2014 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, |
| 2015 | const SirtRef<mirror::DexCache>& dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2016 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2017 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2018 | } |
| 2019 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2020 | mirror::DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2021 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2022 | // Search assuming unique-ness of dex file. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2023 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2024 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2025 | if (dex_cache->GetDexFile() == &dex_file) { |
| 2026 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2027 | } |
| 2028 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2029 | // Search matching by location name. |
| 2030 | std::string location(dex_file.GetLocation()); |
| 2031 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2032 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2033 | if (dex_cache->GetDexFile()->GetLocation() == location) { |
| 2034 | return dex_cache; |
| 2035 | } |
| 2036 | } |
| 2037 | // Failure, dump diagnostic and abort. |
| 2038 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2039 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2040 | LOG(ERROR) << "Registered dex file " << i << " = " << dex_cache->GetDexFile()->GetLocation(); |
| 2041 | } |
| 2042 | LOG(FATAL) << "Failed to find DexCache for DexFile " << location; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2043 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2044 | } |
| 2045 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2046 | void ClassLinker::FixupDexCaches(mirror::ArtMethod* resolution_method) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2047 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2048 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2049 | dex_caches_[i]->Fixup(resolution_method); |
| 2050 | } |
| 2051 | } |
| 2052 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2053 | mirror::Class* ClassLinker::CreatePrimitiveClass(Thread* self, Primitive::Type type) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2054 | mirror::Class* klass = AllocClass(self, sizeof(mirror::Class)); |
| 2055 | if (UNLIKELY(klass == NULL)) { |
| 2056 | return NULL; |
| 2057 | } |
| 2058 | return InitializePrimitiveClass(klass, type); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2059 | } |
| 2060 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2061 | mirror::Class* ClassLinker::InitializePrimitiveClass(mirror::Class* primitive_class, |
| 2062 | Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2063 | CHECK(primitive_class != NULL); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2064 | // Must hold lock on object when initializing. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2065 | Thread* self = Thread::Current(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2066 | SirtRef<mirror::Class> sirt_class(self, primitive_class); |
| 2067 | ObjectLock<mirror::Class> lock(self, &sirt_class); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2068 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2069 | primitive_class->SetPrimitiveType(type); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2070 | primitive_class->SetStatus(mirror::Class::kStatusInitialized, self); |
| 2071 | const char* descriptor = Primitive::Descriptor(type); |
| 2072 | mirror::Class* existing = InsertClass(descriptor, primitive_class, Hash(descriptor)); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2073 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2074 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 2075 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2076 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2077 | // Create an array class (i.e. the class object for the array, not the |
| 2078 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 2079 | // "[Ljava/lang/String;". |
| 2080 | // |
| 2081 | // If "descriptor" refers to an array of primitives, look up the |
| 2082 | // primitive type's internally-generated class object. |
| 2083 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2084 | // "class_loader" is the class loader of the class that's referring to |
| 2085 | // us. It's used to ensure that we're looking for the element type in |
| 2086 | // the right context. It does NOT become the class loader for the |
| 2087 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2088 | // |
| 2089 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2090 | mirror::Class* ClassLinker::CreateArrayClass(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2091 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2092 | // Identify the underlying component type |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2093 | CHECK_EQ('[', descriptor[0]); |
| 2094 | mirror::Class* component_type = FindClass(descriptor + 1, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2095 | if (component_type == NULL) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2096 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2097 | return NULL; |
| 2098 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2099 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2100 | // See if the component type is already loaded. Array classes are |
| 2101 | // always associated with the class loader of their underlying |
| 2102 | // element type -- an array of Strings goes with the loader for |
| 2103 | // java/lang/String -- so we need to look for it there. (The |
| 2104 | // caller should have checked for the existence of the class |
| 2105 | // before calling here, but they did so with *their* class loader, |
| 2106 | // not the component type's loader.) |
| 2107 | // |
| 2108 | // If we find it, the caller adds "loader" to the class' initiating |
| 2109 | // loader list, which should prevent us from going through this again. |
| 2110 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2111 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2112 | // are the same, because our caller (FindClass) just did the |
| 2113 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 2114 | // because we effectively do this lookup again when we add the new |
| 2115 | // class to the hash table --- necessary because of possible races with |
| 2116 | // other threads.) |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2117 | if (class_loader.get() != component_type->GetClassLoader()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2118 | mirror::Class* new_class = LookupClass(descriptor, component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2119 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2120 | return new_class; |
| 2121 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2122 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2123 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2124 | // Fill out the fields in the Class. |
| 2125 | // |
| 2126 | // It is possible to execute some methods against arrays, because |
| 2127 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 2128 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 2129 | // |
| 2130 | // Array classes are simple enough that we don't need to do a full |
| 2131 | // link step. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2132 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2133 | SirtRef<mirror::Class> new_class(self, NULL); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2134 | if (UNLIKELY(!init_done_)) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2135 | // Classes that were hand created, ie not by FindSystemClass |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2136 | if (strcmp(descriptor, "[Ljava/lang/Class;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2137 | new_class.reset(GetClassRoot(kClassArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2138 | } else if (strcmp(descriptor, "[Ljava/lang/Object;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2139 | new_class.reset(GetClassRoot(kObjectArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2140 | } else if (strcmp(descriptor, class_roots_descriptors_[kJavaLangStringArrayClass]) == 0) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2141 | new_class.reset(GetClassRoot(kJavaLangStringArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2142 | } else if (strcmp(descriptor, |
| 2143 | class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]) == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2144 | new_class.reset(GetClassRoot(kJavaLangReflectArtMethodArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2145 | } else if (strcmp(descriptor, |
| 2146 | class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]) == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2147 | new_class.reset(GetClassRoot(kJavaLangReflectArtFieldArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2148 | } else if (strcmp(descriptor, "[C") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2149 | new_class.reset(GetClassRoot(kCharArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2150 | } else if (strcmp(descriptor, "[I") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2151 | new_class.reset(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2152 | } |
| 2153 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2154 | if (new_class.get() == NULL) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2155 | new_class.reset(AllocClass(self, sizeof(mirror::Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2156 | if (new_class.get() == NULL) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2157 | return NULL; |
| 2158 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2159 | new_class->SetComponentType(component_type); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2160 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2161 | 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] | 2162 | DCHECK(new_class->GetComponentType() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2163 | mirror::Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2164 | new_class->SetSuperClass(java_lang_Object); |
| 2165 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2166 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2167 | new_class->SetClassLoader(component_type->GetClassLoader()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2168 | new_class->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2169 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 2170 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2171 | |
| 2172 | |
| 2173 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 2174 | // interfaces. We need to set that up here, so that stuff like |
| 2175 | // "instanceof" works right. |
| 2176 | // |
| 2177 | // Note: The GC could run during the call to FindSystemClass, |
| 2178 | // so we need to make sure the class object is GC-valid while we're in |
| 2179 | // there. Do this by clearing the interface list so the GC will just |
| 2180 | // think that the entries are null. |
| 2181 | |
| 2182 | |
| 2183 | // Use the single, global copies of "interfaces" and "iftable" |
| 2184 | // (remember not to free them for arrays). |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 2185 | CHECK(array_iftable_ != NULL); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2186 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2187 | |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2188 | // Inherit access flags from the component type. |
| 2189 | int access_flags = new_class->GetComponentType()->GetAccessFlags(); |
| 2190 | // Lose any implementation detail flags; in particular, arrays aren't finalizable. |
| 2191 | access_flags &= kAccJavaFlagsMask; |
| 2192 | // 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] | 2193 | // and remove "interface". |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2194 | access_flags |= kAccAbstract | kAccFinal; |
| 2195 | access_flags &= ~kAccInterface; |
| 2196 | |
| 2197 | new_class->SetAccessFlags(access_flags); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2198 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2199 | mirror::Class* existing = InsertClass(descriptor, new_class.get(), Hash(descriptor)); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2200 | if (existing == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2201 | return new_class.get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2202 | } |
| 2203 | // Another thread must have loaded the class after we |
| 2204 | // started but before we finished. Abandon what we've |
| 2205 | // done. |
| 2206 | // |
| 2207 | // (Yes, this happens.) |
| 2208 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2209 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2210 | } |
| 2211 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2212 | mirror::Class* ClassLinker::FindPrimitiveClass(char type) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2213 | switch (Primitive::GetType(type)) { |
| 2214 | case Primitive::kPrimByte: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2215 | return GetClassRoot(kPrimitiveByte); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2216 | case Primitive::kPrimChar: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2217 | return GetClassRoot(kPrimitiveChar); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2218 | case Primitive::kPrimDouble: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2219 | return GetClassRoot(kPrimitiveDouble); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2220 | case Primitive::kPrimFloat: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2221 | return GetClassRoot(kPrimitiveFloat); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2222 | case Primitive::kPrimInt: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2223 | return GetClassRoot(kPrimitiveInt); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2224 | case Primitive::kPrimLong: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2225 | return GetClassRoot(kPrimitiveLong); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2226 | case Primitive::kPrimShort: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2227 | return GetClassRoot(kPrimitiveShort); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2228 | case Primitive::kPrimBoolean: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2229 | return GetClassRoot(kPrimitiveBoolean); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2230 | case Primitive::kPrimVoid: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2231 | return GetClassRoot(kPrimitiveVoid); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2232 | case Primitive::kPrimNot: |
| 2233 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 2234 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2235 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2236 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2237 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2238 | } |
| 2239 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2240 | mirror::Class* ClassLinker::InsertClass(const char* descriptor, mirror::Class* klass, |
| 2241 | size_t hash) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2242 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2243 | mirror::DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2244 | std::string source; |
| 2245 | if (dex_cache != NULL) { |
| 2246 | source += " from "; |
| 2247 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 2248 | } |
| 2249 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 2250 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2251 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 2252 | mirror::Class* existing = |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2253 | LookupClassFromTableLocked(descriptor, klass->GetClassLoader(), hash); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2254 | if (existing != NULL) { |
| 2255 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2256 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2257 | if (kIsDebugBuild && klass->GetClassLoader() == NULL && dex_cache_image_class_lookup_required_) { |
| 2258 | // Check a class loaded with the system class loader matches one in the image if the class |
| 2259 | // is in the image. |
| 2260 | existing = LookupClassFromImage(descriptor); |
| 2261 | if (existing != NULL) { |
| 2262 | CHECK(klass == existing); |
| 2263 | } |
| 2264 | } |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 2265 | Runtime::Current()->GetHeap()->VerifyObject(klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2266 | class_table_.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 2267 | class_table_dirty_ = true; |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2268 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2269 | } |
| 2270 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2271 | bool ClassLinker::RemoveClass(const char* descriptor, const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2272 | size_t hash = Hash(descriptor); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2273 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2274 | 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] | 2275 | ++it) { |
| 2276 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2277 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2278 | if ((klass->GetClassLoader() == class_loader) && |
| 2279 | (strcmp(descriptor, kh.GetDescriptor()) == 0)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2280 | class_table_.erase(it); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2281 | return true; |
| 2282 | } |
| 2283 | } |
| 2284 | return false; |
| 2285 | } |
| 2286 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2287 | mirror::Class* ClassLinker::LookupClass(const char* descriptor, |
| 2288 | const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2289 | size_t hash = Hash(descriptor); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2290 | { |
| 2291 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
| 2292 | mirror::Class* result = LookupClassFromTableLocked(descriptor, class_loader, hash); |
| 2293 | if (result != NULL) { |
| 2294 | return result; |
| 2295 | } |
Sameer Abu Asal | 2c6de22 | 2013-05-02 17:38:59 -0700 | [diff] [blame] | 2296 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2297 | if (class_loader != NULL || !dex_cache_image_class_lookup_required_) { |
| 2298 | return NULL; |
| 2299 | } else { |
| 2300 | // Lookup failed but need to search dex_caches_. |
| 2301 | mirror::Class* result = LookupClassFromImage(descriptor); |
| 2302 | if (result != NULL) { |
| 2303 | InsertClass(descriptor, result, hash); |
| 2304 | } else { |
| 2305 | // Searching the image dex files/caches failed, we don't want to get into this situation |
| 2306 | // often as map searches are faster, so after kMaxFailedDexCacheLookups move all image |
| 2307 | // classes into the class table. |
| 2308 | const int32_t kMaxFailedDexCacheLookups = 1000; |
| 2309 | if (++failed_dex_cache_class_lookups_ > kMaxFailedDexCacheLookups) { |
| 2310 | MoveImageClassesToClassTable(); |
| 2311 | } |
| 2312 | } |
| 2313 | return result; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2314 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2315 | } |
| 2316 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2317 | mirror::Class* ClassLinker::LookupClassFromTableLocked(const char* descriptor, |
| 2318 | const mirror::ClassLoader* class_loader, |
| 2319 | size_t hash) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2320 | auto end = class_table_.end(); |
| 2321 | 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] | 2322 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2323 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2324 | if ((klass->GetClassLoader() == class_loader) && |
| 2325 | (strcmp(descriptor, kh.GetDescriptor()) == 0)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2326 | if (kIsDebugBuild) { |
| 2327 | // Check for duplicates in the table. |
| 2328 | for (++it; it != end && it->first == hash; ++it) { |
| 2329 | mirror::Class* klass2 = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2330 | ClassHelper kh(klass2); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2331 | CHECK(!((klass2->GetClassLoader() == class_loader) && |
| 2332 | (strcmp(descriptor, kh.GetDescriptor()) == 0))) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2333 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
| 2334 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2335 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2336 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2337 | return klass; |
| 2338 | } |
| 2339 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2340 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2341 | } |
| 2342 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2343 | static mirror::ObjectArray<mirror::DexCache>* GetImageDexCaches() |
| 2344 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2345 | gc::space::ImageSpace* image = Runtime::Current()->GetHeap()->GetImageSpace(); |
| 2346 | CHECK(image != NULL); |
| 2347 | mirror::Object* root = image->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 2348 | return root->AsObjectArray<mirror::DexCache>(); |
| 2349 | } |
| 2350 | |
| 2351 | void ClassLinker::MoveImageClassesToClassTable() { |
| 2352 | Thread* self = Thread::Current(); |
| 2353 | WriterMutexLock mu(self, *Locks::classlinker_classes_lock_); |
| 2354 | if (!dex_cache_image_class_lookup_required_) { |
| 2355 | return; // All dex cache classes are already in the class table. |
| 2356 | } |
| 2357 | const char* old_no_suspend_cause = |
| 2358 | self->StartAssertNoThreadSuspension("Moving image classes to class table"); |
| 2359 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2360 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
| 2361 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2362 | mirror::ObjectArray<mirror::Class>* types = dex_cache->GetResolvedTypes(); |
| 2363 | for (int32_t j = 0; j < types->GetLength(); j++) { |
| 2364 | mirror::Class* klass = types->Get(j); |
| 2365 | if (klass != NULL) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2366 | ClassHelper kh(klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2367 | DCHECK(klass->GetClassLoader() == NULL); |
| 2368 | const char* descriptor = kh.GetDescriptor(); |
| 2369 | size_t hash = Hash(descriptor); |
| 2370 | mirror::Class* existing = LookupClassFromTableLocked(descriptor, NULL, hash); |
| 2371 | if (existing != NULL) { |
| 2372 | CHECK(existing == klass) << PrettyClassAndClassLoader(existing) << " != " |
| 2373 | << PrettyClassAndClassLoader(klass); |
| 2374 | } else { |
| 2375 | class_table_.insert(std::make_pair(hash, klass)); |
| 2376 | } |
| 2377 | } |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2378 | } |
| 2379 | } |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 2380 | class_table_dirty_ = true; |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2381 | dex_cache_image_class_lookup_required_ = false; |
| 2382 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2383 | } |
| 2384 | |
| 2385 | mirror::Class* ClassLinker::LookupClassFromImage(const char* descriptor) { |
| 2386 | Thread* self = Thread::Current(); |
| 2387 | const char* old_no_suspend_cause = |
| 2388 | self->StartAssertNoThreadSuspension("Image class lookup"); |
| 2389 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
| 2390 | for (int32_t i = 0; i < dex_caches->GetLength(); ++i) { |
| 2391 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2392 | const DexFile* dex_file = dex_cache->GetDexFile(); |
| 2393 | // First search using the class def map, but don't bother for non-class types. |
| 2394 | if (descriptor[0] == 'L') { |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2395 | const DexFile::StringId* descriptor_string_id = dex_file->FindStringId(descriptor); |
| 2396 | if (descriptor_string_id != NULL) { |
| 2397 | const DexFile::TypeId* type_id = |
| 2398 | dex_file->FindTypeId(dex_file->GetIndexForStringId(*descriptor_string_id)); |
| 2399 | if (type_id != NULL) { |
| 2400 | mirror::Class* klass = dex_cache->GetResolvedType(dex_file->GetIndexForTypeId(*type_id)); |
| 2401 | if (klass != NULL) { |
| 2402 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2403 | return klass; |
| 2404 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2405 | } |
| 2406 | } |
| 2407 | } |
| 2408 | // Now try binary searching the string/type index. |
| 2409 | const DexFile::StringId* string_id = dex_file->FindStringId(descriptor); |
| 2410 | if (string_id != NULL) { |
| 2411 | const DexFile::TypeId* type_id = |
| 2412 | dex_file->FindTypeId(dex_file->GetIndexForStringId(*string_id)); |
| 2413 | if (type_id != NULL) { |
| 2414 | uint16_t type_idx = dex_file->GetIndexForTypeId(*type_id); |
| 2415 | mirror::Class* klass = dex_cache->GetResolvedType(type_idx); |
| 2416 | if (klass != NULL) { |
| 2417 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2418 | return klass; |
| 2419 | } |
| 2420 | } |
| 2421 | } |
| 2422 | } |
| 2423 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2424 | return NULL; |
| 2425 | } |
| 2426 | |
| 2427 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<mirror::Class*>& result) { |
| 2428 | result.clear(); |
| 2429 | if (dex_cache_image_class_lookup_required_) { |
| 2430 | MoveImageClassesToClassTable(); |
| 2431 | } |
| 2432 | size_t hash = Hash(descriptor); |
| 2433 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2434 | for (auto it = class_table_.lower_bound(hash), end = class_table_.end(); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 2435 | it != end && it->first == hash; ++it) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2436 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2437 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2438 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2439 | result.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2440 | } |
| 2441 | } |
| 2442 | } |
| 2443 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2444 | void ClassLinker::VerifyClass(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2445 | // TODO: assert that the monitor on the Class is held |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2446 | Thread* self = Thread::Current(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2447 | ObjectLock<mirror::Class> lock(self, &klass); |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2448 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2449 | // Don't attempt to re-verify if already sufficiently verified. |
| 2450 | if (klass->IsVerified() || |
| 2451 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2452 | return; |
| 2453 | } |
| 2454 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2455 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2456 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2457 | if (klass->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2458 | ThrowEarlierClassFailure(klass.get()); |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2459 | return; |
| 2460 | } |
| 2461 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2462 | if (klass->GetStatus() == mirror::Class::kStatusResolved) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2463 | klass->SetStatus(mirror::Class::kStatusVerifying, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2464 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2465 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime) |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2466 | << PrettyClass(klass.get()); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2467 | CHECK(!Runtime::Current()->IsCompiler()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2468 | klass->SetStatus(mirror::Class::kStatusVerifyingAtRuntime, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2469 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2470 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2471 | // Verify super class. |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2472 | SirtRef<mirror::Class> super(self, klass->GetSuperClass()); |
| 2473 | if (super.get() != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2474 | // Acquire lock to prevent races on verifying the super class. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2475 | ObjectLock<mirror::Class> lock(self, &super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2476 | |
| 2477 | if (!super->IsVerified() && !super->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2478 | VerifyClass(super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2479 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2480 | if (!super->IsCompileTimeVerified()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2481 | std::string error_msg(StringPrintf("Rejecting class %s that attempts to sub-class erroneous class %s", |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2482 | PrettyDescriptor(klass.get()).c_str(), |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2483 | PrettyDescriptor(super.get()).c_str())); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2484 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2485 | SirtRef<mirror::Throwable> cause(self, self->GetException(NULL)); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2486 | if (cause.get() != nullptr) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2487 | self->ClearException(); |
| 2488 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2489 | ThrowVerifyError(klass.get(), "%s", error_msg.c_str()); |
| 2490 | if (cause.get() != nullptr) { |
| 2491 | self->GetException(nullptr)->SetCause(cause.get()); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2492 | } |
Jeff Hao | 22cb09b | 2013-12-12 14:29:15 -0800 | [diff] [blame] | 2493 | ClassReference ref(klass->GetDexCache()->GetDexFile(), klass->GetDexClassDefIndex()); |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame^] | 2494 | if (Runtime::Current()->IsCompiler()) { |
| 2495 | Runtime::Current()->GetCompilerCallbacks()->ClassRejected(ref); |
| 2496 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2497 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2498 | return; |
| 2499 | } |
| 2500 | } |
| 2501 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2502 | // 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] | 2503 | const DexFile& dex_file = *klass->GetDexCache()->GetDexFile(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2504 | mirror::Class::Status oat_file_class_status(mirror::Class::kStatusNotReady); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2505 | bool preverified = VerifyClassUsingOatFile(dex_file, klass.get(), oat_file_class_status); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2506 | if (oat_file_class_status == mirror::Class::kStatusError) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2507 | VLOG(class_linker) << "Skipping runtime verification of erroneous class " |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2508 | << PrettyDescriptor(klass.get()) << " in " |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2509 | << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2510 | ThrowVerifyError(klass.get(), "Rejecting class %s because it failed compile-time verification", |
| 2511 | PrettyDescriptor(klass.get()).c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2512 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2513 | return; |
| 2514 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2515 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2516 | std::string error_msg; |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2517 | if (!preverified) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2518 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass.get(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2519 | Runtime::Current()->IsCompiler(), |
| 2520 | &error_msg); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2521 | } |
| 2522 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2523 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2524 | VLOG(class_linker) << "Soft verification failure in class " << PrettyDescriptor(klass.get()) |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2525 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2526 | << " because: " << error_msg; |
| 2527 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2528 | self->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2529 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2530 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2531 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2532 | // Even though there were no verifier failures we need to respect whether the super-class |
| 2533 | // was verified or requiring runtime reverification. |
| 2534 | if (super.get() == NULL || super->IsVerified()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2535 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2536 | } else { |
| 2537 | CHECK_EQ(super->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2538 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2539 | // Pretend a soft failure occured so that we don't consider the class verified below. |
| 2540 | verifier_failure = verifier::MethodVerifier::kSoftFailure; |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2541 | } |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2542 | } else { |
| 2543 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2544 | // Soft failures at compile time should be retried at runtime. Soft |
| 2545 | // failures at runtime will be handled by slow paths in the generated |
| 2546 | // code. Set status accordingly. |
| 2547 | if (Runtime::Current()->IsCompiler()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2548 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2549 | } else { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2550 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2551 | } |
| 2552 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2553 | } else { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2554 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass.get()) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2555 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2556 | << " because: " << error_msg; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2557 | self->AssertNoPendingException(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2558 | ThrowVerifyError(klass.get(), "%s", error_msg.c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2559 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2560 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2561 | if (preverified || verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2562 | // 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] | 2563 | // Let the interpreter know it by setting the kAccPreverified flag onto each |
| 2564 | // method. |
| 2565 | // Note: we're going here during compilation and at runtime. When we set the |
| 2566 | // kAccPreverified flag when compiling image classes, the flag is recorded |
| 2567 | // in the image and is set when loading the image. |
| 2568 | klass->SetPreverifiedFlagOnAllMethods(); |
| 2569 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2570 | } |
| 2571 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2572 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, mirror::Class* klass, |
| 2573 | mirror::Class::Status& oat_file_class_status) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2574 | // If we're compiling, we can only verify the class using the oat file if |
| 2575 | // we are not compiling the image or if the class we're verifying is not part of |
| 2576 | // the app. In other words, we will only check for preverification of bootclasspath |
| 2577 | // classes. |
| 2578 | if (Runtime::Current()->IsCompiler()) { |
| 2579 | // Are we compiling the bootclasspath? |
| 2580 | if (!Runtime::Current()->UseCompileTimeClassPath()) { |
| 2581 | return false; |
| 2582 | } |
| 2583 | // We are compiling an app (not the image). |
| 2584 | |
| 2585 | // Is this an app class? (I.e. not a bootclasspath class) |
| 2586 | if (klass->GetClassLoader() != NULL) { |
| 2587 | return false; |
| 2588 | } |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2589 | } |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2590 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2591 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Anwar Ghuloum | ad256bb | 2013-07-18 14:58:55 -0700 | [diff] [blame] | 2592 | // Make this work with gtests, which do not set up the image properly. |
| 2593 | // TODO: we should clean up gtests to set up the image path properly. |
| 2594 | if (Runtime::Current()->IsCompiler() && (oat_file == NULL)) { |
| 2595 | return false; |
| 2596 | } |
| 2597 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2598 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 2599 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 2600 | 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] | 2601 | &dex_location_checksum); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2602 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2603 | uint16_t class_def_index = klass->GetDexClassDefIndex(); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2604 | UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(class_def_index)); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2605 | CHECK(oat_class.get() != NULL) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2606 | << dex_file.GetLocation() << " " << PrettyClass(klass) << " " |
| 2607 | << ClassHelper(klass).GetDescriptor(); |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2608 | oat_file_class_status = oat_class->GetStatus(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2609 | if (oat_file_class_status == mirror::Class::kStatusVerified || |
| 2610 | oat_file_class_status == mirror::Class::kStatusInitialized) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2611 | return true; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2612 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2613 | if (oat_file_class_status == mirror::Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2614 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2615 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2616 | // class ... { |
| 2617 | // Foo x; |
| 2618 | // .... () { |
| 2619 | // if (...) { |
| 2620 | // v1 gets assigned a type of resolved class Foo |
| 2621 | // } else { |
| 2622 | // v1 gets assigned a type of unresolved class Bar |
| 2623 | // } |
| 2624 | // iput x = v1 |
| 2625 | // } } |
| 2626 | // when we merge v1 following the if-the-else it results in Conflict |
| 2627 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2628 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2629 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2630 | // at compile time). |
| 2631 | return false; |
| 2632 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2633 | if (oat_file_class_status == mirror::Class::kStatusError) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2634 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2635 | // in the class. These errors are unrecoverable. |
| 2636 | return false; |
| 2637 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2638 | if (oat_file_class_status == mirror::Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2639 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2640 | // not loading the class. |
| 2641 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2642 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2643 | return false; |
| 2644 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2645 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2646 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " |
| 2647 | << ClassHelper(klass).GetDescriptor(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2648 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2649 | return false; |
| 2650 | } |
| 2651 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2652 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, |
| 2653 | const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2654 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 2655 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 2656 | } |
| 2657 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 2658 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 2659 | } |
| 2660 | } |
| 2661 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2662 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2663 | mirror::ArtMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2664 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 2665 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 2666 | if (code_item == NULL) { |
| 2667 | return; // native or abstract method |
| 2668 | } |
| 2669 | if (code_item->tries_size_ == 0) { |
| 2670 | return; // nothing to process |
| 2671 | } |
| 2672 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 2673 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 2674 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 2675 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 2676 | CatchHandlerIterator iterator(handlers_ptr); |
| 2677 | for (; iterator.HasNext(); iterator.Next()) { |
| 2678 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 2679 | // unresolved exception types will be ignored by exception delivery |
| 2680 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2681 | mirror::Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2682 | if (exception_type == NULL) { |
| 2683 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2684 | Thread::Current()->ClearException(); |
| 2685 | } |
| 2686 | } |
| 2687 | } |
| 2688 | handlers_ptr = iterator.EndDataPointer(); |
| 2689 | } |
| 2690 | } |
| 2691 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2692 | static void CheckProxyConstructor(mirror::ArtMethod* constructor); |
| 2693 | static void CheckProxyMethod(mirror::ArtMethod* method, |
| 2694 | SirtRef<mirror::ArtMethod>& prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2695 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2696 | mirror::Class* ClassLinker::CreateProxyClass(ScopedObjectAccess& soa, jstring name, |
| 2697 | jobjectArray interfaces, jobject loader, |
| 2698 | jobjectArray methods, jobjectArray throws) { |
| 2699 | Thread* self = soa.Self(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2700 | SirtRef<mirror::Class> klass(self, AllocClass(self, GetClassRoot(kJavaLangClass), |
| 2701 | sizeof(mirror::SynthesizedProxyClass))); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2702 | if (klass.get() == NULL) { |
| 2703 | CHECK(self->IsExceptionPending()); // OOME. |
| 2704 | return NULL; |
| 2705 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2706 | DCHECK(klass->GetClass() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2707 | klass->SetObjectSize(sizeof(mirror::Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2708 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2709 | klass->SetClassLoader(soa.Decode<mirror::ClassLoader*>(loader)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2710 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2711 | klass->SetName(soa.Decode<mirror::String*>(name)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2712 | mirror::Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2713 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2714 | klass->SetStatus(mirror::Class::kStatusIdx, self); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2715 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2716 | // Instance fields are inherited, but we add a couple of static fields... |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2717 | { |
| 2718 | mirror::ObjectArray<mirror::ArtField>* sfields = AllocArtFieldArray(self, 2); |
| 2719 | if (UNLIKELY(sfields == NULL)) { |
| 2720 | CHECK(self->IsExceptionPending()); // OOME. |
| 2721 | return NULL; |
| 2722 | } |
| 2723 | klass->SetSFields(sfields); |
| 2724 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2725 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 2726 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2727 | SirtRef<mirror::ArtField> interfaces_sfield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2728 | if (UNLIKELY(interfaces_sfield.get() == NULL)) { |
| 2729 | CHECK(self->IsExceptionPending()); // OOME. |
| 2730 | return NULL; |
| 2731 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2732 | klass->SetStaticField(0, interfaces_sfield.get()); |
| 2733 | interfaces_sfield->SetDexFieldIndex(0); |
| 2734 | interfaces_sfield->SetDeclaringClass(klass.get()); |
| 2735 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 2736 | // 2. Create a static field 'throws' that holds exceptions thrown by our methods. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2737 | SirtRef<mirror::ArtField> throws_sfield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2738 | if (UNLIKELY(throws_sfield.get() == NULL)) { |
| 2739 | CHECK(self->IsExceptionPending()); // OOME. |
| 2740 | return NULL; |
| 2741 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2742 | klass->SetStaticField(1, throws_sfield.get()); |
| 2743 | throws_sfield->SetDexFieldIndex(1); |
| 2744 | throws_sfield->SetDeclaringClass(klass.get()); |
| 2745 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2746 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2747 | // Proxies have 1 direct method, the constructor |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2748 | { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2749 | mirror::ObjectArray<mirror::ArtMethod>* directs = AllocArtMethodArray(self, 1); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2750 | if (UNLIKELY(directs == NULL)) { |
| 2751 | CHECK(self->IsExceptionPending()); // OOME. |
| 2752 | return NULL; |
| 2753 | } |
| 2754 | klass->SetDirectMethods(directs); |
| 2755 | mirror::ArtMethod* constructor = CreateProxyConstructor(self, klass, proxy_class); |
| 2756 | if (UNLIKELY(constructor == NULL)) { |
| 2757 | CHECK(self->IsExceptionPending()); // OOME. |
| 2758 | return NULL; |
| 2759 | } |
| 2760 | klass->SetDirectMethod(0, constructor); |
| 2761 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2762 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2763 | // Create virtual method using specified prototypes. |
| 2764 | size_t num_virtual_methods = |
| 2765 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods)->GetLength(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2766 | { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2767 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = AllocArtMethodArray(self, num_virtual_methods); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2768 | if (UNLIKELY(virtuals == NULL)) { |
| 2769 | CHECK(self->IsExceptionPending()); // OOME. |
| 2770 | return NULL; |
| 2771 | } |
| 2772 | klass->SetVirtualMethods(virtuals); |
| 2773 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2774 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2775 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 2776 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
| 2777 | SirtRef<mirror::ArtMethod> prototype(self, decoded_methods->Get(i)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2778 | mirror::ArtMethod* clone = CreateProxyMethod(self, klass, prototype); |
| 2779 | if (UNLIKELY(clone == NULL)) { |
| 2780 | CHECK(self->IsExceptionPending()); // OOME. |
| 2781 | return NULL; |
| 2782 | } |
| 2783 | klass->SetVirtualMethod(i, clone); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2784 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2785 | |
| 2786 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2787 | 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] | 2788 | self->AssertNoPendingException(); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2789 | |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2790 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2791 | 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] | 2792 | // Link the fields and virtual methods, creating vtable and iftables |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2793 | SirtRef<mirror::ObjectArray<mirror::Class> > sirt_interfaces( |
| 2794 | self, soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2795 | if (!LinkClass(self, klass, sirt_interfaces)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2796 | klass->SetStatus(mirror::Class::kStatusError, self); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2797 | return nullptr; |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2798 | } |
| 2799 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2800 | interfaces_sfield->SetObject(klass.get(), soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2801 | throws_sfield->SetObject(klass.get(), soa.Decode<mirror::ObjectArray<mirror::ObjectArray<mirror::Class> >*>(throws)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2802 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2803 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2804 | |
| 2805 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 2806 | if (kIsDebugBuild) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2807 | CHECK(klass->GetIFields() == NULL); |
| 2808 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2809 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2810 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 2811 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
| 2812 | SirtRef<mirror::ArtMethod> prototype(self, decoded_methods->Get(i)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2813 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2814 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2815 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2816 | mirror::String* decoded_name = soa.Decode<mirror::String*>(name); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2817 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2818 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2819 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 2820 | |
| 2821 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2822 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2823 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2824 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2825 | mirror::SynthesizedProxyClass* synth_proxy_class = |
| 2826 | down_cast<mirror::SynthesizedProxyClass*>(klass.get()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2827 | CHECK_EQ(synth_proxy_class->GetInterfaces(), soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2828 | 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] | 2829 | } |
Mathieu Chartier | 31b9d66 | 2013-10-14 11:53:12 -0700 | [diff] [blame] | 2830 | std::string descriptor(GetDescriptorForProxy(klass.get())); |
| 2831 | mirror::Class* existing = InsertClass(descriptor.c_str(), klass.get(), Hash(descriptor.c_str())); |
| 2832 | CHECK(existing == nullptr); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2833 | return klass.get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2834 | } |
| 2835 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2836 | std::string ClassLinker::GetDescriptorForProxy(const mirror::Class* proxy_class) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2837 | DCHECK(proxy_class->IsProxyClass()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2838 | mirror::String* name = proxy_class->GetName(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2839 | DCHECK(name != NULL); |
| 2840 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2841 | } |
| 2842 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2843 | mirror::ArtMethod* ClassLinker::FindMethodForProxy(const mirror::Class* proxy_class, |
| 2844 | const mirror::ArtMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2845 | DCHECK(proxy_class->IsProxyClass()); |
| 2846 | DCHECK(proxy_method->IsProxyMethod()); |
| 2847 | // Locate the dex cache of the original interface/Object |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2848 | mirror::DexCache* dex_cache = NULL; |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2849 | { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2850 | mirror::ObjectArray<mirror::Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2851 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2852 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2853 | if (dex_caches_[i]->GetResolvedTypes() == resolved_types) { |
| 2854 | dex_cache = dex_caches_[i]; |
| 2855 | break; |
| 2856 | } |
| 2857 | } |
| 2858 | } |
| 2859 | CHECK(dex_cache != NULL); |
| 2860 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2861 | mirror::ArtMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2862 | CHECK(resolved_method != NULL); |
| 2863 | return resolved_method; |
| 2864 | } |
| 2865 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2866 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2867 | mirror::ArtMethod* ClassLinker::CreateProxyConstructor(Thread* self, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2868 | const SirtRef<mirror::Class>& klass, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2869 | mirror::Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2870 | // Create constructor for Proxy that must initialize h |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2871 | mirror::ObjectArray<mirror::ArtMethod>* proxy_direct_methods = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2872 | proxy_class->GetDirectMethods(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2873 | CHECK_EQ(proxy_direct_methods->GetLength(), 16); |
| 2874 | mirror::ArtMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2875 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2876 | // code_ too) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2877 | mirror::ArtMethod* constructor = |
| 2878 | down_cast<mirror::ArtMethod*>(proxy_constructor->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2879 | if (constructor == NULL) { |
| 2880 | CHECK(self->IsExceptionPending()); // OOME. |
| 2881 | return NULL; |
| 2882 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2883 | // Make this constructor public and fix the class to be our Proxy version |
| 2884 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2885 | constructor->SetDeclaringClass(klass.get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2886 | return constructor; |
| 2887 | } |
| 2888 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2889 | static void CheckProxyConstructor(mirror::ArtMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2890 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2891 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2892 | MethodHelper mh(constructor); |
| 2893 | CHECK_STREQ(mh.GetName(), "<init>"); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 2894 | CHECK_STREQ(mh.GetSignature().ToString().c_str(), "(Ljava/lang/reflect/InvocationHandler;)V"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2895 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2896 | } |
| 2897 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2898 | mirror::ArtMethod* ClassLinker::CreateProxyMethod(Thread* self, |
| 2899 | const SirtRef<mirror::Class>& klass, |
| 2900 | const SirtRef<mirror::ArtMethod>& prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2901 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 2902 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2903 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
| 2904 | prototype.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2905 | // 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] | 2906 | // as necessary |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2907 | mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(prototype->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2908 | if (UNLIKELY(method == NULL)) { |
| 2909 | CHECK(self->IsExceptionPending()); // OOME. |
| 2910 | return NULL; |
| 2911 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2912 | |
| 2913 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 2914 | // the intersection of throw exceptions as defined in Proxy |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2915 | method->SetDeclaringClass(klass.get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2916 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2917 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2918 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 2919 | // related parameters from this method. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2920 | mirror::ArtMethod* refs_and_args = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2921 | Runtime::Current()->GetCalleeSaveMethod(Runtime::kRefsAndArgs); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2922 | method->SetCoreSpillMask(refs_and_args->GetCoreSpillMask()); |
| 2923 | method->SetFpSpillMask(refs_and_args->GetFpSpillMask()); |
| 2924 | method->SetFrameSizeInBytes(refs_and_args->GetFrameSizeInBytes()); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 2925 | method->SetEntryPointFromCompiledCode(GetProxyInvokeHandler()); |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 2926 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2927 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2928 | return method; |
| 2929 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2930 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2931 | static void CheckProxyMethod(mirror::ArtMethod* method, |
| 2932 | SirtRef<mirror::ArtMethod>& prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2933 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2934 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2935 | CHECK(!prototype->IsFinal()); |
| 2936 | CHECK(method->IsFinal()); |
| 2937 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2938 | |
| 2939 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 2940 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 2941 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 2942 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 2943 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
| 2944 | CHECK_EQ(prototype->GetDexCacheInitializedStaticStorage(), |
| 2945 | method->GetDexCacheInitializedStaticStorage()); |
| 2946 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 2947 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2948 | MethodHelper mh(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2949 | MethodHelper mh2(prototype.get()); |
| 2950 | CHECK_STREQ(mh.GetName(), mh2.GetName()); |
| 2951 | CHECK_STREQ(mh.GetShorty(), mh2.GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2952 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2953 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2954 | } |
| 2955 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2956 | static bool CanWeInitializeClass(mirror::Class* klass, bool can_init_statics, |
| 2957 | bool can_init_parents) |
| 2958 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 2959 | if (can_init_statics && can_init_parents) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2960 | return true; |
| 2961 | } |
| 2962 | if (!can_init_statics) { |
| 2963 | // Check if there's a class initializer. |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 2964 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2965 | if (clinit != NULL) { |
| 2966 | return false; |
| 2967 | } |
| 2968 | // Check if there are encoded static values needing initialization. |
| 2969 | if (klass->NumStaticFields() != 0) { |
| 2970 | ClassHelper kh(klass); |
| 2971 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 2972 | DCHECK(dex_class_def != NULL); |
| 2973 | if (dex_class_def->static_values_off_ != 0) { |
| 2974 | return false; |
| 2975 | } |
| 2976 | } |
| 2977 | } |
| 2978 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 2979 | mirror::Class* super_class = klass->GetSuperClass(); |
| 2980 | if (!can_init_parents && !super_class->IsInitialized()) { |
| 2981 | return false; |
| 2982 | } else { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 2983 | if (!CanWeInitializeClass(super_class, can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2984 | return false; |
| 2985 | } |
| 2986 | } |
| 2987 | } |
| 2988 | return true; |
| 2989 | } |
| 2990 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2991 | bool ClassLinker::IsInitialized() const { |
| 2992 | return init_done_; |
| 2993 | } |
| 2994 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 2995 | bool ClassLinker::InitializeClass(const SirtRef<mirror::Class>& klass, bool can_init_statics, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2996 | bool can_init_parents) { |
| 2997 | // see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol |
| 2998 | |
| 2999 | // Are we already initialized and therefore done? |
| 3000 | // Note: we differ from the JLS here as we don't do this under the lock, this is benign as |
| 3001 | // an initialized class will never change its state. |
| 3002 | if (klass->IsInitialized()) { |
| 3003 | return true; |
| 3004 | } |
| 3005 | |
| 3006 | // Fast fail if initialization requires a full runtime. Not part of the JLS. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3007 | if (!CanWeInitializeClass(klass.get(), can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3008 | return false; |
| 3009 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3010 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 3011 | Thread* self = Thread::Current(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3012 | uint64_t t0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3013 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3014 | ObjectLock<mirror::Class> lock(self, &klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3015 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3016 | // Re-check under the lock in case another thread initialized ahead of us. |
| 3017 | if (klass->IsInitialized()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3018 | return true; |
| 3019 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3020 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3021 | // 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] | 3022 | if (klass->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3023 | ThrowEarlierClassFailure(klass.get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3024 | return false; |
| 3025 | } |
| 3026 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3027 | CHECK(klass->IsResolved()) << PrettyClass(klass.get()) << ": state=" << klass->GetStatus(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3028 | |
| 3029 | if (!klass->IsVerified()) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 3030 | VerifyClass(klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3031 | if (!klass->IsVerified()) { |
| 3032 | // We failed to verify, expect either the klass to be erroneous or verification failed at |
| 3033 | // compile time. |
| 3034 | if (klass->IsErroneous()) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3035 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3036 | } else { |
| 3037 | CHECK(Runtime::Current()->IsCompiler()); |
| 3038 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3039 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3040 | return false; |
| 3041 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3042 | } |
| 3043 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3044 | // If the class is kStatusInitializing, either this thread is |
| 3045 | // initializing higher up the stack or another thread has beat us |
| 3046 | // to initializing and we need to wait. Either way, this |
| 3047 | // invocation of InitializeClass will not be responsible for |
| 3048 | // running <clinit> and will return. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3049 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 3050 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3051 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3052 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3053 | return true; |
| 3054 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3055 | // No. That's fine. Wait for another thread to finish initializing. |
| 3056 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3057 | } |
| 3058 | |
| 3059 | if (!ValidateSuperClassDescriptors(klass)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3060 | klass->SetStatus(mirror::Class::kStatusError, self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3061 | return false; |
| 3062 | } |
| 3063 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3064 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusVerified) << PrettyClass(klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3065 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3066 | // From here out other threads may observe that we're initializing and so changes of state |
| 3067 | // require the a notification. |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3068 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3069 | klass->SetStatus(mirror::Class::kStatusInitializing, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3070 | |
| 3071 | t0 = NanoTime(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3072 | } |
| 3073 | |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 3074 | // Initialize super classes, must be done while initializing for the JLS. |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3075 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 3076 | mirror::Class* super_class = klass->GetSuperClass(); |
| 3077 | if (!super_class->IsInitialized()) { |
| 3078 | CHECK(!super_class->IsInterface()); |
| 3079 | CHECK(can_init_parents); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3080 | SirtRef<mirror::Class> sirt_super(self, super_class); |
| 3081 | bool super_initialized = InitializeClass(sirt_super, can_init_statics, true); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3082 | if (!super_initialized) { |
| 3083 | // The super class was verified ahead of entering initializing, we should only be here if |
| 3084 | // the super class became erroneous due to initialization. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3085 | CHECK(sirt_super->IsErroneous() && self->IsExceptionPending()) |
| 3086 | << "Super class initialization failed for " << PrettyDescriptor(sirt_super.get()) |
| 3087 | << " that has unexpected status " << sirt_super->GetStatus() |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3088 | << "\nPending exception:\n" |
| 3089 | << (self->GetException(NULL) != NULL ? self->GetException(NULL)->Dump() : ""); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3090 | ObjectLock<mirror::Class> lock(self, &klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3091 | // Initialization failed because the super-class is erroneous. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3092 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3093 | return false; |
| 3094 | } |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 3095 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3096 | } |
| 3097 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3098 | if (klass->NumStaticFields() > 0) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3099 | ClassHelper kh(klass.get()); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3100 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 3101 | CHECK(dex_class_def != NULL); |
| 3102 | const DexFile& dex_file = kh.GetDexFile(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3103 | SirtRef<mirror::ClassLoader> class_loader(self, klass->GetClassLoader()); |
| 3104 | SirtRef<mirror::DexCache> dex_cache(self, kh.GetDexCache()); |
| 3105 | EncodedStaticFieldValueIterator it(dex_file, &dex_cache, &class_loader, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3106 | this, *dex_class_def); |
| 3107 | if (it.HasNext()) { |
| 3108 | CHECK(can_init_statics); |
| 3109 | // We reordered the fields, so we need to be able to map the field indexes to the right fields. |
| 3110 | SafeMap<uint32_t, mirror::ArtField*> field_map; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3111 | ConstructFieldMap(dex_file, *dex_class_def, klass.get(), field_map); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3112 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
| 3113 | it.ReadValueToField(field_map.Get(i)); |
| 3114 | } |
| 3115 | } |
| 3116 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3117 | |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 3118 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3119 | if (clinit != NULL) { |
| 3120 | CHECK(can_init_statics); |
| 3121 | if (LIKELY(Runtime::Current()->IsStarted())) { |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 3122 | JValue result; |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 3123 | clinit->Invoke(self, NULL, 0, &result, 'V'); |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 3124 | } else { |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 3125 | art::interpreter::EnterInterpreterFromInvoke(self, clinit, NULL, NULL, NULL); |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 3126 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3127 | } |
| 3128 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3129 | // Opportunistically set static method trampolines to their destination. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3130 | FixupStaticTrampolines(klass.get()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3131 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3132 | uint64_t t1 = NanoTime(); |
| 3133 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3134 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3135 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3136 | ObjectLock<mirror::Class> lock(self, &klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3137 | |
| 3138 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3139 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3140 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3141 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3142 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3143 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 3144 | RuntimeStats* thread_stats = self->GetStats(); |
| 3145 | ++global_stats->class_init_count; |
| 3146 | ++thread_stats->class_init_count; |
| 3147 | global_stats->class_init_time_ns += (t1 - t0); |
| 3148 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 3149 | // Set the class as initialized except if failed to initialize static fields. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3150 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3151 | if (VLOG_IS_ON(class_linker)) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3152 | ClassHelper kh(klass.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3153 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 3154 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3155 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3156 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3157 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3158 | } |
| 3159 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3160 | bool ClassLinker::WaitForInitializeClass(const SirtRef<mirror::Class>& klass, Thread* self, |
| 3161 | ObjectLock<mirror::Class>& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3162 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3163 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3164 | self->AssertNoPendingException(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3165 | CHECK(!klass->IsInitialized()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 3166 | lock.WaitIgnoringInterrupts(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3167 | |
| 3168 | // When we wake up, repeat the test for init-in-progress. If |
| 3169 | // there's an exception pending (only possible if |
| 3170 | // "interruptShouldThrow" was set), bail out. |
| 3171 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3172 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3173 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3174 | return false; |
| 3175 | } |
| 3176 | // Spurious wakeup? Go back to waiting. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3177 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3178 | continue; |
| 3179 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3180 | if (klass->GetStatus() == mirror::Class::kStatusVerified && Runtime::Current()->IsCompiler()) { |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 3181 | // Compile time initialization failed. |
| 3182 | return false; |
| 3183 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3184 | if (klass->IsErroneous()) { |
| 3185 | // The caller wants an exception, but it was thrown in a |
| 3186 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 3187 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3188 | PrettyDescriptor(klass.get()).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3189 | return false; |
| 3190 | } |
| 3191 | if (klass->IsInitialized()) { |
| 3192 | return true; |
| 3193 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3194 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass.get()) << " is " |
| 3195 | << klass->GetStatus(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3196 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3197 | LOG(FATAL) << "Not Reached" << PrettyClass(klass.get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3198 | } |
| 3199 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3200 | bool ClassLinker::ValidateSuperClassDescriptors(const SirtRef<mirror::Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3201 | if (klass->IsInterface()) { |
| 3202 | return true; |
| 3203 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3204 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3205 | // begin with the methods local to the superclass |
| 3206 | if (klass->HasSuperClass() && |
| 3207 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3208 | SirtRef<mirror::Class> super(self, klass->GetSuperClass()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3209 | for (int i = super->GetVTable()->GetLength() - 1; i >= 0; --i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3210 | const mirror::ArtMethod* method = klass->GetVTable()->Get(i); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3211 | if (method != super->GetVTable()->Get(i) && |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3212 | !IsSameMethodSignatureInDifferentClassContexts(method, super.get(), klass.get())) { |
| 3213 | ThrowLinkageError(klass.get(), "Class %s method %s resolves differently in superclass %s", |
| 3214 | PrettyDescriptor(klass.get()).c_str(), PrettyMethod(method).c_str(), |
| 3215 | PrettyDescriptor(super.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3216 | return false; |
| 3217 | } |
| 3218 | } |
| 3219 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3220 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3221 | SirtRef<mirror::Class> interface(self, klass->GetIfTable()->GetInterface(i)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3222 | if (klass->GetClassLoader() != interface->GetClassLoader()) { |
| 3223 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3224 | const mirror::ArtMethod* method = klass->GetIfTable()->GetMethodArray(i)->Get(j); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3225 | if (!IsSameMethodSignatureInDifferentClassContexts(method, interface.get(), |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3226 | method->GetDeclaringClass())) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3227 | ThrowLinkageError(klass.get(), "Class %s method %s resolves differently in interface %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3228 | PrettyDescriptor(method->GetDeclaringClass()).c_str(), |
| 3229 | PrettyMethod(method).c_str(), |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3230 | PrettyDescriptor(interface.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3231 | return false; |
| 3232 | } |
| 3233 | } |
| 3234 | } |
| 3235 | } |
| 3236 | return true; |
| 3237 | } |
| 3238 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3239 | // Returns true if classes referenced by the signature of the method are the |
| 3240 | // same classes in klass1 as they are in klass2. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3241 | bool ClassLinker::IsSameMethodSignatureInDifferentClassContexts(const mirror::ArtMethod* method, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3242 | const mirror::Class* klass1, |
| 3243 | const mirror::Class* klass2) { |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3244 | if (klass1 == klass2) { |
| 3245 | return true; |
Brian Carlstrom | e10b697 | 2011-09-26 13:49:03 -0700 | [diff] [blame] | 3246 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3247 | Thread* self = Thread::Current(); |
| 3248 | CHECK(klass1 != nullptr); |
| 3249 | CHECK(klass2 != nullptr); |
| 3250 | SirtRef<mirror::ClassLoader> loader1(self, klass1->GetClassLoader()); |
| 3251 | SirtRef<mirror::ClassLoader> loader2(self, klass2->GetClassLoader()); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3252 | const DexFile& dex_file = *method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3253 | const DexFile::ProtoId& proto_id = |
| 3254 | dex_file.GetMethodPrototype(dex_file.GetMethodId(method->GetDexMethodIndex())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3255 | for (DexFileParameterIterator it(dex_file, proto_id); it.HasNext(); it.Next()) { |
| 3256 | const char* descriptor = it.GetDescriptor(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3257 | if (descriptor == nullptr) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3258 | break; |
| 3259 | } |
| 3260 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 3261 | // Found a non-primitive type. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3262 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, loader1, loader2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3263 | return false; |
| 3264 | } |
| 3265 | } |
| 3266 | } |
| 3267 | // Check the return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 3268 | const char* descriptor = dex_file.GetReturnTypeDescriptor(proto_id); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3269 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3270 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, loader1, loader2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3271 | return false; |
| 3272 | } |
| 3273 | } |
| 3274 | return true; |
| 3275 | } |
| 3276 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3277 | // Returns true if the descriptor resolves to the same class in the context of loader1 and loader2. |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3278 | bool ClassLinker::IsSameDescriptorInDifferentClassContexts(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3279 | SirtRef<mirror::ClassLoader>& loader1, |
| 3280 | SirtRef<mirror::ClassLoader>& loader2) { |
| 3281 | CHECK(descriptor != nullptr); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3282 | Thread* self = Thread::Current(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3283 | SirtRef<mirror::Class> found1(self, FindClass(descriptor, loader1)); |
| 3284 | if (found1.get() == nullptr) { |
| 3285 | self->ClearException(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3286 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3287 | mirror::Class* found2 = FindClass(descriptor, loader2); |
| 3288 | if (found2 == nullptr) { |
| 3289 | self->ClearException(); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3290 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3291 | return found1.get() == found2; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3292 | } |
| 3293 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3294 | bool ClassLinker::EnsureInitialized(const SirtRef<mirror::Class>& c, bool can_init_fields, |
| 3295 | bool can_init_parents) { |
| 3296 | DCHECK(c.get() != NULL); |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 3297 | if (c->IsInitialized()) { |
| 3298 | return true; |
| 3299 | } |
| 3300 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3301 | bool success = InitializeClass(c, can_init_fields, can_init_parents); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3302 | if (!success) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3303 | if (can_init_fields && can_init_parents) { |
| 3304 | CHECK(Thread::Current()->IsExceptionPending()) << PrettyClass(c.get()); |
| 3305 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3306 | } |
| 3307 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 3308 | } |
| 3309 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3310 | 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] | 3311 | mirror::Class* c, |
| 3312 | SafeMap<uint32_t, mirror::ArtField*>& field_map) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3313 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3314 | ClassDataItemIterator it(dex_file, class_data); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3315 | Thread* self = Thread::Current(); |
| 3316 | SirtRef<mirror::DexCache> dex_cache(self, c->GetDexCache()); |
| 3317 | SirtRef<mirror::ClassLoader> class_loader(self, c->GetClassLoader()); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3318 | CHECK(!kMovingFields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3319 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3320 | 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] | 3321 | } |
| 3322 | } |
| 3323 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3324 | bool ClassLinker::LinkClass(Thread* self, const SirtRef<mirror::Class>& klass, |
| 3325 | const SirtRef<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3326 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3327 | if (!LinkSuperClass(klass)) { |
| 3328 | return false; |
| 3329 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3330 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3331 | return false; |
| 3332 | } |
| 3333 | if (!LinkInstanceFields(klass)) { |
| 3334 | return false; |
| 3335 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3336 | if (!LinkStaticFields(klass)) { |
| 3337 | return false; |
| 3338 | } |
| 3339 | CreateReferenceInstanceOffsets(klass); |
| 3340 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3341 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3342 | klass->SetStatus(mirror::Class::kStatusResolved, self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3343 | return true; |
| 3344 | } |
| 3345 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3346 | bool ClassLinker::LoadSuperAndInterfaces(const SirtRef<mirror::Class>& klass, |
| 3347 | const DexFile& dex_file) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3348 | CHECK_EQ(mirror::Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3349 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(klass->GetDexClassDefIndex()); |
| 3350 | uint16_t super_class_idx = class_def.superclass_idx_; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3351 | if (super_class_idx != DexFile::kDexNoIndex16) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3352 | mirror::Class* super_class = ResolveType(dex_file, super_class_idx, klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3353 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3354 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3355 | return false; |
| 3356 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3357 | // Verify |
| 3358 | if (!klass->CanAccess(super_class)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3359 | ThrowIllegalAccessError(klass.get(), "Class %s extended by class %s is inaccessible", |
| 3360 | PrettyDescriptor(super_class).c_str(), |
| 3361 | PrettyDescriptor(klass.get()).c_str()); |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3362 | return false; |
| 3363 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3364 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3365 | } |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3366 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(class_def); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3367 | if (interfaces != NULL) { |
| 3368 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 3369 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3370 | mirror::Class* interface = ResolveType(dex_file, idx, klass.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3371 | if (interface == NULL) { |
| 3372 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3373 | return false; |
| 3374 | } |
| 3375 | // Verify |
| 3376 | if (!klass->CanAccess(interface)) { |
| 3377 | // TODO: the RI seemed to ignore this in my testing. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3378 | ThrowIllegalAccessError(klass.get(), "Interface %s implemented by class %s is inaccessible", |
| 3379 | PrettyDescriptor(interface).c_str(), |
| 3380 | PrettyDescriptor(klass.get()).c_str()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3381 | return false; |
| 3382 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3383 | } |
| 3384 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 3385 | // Mark the class as loaded. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3386 | klass->SetStatus(mirror::Class::kStatusLoaded, NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3387 | return true; |
| 3388 | } |
| 3389 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3390 | bool ClassLinker::LinkSuperClass(const SirtRef<mirror::Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3391 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3392 | mirror::Class* super = klass->GetSuperClass(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3393 | if (klass.get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3394 | if (super != NULL) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3395 | ThrowClassFormatError(klass.get(), "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3396 | return false; |
| 3397 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3398 | return true; |
| 3399 | } |
| 3400 | if (super == NULL) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3401 | ThrowLinkageError(klass.get(), "No superclass defined for class %s", |
| 3402 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3403 | return false; |
| 3404 | } |
| 3405 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3406 | if (super->IsFinal() || super->IsInterface()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3407 | ThrowIncompatibleClassChangeError(klass.get(), "Superclass %s of %s is %s", |
| 3408 | PrettyDescriptor(super).c_str(), |
| 3409 | PrettyDescriptor(klass.get()).c_str(), |
| 3410 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3411 | return false; |
| 3412 | } |
| 3413 | if (!klass->CanAccess(super)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3414 | ThrowIllegalAccessError(klass.get(), "Superclass %s is inaccessible to class %s", |
| 3415 | PrettyDescriptor(super).c_str(), |
| 3416 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3417 | return false; |
| 3418 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 3419 | |
| 3420 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 3421 | if (super->IsFinalizable()) { |
| 3422 | klass->SetFinalizable(); |
| 3423 | } |
| 3424 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3425 | // Inherit reference flags (if any) from the superclass. |
| 3426 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 3427 | if (reference_flags != 0) { |
| 3428 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 3429 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3430 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 3431 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3432 | ThrowLinkageError(klass.get(), |
| 3433 | "Class %s attempts to subclass java.lang.ref.Reference, which is not allowed", |
| 3434 | PrettyDescriptor(klass.get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3435 | return false; |
| 3436 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3437 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3438 | if (kIsDebugBuild) { |
| 3439 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 3440 | while (super != NULL) { |
| 3441 | CHECK(super->IsResolved()); |
| 3442 | super = super->GetSuperClass(); |
| 3443 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3444 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3445 | return true; |
| 3446 | } |
| 3447 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3448 | // Populate the class vtable and itable. Compute return type indices. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3449 | bool ClassLinker::LinkMethods(const SirtRef<mirror::Class>& klass, |
| 3450 | const SirtRef<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3451 | if (klass->IsInterface()) { |
| 3452 | // No vtable. |
| 3453 | size_t count = klass->NumVirtualMethods(); |
| 3454 | if (!IsUint(16, count)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3455 | ThrowClassFormatError(klass.get(), "Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3456 | return false; |
| 3457 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 3458 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3459 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3460 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 3461 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3462 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3463 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 3464 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3465 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3466 | } |
| 3467 | return true; |
| 3468 | } |
| 3469 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3470 | bool ClassLinker::LinkVirtualMethods(const SirtRef<mirror::Class>& klass) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3471 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3472 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3473 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 3474 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3475 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3476 | // TODO: do not assign to the vtable field until it is fully constructed. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3477 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3478 | vtable(self, klass->GetSuperClass()->GetVTable()->CopyOf(self, max_count)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3479 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3480 | CHECK(self->IsExceptionPending()); // OOME. |
| 3481 | return false; |
| 3482 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3483 | // See if any of our virtual methods override the superclass. |
| 3484 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3485 | mirror::ArtMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3486 | MethodHelper local_mh(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3487 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3488 | for (; j < actual_count; ++j) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3489 | mirror::ArtMethod* super_method = vtable->Get(j); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3490 | MethodHelper super_mh(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3491 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
| 3492 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), super_method->GetAccessFlags())) { |
| 3493 | if (super_method->IsFinal()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3494 | ThrowLinkageError(klass.get(), "Method %s overrides final method in class %s", |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3495 | PrettyMethod(local_method).c_str(), |
| 3496 | super_mh.GetDeclaringClassDescriptor()); |
| 3497 | return false; |
| 3498 | } |
| 3499 | vtable->Set(j, local_method); |
| 3500 | local_method->SetMethodIndex(j); |
| 3501 | break; |
| 3502 | } else { |
| 3503 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 3504 | << " would have incorrectly overridden the package-private method in " |
| 3505 | << PrettyDescriptor(super_mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3506 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3507 | } |
| 3508 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3509 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3510 | // Not overriding, append. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3511 | vtable->Set(actual_count, local_method); |
| 3512 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3513 | actual_count += 1; |
| 3514 | } |
| 3515 | } |
| 3516 | if (!IsUint(16, actual_count)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3517 | ThrowClassFormatError(klass.get(), "Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3518 | return false; |
| 3519 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3520 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3521 | CHECK_LE(actual_count, max_count); |
| 3522 | if (actual_count < max_count) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3523 | vtable.reset(vtable->CopyOf(self, actual_count)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3524 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3525 | CHECK(self->IsExceptionPending()); // OOME. |
| 3526 | return false; |
| 3527 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3528 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3529 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3530 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3531 | CHECK(klass.get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3532 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3533 | if (!IsUint(16, num_virtual_methods)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3534 | ThrowClassFormatError(klass.get(), "Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3535 | return false; |
| 3536 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3537 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
| 3538 | vtable(self, AllocArtMethodArray(self, num_virtual_methods)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3539 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3540 | CHECK(self->IsExceptionPending()); // OOME. |
| 3541 | return false; |
| 3542 | } |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3543 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3544 | mirror::ArtMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3545 | vtable->Set(i, virtual_method); |
| 3546 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3547 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3548 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3549 | } |
| 3550 | return true; |
| 3551 | } |
| 3552 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3553 | bool ClassLinker::LinkInterfaceMethods(const SirtRef<mirror::Class>& klass, |
| 3554 | const SirtRef<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3555 | // Set the imt table to be all conflicts by default. |
| 3556 | klass->SetImTable(Runtime::Current()->GetDefaultImt()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3557 | size_t super_ifcount; |
| 3558 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3559 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3560 | } else { |
| 3561 | super_ifcount = 0; |
| 3562 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3563 | size_t ifcount = super_ifcount; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3564 | uint32_t num_interfaces; |
| 3565 | { |
| 3566 | ClassHelper kh(klass.get()); |
| 3567 | num_interfaces = |
| 3568 | interfaces.get() == nullptr ? kh.NumDirectInterfaces() : interfaces->GetLength(); |
| 3569 | ifcount += num_interfaces; |
| 3570 | for (size_t i = 0; i < num_interfaces; i++) { |
| 3571 | mirror::Class* interface = |
| 3572 | interfaces.get() == nullptr ? kh.GetDirectInterface(i) : interfaces->Get(i); |
| 3573 | ifcount += interface->GetIfTableCount(); |
| 3574 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3575 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3576 | if (ifcount == 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3577 | // Class implements no interfaces. |
| 3578 | DCHECK_EQ(klass->GetIfTableCount(), 0); |
| 3579 | DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3580 | return true; |
| 3581 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3582 | if (ifcount == super_ifcount) { |
| 3583 | // Class implements same interfaces as parent, are any of these not marker interfaces? |
| 3584 | bool has_non_marker_interface = false; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3585 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3586 | for (size_t i = 0; i < ifcount; ++i) { |
| 3587 | if (super_iftable->GetMethodArrayCount(i) > 0) { |
| 3588 | has_non_marker_interface = true; |
| 3589 | break; |
| 3590 | } |
| 3591 | } |
| 3592 | if (!has_non_marker_interface) { |
| 3593 | // Class just inherits marker interfaces from parent so recycle parent's iftable. |
| 3594 | klass->SetIfTable(super_iftable); |
| 3595 | return true; |
| 3596 | } |
| 3597 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3598 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3599 | SirtRef<mirror::IfTable> iftable(self, AllocIfTable(self, ifcount)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3600 | if (UNLIKELY(iftable.get() == NULL)) { |
| 3601 | CHECK(self->IsExceptionPending()); // OOME. |
| 3602 | return false; |
| 3603 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3604 | if (super_ifcount != 0) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3605 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3606 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3607 | mirror::Class* super_interface = super_iftable->GetInterface(i); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3608 | iftable->SetInterface(i, super_interface); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3609 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3610 | } |
| 3611 | // Flatten the interface inheritance hierarchy. |
| 3612 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3613 | for (size_t i = 0; i < num_interfaces; i++) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3614 | ClassHelper kh(klass.get()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3615 | mirror::Class* interface = |
| 3616 | interfaces.get() == nullptr ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3617 | DCHECK(interface != NULL); |
| 3618 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3619 | ClassHelper ih(interface); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3620 | ThrowIncompatibleClassChangeError(klass.get(), "Class %s implements non-interface class %s", |
| 3621 | PrettyDescriptor(klass.get()).c_str(), |
| 3622 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3623 | return false; |
| 3624 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3625 | // Check if interface is already in iftable |
| 3626 | bool duplicate = false; |
| 3627 | for (size_t j = 0; j < idx; j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3628 | mirror::Class* existing_interface = iftable->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3629 | if (existing_interface == interface) { |
| 3630 | duplicate = true; |
| 3631 | break; |
| 3632 | } |
| 3633 | } |
| 3634 | if (!duplicate) { |
| 3635 | // Add this non-duplicate interface. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3636 | iftable->SetInterface(idx++, interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3637 | // Add this interface's non-duplicate super-interfaces. |
| 3638 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3639 | mirror::Class* super_interface = interface->GetIfTable()->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3640 | bool super_duplicate = false; |
| 3641 | for (size_t k = 0; k < idx; k++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3642 | mirror::Class* existing_interface = iftable->GetInterface(k); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3643 | if (existing_interface == super_interface) { |
| 3644 | super_duplicate = true; |
| 3645 | break; |
| 3646 | } |
| 3647 | } |
| 3648 | if (!super_duplicate) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3649 | iftable->SetInterface(idx++, super_interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3650 | } |
| 3651 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3652 | } |
| 3653 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3654 | // Shrink iftable in case duplicates were found |
| 3655 | if (idx < ifcount) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3656 | iftable.reset(down_cast<mirror::IfTable*>(iftable->CopyOf(self, idx * mirror::IfTable::kMax))); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3657 | if (UNLIKELY(iftable.get() == NULL)) { |
| 3658 | CHECK(self->IsExceptionPending()); // OOME. |
| 3659 | return false; |
| 3660 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3661 | ifcount = idx; |
| 3662 | } else { |
| 3663 | CHECK_EQ(idx, ifcount); |
| 3664 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3665 | klass->SetIfTable(iftable.get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3666 | |
| 3667 | // 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] | 3668 | if (klass->IsInterface()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3669 | return true; |
| 3670 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3671 | // Allocate imtable |
| 3672 | bool imtable_changed = false; |
| 3673 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > imtable(self, AllocArtMethodArray(self, kImtSize)); |
| 3674 | if (UNLIKELY(imtable.get() == NULL)) { |
| 3675 | CHECK(self->IsExceptionPending()); // OOME. |
| 3676 | return false; |
| 3677 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3678 | std::vector<mirror::ArtMethod*> miranda_list; |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3679 | for (size_t i = 0; i < ifcount; ++i) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3680 | size_t num_methods = iftable->GetInterface(i)->NumVirtualMethods(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3681 | if (num_methods > 0) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3682 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
| 3683 | method_array(self, AllocArtMethodArray(self, num_methods)); |
| 3684 | if (UNLIKELY(method_array.get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3685 | CHECK(self->IsExceptionPending()); // OOME. |
| 3686 | return false; |
| 3687 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3688 | iftable->SetMethodArray(i, method_array.get()); |
| 3689 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > vtable(self, |
| 3690 | klass->GetVTableDuringLinking()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3691 | for (size_t j = 0; j < num_methods; ++j) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3692 | mirror::ArtMethod* interface_method = iftable->GetInterface(i)->GetVirtualMethod(j); |
| 3693 | MethodHelper interface_mh(interface_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3694 | int32_t k; |
| 3695 | // For each method listed in the interface's method list, find the |
| 3696 | // matching method in our class's method list. We want to favor the |
| 3697 | // subclass over the superclass, which just requires walking |
| 3698 | // back from the end of the vtable. (This only matters if the |
| 3699 | // superclass defines a private method and this class redefines |
| 3700 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 3701 | // those don't end up in the virtual method table, so it shouldn't |
| 3702 | // matter which direction we go. We walk it backward anyway.) |
| 3703 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3704 | mirror::ArtMethod* vtable_method = vtable->Get(k); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3705 | MethodHelper vtable_mh(vtable_method); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3706 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Elliott Hughes | 6824361 | 2013-02-22 17:16:07 -0800 | [diff] [blame] | 3707 | if (!vtable_method->IsAbstract() && !vtable_method->IsPublic()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3708 | ThrowIllegalAccessError(klass.get(), |
| 3709 | "Method '%s' implementing interface method '%s' is not public", |
| 3710 | PrettyMethod(vtable_method).c_str(), |
| 3711 | PrettyMethod(interface_method).c_str()); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3712 | return false; |
| 3713 | } |
| 3714 | method_array->Set(j, vtable_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3715 | // Place method in imt if entry is empty, place conflict otherwise. |
| 3716 | uint32_t imt_index = interface_method->GetDexMethodIndex() % kImtSize; |
| 3717 | if (imtable->Get(imt_index) == NULL) { |
| 3718 | imtable->Set(imt_index, vtable_method); |
| 3719 | imtable_changed = true; |
| 3720 | } else { |
| 3721 | imtable->Set(imt_index, Runtime::Current()->GetImtConflictMethod()); |
| 3722 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3723 | break; |
| 3724 | } |
| 3725 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3726 | if (k < 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3727 | SirtRef<mirror::ArtMethod> miranda_method(self, NULL); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3728 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3729 | mirror::ArtMethod* mir_method = miranda_list[mir]; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3730 | MethodHelper vtable_mh(mir_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3731 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
| 3732 | miranda_method.reset(miranda_list[mir]); |
| 3733 | break; |
| 3734 | } |
| 3735 | } |
| 3736 | if (miranda_method.get() == NULL) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3737 | // Point the interface table at a phantom slot. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3738 | miranda_method.reset(down_cast<mirror::ArtMethod*>(interface_method->Clone(self))); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3739 | if (UNLIKELY(miranda_method.get() == NULL)) { |
| 3740 | CHECK(self->IsExceptionPending()); // OOME. |
| 3741 | return false; |
| 3742 | } |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3743 | // TODO: If a methods move then the miranda_list may hold stale references. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3744 | miranda_list.push_back(miranda_method.get()); |
| 3745 | } |
| 3746 | method_array->Set(j, miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3747 | } |
| 3748 | } |
| 3749 | } |
| 3750 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3751 | if (imtable_changed) { |
| 3752 | // Fill in empty entries in interface method table with conflict. |
| 3753 | mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod(); |
| 3754 | for (size_t i = 0; i < kImtSize; i++) { |
| 3755 | if (imtable->Get(i) == NULL) { |
| 3756 | imtable->Set(i, imt_conflict_method); |
| 3757 | } |
| 3758 | } |
| 3759 | klass->SetImTable(imtable.get()); |
| 3760 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3761 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3762 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3763 | int new_method_count = old_method_count + miranda_list.size(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3764 | mirror::ObjectArray<mirror::ArtMethod>* virtuals; |
| 3765 | if (old_method_count == 0) { |
| 3766 | virtuals = AllocArtMethodArray(self, new_method_count); |
| 3767 | } else { |
| 3768 | virtuals = klass->GetVirtualMethods()->CopyOf(self, new_method_count); |
| 3769 | } |
| 3770 | if (UNLIKELY(virtuals == NULL)) { |
| 3771 | CHECK(self->IsExceptionPending()); // OOME. |
| 3772 | return false; |
| 3773 | } |
| 3774 | klass->SetVirtualMethods(virtuals); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3775 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3776 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3777 | vtable(self, klass->GetVTableDuringLinking()); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3778 | CHECK(vtable.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3779 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3780 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3781 | vtable.reset(vtable->CopyOf(self, new_vtable_count)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3782 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3783 | CHECK(self->IsExceptionPending()); // OOME. |
| 3784 | return false; |
| 3785 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3786 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3787 | mirror::ArtMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3788 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 3789 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 3790 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 3791 | klass->SetVirtualMethod(old_method_count + i, method); |
| 3792 | vtable->Set(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3793 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3794 | // TODO: do not assign to the vtable field until it is fully constructed. |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3795 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3796 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3797 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3798 | mirror::ObjectArray<mirror::ArtMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3799 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 3800 | CHECK(vtable->Get(i) != NULL); |
| 3801 | } |
| 3802 | |
| 3803 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 3804 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3805 | return true; |
| 3806 | } |
| 3807 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3808 | bool ClassLinker::LinkInstanceFields(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3809 | CHECK(klass.get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3810 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3811 | } |
| 3812 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3813 | bool ClassLinker::LinkStaticFields(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3814 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3815 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3816 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3817 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3818 | return success; |
| 3819 | } |
| 3820 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3821 | struct LinkFieldsComparator { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3822 | explicit LinkFieldsComparator() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 3823 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3824 | // No thread safety analysis as will be called from STL. Checked lock held in constructor. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3825 | bool operator()(const mirror::ArtField* field1, const mirror::ArtField* field2) |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3826 | NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3827 | // First come reference fields, then 64-bit, and finally 32-bit |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3828 | FieldHelper fh1(field1); |
| 3829 | Primitive::Type type1 = fh1.GetTypeAsPrimitiveType(); |
| 3830 | FieldHelper fh2(field2); |
| 3831 | Primitive::Type type2 = fh2.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3832 | bool isPrimitive1 = type1 != Primitive::kPrimNot; |
| 3833 | bool isPrimitive2 = type2 != Primitive::kPrimNot; |
| 3834 | bool is64bit1 = isPrimitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 3835 | bool is64bit2 = isPrimitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3836 | int order1 = (!isPrimitive1 ? 0 : (is64bit1 ? 1 : 2)); |
| 3837 | int order2 = (!isPrimitive2 ? 0 : (is64bit2 ? 1 : 2)); |
| 3838 | if (order1 != order2) { |
| 3839 | return order1 < order2; |
| 3840 | } |
| 3841 | |
| 3842 | // same basic group? then sort by string. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3843 | const char* name1 = fh1.GetName(); |
| 3844 | const char* name2 = fh2.GetName(); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3845 | return strcmp(name1, name2) < 0; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3846 | } |
| 3847 | }; |
| 3848 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 3849 | bool ClassLinker::LinkFields(const SirtRef<mirror::Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3850 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3851 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3852 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3853 | mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3854 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3855 | |
| 3856 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 3857 | size_t size; |
| 3858 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3859 | if (is_static) { |
| 3860 | size = klass->GetClassSize(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3861 | field_offset = mirror::Class::FieldsOffset(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3862 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3863 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3864 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3865 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3866 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3867 | } |
| 3868 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3869 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3870 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3871 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3872 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3873 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3874 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3875 | std::deque<mirror::ArtField*> grouped_and_sorted_fields; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3876 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3877 | mirror::ArtField* f = fields->Get(i); |
| 3878 | CHECK(f != NULL); |
| 3879 | grouped_and_sorted_fields.push_back(f); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3880 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3881 | std::sort(grouped_and_sorted_fields.begin(), grouped_and_sorted_fields.end(), |
| 3882 | LinkFieldsComparator()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3883 | |
| 3884 | // References should be at the front. |
| 3885 | size_t current_field = 0; |
| 3886 | size_t num_reference_fields = 0; |
| 3887 | for (; current_field < num_fields; current_field++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3888 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3889 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3890 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3891 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3892 | if (isPrimitive) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3893 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3894 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3895 | grouped_and_sorted_fields.pop_front(); |
| 3896 | num_reference_fields++; |
| 3897 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3898 | field->SetOffset(field_offset); |
| 3899 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3900 | } |
| 3901 | |
| 3902 | // Now we want to pack all of the double-wide fields together. If |
| 3903 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 3904 | // 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] | 3905 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3906 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3907 | mirror::ArtField* field = grouped_and_sorted_fields[i]; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3908 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3909 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3910 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 3911 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3912 | continue; |
| 3913 | } |
| 3914 | fields->Set(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3915 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3916 | // drop the consumed field |
| 3917 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 3918 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3919 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3920 | // whether we found a 32-bit field for padding or not, we advance |
| 3921 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3922 | } |
| 3923 | |
| 3924 | // Alignment is good, shuffle any double-wide fields forward, and |
| 3925 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3926 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3927 | while (!grouped_and_sorted_fields.empty()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3928 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3929 | grouped_and_sorted_fields.pop_front(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3930 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3931 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3932 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3933 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3934 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3935 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3936 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3937 | ? sizeof(uint64_t) |
| 3938 | : sizeof(uint32_t))); |
| 3939 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3940 | } |
| 3941 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3942 | // 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] | 3943 | if (!is_static && |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3944 | (strcmp("Ljava/lang/ref/Reference;", ClassHelper(klass.get()).GetDescriptor()) == 0)) { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3945 | // We know there are no non-reference fields in the Reference classes, and we know |
| 3946 | // that 'referent' is alphabetically last, so this is easy... |
| 3947 | CHECK_EQ(num_reference_fields, num_fields); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3948 | FieldHelper fh(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 3949 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3950 | --num_reference_fields; |
| 3951 | } |
| 3952 | |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3953 | if (kIsDebugBuild) { |
| 3954 | // Make sure that all reference fields appear before |
| 3955 | // non-reference fields, and all double-wide fields are aligned. |
| 3956 | bool seen_non_ref = false; |
| 3957 | for (size_t i = 0; i < num_fields; i++) { |
| 3958 | mirror::ArtField* field = fields->Get(i); |
| 3959 | if (false) { // enable to debug field layout |
| 3960 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
| 3961 | << " class=" << PrettyClass(klass.get()) |
| 3962 | << " field=" << PrettyField(field) |
| 3963 | << " offset=" << field->GetField32(MemberOffset(mirror::ArtField::OffsetOffset()), |
| 3964 | false); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3965 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3966 | FieldHelper fh(field); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3967 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
| 3968 | bool is_primitive = type != Primitive::kPrimNot; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3969 | if ((strcmp("Ljava/lang/ref/Reference;", ClassHelper(klass.get()).GetDescriptor()) == 0) |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 3970 | && (strcmp("referent", fh.GetName()) == 0)) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3971 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 3972 | } |
| 3973 | if (is_primitive) { |
| 3974 | if (!seen_non_ref) { |
| 3975 | seen_non_ref = true; |
| 3976 | DCHECK_EQ(num_reference_fields, i); |
| 3977 | } |
| 3978 | } else { |
| 3979 | DCHECK(!seen_non_ref); |
| 3980 | } |
| 3981 | } |
| 3982 | if (!seen_non_ref) { |
| 3983 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3984 | } |
| 3985 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3986 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3987 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3988 | if (is_static) { |
| 3989 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 3990 | klass->SetClassSize(size); |
| 3991 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3992 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3993 | if (!klass->IsVariableSize()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3994 | DCHECK_GE(size, sizeof(mirror::Object)) << ClassHelper(klass.get()).GetDescriptor(); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 3995 | size_t previous_size = klass->GetObjectSize(); |
| 3996 | if (previous_size != 0) { |
| 3997 | // Make sure that we didn't originally have an incorrect size. |
| 3998 | CHECK_EQ(previous_size, size); |
| 3999 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4000 | klass->SetObjectSize(size); |
| 4001 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4002 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4003 | return true; |
| 4004 | } |
| 4005 | |
| 4006 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 4007 | // list. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4008 | void ClassLinker::CreateReferenceInstanceOffsets(const SirtRef<mirror::Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4009 | uint32_t reference_offsets = 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4010 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4011 | if (super_class != NULL) { |
| 4012 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4013 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4014 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 4015 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4016 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4017 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4018 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4019 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4020 | } |
| 4021 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4022 | void ClassLinker::CreateReferenceStaticOffsets(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4023 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4024 | } |
| 4025 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4026 | void ClassLinker::CreateReferenceOffsets(const SirtRef<mirror::Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4027 | uint32_t reference_offsets) { |
| 4028 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4029 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 4030 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4031 | const mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4032 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4033 | // All of the fields that contain object references are guaranteed |
| 4034 | // to be at the beginning of the fields list. |
| 4035 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 4036 | // Note that byte_offset is the offset from the beginning of |
| 4037 | // object, not the offset into instance data |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4038 | const mirror::ArtField* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4039 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4040 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 4041 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 4042 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4043 | CHECK_NE(new_bit, 0U); |
| 4044 | reference_offsets |= new_bit; |
| 4045 | } else { |
| 4046 | reference_offsets = CLASS_WALK_SUPER; |
| 4047 | break; |
| 4048 | } |
| 4049 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4050 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4051 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4052 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4053 | } else { |
| 4054 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4055 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4056 | } |
| 4057 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4058 | mirror::String* ClassLinker::ResolveString(const DexFile& dex_file, uint32_t string_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4059 | const SirtRef<mirror::DexCache>& dex_cache) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4060 | DCHECK(dex_cache.get() != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4061 | mirror::String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4062 | if (resolved != NULL) { |
| 4063 | return resolved; |
| 4064 | } |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4065 | uint32_t utf16_length; |
| 4066 | const char* utf8_data = dex_file.StringDataAndUtf16LengthByIdx(string_idx, &utf16_length); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4067 | mirror::String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4068 | dex_cache->SetResolvedString(string_idx, string); |
| 4069 | return string; |
| 4070 | } |
| 4071 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4072 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
| 4073 | const mirror::Class* referrer) { |
| 4074 | Thread* self = Thread::Current(); |
| 4075 | SirtRef<mirror::DexCache> dex_cache(self, referrer->GetDexCache()); |
| 4076 | SirtRef<mirror::ClassLoader> class_loader(self, referrer->GetClassLoader()); |
| 4077 | return ResolveType(dex_file, type_idx, dex_cache, class_loader); |
| 4078 | } |
| 4079 | |
| 4080 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4081 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4082 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4083 | DCHECK(dex_cache.get() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4084 | mirror::Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4085 | if (resolved == NULL) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 4086 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 4087 | resolved = FindClass(descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4088 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 4089 | // TODO: we used to throw here if resolved's class loader was not the |
| 4090 | // boot class loader. This was to permit different classes with the |
| 4091 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4092 | dex_cache->SetResolvedType(type_idx, resolved); |
| 4093 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4094 | Thread* self = Thread::Current(); |
| 4095 | CHECK(self->IsExceptionPending()) |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 4096 | << "Expected pending exception for failed resolution of: " << descriptor; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4097 | // Convert a ClassNotFoundException to a NoClassDefFoundError. |
| 4098 | SirtRef<mirror::Throwable> cause(self, self->GetException(NULL)); |
| 4099 | if (cause->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4100 | SirtRef<mirror::Class> sirt_resolved(self, resolved); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4101 | Thread::Current()->ClearException(); |
| 4102 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4103 | self->GetException(NULL)->SetCause(cause.get()); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4104 | resolved = sirt_resolved.get(); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4105 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4106 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4107 | } |
Brian Carlstrom | abcf7ae | 2013-09-23 22:19:52 -0700 | [diff] [blame] | 4108 | DCHECK((resolved == NULL) || resolved->IsResolved() || resolved->IsErroneous()) |
| 4109 | << PrettyDescriptor(resolved) << " " << resolved->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4110 | return resolved; |
| 4111 | } |
| 4112 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4113 | mirror::ArtMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4114 | uint32_t method_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4115 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4116 | const SirtRef<mirror::ClassLoader>& class_loader, |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4117 | const mirror::ArtMethod* referrer, |
| 4118 | InvokeType type) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4119 | DCHECK(dex_cache.get() != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4120 | // Check for hit in the dex cache. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4121 | mirror::ArtMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 4122 | if (resolved != NULL && !resolved->IsRuntimeMethod()) { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4123 | return resolved; |
| 4124 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4125 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4126 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4127 | 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] | 4128 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 4129 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4130 | return NULL; |
| 4131 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4132 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 4133 | // caches/files. |
| 4134 | switch (type) { |
| 4135 | case kDirect: // Fall-through. |
| 4136 | case kStatic: |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4137 | resolved = klass->FindDirectMethod(dex_cache.get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4138 | break; |
| 4139 | case kInterface: |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4140 | resolved = klass->FindInterfaceMethod(dex_cache.get(), method_idx); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4141 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4142 | break; |
| 4143 | case kSuper: // Fall-through. |
| 4144 | case kVirtual: |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4145 | resolved = klass->FindVirtualMethod(dex_cache.get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4146 | break; |
| 4147 | default: |
| 4148 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4149 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4150 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4151 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4152 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4153 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4154 | switch (type) { |
| 4155 | case kDirect: // Fall-through. |
| 4156 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4157 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4158 | break; |
| 4159 | case kInterface: |
| 4160 | resolved = klass->FindInterfaceMethod(name, signature); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4161 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4162 | break; |
| 4163 | case kSuper: // Fall-through. |
| 4164 | case kVirtual: |
| 4165 | resolved = klass->FindVirtualMethod(name, signature); |
| 4166 | break; |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4167 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4168 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4169 | if (resolved != NULL) { |
| 4170 | // We found a method, check for incompatible class changes. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4171 | if (resolved->CheckIncompatibleClassChange(type)) { |
| 4172 | resolved = NULL; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4173 | } |
| 4174 | } |
| 4175 | if (resolved != NULL) { |
| 4176 | // Be a good citizen and update the dex cache to speed subsequent calls. |
| 4177 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 4178 | return resolved; |
| 4179 | } else { |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4180 | // We failed to find the method which means either an access error, an incompatible class |
| 4181 | // 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] | 4182 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4183 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4184 | switch (type) { |
| 4185 | case kDirect: |
| 4186 | case kStatic: |
| 4187 | resolved = klass->FindVirtualMethod(name, signature); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4188 | break; |
| 4189 | case kInterface: |
| 4190 | case kVirtual: |
| 4191 | case kSuper: |
| 4192 | resolved = klass->FindDirectMethod(name, signature); |
| 4193 | break; |
| 4194 | } |
| 4195 | |
| 4196 | // If we found something, check that it can be accessed by the referrer. |
| 4197 | if (resolved != NULL && referrer != NULL) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4198 | mirror::Class* methods_class = resolved->GetDeclaringClass(); |
| 4199 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4200 | if (!referring_class->CanAccess(methods_class)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4201 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
| 4202 | referrer, resolved, type); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4203 | return NULL; |
| 4204 | } else if (!referring_class->CanAccessMember(methods_class, |
| 4205 | resolved->GetAccessFlags())) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4206 | ThrowIllegalAccessErrorMethod(referring_class, resolved); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4207 | return NULL; |
| 4208 | } |
| 4209 | } |
| 4210 | |
| 4211 | // Otherwise, throw an IncompatibleClassChangeError if we found something, and check interface |
| 4212 | // methods and throw if we find the method there. If we find nothing, throw a NoSuchMethodError. |
| 4213 | switch (type) { |
| 4214 | case kDirect: |
| 4215 | case kStatic: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4216 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4217 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4218 | } else { |
| 4219 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4220 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4221 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4222 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4223 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4224 | } |
| 4225 | } |
| 4226 | break; |
| 4227 | case kInterface: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4228 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4229 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4230 | } else { |
| 4231 | resolved = klass->FindVirtualMethod(name, signature); |
| 4232 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4233 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4234 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4235 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4236 | } |
| 4237 | } |
| 4238 | break; |
| 4239 | case kSuper: |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4240 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4241 | break; |
| 4242 | case kVirtual: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4243 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4244 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4245 | } else { |
| 4246 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4247 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4248 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4249 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4250 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4251 | } |
| 4252 | } |
| 4253 | break; |
| 4254 | } |
| 4255 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4256 | return NULL; |
| 4257 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4258 | } |
| 4259 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4260 | mirror::ArtField* ClassLinker::ResolveField(const DexFile& dex_file, uint32_t field_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4261 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4262 | const SirtRef<mirror::ClassLoader>& class_loader, |
Brian Carlstrom | e810452 | 2013-10-15 21:56:36 -0700 | [diff] [blame] | 4263 | bool is_static) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4264 | DCHECK(dex_cache.get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4265 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4266 | if (resolved != NULL) { |
| 4267 | return resolved; |
| 4268 | } |
| 4269 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4270 | 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] | 4271 | if (klass == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 4272 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4273 | return NULL; |
| 4274 | } |
| 4275 | |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4276 | if (is_static) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4277 | resolved = klass->FindStaticField(dex_cache.get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4278 | } else { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4279 | resolved = klass->FindInstanceField(dex_cache.get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4280 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4281 | |
| 4282 | if (resolved == NULL) { |
| 4283 | const char* name = dex_file.GetFieldName(field_id); |
| 4284 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 4285 | if (is_static) { |
| 4286 | resolved = klass->FindStaticField(name, type); |
| 4287 | } else { |
| 4288 | resolved = klass->FindInstanceField(name, type); |
| 4289 | } |
| 4290 | if (resolved == NULL) { |
| 4291 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass, type, name); |
| 4292 | return NULL; |
| 4293 | } |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4294 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4295 | dex_cache->SetResolvedField(field_idx, resolved); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4296 | return resolved; |
| 4297 | } |
| 4298 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4299 | mirror::ArtField* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4300 | uint32_t field_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 4301 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4302 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4303 | DCHECK(dex_cache.get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4304 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4305 | if (resolved != NULL) { |
| 4306 | return resolved; |
| 4307 | } |
| 4308 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4309 | 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] | 4310 | if (klass == NULL) { |
| 4311 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4312 | return NULL; |
| 4313 | } |
| 4314 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4315 | StringPiece name(dex_file.StringDataByIdx(field_id.name_idx_)); |
| 4316 | StringPiece type(dex_file.StringDataByIdx( |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4317 | dex_file.GetTypeId(field_id.type_idx_).descriptor_idx_)); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4318 | resolved = klass->FindField(name, type); |
| 4319 | if (resolved != NULL) { |
| 4320 | dex_cache->SetResolvedField(field_idx, resolved); |
| 4321 | } else { |
| 4322 | ThrowNoSuchFieldError("", klass, type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4323 | } |
| 4324 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 4325 | } |
| 4326 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4327 | const char* ClassLinker::MethodShorty(uint32_t method_idx, mirror::ArtMethod* referrer, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4328 | uint32_t* length) { |
| 4329 | mirror::Class* declaring_class = referrer->GetDeclaringClass(); |
| 4330 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 4331 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4332 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 4333 | return dex_file.GetMethodShorty(method_id, length); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4334 | } |
| 4335 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4336 | void ClassLinker::DumpAllClasses(int flags) { |
| 4337 | if (dex_cache_image_class_lookup_required_) { |
| 4338 | MoveImageClassesToClassTable(); |
| 4339 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4340 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 4341 | // 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] | 4342 | std::vector<mirror::Class*> all_classes; |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4343 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4344 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4345 | for (const std::pair<size_t, mirror::Class*>& it : class_table_) { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4346 | all_classes.push_back(it.second); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 4347 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4348 | } |
| 4349 | |
| 4350 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 4351 | all_classes[i]->DumpClass(std::cerr, flags); |
| 4352 | } |
| 4353 | } |
| 4354 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4355 | void ClassLinker::DumpForSigQuit(std::ostream& os) { |
| 4356 | if (dex_cache_image_class_lookup_required_) { |
| 4357 | MoveImageClassesToClassTable(); |
| 4358 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4359 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4360 | os << "Loaded classes: " << class_table_.size() << " allocated classes\n"; |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 4361 | } |
| 4362 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4363 | size_t ClassLinker::NumLoadedClasses() { |
| 4364 | if (dex_cache_image_class_lookup_required_) { |
| 4365 | MoveImageClassesToClassTable(); |
| 4366 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4367 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4368 | return class_table_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 4369 | } |
| 4370 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4371 | pid_t ClassLinker::GetClassesLockOwner() { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4372 | return Locks::classlinker_classes_lock_->GetExclusiveOwnerTid(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4373 | } |
| 4374 | |
| 4375 | pid_t ClassLinker::GetDexLockOwner() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4376 | return dex_lock_.GetExclusiveOwnerTid(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 4377 | } |
| 4378 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4379 | void ClassLinker::SetClassRoot(ClassRoot class_root, mirror::Class* klass) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4380 | DCHECK(!init_done_); |
| 4381 | |
| 4382 | DCHECK(klass != NULL); |
| 4383 | DCHECK(klass->GetClassLoader() == NULL); |
| 4384 | |
| 4385 | DCHECK(class_roots_ != NULL); |
| 4386 | DCHECK(class_roots_->Get(class_root) == NULL); |
| 4387 | class_roots_->Set(class_root, klass); |
| 4388 | } |
| 4389 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4390 | } // namespace art |