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" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 35 | #include "debugger.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 36 | #include "dex_file-inl.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 37 | #include "gc/accounting/card_table-inl.h" |
| 38 | #include "gc/accounting/heap_bitmap.h" |
| 39 | #include "gc/heap.h" |
| 40 | #include "gc/space/image_space.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 41 | #include "intern_table.h" |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 42 | #include "interpreter/interpreter.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 43 | #include "leb128.h" |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 44 | #include "oat.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 45 | #include "oat_file.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 46 | #include "mirror/art_field-inl.h" |
| 47 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 48 | #include "mirror/class.h" |
| 49 | #include "mirror/class-inl.h" |
| 50 | #include "mirror/class_loader.h" |
Ian Rogers | 39ebcb8 | 2013-05-30 16:57:23 -0700 | [diff] [blame] | 51 | #include "mirror/dex_cache-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 52 | #include "mirror/iftable-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 53 | #include "mirror/object-inl.h" |
| 54 | #include "mirror/object_array-inl.h" |
| 55 | #include "mirror/proxy.h" |
| 56 | #include "mirror/stack_trace_element.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 57 | #include "object_utils.h" |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 58 | #include "os.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 59 | #include "runtime.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 60 | #include "entrypoints/entrypoint_utils.h" |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 61 | #include "ScopedLocalRef.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 62 | #include "scoped_thread_state_change.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 63 | #include "sirt_ref.h" |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 64 | #include "stack_indirect_reference_table.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 65 | #include "thread.h" |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 66 | #include "UniquePtr.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 67 | #include "utils.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 68 | #include "verifier/method_verifier.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 69 | #include "well_known_classes.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 70 | |
| 71 | namespace art { |
| 72 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 73 | static void ThrowNoClassDefFoundError(const char* fmt, ...) |
| 74 | __attribute__((__format__(__printf__, 1, 2))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 75 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 0512f02 | 2012-03-15 22:10:52 -0700 | [diff] [blame] | 76 | static void ThrowNoClassDefFoundError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 77 | va_list args; |
| 78 | va_start(args, fmt); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 79 | Thread* self = Thread::Current(); |
| 80 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 81 | self->ThrowNewExceptionV(throw_location, "Ljava/lang/NoClassDefFoundError;", fmt, args); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 82 | va_end(args); |
| 83 | } |
| 84 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 85 | static void ThrowEarlierClassFailure(mirror::Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 86 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 87 | // The class failed to initialize on a previous attempt, so we want to throw |
| 88 | // a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 89 | // failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 90 | // the previous error. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 91 | if (!Runtime::Current()->IsCompiler()) { // Give info if this occurs at runtime. |
| 92 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 93 | } |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 94 | |
Elliott Hughes | 5c59994 | 2012-06-13 16:45:05 -0700 | [diff] [blame] | 95 | CHECK(c->IsErroneous()) << PrettyClass(c) << " " << c->GetStatus(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 96 | Thread* self = Thread::Current(); |
| 97 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 98 | if (c->GetVerifyErrorClass() != NULL) { |
| 99 | // 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] | 100 | ClassHelper ve_ch(c->GetVerifyErrorClass()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 101 | self->ThrowNewException(throw_location, ve_ch.GetDescriptor(), PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 102 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 103 | self->ThrowNewException(throw_location, "Ljava/lang/NoClassDefFoundError;", |
| 104 | PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 105 | } |
| 106 | } |
| 107 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 108 | static void WrapExceptionInInitializer() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 109 | Thread* self = Thread::Current(); |
| 110 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 111 | |
| 112 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 113 | CHECK(cause.get() != NULL); |
| 114 | |
| 115 | env->ExceptionClear(); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 116 | bool is_error = env->IsInstanceOf(cause.get(), WellKnownClasses::java_lang_Error); |
| 117 | env->Throw(cause.get()); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 118 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 119 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 120 | if (!is_error) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 121 | ThrowLocation throw_location = self->GetCurrentLocationForThrow(); |
| 122 | self->ThrowNewWrappedException(throw_location, "Ljava/lang/ExceptionInInitializerError;", NULL); |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 123 | } |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 124 | } |
| 125 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 126 | static size_t Hash(const char* s) { |
| 127 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 128 | size_t hash = 0; |
| 129 | for (; *s != '\0'; ++s) { |
| 130 | hash = hash * 31 + *s; |
| 131 | } |
| 132 | return hash; |
| 133 | } |
| 134 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 135 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 136 | "Ljava/lang/Class;", |
| 137 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 138 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 139 | "[Ljava/lang/Object;", |
| 140 | "Ljava/lang/String;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 141 | "Ljava/lang/DexCache;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 142 | "Ljava/lang/ref/Reference;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 143 | "Ljava/lang/reflect/ArtField;", |
| 144 | "Ljava/lang/reflect/ArtMethod;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 145 | "Ljava/lang/reflect/Proxy;", |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 146 | "[Ljava/lang/String;", |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 147 | "[Ljava/lang/reflect/ArtField;", |
| 148 | "[Ljava/lang/reflect/ArtMethod;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 149 | "Ljava/lang/ClassLoader;", |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 150 | "Ljava/lang/Throwable;", |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 151 | "Ljava/lang/ClassNotFoundException;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 152 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 153 | "Z", |
| 154 | "B", |
| 155 | "C", |
| 156 | "D", |
| 157 | "F", |
| 158 | "I", |
| 159 | "J", |
| 160 | "S", |
| 161 | "V", |
| 162 | "[Z", |
| 163 | "[B", |
| 164 | "[C", |
| 165 | "[D", |
| 166 | "[F", |
| 167 | "[I", |
| 168 | "[J", |
| 169 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 170 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 171 | }; |
| 172 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 173 | ClassLinker::ClassLinker(InternTable* intern_table) |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 174 | // dex_lock_ is recursive as it may be used in stack dumping. |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 175 | : dex_lock_("ClassLinker dex lock", kDefaultMutexLevel), |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 176 | dex_cache_image_class_lookup_required_(false), |
| 177 | failed_dex_cache_class_lookups_(0), |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 178 | class_roots_(NULL), |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 179 | array_iftable_(NULL), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 180 | init_done_(false), |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 181 | dex_caches_dirty_(false), |
| 182 | class_table_dirty_(false), |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 183 | intern_table_(intern_table), |
| 184 | portable_resolution_trampoline_(NULL), |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 185 | quick_resolution_trampoline_(NULL), |
| 186 | portable_imt_conflict_trampoline_(NULL), |
| 187 | quick_imt_conflict_trampoline_(NULL) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 188 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 189 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 190 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 191 | void ClassLinker::InitFromCompiler(const std::vector<const DexFile*>& boot_class_path) { |
| 192 | VLOG(startup) << "ClassLinker::Init"; |
| 193 | CHECK(Runtime::Current()->IsCompiler()); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 194 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 195 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 196 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 197 | // java_lang_Class comes first, it's needed for AllocClass |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 198 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 199 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 200 | // The GC can't handle an object with a null class since we can't get the size of this object. |
| 201 | heap->IncrementDisableGC(self); |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 202 | SirtRef<mirror::Class> java_lang_Class(self, down_cast<mirror::Class*>( |
| 203 | heap->AllocNonMovableObject<true>(self, nullptr, sizeof(mirror::ClassClass)))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 204 | CHECK(java_lang_Class.get() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 205 | mirror::Class::SetClassClass(java_lang_Class.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 206 | java_lang_Class->SetClass(java_lang_Class.get()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 207 | java_lang_Class->SetClassSize(sizeof(mirror::ClassClass)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 208 | heap->DecrementDisableGC(self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 209 | // AllocClass(mirror::Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 210 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 211 | // Class[] is used for reflection support. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 212 | 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] | 213 | class_array_class->SetComponentType(java_lang_Class.get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 214 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 215 | // 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] | 216 | 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] | 217 | CHECK(java_lang_Object.get() != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 218 | // backfill Object as the super class of Class. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 219 | java_lang_Class->SetSuperClass(java_lang_Object.get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 220 | java_lang_Object->SetStatus(mirror::Class::kStatusLoaded, self); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 221 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 222 | // Object[] next to hold class roots. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 223 | 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] | 224 | object_array_class->SetComponentType(java_lang_Object.get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 225 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 226 | // Setup the char class to be used for char[]. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 227 | 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] | 228 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 229 | // Setup the char[] class to be used for String. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 230 | 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] | 231 | char_array_class->SetComponentType(char_class.get()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 232 | mirror::CharArray::SetArrayClass(char_array_class.get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 233 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 234 | // Setup String. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 235 | SirtRef<mirror::Class> java_lang_String(self, AllocClass(self, java_lang_Class.get(), sizeof(mirror::StringClass))); |
| 236 | mirror::String::SetClass(java_lang_String.get()); |
| 237 | java_lang_String->SetObjectSize(sizeof(mirror::String)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 238 | java_lang_String->SetStatus(mirror::Class::kStatusResolved, self); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 239 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 240 | // 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] | 241 | class_roots_ = mirror::ObjectArray<mirror::Class>::Alloc(self, object_array_class.get(), |
| 242 | kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 243 | CHECK(class_roots_ != NULL); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 244 | SetClassRoot(kJavaLangClass, java_lang_Class.get()); |
| 245 | SetClassRoot(kJavaLangObject, java_lang_Object.get()); |
| 246 | SetClassRoot(kClassArrayClass, class_array_class.get()); |
| 247 | SetClassRoot(kObjectArrayClass, object_array_class.get()); |
| 248 | SetClassRoot(kCharArrayClass, char_array_class.get()); |
| 249 | SetClassRoot(kJavaLangString, java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 250 | |
| 251 | // Setup the primitive type classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 252 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass(self, Primitive::kPrimBoolean)); |
| 253 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass(self, Primitive::kPrimByte)); |
| 254 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass(self, Primitive::kPrimShort)); |
| 255 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass(self, Primitive::kPrimInt)); |
| 256 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass(self, Primitive::kPrimLong)); |
| 257 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass(self, Primitive::kPrimFloat)); |
| 258 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass(self, Primitive::kPrimDouble)); |
| 259 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass(self, Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 260 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 261 | // Create array interface entries to populate once we can load system classes. |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 262 | array_iftable_ = AllocIfTable(self, 2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 263 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 264 | // Create int array type for AllocDexCache (done in AppendToBootClassPath). |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 265 | 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] | 266 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 267 | mirror::IntArray::SetArrayClass(int_array_class.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 268 | SetClassRoot(kIntArrayClass, int_array_class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 269 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 270 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 271 | |
Ian Rogers | 52813c9 | 2012-10-11 11:50:38 -0700 | [diff] [blame] | 272 | // Set up DexCache. This cannot be done later since AppendToBootClassPath calls AllocDexCache. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 273 | SirtRef<mirror::Class> |
| 274 | 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] | 275 | SetClassRoot(kJavaLangDexCache, java_lang_DexCache.get()); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 276 | java_lang_DexCache->SetObjectSize(sizeof(mirror::DexCache)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 277 | java_lang_DexCache->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 278 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 279 | // 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] | 280 | SirtRef<mirror::Class> java_lang_reflect_ArtField(self, AllocClass(self, java_lang_Class.get(), |
| 281 | sizeof(mirror::ArtFieldClass))); |
| 282 | CHECK(java_lang_reflect_ArtField.get() != NULL); |
| 283 | java_lang_reflect_ArtField->SetObjectSize(sizeof(mirror::ArtField)); |
| 284 | SetClassRoot(kJavaLangReflectArtField, java_lang_reflect_ArtField.get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 285 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusResolved, self); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 286 | mirror::ArtField::SetClass(java_lang_reflect_ArtField.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 287 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 288 | SirtRef<mirror::Class> java_lang_reflect_ArtMethod(self, AllocClass(self, java_lang_Class.get(), |
| 289 | sizeof(mirror::ArtMethodClass))); |
| 290 | CHECK(java_lang_reflect_ArtMethod.get() != NULL); |
| 291 | java_lang_reflect_ArtMethod->SetObjectSize(sizeof(mirror::ArtMethod)); |
| 292 | SetClassRoot(kJavaLangReflectArtMethod, java_lang_reflect_ArtMethod.get()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 293 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusResolved, self); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 294 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 295 | mirror::ArtMethod::SetClass(java_lang_reflect_ArtMethod.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 296 | |
| 297 | // Set up array classes for string, field, method |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 298 | SirtRef<mirror::Class> object_array_string(self, AllocClass(self, java_lang_Class.get(), |
| 299 | sizeof(mirror::Class))); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 300 | object_array_string->SetComponentType(java_lang_String.get()); |
| 301 | SetClassRoot(kJavaLangStringArrayClass, object_array_string.get()); |
| 302 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 303 | SirtRef<mirror::Class> object_array_art_method(self, AllocClass(self, java_lang_Class.get(), |
| 304 | sizeof(mirror::Class))); |
| 305 | object_array_art_method->SetComponentType(java_lang_reflect_ArtMethod.get()); |
| 306 | SetClassRoot(kJavaLangReflectArtMethodArrayClass, object_array_art_method.get()); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 307 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 308 | SirtRef<mirror::Class> object_array_art_field(self, AllocClass(self, java_lang_Class.get(), |
| 309 | sizeof(mirror::Class))); |
| 310 | object_array_art_field->SetComponentType(java_lang_reflect_ArtField.get()); |
| 311 | SetClassRoot(kJavaLangReflectArtFieldArrayClass, object_array_art_field.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 312 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 313 | // Setup boot_class_path_ and register class_path now that we can use AllocObjectArray to create |
| 314 | // DexCache instances. Needs to be after String, Field, Method arrays since AllocDexCache uses |
| 315 | // these roots. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 316 | CHECK_NE(0U, boot_class_path.size()); |
| 317 | for (size_t i = 0; i != boot_class_path.size(); ++i) { |
| 318 | const DexFile* dex_file = boot_class_path[i]; |
| 319 | CHECK(dex_file != NULL); |
| 320 | AppendToBootClassPath(*dex_file); |
| 321 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 322 | |
| 323 | // now we can use FindSystemClass |
| 324 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 325 | // run char class through InitializePrimitiveClass to finish init |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 326 | InitializePrimitiveClass(char_class.get(), Primitive::kPrimChar); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 327 | SetClassRoot(kPrimitiveChar, char_class.get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 328 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 329 | // Create runtime resolution and imt conflict methods. Also setup the default imt. |
| 330 | Runtime* runtime = Runtime::Current(); |
| 331 | runtime->SetResolutionMethod(runtime->CreateResolutionMethod()); |
| 332 | runtime->SetImtConflictMethod(runtime->CreateImtConflictMethod()); |
| 333 | runtime->SetDefaultImt(runtime->CreateDefaultImt(this)); |
| 334 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 335 | // 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] | 336 | java_lang_Object->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 337 | mirror::Class* Object_class = FindSystemClass("Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 338 | CHECK_EQ(java_lang_Object.get(), Object_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 339 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(mirror::Object)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 340 | java_lang_String->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 341 | mirror::Class* String_class = FindSystemClass("Ljava/lang/String;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 342 | CHECK_EQ(java_lang_String.get(), String_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 343 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(mirror::String)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 344 | java_lang_DexCache->SetStatus(mirror::Class::kStatusNotReady, self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 345 | mirror::Class* DexCache_class = FindSystemClass("Ljava/lang/DexCache;"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 346 | CHECK_EQ(java_lang_String.get(), String_class); |
| 347 | CHECK_EQ(java_lang_DexCache.get(), DexCache_class); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 348 | CHECK_EQ(java_lang_DexCache->GetObjectSize(), sizeof(mirror::DexCache)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 349 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 350 | // 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] | 351 | SetClassRoot(kBooleanArrayClass, FindSystemClass("[Z")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 352 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 353 | |
| 354 | SetClassRoot(kByteArrayClass, FindSystemClass("[B")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 355 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 356 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 357 | mirror::Class* found_char_array_class = FindSystemClass("[C"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 358 | CHECK_EQ(char_array_class.get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 359 | |
| 360 | SetClassRoot(kShortArrayClass, FindSystemClass("[S")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 361 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 362 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 363 | mirror::Class* found_int_array_class = FindSystemClass("[I"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 364 | CHECK_EQ(int_array_class.get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 365 | |
| 366 | SetClassRoot(kLongArrayClass, FindSystemClass("[J")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 367 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 368 | |
| 369 | SetClassRoot(kFloatArrayClass, FindSystemClass("[F")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 370 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 371 | |
| 372 | SetClassRoot(kDoubleArrayClass, FindSystemClass("[D")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 373 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 374 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 375 | mirror::Class* found_class_array_class = FindSystemClass("[Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 376 | CHECK_EQ(class_array_class.get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 377 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 378 | mirror::Class* found_object_array_class = FindSystemClass("[Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 379 | CHECK_EQ(object_array_class.get(), found_object_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 380 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 381 | // Setup the single, global copy of "iftable". |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 382 | mirror::Class* java_lang_Cloneable = FindSystemClass("Ljava/lang/Cloneable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 383 | CHECK(java_lang_Cloneable != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 384 | mirror::Class* java_io_Serializable = FindSystemClass("Ljava/io/Serializable;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 385 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 386 | // We assume that Cloneable/Serializable don't have superinterfaces -- normally we'd have to |
| 387 | // crawl up and explicitly list all of the supers as well. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 388 | array_iftable_->SetInterface(0, java_lang_Cloneable); |
| 389 | array_iftable_->SetInterface(1, java_io_Serializable); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 390 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 391 | // Sanity check Class[] and Object[]'s interfaces. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 392 | ClassHelper kh(class_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 393 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 394 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 395 | kh.ChangeClass(object_array_class.get()); |
Ian Rogers | d24e264 | 2012-06-06 21:21:43 -0700 | [diff] [blame] | 396 | CHECK_EQ(java_lang_Cloneable, kh.GetDirectInterface(0)); |
| 397 | CHECK_EQ(java_io_Serializable, kh.GetDirectInterface(1)); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 398 | // Run Class, ArtField, and ArtMethod through FindSystemClass. This initializes their |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 399 | // dex_cache_ fields and register them in class_table_. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 400 | mirror::Class* Class_class = FindSystemClass("Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 401 | CHECK_EQ(java_lang_Class.get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 402 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 403 | java_lang_reflect_ArtMethod->SetStatus(mirror::Class::kStatusNotReady, self); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 404 | mirror::Class* Art_method_class = FindSystemClass("Ljava/lang/reflect/ArtMethod;"); |
| 405 | CHECK_EQ(java_lang_reflect_ArtMethod.get(), Art_method_class); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 406 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 407 | java_lang_reflect_ArtField->SetStatus(mirror::Class::kStatusNotReady, self); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 408 | mirror::Class* Art_field_class = FindSystemClass("Ljava/lang/reflect/ArtField;"); |
| 409 | CHECK_EQ(java_lang_reflect_ArtField.get(), Art_field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 410 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 411 | mirror::Class* String_array_class = FindSystemClass(class_roots_descriptors_[kJavaLangStringArrayClass]); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 412 | CHECK_EQ(object_array_string.get(), String_array_class); |
| 413 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 414 | mirror::Class* Art_method_array_class = |
| 415 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]); |
| 416 | CHECK_EQ(object_array_art_method.get(), Art_method_array_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 417 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 418 | mirror::Class* Art_field_array_class = |
| 419 | FindSystemClass(class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]); |
| 420 | CHECK_EQ(object_array_art_field.get(), Art_field_array_class); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 421 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 422 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass. |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 423 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 424 | // Create java.lang.reflect.Proxy root. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 425 | mirror::Class* java_lang_reflect_Proxy = FindSystemClass("Ljava/lang/reflect/Proxy;"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 426 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 427 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 428 | // 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] | 429 | mirror::Class* java_lang_ref_Reference = FindSystemClass("Ljava/lang/ref/Reference;"); |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 430 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 431 | mirror::Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 432 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 433 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 434 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 435 | mirror::Class* java_lang_ref_PhantomReference = FindSystemClass("Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 436 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 437 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 438 | kAccClassIsReference | kAccClassIsPhantomReference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 439 | mirror::Class* java_lang_ref_SoftReference = FindSystemClass("Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 440 | java_lang_ref_SoftReference->SetAccessFlags( |
| 441 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 442 | mirror::Class* java_lang_ref_WeakReference = FindSystemClass("Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 443 | java_lang_ref_WeakReference->SetAccessFlags( |
| 444 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 445 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 446 | |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 447 | // Setup the ClassLoader, verifying the object_size_. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 448 | mirror::Class* java_lang_ClassLoader = FindSystemClass("Ljava/lang/ClassLoader;"); |
| 449 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(mirror::ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 450 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 451 | |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 452 | // Set up java.lang.Throwable, java.lang.ClassNotFoundException, and |
Ian Rogers | 23435d0 | 2012-09-24 11:23:12 -0700 | [diff] [blame] | 453 | // java.lang.StackTraceElement as a convenience. |
Ian Rogers | 5167c97 | 2012-02-03 10:41:20 -0800 | [diff] [blame] | 454 | SetClassRoot(kJavaLangThrowable, FindSystemClass("Ljava/lang/Throwable;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 455 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 456 | SetClassRoot(kJavaLangClassNotFoundException, FindSystemClass("Ljava/lang/ClassNotFoundException;")); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 457 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass("Ljava/lang/StackTraceElement;")); |
| 458 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass("[Ljava/lang/StackTraceElement;")); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 459 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 460 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 461 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 462 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 463 | VLOG(startup) << "ClassLinker::InitFromCompiler exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | void ClassLinker::FinishInit() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 467 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 468 | |
| 469 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 470 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 471 | // as the types of the field can't be resolved prior to the runtime being |
| 472 | // fully initialized |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 473 | mirror::Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 474 | mirror::Class* java_lang_ref_FinalizerReference = |
| 475 | FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 476 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 477 | mirror::ArtField* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 478 | FieldHelper fh(pendingNext); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 479 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 480 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/Reference;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 481 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 482 | mirror::ArtField* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 483 | fh.ChangeField(queue); |
| 484 | CHECK_STREQ(fh.GetName(), "queue"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 485 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 486 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 487 | mirror::ArtField* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 488 | fh.ChangeField(queueNext); |
| 489 | CHECK_STREQ(fh.GetName(), "queueNext"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 490 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/ref/Reference;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 491 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 492 | mirror::ArtField* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 493 | fh.ChangeField(referent); |
| 494 | CHECK_STREQ(fh.GetName(), "referent"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 495 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/Object;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 496 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 497 | mirror::ArtField* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 498 | fh.ChangeField(zombie); |
| 499 | CHECK_STREQ(fh.GetName(), "zombie"); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 500 | CHECK_STREQ(fh.GetTypeDescriptor(), "Ljava/lang/Object;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 501 | |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 502 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 503 | heap->SetReferenceOffsets(referent->GetOffset(), |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 504 | queue->GetOffset(), |
| 505 | queueNext->GetOffset(), |
| 506 | pendingNext->GetOffset(), |
| 507 | zombie->GetOffset()); |
| 508 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 509 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 510 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 511 | ClassRoot class_root = static_cast<ClassRoot>(i); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 512 | mirror::Class* klass = GetClassRoot(class_root); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 513 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 514 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 515 | // note SetClassRoot does additional validation. |
| 516 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 517 | } |
| 518 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 519 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 520 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 521 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 522 | // that Object, Class, and Object[] are setup |
| 523 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 524 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 525 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 526 | } |
| 527 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 528 | void ClassLinker::RunRootClinits() { |
| 529 | Thread* self = Thread::Current(); |
| 530 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 531 | mirror::Class* c = GetClassRoot(ClassRoot(i)); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 532 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 533 | SirtRef<mirror::Class> sirt_class(self, GetClassRoot(ClassRoot(i))); |
| 534 | EnsureInitialized(sirt_class, true, true); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 535 | self->AssertNoPendingException(); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 536 | } |
| 537 | } |
| 538 | } |
| 539 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 540 | bool ClassLinker::GenerateOatFile(const char* dex_filename, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 541 | int oat_fd, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 542 | const char* oat_cache_filename) { |
| 543 | Locks::mutator_lock_->AssertNotHeld(Thread::Current()); // Avoid starving GC. |
Brian Carlstrom | a56fcd6 | 2012-02-04 21:23:01 -0800 | [diff] [blame] | 544 | std::string dex2oat_string(GetAndroidRoot()); |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 545 | dex2oat_string += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 546 | const char* dex2oat = dex2oat_string.c_str(); |
| 547 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 548 | const char* class_path = Runtime::Current()->GetClassPathString().c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 549 | |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 550 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 551 | std::string boot_image_option_string("--boot-image="); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 552 | boot_image_option_string += heap->GetImageSpace()->GetImageFilename(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 553 | const char* boot_image_option = boot_image_option_string.c_str(); |
| 554 | |
| 555 | std::string dex_file_option_string("--dex-file="); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 556 | dex_file_option_string += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 557 | const char* dex_file_option = dex_file_option_string.c_str(); |
| 558 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 559 | std::string oat_fd_option_string("--oat-fd="); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 560 | StringAppendF(&oat_fd_option_string, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 561 | const char* oat_fd_option = oat_fd_option_string.c_str(); |
| 562 | |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 563 | std::string oat_location_option_string("--oat-location="); |
| 564 | oat_location_option_string += oat_cache_filename; |
| 565 | const char* oat_location_option = oat_location_option_string.c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 566 | |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 567 | std::string oat_compiler_filter_string("-compiler-filter:"); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 568 | Runtime::CompilerFilter filter = Runtime::Current()->GetCompilerFilter(); |
| 569 | switch (filter) { |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 570 | case Runtime::kInterpretOnly: |
| 571 | oat_compiler_filter_string += "interpret-only"; |
| 572 | break; |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 573 | case Runtime::kSpace: |
| 574 | oat_compiler_filter_string += "space"; |
| 575 | break; |
| 576 | case Runtime::kBalanced: |
| 577 | oat_compiler_filter_string += "balanced"; |
| 578 | break; |
| 579 | case Runtime::kSpeed: |
| 580 | oat_compiler_filter_string += "speed"; |
| 581 | break; |
buzbee | fe9ca40 | 2013-08-21 09:48:11 -0700 | [diff] [blame] | 582 | case Runtime::kEverything: |
| 583 | oat_compiler_filter_string += "everything"; |
| 584 | break; |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 585 | default: |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 586 | LOG(FATAL) << "Unexpected case: " << filter; |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 587 | } |
| 588 | const char* oat_compiler_filter_option = oat_compiler_filter_string.c_str(); |
| 589 | |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 590 | // fork and exec dex2oat |
| 591 | pid_t pid = fork(); |
| 592 | if (pid == 0) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 593 | // no allocation allowed between fork and exec |
Ian Rogers | 725aee5 | 2012-01-11 11:56:56 -0800 | [diff] [blame] | 594 | |
| 595 | // change process groups, so we don't get reaped by ProcessManager |
| 596 | setpgid(0, 0); |
| 597 | |
Brian Carlstrom | b00309f | 2013-09-30 14:23:30 -0700 | [diff] [blame] | 598 | // gLogVerbosity.class_linker = true; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 599 | VLOG(class_linker) << dex2oat |
| 600 | << " --runtime-arg -Xms64m" |
| 601 | << " --runtime-arg -Xmx64m" |
| 602 | << " --runtime-arg -classpath" |
| 603 | << " --runtime-arg " << class_path |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 604 | << " --runtime-arg " << oat_compiler_filter_option |
Brian Carlstrom | 265091e | 2013-01-30 14:08:26 -0800 | [diff] [blame] | 605 | #if !defined(ART_TARGET) |
| 606 | << " --host" |
| 607 | #endif |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 608 | << " " << boot_image_option |
| 609 | << " " << dex_file_option |
| 610 | << " " << oat_fd_option |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 611 | << " " << oat_location_option; |
jeffhao | 10037c8 | 2012-01-23 15:06:23 -0800 | [diff] [blame] | 612 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 613 | execl(dex2oat, dex2oat, |
jeffhao | 5d84040 | 2011-10-24 17:09:45 -0700 | [diff] [blame] | 614 | "--runtime-arg", "-Xms64m", |
| 615 | "--runtime-arg", "-Xmx64m", |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 616 | "--runtime-arg", "-classpath", |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 617 | "--runtime-arg", class_path, |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 618 | "--runtime-arg", oat_compiler_filter_option, |
Brian Carlstrom | 265091e | 2013-01-30 14:08:26 -0800 | [diff] [blame] | 619 | #if !defined(ART_TARGET) |
| 620 | "--host", |
| 621 | #endif |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 622 | boot_image_option, |
| 623 | dex_file_option, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 624 | oat_fd_option, |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 625 | oat_location_option, |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 626 | NULL); |
| 627 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 628 | PLOG(FATAL) << "execl(" << dex2oat << ") failed"; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 629 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 630 | } else { |
| 631 | // wait for dex2oat to finish |
| 632 | int status; |
| 633 | pid_t got_pid = TEMP_FAILURE_RETRY(waitpid(pid, &status, 0)); |
| 634 | if (got_pid != pid) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 635 | ScopedObjectAccess soa(Thread::Current()); |
| 636 | ThrowIOException("Failed to create oat file. Waitpid failed: wanted %d, got %d", pid, |
| 637 | got_pid); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 638 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 639 | } |
| 640 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 641 | ScopedObjectAccess soa(Thread::Current()); |
| 642 | ThrowIOException("Failed to create oat file. %s failed with dex-file '%s'", dex2oat, |
| 643 | dex_filename); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 644 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 645 | } |
| 646 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 647 | return true; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 648 | } |
| 649 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 650 | const OatFile* ClassLinker::RegisterOatFile(const OatFile* oat_file) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 651 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 652 | for (size_t i = 0; i < oat_files_.size(); ++i) { |
| 653 | if (UNLIKELY(oat_file->GetLocation() == oat_files_[i]->GetLocation())) { |
| 654 | VLOG(class_linker) << "Attempt to register oat file that's already registered: " |
| 655 | << oat_file->GetLocation(); |
| 656 | for (size_t j = i; j < oat_files_.size(); ++j) { |
| 657 | CHECK_NE(oat_file, oat_files_[j]) << "Attempt to re-register dex file."; |
| 658 | } |
| 659 | delete oat_file; |
| 660 | return oat_files_[i]; |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 661 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 662 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 663 | VLOG(class_linker) << "Registering " << oat_file->GetLocation(); |
| 664 | oat_files_.push_back(oat_file); |
| 665 | return oat_file; |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 666 | } |
| 667 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 668 | OatFile& ClassLinker::GetImageOatFile(gc::space::ImageSpace* space) { |
| 669 | VLOG(startup) << "ClassLinker::GetImageOatFile entering"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 670 | OatFile* oat_file = space->ReleaseOatFile(); |
| 671 | CHECK_EQ(RegisterOatFile(oat_file), oat_file); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 672 | VLOG(startup) << "ClassLinker::GetImageOatFile exiting"; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 673 | return *oat_file; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 674 | } |
| 675 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 676 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 677 | return FindOpenedOatFileFromDexLocation(dex_file.GetLocation().c_str(), |
| 678 | dex_file.GetLocationChecksum()); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 679 | } |
| 680 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 681 | const OatFile* ClassLinker::FindOpenedOatFileFromDexLocation(const char* dex_location, |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 682 | uint32_t dex_location_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 683 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 684 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 685 | const OatFile* oat_file = oat_files_[i]; |
| 686 | DCHECK(oat_file != NULL); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 687 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
| 688 | &dex_location_checksum, |
| 689 | false); |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 690 | if (oat_dex_file != NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 691 | return oat_file; |
| 692 | } |
| 693 | } |
| 694 | return NULL; |
| 695 | } |
| 696 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 697 | const DexFile* ClassLinker::FindDexFileInOatLocation(const char* dex_location, |
Ian Rogers | e3359f7 | 2013-06-11 15:14:11 -0700 | [diff] [blame] | 698 | uint32_t dex_location_checksum, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 699 | const char* oat_location, |
| 700 | std::string* error_msg) { |
Brian Carlstrom | f1d3455 | 2013-07-12 20:22:23 -0700 | [diff] [blame] | 701 | UniquePtr<OatFile> oat_file(OatFile::Open(oat_location, oat_location, NULL, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 702 | !Runtime::Current()->IsCompiler(), |
| 703 | error_msg)); |
| 704 | if (oat_file.get() == nullptr) { |
| 705 | *error_msg = StringPrintf("Failed to find existing oat file at %s: %s", oat_location, |
| 706 | error_msg->c_str()); |
| 707 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 708 | } |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 709 | Runtime* runtime = Runtime::Current(); |
| 710 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 711 | uint32_t expected_image_oat_checksum = image_header.GetOatChecksum(); |
| 712 | uint32_t actual_image_oat_checksum = oat_file->GetOatHeader().GetImageFileLocationOatChecksum(); |
| 713 | if (expected_image_oat_checksum != actual_image_oat_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 714 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat checksum of " |
| 715 | "0x%x, found 0x%x", oat_location, expected_image_oat_checksum, |
| 716 | actual_image_oat_checksum); |
| 717 | return nullptr; |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 718 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 719 | |
| 720 | uint32_t expected_image_oat_offset = reinterpret_cast<uint32_t>(image_header.GetOatDataBegin()); |
| 721 | uint32_t actual_image_oat_offset = oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(); |
| 722 | if (expected_image_oat_offset != actual_image_oat_offset) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 723 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected image oat offset %ud, " |
| 724 | "found %ud", oat_location, expected_image_oat_offset, |
| 725 | actual_image_oat_offset); |
| 726 | return nullptr; |
Brian Carlstrom | 81f3ca1 | 2012-03-17 00:27:35 -0700 | [diff] [blame] | 727 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 728 | // TODO: this registers the oat file now as we may use the oat_dex_file later and we want the |
| 729 | // intern behavior of RegisterOatFile. However, if we take an early return we could remove |
| 730 | // the oat file. |
| 731 | const OatFile* opened_oat_file = RegisterOatFile(oat_file.release()); |
| 732 | const OatFile::OatDexFile* oat_dex_file = opened_oat_file->GetOatDexFile(dex_location, |
| 733 | &dex_location_checksum); |
| 734 | if (oat_dex_file == nullptr) { |
| 735 | *error_msg = StringPrintf("Failed to find oat file at '%s' containing '%s'", oat_location, |
| 736 | dex_location); |
| 737 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 738 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 739 | uint32_t expected_dex_checksum = dex_location_checksum; |
| 740 | uint32_t actual_dex_checksum = oat_dex_file->GetDexFileLocationChecksum(); |
| 741 | if (expected_dex_checksum != actual_dex_checksum) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 742 | *error_msg = StringPrintf("Failed to find oat file at '%s' with expected dex checksum of 0x%x, " |
| 743 | "found 0x%x", oat_location, expected_dex_checksum, |
| 744 | actual_dex_checksum); |
| 745 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 746 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 747 | return oat_dex_file->OpenDexFile(error_msg); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 748 | } |
| 749 | |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 750 | class ScopedFlock { |
| 751 | public: |
| 752 | ScopedFlock() {} |
| 753 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 754 | bool Init(const char* filename, std::string* error_msg) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 755 | while (true) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 756 | file_.reset(OS::OpenFileWithFlags(filename, O_CREAT | O_RDWR)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 757 | if (file_.get() == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 758 | *error_msg = StringPrintf("Failed to open file '%s'", filename); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 759 | return false; |
| 760 | } |
| 761 | int flock_result = TEMP_FAILURE_RETRY(flock(file_->Fd(), LOCK_EX)); |
| 762 | if (flock_result != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 763 | *error_msg = StringPrintf("Failed to lock file '%s': %s", filename, strerror(errno)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 764 | return false; |
| 765 | } |
| 766 | struct stat fstat_stat; |
| 767 | int fstat_result = TEMP_FAILURE_RETRY(fstat(file_->Fd(), &fstat_stat)); |
| 768 | if (fstat_result != 0) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 769 | *error_msg = StringPrintf("Failed to fstat file '%s': %s", filename, strerror(errno)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 770 | return false; |
| 771 | } |
| 772 | struct stat stat_stat; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 773 | int stat_result = TEMP_FAILURE_RETRY(stat(filename, &stat_stat)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 774 | if (stat_result != 0) { |
| 775 | PLOG(WARNING) << "Failed to stat, will retry: " << filename; |
| 776 | // ENOENT can happen if someone racing with us unlinks the file we created so just retry. |
| 777 | continue; |
| 778 | } |
| 779 | if (fstat_stat.st_dev != stat_stat.st_dev || fstat_stat.st_ino != stat_stat.st_ino) { |
| 780 | LOG(WARNING) << "File changed while locking, will retry: " << filename; |
| 781 | continue; |
| 782 | } |
| 783 | return true; |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | File& GetFile() { |
| 788 | return *file_; |
| 789 | } |
| 790 | |
| 791 | ~ScopedFlock() { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 792 | if (file_.get() != NULL) { |
| 793 | int flock_result = TEMP_FAILURE_RETRY(flock(file_->Fd(), LOCK_UN)); |
| 794 | CHECK_EQ(0, flock_result); |
| 795 | } |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 796 | } |
| 797 | |
| 798 | private: |
| 799 | UniquePtr<File> file_; |
| 800 | |
| 801 | DISALLOW_COPY_AND_ASSIGN(ScopedFlock); |
| 802 | }; |
| 803 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 804 | const DexFile* ClassLinker::FindOrCreateOatFileForDexLocation(const char* dex_location, |
| 805 | uint32_t dex_location_checksum, |
| 806 | const char* oat_location, |
| 807 | std::string* error_msg) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 808 | // We play a locking game here so that if two different processes |
| 809 | // race to generate (or worse, one tries to open a partial generated |
| 810 | // file) we will be okay. This is actually common with apps that use |
| 811 | // DexClassLoader to work around the dex method reference limit and |
| 812 | // that have a background service running in a separate process. |
| 813 | ScopedFlock scoped_flock; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 814 | if (!scoped_flock.Init(oat_location, error_msg)) { |
| 815 | return nullptr; |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 816 | } |
| 817 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 818 | // Check if we already have an up-to-date output file |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 819 | const DexFile* dex_file = FindDexFileInOatLocation(dex_location, dex_location_checksum, |
| 820 | oat_location, error_msg); |
| 821 | if (dex_file != nullptr) { |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 822 | return dex_file; |
| 823 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 824 | VLOG(class_linker) << "Failed to find dex file '" << dex_location << "' in oat location '" |
| 825 | << oat_location << "': " << *error_msg; |
| 826 | error_msg->clear(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 827 | |
| 828 | // Generate the output oat file for the dex file |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 829 | VLOG(class_linker) << "Generating oat file " << oat_location << " for " << dex_location; |
| 830 | if (!GenerateOatFile(dex_location, scoped_flock.GetFile().Fd(), oat_location)) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 831 | CHECK(Thread::Current()->IsExceptionPending()); |
| 832 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 833 | } |
Brian Carlstrom | f1d3455 | 2013-07-12 20:22:23 -0700 | [diff] [blame] | 834 | const OatFile* oat_file = OatFile::Open(oat_location, oat_location, NULL, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 835 | !Runtime::Current()->IsCompiler(), |
| 836 | error_msg); |
| 837 | if (oat_file == nullptr) { |
| 838 | *error_msg = StringPrintf("Failed to open generated oat file '%s': %s", |
| 839 | oat_location, error_msg->c_str()); |
| 840 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 841 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 842 | oat_file = RegisterOatFile(oat_file); |
| 843 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_location, |
| 844 | &dex_location_checksum); |
| 845 | if (oat_dex_file == nullptr) { |
| 846 | *error_msg = StringPrintf("Failed to find dex file '%s' (checksum 0x%x) in generated out file " |
| 847 | "'%s'", dex_location, dex_location_checksum, oat_location); |
| 848 | return nullptr; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 849 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 850 | const DexFile* result = oat_dex_file->OpenDexFile(error_msg); |
| 851 | CHECK(result != nullptr) << *error_msg; |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 852 | CHECK_EQ(dex_location_checksum, result->GetLocationChecksum()) |
| 853 | << "dex_location=" << dex_location << " oat_location=" << oat_location << std::hex |
| 854 | << " dex_location_checksum=" << dex_location_checksum |
Brian Carlstrom | b00309f | 2013-09-30 14:23:30 -0700 | [diff] [blame] | 855 | << " DexFile::GetLocationChecksum()=" << result->GetLocationChecksum(); |
| 856 | return result; |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 857 | } |
| 858 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 859 | bool ClassLinker::VerifyOatFileChecksums(const OatFile* oat_file, |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 860 | const char* dex_location, |
| 861 | uint32_t dex_location_checksum, |
| 862 | std::string* error_msg) { |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 863 | Runtime* runtime = Runtime::Current(); |
| 864 | const ImageHeader& image_header = runtime->GetHeap()->GetImageSpace()->GetImageHeader(); |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 865 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 866 | 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] | 867 | bool image_check = ((oat_file->GetOatHeader().GetImageFileLocationOatChecksum() == image_oat_checksum) |
Brian Carlstrom | 700c8d3 | 2012-11-05 10:42:02 -0800 | [diff] [blame] | 868 | && (oat_file->GetOatHeader().GetImageFileLocationOatDataBegin() == image_oat_data_begin)); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 869 | |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 870 | 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] | 871 | if (oat_dex_file == NULL) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 872 | *error_msg = StringPrintf("oat file '%s' does not contain contents for '%s' with checksum 0x%x", |
| 873 | oat_file->GetLocation().c_str(), dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 874 | std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| 875 | for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| 876 | const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 877 | *error_msg += StringPrintf("\noat file '%s' contains contents for '%s'", |
| 878 | oat_file->GetLocation().c_str(), |
| 879 | oat_dex_file->GetDexFileLocation().c_str()); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 880 | } |
| 881 | return false; |
| 882 | } |
Brian Carlstrom | 28db012 | 2012-10-18 16:20:41 -0700 | [diff] [blame] | 883 | bool dex_check = dex_location_checksum == oat_dex_file->GetDexFileLocationChecksum(); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 884 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 885 | if (image_check && dex_check) { |
| 886 | return true; |
| 887 | } |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 888 | |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 889 | if (!image_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 890 | ScopedObjectAccess soa(Thread::Current()); |
| 891 | mirror::String* oat_location = image_header.GetImageRoot(ImageHeader::kOatLocation)->AsString(); |
| 892 | std::string image_file(oat_location->ToModifiedUtf8()); |
| 893 | *error_msg = StringPrintf("oat file '%s' mismatch (0x%x, %d) with '%s' (0x%x, %d)", |
| 894 | oat_file->GetLocation().c_str(), |
| 895 | oat_file->GetOatHeader().GetImageFileLocationOatChecksum(), |
| 896 | oat_file->GetOatHeader().GetImageFileLocationOatDataBegin(), |
| 897 | image_file.c_str(), image_oat_checksum, image_oat_data_begin); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 898 | } |
| 899 | if (!dex_check) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 900 | *error_msg = StringPrintf("oat file '%s' mismatch (0x%x) with '%s' (0x%x)", |
| 901 | oat_file->GetLocation().c_str(), |
| 902 | oat_dex_file->GetDexFileLocationChecksum(), |
| 903 | dex_location, dex_location_checksum); |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 904 | } |
| 905 | return false; |
| 906 | } |
| 907 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 908 | const DexFile* ClassLinker::VerifyAndOpenDexFileFromOatFile(const std::string& oat_file_location, |
| 909 | const char* dex_location, |
| 910 | std::string* error_msg, |
| 911 | bool* open_failed) { |
| 912 | UniquePtr<const OatFile> oat_file(FindOatFileFromOatLocation(oat_file_location, error_msg)); |
| 913 | if (oat_file.get() == nullptr) { |
| 914 | *open_failed = true; |
| 915 | return nullptr; |
Brian Carlstrom | afe2551 | 2012-06-27 17:02:58 -0700 | [diff] [blame] | 916 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 917 | *open_failed = false; |
| 918 | uint32_t dex_location_checksum; |
| 919 | if (!DexFile::GetChecksum(dex_location, &dex_location_checksum, error_msg)) { |
| 920 | // If no classes.dex found in dex_location, it has been stripped or is corrupt, assume oat is |
| 921 | // up-to-date. This is the common case in user builds for jar's and apk's in the /system |
| 922 | // directory. |
| 923 | const OatFile* opened_oat_file = oat_file.release(); |
| 924 | opened_oat_file = RegisterOatFile(opened_oat_file); |
| 925 | const OatFile::OatDexFile* oat_dex_file = opened_oat_file->GetOatDexFile(dex_location, NULL); |
| 926 | if (oat_dex_file == nullptr) { |
| 927 | *error_msg = StringPrintf("Dex checksum mismatch for location '%s' and failed to find oat " |
| 928 | "dex file '%s': %s", oat_file_location.c_str(), dex_location, |
| 929 | error_msg->c_str()); |
| 930 | return nullptr; |
| 931 | } |
| 932 | return oat_dex_file->OpenDexFile(error_msg); |
| 933 | } |
| 934 | |
| 935 | bool verified = VerifyOatFileChecksums(oat_file.get(), dex_location, dex_location_checksum, |
| 936 | error_msg); |
| 937 | if (!verified) { |
| 938 | return nullptr; |
| 939 | } |
| 940 | const OatFile* opened_oat_file = oat_file.release(); |
| 941 | opened_oat_file = RegisterOatFile(opened_oat_file); |
| 942 | return opened_oat_file->GetOatDexFile(dex_location, |
| 943 | &dex_location_checksum)->OpenDexFile(error_msg); |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 944 | } |
| 945 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 946 | const DexFile* ClassLinker::FindDexFileInOatFileFromDexLocation(const char* dex_location, |
| 947 | uint32_t dex_location_checksum, |
| 948 | std::string* error_msg) { |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 949 | const OatFile* open_oat_file = FindOpenedOatFileFromDexLocation(dex_location, |
| 950 | dex_location_checksum); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 951 | if (open_oat_file != nullptr) { |
| 952 | const OatFile::OatDexFile* oat_dex_file = open_oat_file->GetOatDexFile(dex_location, |
| 953 | &dex_location_checksum); |
| 954 | return oat_dex_file->OpenDexFile(error_msg); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 955 | } |
| 956 | |
Brian Carlstrom | 46b8a62 | 2012-06-19 23:13:22 -0700 | [diff] [blame] | 957 | // Look for an existing file next to dex. for example, for |
Brian Carlstrom | 30e2ea4 | 2013-06-19 23:25:37 -0700 | [diff] [blame] | 958 | // /foo/bar/baz.jar, look for /foo/bar/baz.odex. |
| 959 | std::string odex_filename(OatFile::DexFilenameToOdexFilename(dex_location)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 960 | bool open_failed; |
| 961 | const DexFile* dex_file = VerifyAndOpenDexFileFromOatFile(odex_filename, dex_location, |
| 962 | error_msg, &open_failed); |
| 963 | if (dex_file != nullptr) { |
| 964 | return dex_file; |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 965 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 966 | std::string cache_error_msg; |
Brian Carlstrom | 30e2ea4 | 2013-06-19 23:25:37 -0700 | [diff] [blame] | 967 | std::string cache_location(GetDalvikCacheFilenameOrDie(dex_location)); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 968 | dex_file = VerifyAndOpenDexFileFromOatFile(cache_location, dex_location, &cache_error_msg, |
| 969 | &open_failed); |
| 970 | if (dex_file != nullptr) { |
| 971 | return dex_file; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 972 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 973 | if (!open_failed && TEMP_FAILURE_RETRY(unlink(cache_location.c_str())) != 0) { |
| 974 | PLOG(FATAL) << "Failed to remove obsolete oat file from " << cache_location; |
| 975 | } |
| 976 | VLOG(class_linker) << "Failed to open oat file from " << odex_filename |
| 977 | << " (error '" << *error_msg << "') or " << cache_location |
| 978 | << " (error '" << cache_error_msg << "')."; |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 979 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 980 | // 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] | 981 | error_msg->clear(); |
| 982 | return FindOrCreateOatFileForDexLocation(dex_location, dex_location_checksum, |
| 983 | cache_location.c_str(), error_msg); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 984 | } |
| 985 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 986 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 987 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 988 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 989 | const OatFile* oat_file = oat_files_[i]; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 990 | DCHECK(oat_file != nullptr); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 991 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 992 | return oat_file; |
| 993 | } |
| 994 | } |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 995 | return nullptr; |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 996 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 997 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 998 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location, |
| 999 | std::string* error_msg) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 1000 | const OatFile* oat_file = FindOpenedOatFileFromOatLocation(oat_location); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1001 | if (oat_file != nullptr) { |
jeffhao | f6174e8 | 2012-01-31 16:14:17 -0800 | [diff] [blame] | 1002 | return oat_file; |
| 1003 | } |
| 1004 | |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1005 | oat_file = OatFile::Open(oat_location, oat_location, NULL, !Runtime::Current()->IsCompiler(), |
| 1006 | error_msg); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1007 | if (oat_file == NULL) { |
Brian Carlstrom | a004aa9 | 2012-02-08 18:05:09 -0800 | [diff] [blame] | 1008 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1009 | } |
| 1010 | return oat_file; |
| 1011 | } |
| 1012 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1013 | static void InitFromImageInterpretOnlyCallback(mirror::Object* obj, void* arg) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1014 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1015 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
| 1016 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1017 | DCHECK(obj != NULL); |
| 1018 | DCHECK(class_linker != NULL); |
| 1019 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1020 | if (obj->IsArtMethod()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1021 | mirror::ArtMethod* method = obj->AsArtMethod(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1022 | if (!method->IsNative()) { |
| 1023 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
| 1024 | if (method != Runtime::Current()->GetResolutionMethod()) { |
| 1025 | method->SetEntryPointFromCompiledCode(GetCompiledCodeToInterpreterBridge()); |
| 1026 | } |
| 1027 | } |
| 1028 | } |
| 1029 | } |
| 1030 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1031 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1032 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1033 | CHECK(!init_done_); |
| 1034 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1035 | Thread* self = Thread::Current(); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1036 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 1037 | gc::space::ImageSpace* space = heap->GetImageSpace(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1038 | dex_cache_image_class_lookup_required_ = true; |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1039 | CHECK(space != NULL); |
| 1040 | OatFile& oat_file = GetImageOatFile(space); |
| 1041 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatChecksum(), 0U); |
| 1042 | CHECK_EQ(oat_file.GetOatHeader().GetImageFileLocationOatDataBegin(), 0U); |
| 1043 | CHECK(oat_file.GetOatHeader().GetImageFileLocation().empty()); |
| 1044 | portable_resolution_trampoline_ = oat_file.GetOatHeader().GetPortableResolutionTrampoline(); |
| 1045 | quick_resolution_trampoline_ = oat_file.GetOatHeader().GetQuickResolutionTrampoline(); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1046 | portable_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetPortableImtConflictTrampoline(); |
| 1047 | quick_imt_conflict_trampoline_ = oat_file.GetOatHeader().GetQuickImtConflictTrampoline(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1048 | mirror::Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 1049 | mirror::ObjectArray<mirror::DexCache>* dex_caches = |
| 1050 | dex_caches_object->AsObjectArray<mirror::DexCache>(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1051 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1052 | SirtRef<mirror::ObjectArray<mirror::Class> > class_roots( |
| 1053 | self, |
| 1054 | space->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots)->AsObjectArray<mirror::Class>()); |
| 1055 | class_roots_ = class_roots.get(); |
Mathieu Chartier | 02b6a78 | 2012-10-26 13:51:26 -0700 | [diff] [blame] | 1056 | |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1057 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 1058 | // as being Strings or not |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1059 | mirror::String::SetClass(GetClassRoot(kJavaLangString)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1060 | |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1061 | CHECK_EQ(oat_file.GetOatHeader().GetDexFileCount(), |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1062 | static_cast<uint32_t>(dex_caches->GetLength())); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1063 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1064 | SirtRef<mirror::DexCache> dex_cache(self, dex_caches->Get(i)); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1065 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1066 | const OatFile::OatDexFile* oat_dex_file = oat_file.GetOatDexFile(dex_file_location.c_str(), |
| 1067 | nullptr); |
Brian Carlstrom | 56d947f | 2013-07-15 13:14:23 -0700 | [diff] [blame] | 1068 | CHECK(oat_dex_file != NULL) << oat_file.GetLocation() << " " << dex_file_location; |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1069 | std::string error_msg; |
| 1070 | const DexFile* dex_file = oat_dex_file->OpenDexFile(&error_msg); |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1071 | if (dex_file == NULL) { |
| 1072 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1073 | << " from within oat file " << oat_file.GetLocation() |
| 1074 | << " error '" << error_msg << "'"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1075 | } |
Brian Carlstrom | fddf6f6 | 2012-03-15 16:56:45 -0700 | [diff] [blame] | 1076 | |
| 1077 | CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); |
| 1078 | |
| 1079 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1080 | } |
| 1081 | |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1082 | // Set classes on AbstractMethod early so that IsMethod tests can be performed during the live |
| 1083 | // bitmap walk. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1084 | mirror::ArtMethod::SetClass(GetClassRoot(kJavaLangReflectArtMethod)); |
Anwar Ghuloum | c4f105d | 2013-04-10 16:12:11 -0700 | [diff] [blame] | 1085 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1086 | // Set entry point to interpreter if in InterpretOnly mode. |
| 1087 | if (Runtime::Current()->GetInstrumentation()->InterpretOnly()) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1088 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1089 | heap->VisitObjects(InitFromImageInterpretOnlyCallback, this); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 1090 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1091 | |
| 1092 | // reinit class_roots_ |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1093 | mirror::Class::SetClassClass(class_roots->Get(kJavaLangClass)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1094 | class_roots_ = class_roots.get(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1095 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1096 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1097 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 1098 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1099 | // String class root was set above |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1100 | mirror::ArtField::SetClass(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1101 | mirror::BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 1102 | mirror::ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 1103 | mirror::CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 1104 | mirror::DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 1105 | mirror::FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 1106 | mirror::IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 1107 | mirror::LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 1108 | mirror::ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 1109 | mirror::Throwable::SetClass(GetClassRoot(kJavaLangThrowable)); |
| 1110 | mirror::StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1111 | |
| 1112 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 1113 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1114 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1115 | } |
| 1116 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1117 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 1118 | // reinit references to when reinitializing a ClassLinker from a |
| 1119 | // mapped image. |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1120 | 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] | 1121 | class_roots_ = down_cast<mirror::ObjectArray<mirror::Class>*>(visitor(class_roots_, arg)); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1122 | Thread* self = Thread::Current(); |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1123 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1124 | ReaderMutexLock mu(self, dex_lock_); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1125 | if (!only_dirty || dex_caches_dirty_) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1126 | for (mirror::DexCache*& dex_cache : dex_caches_) { |
| 1127 | dex_cache = down_cast<mirror::DexCache*>(visitor(dex_cache, arg)); |
| 1128 | DCHECK(dex_cache != nullptr); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1129 | } |
| 1130 | if (clean_dirty) { |
| 1131 | dex_caches_dirty_ = false; |
| 1132 | } |
Elliott Hughes | f834936 | 2012-06-18 15:00:06 -0700 | [diff] [blame] | 1133 | } |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1134 | } |
| 1135 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1136 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1137 | WriterMutexLock mu(self, *Locks::classlinker_classes_lock_); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1138 | if (!only_dirty || class_table_dirty_) { |
Mathieu Chartier | b307052 | 2013-09-17 14:18:21 -0700 | [diff] [blame] | 1139 | for (std::pair<const size_t, mirror::Class*>& it : class_table_) { |
| 1140 | it.second = down_cast<mirror::Class*>(visitor(it.second, arg)); |
| 1141 | DCHECK(it.second != nullptr); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1142 | } |
| 1143 | if (clean_dirty) { |
| 1144 | class_table_dirty_ = false; |
| 1145 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1146 | } |
Mathieu Chartier | 262e5ff | 2012-06-01 17:35:38 -0700 | [diff] [blame] | 1147 | |
| 1148 | // We deliberately ignore the class roots in the image since we |
| 1149 | // handle image roots by using the MS/CMS rescanning of dirty cards. |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1150 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 1151 | |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1152 | array_iftable_ = reinterpret_cast<mirror::IfTable*>(visitor(array_iftable_, arg)); |
| 1153 | DCHECK(array_iftable_ != nullptr); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1154 | } |
| 1155 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1156 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) { |
| 1157 | if (dex_cache_image_class_lookup_required_) { |
| 1158 | MoveImageClassesToClassTable(); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1159 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1160 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1161 | for (const std::pair<size_t, mirror::Class*>& it : class_table_) { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1162 | if (!visitor(it.second, arg)) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1163 | return; |
| 1164 | } |
| 1165 | } |
| 1166 | } |
| 1167 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1168 | static bool GetClassesVisitor(mirror::Class* c, void* arg) { |
| 1169 | std::set<mirror::Class*>* classes = reinterpret_cast<std::set<mirror::Class*>*>(arg); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1170 | classes->insert(c); |
| 1171 | return true; |
| 1172 | } |
| 1173 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1174 | void ClassLinker::VisitClassesWithoutClassesLock(ClassVisitor* visitor, void* arg) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1175 | std::set<mirror::Class*> classes; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1176 | VisitClasses(GetClassesVisitor, &classes); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 1177 | for (mirror::Class* klass : classes) { |
| 1178 | if (!visitor(klass, arg)) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1179 | return; |
| 1180 | } |
| 1181 | } |
| 1182 | } |
| 1183 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1184 | ClassLinker::~ClassLinker() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1185 | mirror::Class::ResetClass(); |
| 1186 | mirror::String::ResetClass(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1187 | mirror::ArtField::ResetClass(); |
| 1188 | mirror::ArtMethod::ResetClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1189 | mirror::BooleanArray::ResetArrayClass(); |
| 1190 | mirror::ByteArray::ResetArrayClass(); |
| 1191 | mirror::CharArray::ResetArrayClass(); |
| 1192 | mirror::DoubleArray::ResetArrayClass(); |
| 1193 | mirror::FloatArray::ResetArrayClass(); |
| 1194 | mirror::IntArray::ResetArrayClass(); |
| 1195 | mirror::LongArray::ResetArrayClass(); |
| 1196 | mirror::ShortArray::ResetArrayClass(); |
| 1197 | mirror::Throwable::ResetClass(); |
| 1198 | mirror::StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 1199 | STLDeleteElements(&boot_class_path_); |
| 1200 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1201 | } |
| 1202 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1203 | mirror::DexCache* ClassLinker::AllocDexCache(Thread* self, const DexFile& dex_file) { |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1204 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1205 | SirtRef<mirror::Class> dex_cache_class(self, GetClassRoot(kJavaLangDexCache)); |
| 1206 | SirtRef<mirror::DexCache> dex_cache( |
| 1207 | self, down_cast<mirror::DexCache*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1208 | heap->AllocObject<true>(self, dex_cache_class.get(), dex_cache_class->GetObjectSize()))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1209 | if (dex_cache.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1210 | return NULL; |
| 1211 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1212 | SirtRef<mirror::String> |
| 1213 | location(self, intern_table_->InternStrong(dex_file.GetLocation().c_str())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1214 | if (location.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1215 | return NULL; |
| 1216 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1217 | SirtRef<mirror::ObjectArray<mirror::String> > |
| 1218 | strings(self, AllocStringArray(self, dex_file.NumStringIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1219 | if (strings.get() == NULL) { |
| 1220 | return NULL; |
| 1221 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1222 | SirtRef<mirror::ObjectArray<mirror::Class> > |
| 1223 | types(self, AllocClassArray(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1224 | if (types.get() == NULL) { |
| 1225 | return NULL; |
| 1226 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1227 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
| 1228 | methods(self, AllocArtMethodArray(self, dex_file.NumMethodIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1229 | if (methods.get() == NULL) { |
| 1230 | return NULL; |
| 1231 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1232 | SirtRef<mirror::ObjectArray<mirror::ArtField> > |
| 1233 | fields(self, AllocArtFieldArray(self, dex_file.NumFieldIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1234 | if (fields.get() == NULL) { |
| 1235 | return NULL; |
| 1236 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1237 | SirtRef<mirror::ObjectArray<mirror::StaticStorageBase> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1238 | initialized_static_storage(self, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1239 | AllocObjectArray<mirror::StaticStorageBase>(self, dex_file.NumTypeIds())); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1240 | if (initialized_static_storage.get() == NULL) { |
| 1241 | return NULL; |
| 1242 | } |
| 1243 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1244 | dex_cache->Init(&dex_file, location.get(), strings.get(), types.get(), methods.get(), |
| 1245 | fields.get(), initialized_static_storage.get()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1246 | return dex_cache.get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1247 | } |
| 1248 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1249 | mirror::Class* ClassLinker::AllocClass(Thread* self, mirror::Class* java_lang_Class, |
| 1250 | size_t class_size) { |
| 1251 | DCHECK_GE(class_size, sizeof(mirror::Class)); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 1252 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1253 | mirror::Object* k = |
| 1254 | kMovingClasses ? |
| 1255 | heap->AllocObject<true>(self, java_lang_Class, class_size) : |
| 1256 | heap->AllocNonMovableObject<true>(self, java_lang_Class, class_size); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1257 | if (UNLIKELY(k == NULL)) { |
| 1258 | CHECK(self->IsExceptionPending()); // OOME. |
| 1259 | return NULL; |
| 1260 | } |
| 1261 | mirror::Class* klass = k->AsClass(); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1262 | klass->SetPrimitiveType(Primitive::kPrimNot); // Default to not being primitive. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1263 | klass->SetClassSize(class_size); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1264 | klass->SetDexClassDefIndex(DexFile::kDexNoIndex16); // Default to no valid class def index. |
| 1265 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); // Default to no valid type index. |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1266 | return klass; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1267 | } |
| 1268 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1269 | mirror::Class* ClassLinker::AllocClass(Thread* self, size_t class_size) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1270 | return AllocClass(self, GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1271 | } |
| 1272 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1273 | mirror::ArtField* ClassLinker::AllocArtField(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1274 | return down_cast<mirror::ArtField*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1275 | GetClassRoot(kJavaLangReflectArtField)->AllocNonMovableObject(self)); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1276 | } |
| 1277 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1278 | mirror::ArtMethod* ClassLinker::AllocArtMethod(Thread* self) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1279 | return down_cast<mirror::ArtMethod*>( |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 1280 | GetClassRoot(kJavaLangReflectArtMethod)->AllocNonMovableObject(self)); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1281 | } |
| 1282 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1283 | mirror::ObjectArray<mirror::StackTraceElement>* ClassLinker::AllocStackTraceElementArray( |
| 1284 | Thread* self, size_t length) { |
| 1285 | return mirror::ObjectArray<mirror::StackTraceElement>::Alloc( |
| 1286 | self, GetClassRoot(kJavaLangStackTraceElementArrayClass), length); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1287 | } |
| 1288 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1289 | static mirror::Class* EnsureResolved(Thread* self, mirror::Class* klass) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1290 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1291 | DCHECK(klass != NULL); |
| 1292 | // Wait for the class if it has not already been linked. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1293 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1294 | SirtRef<mirror::Class> sirt_class(self, klass); |
| 1295 | ObjectLock<mirror::Class> lock(self, &sirt_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1296 | // Check for circular dependencies between classes. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1297 | if (!sirt_class->IsResolved() && sirt_class->GetClinitThreadId() == self->GetTid()) { |
| 1298 | ThrowClassCircularityError(sirt_class.get()); |
| 1299 | sirt_class->SetStatus(mirror::Class::kStatusError, self); |
| 1300 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1301 | } |
| 1302 | // Wait for the pending initialization to complete. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1303 | while (!sirt_class->IsResolved() && !sirt_class->IsErroneous()) { |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 1304 | lock.WaitIgnoringInterrupts(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1305 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1306 | klass = sirt_class.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1307 | } |
| 1308 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1309 | ThrowEarlierClassFailure(klass); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1310 | return nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1311 | } |
| 1312 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1313 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1314 | self->AssertNoPendingException(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1315 | return klass; |
| 1316 | } |
| 1317 | |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1318 | bool ClassLinker::IsInBootClassPath(const char* descriptor) { |
| 1319 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1320 | return pair.second != NULL; |
| 1321 | } |
| 1322 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1323 | mirror::Class* ClassLinker::FindSystemClass(const char* descriptor) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1324 | SirtRef<mirror::ClassLoader> class_loader(Thread::Current(), nullptr); |
| 1325 | return FindClass(descriptor, class_loader); |
Elliott Hughes | db7d5e9 | 2011-12-16 18:47:37 -0800 | [diff] [blame] | 1326 | } |
| 1327 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1328 | mirror::Class* ClassLinker::FindClass(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1329 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 1330 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1331 | Thread* self = Thread::Current(); |
| 1332 | DCHECK(self != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1333 | self->AssertNoPendingException(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1334 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1335 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1336 | // for primitive classes that aren't backed by dex files. |
| 1337 | return FindPrimitiveClass(descriptor[0]); |
| 1338 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1339 | // Find the class in the loaded classes table. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1340 | mirror::Class* klass = LookupClass(descriptor, class_loader.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1341 | if (klass != NULL) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1342 | return EnsureResolved(self, klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1343 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1344 | // Class is not yet loaded. |
| 1345 | if (descriptor[0] == '[') { |
| 1346 | return CreateArrayClass(descriptor, class_loader); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1347 | } else if (class_loader.get() == nullptr) { |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1348 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1349 | if (pair.second != NULL) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1350 | SirtRef<mirror::ClassLoader> class_loader(self, nullptr); |
| 1351 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1352 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 1353 | } else if (Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1354 | // First try the boot class path, we check the descriptor first to avoid an unnecessary |
| 1355 | // throw of a NoClassDefFoundError. |
| 1356 | if (IsInBootClassPath(descriptor)) { |
| 1357 | mirror::Class* system_class = FindSystemClass(descriptor); |
| 1358 | CHECK(system_class != NULL); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1359 | return system_class; |
| 1360 | } |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1361 | // Next try the compile time class path. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1362 | const std::vector<const DexFile*>* class_path; |
| 1363 | { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1364 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1365 | ScopedLocalRef<jobject> jclass_loader(soa.Env(), |
| 1366 | soa.AddLocalReference<jobject>(class_loader.get())); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1367 | class_path = &Runtime::Current()->GetCompileTimeClassPath(jclass_loader.get()); |
| 1368 | } |
| 1369 | |
| 1370 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, *class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1371 | if (pair.second != NULL) { |
| 1372 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1373 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1374 | |
| 1375 | } else { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1376 | ScopedObjectAccessUnchecked soa(self->GetJniEnv()); |
| 1377 | ScopedLocalRef<jobject> class_loader_object(soa.Env(), |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1378 | soa.AddLocalReference<jobject>(class_loader.get())); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1379 | std::string class_name_string(DescriptorToDot(descriptor)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1380 | ScopedLocalRef<jobject> result(soa.Env(), NULL); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1381 | { |
| 1382 | ScopedThreadStateChange tsc(self, kNative); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1383 | ScopedLocalRef<jobject> class_name_object(soa.Env(), |
| 1384 | soa.Env()->NewStringUTF(class_name_string.c_str())); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1385 | if (class_name_object.get() == NULL) { |
| 1386 | return NULL; |
| 1387 | } |
| 1388 | CHECK(class_loader_object.get() != NULL); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1389 | result.reset(soa.Env()->CallObjectMethod(class_loader_object.get(), |
| 1390 | WellKnownClasses::java_lang_ClassLoader_loadClass, |
| 1391 | class_name_object.get())); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1392 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1393 | if (soa.Self()->IsExceptionPending()) { |
Elliott Hughes | 748382f | 2012-01-26 18:07:38 -0800 | [diff] [blame] | 1394 | // If the ClassLoader threw, pass that exception up. |
| 1395 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1396 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1397 | // broken loader - throw NPE to be compatible with Dalvik |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1398 | ThrowNullPointerException(NULL, StringPrintf("ClassLoader.loadClass returned null for %s", |
| 1399 | class_name_string.c_str()).c_str()); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1400 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1401 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1402 | // success, return mirror::Class* |
| 1403 | return soa.Decode<mirror::Class*>(result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1404 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1405 | } |
| 1406 | |
Elliott Hughes | 82914b6 | 2012-04-09 15:56:29 -0700 | [diff] [blame] | 1407 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(descriptor).c_str()); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1408 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1409 | } |
| 1410 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1411 | mirror::Class* ClassLinker::DefineClass(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1412 | const SirtRef<mirror::ClassLoader>& class_loader, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1413 | const DexFile& dex_file, |
| 1414 | const DexFile::ClassDef& dex_class_def) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1415 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1416 | SirtRef<mirror::Class> klass(self, NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1417 | // Load the class from the dex file. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1418 | if (UNLIKELY(!init_done_)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1419 | // finish up init of hand crafted class_roots_ |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1420 | if (strcmp(descriptor, "Ljava/lang/Object;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1421 | klass.reset(GetClassRoot(kJavaLangObject)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1422 | } else if (strcmp(descriptor, "Ljava/lang/Class;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1423 | klass.reset(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1424 | } else if (strcmp(descriptor, "Ljava/lang/String;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1425 | klass.reset(GetClassRoot(kJavaLangString)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1426 | } else if (strcmp(descriptor, "Ljava/lang/DexCache;") == 0) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1427 | klass.reset(GetClassRoot(kJavaLangDexCache)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1428 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtField;") == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1429 | klass.reset(GetClassRoot(kJavaLangReflectArtField)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1430 | } else if (strcmp(descriptor, "Ljava/lang/reflect/ArtMethod;") == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1431 | klass.reset(GetClassRoot(kJavaLangReflectArtMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1432 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1433 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1434 | } |
| 1435 | } else { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1436 | klass.reset(AllocClass(self, SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1437 | } |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1438 | if (UNLIKELY(klass.get() == NULL)) { |
| 1439 | CHECK(self->IsExceptionPending()); // Expect an OOME. |
| 1440 | return NULL; |
| 1441 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1442 | klass->SetDexCache(FindDexCache(dex_file)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1443 | LoadClass(dex_file, dex_class_def, klass, class_loader.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1444 | // Check for a pending exception during load |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1445 | if (self->IsExceptionPending()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1446 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1447 | return NULL; |
| 1448 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1449 | ObjectLock<mirror::Class> lock(self, &klass); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1450 | klass->SetClinitThreadId(self->GetTid()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1451 | // Add the newly loaded class to the loaded classes table. |
| 1452 | mirror::Class* existing = InsertClass(descriptor, klass.get(), Hash(descriptor)); |
| 1453 | if (existing != NULL) { |
| 1454 | // We failed to insert because we raced with another thread. Calling EnsureResolved may cause |
| 1455 | // this thread to block. |
| 1456 | return EnsureResolved(self, existing); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1457 | } |
| 1458 | // Finish loading (if necessary) by finding parents |
| 1459 | CHECK(!klass->IsLoaded()); |
| 1460 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1461 | // Loading failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1462 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1463 | return NULL; |
| 1464 | } |
| 1465 | CHECK(klass->IsLoaded()); |
| 1466 | // Link the class (if necessary) |
| 1467 | CHECK(!klass->IsResolved()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1468 | // TODO: Use fast jobjects? |
| 1469 | SirtRef<mirror::ObjectArray<mirror::Class> > interfaces(self, nullptr); |
| 1470 | if (!LinkClass(self, klass, interfaces)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1471 | // Linking failed. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1472 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1473 | return NULL; |
| 1474 | } |
| 1475 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1476 | |
| 1477 | /* |
| 1478 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1479 | * definition of "preparation" is creating the static fields for a |
| 1480 | * class and initializing them to the standard default values, but not |
| 1481 | * executing any code (that comes later, during "initialization"). |
| 1482 | * |
| 1483 | * We did the static preparation in LinkClass. |
| 1484 | * |
| 1485 | * The class has been prepared and resolved but possibly not yet verified |
| 1486 | * at this point. |
| 1487 | */ |
| 1488 | Dbg::PostClassPrepare(klass.get()); |
| 1489 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1490 | return klass.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1491 | } |
| 1492 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1493 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
| 1494 | size_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
| 1495 | const DexFile::ClassDef& dex_class_def) { |
| 1496 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1497 | size_t num_ref = 0; |
| 1498 | size_t num_32 = 0; |
| 1499 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1500 | if (class_data != NULL) { |
| 1501 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1502 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1503 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1504 | char c = descriptor[0]; |
| 1505 | if (c == 'L' || c == '[') { |
| 1506 | num_ref++; |
| 1507 | } else if (c == 'J' || c == 'D') { |
| 1508 | num_64++; |
| 1509 | } else { |
| 1510 | num_32++; |
| 1511 | } |
| 1512 | } |
| 1513 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1514 | // start with generic class data |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1515 | size_t size = sizeof(mirror::Class); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1516 | // follow with reference fields which must be contiguous at start |
| 1517 | size += (num_ref * sizeof(uint32_t)); |
| 1518 | // 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] | 1519 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1520 | if (num_32 != 0) { |
| 1521 | // use an available 32-bit field for padding |
| 1522 | num_32--; |
| 1523 | } |
| 1524 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1525 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1526 | } |
| 1527 | // tack on any 64-bit fields now that alignment is assured |
| 1528 | size += (num_64 * sizeof(uint64_t)); |
| 1529 | // tack on any remaining 32-bit fields |
| 1530 | size += (num_32 * sizeof(uint32_t)); |
| 1531 | return size; |
| 1532 | } |
| 1533 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1534 | const OatFile::OatClass* ClassLinker::GetOatClass(const DexFile& dex_file, uint16_t class_def_idx) { |
| 1535 | DCHECK_NE(class_def_idx, DexFile::kDexNoIndex16); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1536 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1537 | CHECK(oat_file != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 1538 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 1539 | 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] | 1540 | &dex_location_checksum); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1541 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation(); |
| 1542 | const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_idx); |
| 1543 | CHECK(oat_class != NULL) << dex_file.GetLocation() << " " << class_def_idx; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1544 | return oat_class; |
| 1545 | } |
| 1546 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1547 | static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, uint16_t class_def_idx, |
| 1548 | uint32_t method_idx) { |
| 1549 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_idx); |
| 1550 | const byte* class_data = dex_file.GetClassData(class_def); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1551 | CHECK(class_data != NULL); |
| 1552 | ClassDataItemIterator it(dex_file, class_data); |
| 1553 | // Skip fields |
| 1554 | while (it.HasNextStaticField()) { |
| 1555 | it.Next(); |
| 1556 | } |
| 1557 | while (it.HasNextInstanceField()) { |
| 1558 | it.Next(); |
| 1559 | } |
| 1560 | // Process methods |
| 1561 | size_t class_def_method_index = 0; |
| 1562 | while (it.HasNextDirectMethod()) { |
| 1563 | if (it.GetMemberIndex() == method_idx) { |
| 1564 | return class_def_method_index; |
| 1565 | } |
| 1566 | class_def_method_index++; |
| 1567 | it.Next(); |
| 1568 | } |
| 1569 | while (it.HasNextVirtualMethod()) { |
| 1570 | if (it.GetMemberIndex() == method_idx) { |
| 1571 | return class_def_method_index; |
| 1572 | } |
| 1573 | class_def_method_index++; |
| 1574 | it.Next(); |
| 1575 | } |
| 1576 | DCHECK(!it.HasNext()); |
| 1577 | LOG(FATAL) << "Failed to find method index " << method_idx << " in " << dex_file.GetLocation(); |
| 1578 | return 0; |
| 1579 | } |
| 1580 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1581 | const OatFile::OatMethod ClassLinker::GetOatMethodFor(const mirror::ArtMethod* method) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1582 | // 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] | 1583 | // method for direct methods (or virtual methods made direct). |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1584 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1585 | size_t oat_method_index; |
| 1586 | if (method->IsStatic() || method->IsDirect()) { |
| 1587 | // Simple case where the oat method index was stashed at load time. |
| 1588 | oat_method_index = method->GetMethodIndex(); |
| 1589 | } else { |
| 1590 | // We're invoking a virtual method directly (thanks to sharpening), compute the oat_method_index |
| 1591 | // by search for its position in the declared virtual methods. |
| 1592 | oat_method_index = declaring_class->NumDirectMethods(); |
| 1593 | size_t end = declaring_class->NumVirtualMethods(); |
| 1594 | bool found = false; |
| 1595 | for (size_t i = 0; i < end; i++) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1596 | if (declaring_class->GetVirtualMethod(i) == method) { |
| 1597 | found = true; |
| 1598 | break; |
| 1599 | } |
Ian Rogers | f320b63 | 2012-03-13 18:47:47 -0700 | [diff] [blame] | 1600 | oat_method_index++; |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1601 | } |
| 1602 | CHECK(found) << "Didn't find oat method index for virtual method: " << PrettyMethod(method); |
| 1603 | } |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1604 | UniquePtr<const OatFile::OatClass> |
| 1605 | oat_class(GetOatClass(*declaring_class->GetDexCache()->GetDexFile(), |
| 1606 | declaring_class->GetDexClassDefIndex())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1607 | CHECK(oat_class.get() != NULL); |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1608 | DCHECK_EQ(oat_method_index, |
| 1609 | GetOatMethodIndexFromMethodIndex(*declaring_class->GetDexCache()->GetDexFile(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1610 | method->GetDeclaringClass()->GetDexClassDefIndex(), |
Mathieu Chartier | e35517a | 2012-10-30 18:49:55 -0700 | [diff] [blame] | 1611 | method->GetDexMethodIndex())); |
| 1612 | |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1613 | return oat_class->GetOatMethod(oat_method_index); |
| 1614 | } |
| 1615 | |
| 1616 | // Special case to get oat code without overwriting a trampoline. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1617 | const void* ClassLinker::GetOatCodeFor(const mirror::ArtMethod* method) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1618 | CHECK(!method->IsAbstract()) << PrettyMethod(method); |
Jeff Hao | 8df6cea | 2013-07-29 13:54:48 -0700 | [diff] [blame] | 1619 | if (method->IsProxyMethod()) { |
| 1620 | #if !defined(ART_USE_PORTABLE_COMPILER) |
| 1621 | return reinterpret_cast<void*>(art_quick_proxy_invoke_handler); |
| 1622 | #else |
| 1623 | return reinterpret_cast<void*>(art_portable_proxy_invoke_handler); |
| 1624 | #endif |
| 1625 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1626 | const void* result = GetOatMethodFor(method).GetCode(); |
| 1627 | if (result == NULL) { |
| 1628 | // No code? You must mean to go into the interpreter. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1629 | result = GetCompiledCodeToInterpreterBridge(); |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1630 | } |
| 1631 | return result; |
TDYa127 | 8532191 | 2012-04-01 15:24:56 -0700 | [diff] [blame] | 1632 | } |
| 1633 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1634 | const void* ClassLinker::GetOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx, |
| 1635 | uint32_t method_idx) { |
| 1636 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, class_def_idx)); |
| 1637 | CHECK(oat_class.get() != nullptr); |
| 1638 | 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] | 1639 | return oat_class->GetOatMethod(oat_method_idx).GetCode(); |
| 1640 | } |
| 1641 | |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1642 | // Returns true if the method must run with interpreter, false otherwise. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1643 | static bool NeedsInterpreter(const mirror::ArtMethod* method, const void* code) { |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1644 | if (code == NULL) { |
| 1645 | // No code: need interpreter. |
| 1646 | return true; |
| 1647 | } |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 1648 | #ifdef ART_SEA_IR_MODE |
| 1649 | ScopedObjectAccess soa(Thread::Current()); |
| 1650 | if (std::string::npos != PrettyMethod(method).find("fibonacci")) { |
| 1651 | LOG(INFO) << "Found " << PrettyMethod(method); |
| 1652 | return false; |
| 1653 | } |
| 1654 | #endif |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1655 | // If interpreter mode is enabled, every method (except native and proxy) must |
| 1656 | // be run with interpreter. |
| 1657 | return Runtime::Current()->GetInstrumentation()->InterpretOnly() && |
| 1658 | !method->IsNative() && !method->IsProxyMethod(); |
| 1659 | } |
| 1660 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1661 | void ClassLinker::FixupStaticTrampolines(mirror::Class* klass) { |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1662 | if (klass->NumDirectMethods() == 0) { |
| 1663 | return; // No direct methods => no static methods. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1664 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1665 | Runtime* runtime = Runtime::Current(); |
| 1666 | if (!runtime->IsStarted() || runtime->UseCompileTimeClassPath()) { |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1667 | return; // OAT file unavailable. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1668 | } |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1669 | ClassHelper kh(klass); |
| 1670 | const DexFile& dex_file = kh.GetDexFile(); |
| 1671 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 1672 | CHECK(dex_class_def != nullptr); |
| 1673 | const byte* class_data = dex_file.GetClassData(*dex_class_def); |
| 1674 | // There should always be class data if there were direct methods. |
| 1675 | CHECK(class_data != nullptr) << PrettyDescriptor(klass); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1676 | UniquePtr<const OatFile::OatClass> oat_class(GetOatClass(dex_file, klass->GetDexClassDefIndex())); |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1677 | CHECK(oat_class.get() != nullptr); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1678 | ClassDataItemIterator it(dex_file, class_data); |
| 1679 | // Skip fields |
| 1680 | while (it.HasNextStaticField()) { |
| 1681 | it.Next(); |
| 1682 | } |
| 1683 | while (it.HasNextInstanceField()) { |
| 1684 | it.Next(); |
| 1685 | } |
Ian Rogers | 1c82982 | 2013-09-30 18:18:50 -0700 | [diff] [blame] | 1686 | // Link the code of methods skipped by LinkCode. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1687 | for (size_t method_index = 0; it.HasNextDirectMethod(); ++method_index, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1688 | mirror::ArtMethod* method = klass->GetDirectMethod(method_index); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1689 | if (!method->IsStatic()) { |
| 1690 | // Only update static methods. |
| 1691 | continue; |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1692 | } |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1693 | const void* code = oat_class->GetOatMethod(method_index).GetCode(); |
| 1694 | const bool enter_interpreter = NeedsInterpreter(method, code); |
| 1695 | if (enter_interpreter) { |
| 1696 | // Use interpreter entry point. |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1697 | code = GetCompiledCodeToInterpreterBridge(); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1698 | } |
| 1699 | runtime->GetInstrumentation()->UpdateMethodsCode(method, code); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1700 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1701 | // Ignore virtual methods on the iterator. |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1702 | } |
| 1703 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1704 | 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] | 1705 | uint32_t method_index) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1706 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1707 | // Method shouldn't have already been linked. |
Jeff Hao | aa4a793 | 2013-05-13 11:28:27 -0700 | [diff] [blame] | 1708 | DCHECK(method->GetEntryPointFromCompiledCode() == NULL); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1709 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1710 | // non-abstract methods also get their code pointers. |
| 1711 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Brian Carlstrom | 265091e | 2013-01-30 14:08:26 -0800 | [diff] [blame] | 1712 | oat_method.LinkMethod(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1713 | |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1714 | // Install entry point from interpreter. |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 1715 | Runtime* runtime = Runtime::Current(); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1716 | bool enter_interpreter = NeedsInterpreter(method.get(), method->GetEntryPointFromCompiledCode()); |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 1717 | if (enter_interpreter) { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1718 | method->SetEntryPointFromInterpreter(interpreter::artInterpreterToInterpreterBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1719 | } else { |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 1720 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 1721 | } |
| 1722 | |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1723 | if (method->IsAbstract()) { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 1724 | method->SetEntryPointFromCompiledCode(GetCompiledCodeToInterpreterBridge()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1725 | return; |
| 1726 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1727 | |
| 1728 | if (method->IsStatic() && !method->IsConstructor()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1729 | // For static methods excluding the class initializer, install the trampoline. |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1730 | // It will be replaced by the proper entry point by ClassLinker::FixupStaticTrampolines |
| 1731 | // after initializing class (see ClassLinker::InitializeClass method). |
Jeff Hao | 0aba0ba | 2013-06-03 14:49:28 -0700 | [diff] [blame] | 1732 | method->SetEntryPointFromCompiledCode(GetResolutionTrampoline(runtime->GetClassLinker())); |
Sebastien Hertz | 7d658cf | 2013-07-09 10:56:11 +0200 | [diff] [blame] | 1733 | } else if (enter_interpreter) { |
| 1734 | // 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] | 1735 | method->SetEntryPointFromCompiledCode(GetCompiledCodeToInterpreterBridge()); |
Ian Rogers | 0d6de04 | 2012-02-29 08:50:26 -0800 | [diff] [blame] | 1736 | } |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1737 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1738 | if (method->IsNative()) { |
| 1739 | // Unregistering restores the dlsym lookup stub. |
| 1740 | method->UnregisterNative(Thread::Current()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1741 | } |
Ian Rogers | f3e9855 | 2013-03-20 15:49:49 -0700 | [diff] [blame] | 1742 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1743 | // Allow instrumentation its chance to hijack code. |
Jeff Hao | aa4a793 | 2013-05-13 11:28:27 -0700 | [diff] [blame] | 1744 | runtime->GetInstrumentation()->UpdateMethodsCode(method.get(), |
| 1745 | method->GetEntryPointFromCompiledCode()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1746 | } |
| 1747 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1748 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1749 | const DexFile::ClassDef& dex_class_def, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1750 | const SirtRef<mirror::Class>& klass, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1751 | mirror::ClassLoader* class_loader) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1752 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1753 | CHECK(klass->GetDexCache() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1754 | CHECK_EQ(mirror::Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1755 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1756 | CHECK(descriptor != NULL); |
| 1757 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1758 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1759 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1760 | // Make sure that none of our runtime-only flags are set. |
Brian Carlstrom | 8e3fb14 | 2013-10-09 21:00:27 -0700 | [diff] [blame] | 1761 | CHECK_EQ(access_flags & ~kAccJavaFlagsMask, 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1762 | klass->SetAccessFlags(access_flags); |
| 1763 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1764 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 1765 | klass->SetStatus(mirror::Class::kStatusIdx, NULL); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1766 | |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1767 | klass->SetDexClassDefIndex(dex_file.GetIndexForClassDef(dex_class_def)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1768 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1769 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1770 | // Load fields fields. |
| 1771 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1772 | if (class_data == NULL) { |
| 1773 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1774 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1775 | ClassDataItemIterator it(dex_file, class_data); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1776 | Thread* self = Thread::Current(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1777 | if (it.NumStaticFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1778 | mirror::ObjectArray<mirror::ArtField>* statics = AllocArtFieldArray(self, it.NumStaticFields()); |
| 1779 | if (UNLIKELY(statics == NULL)) { |
| 1780 | CHECK(self->IsExceptionPending()); // OOME. |
| 1781 | return; |
| 1782 | } |
| 1783 | klass->SetSFields(statics); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1784 | } |
| 1785 | if (it.NumInstanceFields() != 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1786 | mirror::ObjectArray<mirror::ArtField>* fields = |
| 1787 | AllocArtFieldArray(self, it.NumInstanceFields()); |
| 1788 | if (UNLIKELY(fields == NULL)) { |
| 1789 | CHECK(self->IsExceptionPending()); // OOME. |
| 1790 | return; |
| 1791 | } |
| 1792 | klass->SetIFields(fields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1793 | } |
| 1794 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1795 | SirtRef<mirror::ArtField> sfield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1796 | if (UNLIKELY(sfield.get() == NULL)) { |
| 1797 | CHECK(self->IsExceptionPending()); // OOME. |
| 1798 | return; |
| 1799 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1800 | klass->SetStaticField(i, sfield.get()); |
| 1801 | LoadField(dex_file, it, klass, sfield); |
| 1802 | } |
| 1803 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1804 | SirtRef<mirror::ArtField> ifield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1805 | if (UNLIKELY(ifield.get() == NULL)) { |
| 1806 | CHECK(self->IsExceptionPending()); // OOME. |
| 1807 | return; |
| 1808 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1809 | klass->SetInstanceField(i, ifield.get()); |
| 1810 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1811 | } |
| 1812 | |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1813 | UniquePtr<const OatFile::OatClass> oat_class; |
| 1814 | if (Runtime::Current()->IsStarted() && !Runtime::Current()->UseCompileTimeClassPath()) { |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1815 | oat_class.reset(GetOatClass(dex_file, klass->GetDexClassDefIndex())); |
Brian Carlstrom | f582258 | 2012-03-19 22:34:31 -0700 | [diff] [blame] | 1816 | } |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1817 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1818 | // Load methods. |
| 1819 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1820 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1821 | mirror::ObjectArray<mirror::ArtMethod>* directs = |
| 1822 | AllocArtMethodArray(self, it.NumDirectMethods()); |
| 1823 | if (UNLIKELY(directs == NULL)) { |
| 1824 | CHECK(self->IsExceptionPending()); // OOME. |
| 1825 | return; |
| 1826 | } |
| 1827 | klass->SetDirectMethods(directs); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1828 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1829 | if (it.NumVirtualMethods() != 0) { |
| 1830 | // TODO: append direct methods to class object |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1831 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = |
| 1832 | AllocArtMethodArray(self, it.NumVirtualMethods()); |
| 1833 | if (UNLIKELY(virtuals == NULL)) { |
| 1834 | CHECK(self->IsExceptionPending()); // OOME. |
| 1835 | return; |
| 1836 | } |
| 1837 | klass->SetVirtualMethods(virtuals); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1838 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1839 | size_t class_def_method_index = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1840 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1841 | SirtRef<mirror::ArtMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1842 | if (UNLIKELY(method.get() == NULL)) { |
| 1843 | CHECK(self->IsExceptionPending()); // OOME. |
| 1844 | return; |
| 1845 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1846 | klass->SetDirectMethod(i, method.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1847 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1848 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1849 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1850 | method->SetMethodIndex(class_def_method_index); |
| 1851 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1852 | } |
| 1853 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1854 | SirtRef<mirror::ArtMethod> method(self, LoadMethod(self, dex_file, it, klass)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1855 | if (UNLIKELY(method.get() == NULL)) { |
| 1856 | CHECK(self->IsExceptionPending()); // OOME. |
| 1857 | return; |
| 1858 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1859 | klass->SetVirtualMethod(i, method.get()); |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1860 | DCHECK_EQ(class_def_method_index, it.NumDirectMethods() + i); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1861 | if (oat_class.get() != NULL) { |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1862 | LinkCode(method, oat_class.get(), class_def_method_index); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1863 | } |
Ian Rogers | fb6adba | 2012-03-04 21:51:51 -0800 | [diff] [blame] | 1864 | class_def_method_index++; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1865 | } |
| 1866 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1867 | } |
| 1868 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1869 | void ClassLinker::LoadField(const DexFile& /*dex_file*/, const ClassDataItemIterator& it, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1870 | const SirtRef<mirror::Class>& klass, |
| 1871 | const SirtRef<mirror::ArtField>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1872 | uint32_t field_idx = it.GetMemberIndex(); |
| 1873 | dst->SetDexFieldIndex(field_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1874 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1875 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1876 | } |
| 1877 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1878 | mirror::ArtMethod* ClassLinker::LoadMethod(Thread* self, const DexFile& dex_file, |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1879 | const ClassDataItemIterator& it, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1880 | const SirtRef<mirror::Class>& klass) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1881 | uint32_t dex_method_idx = it.GetMemberIndex(); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1882 | const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1883 | const char* method_name = dex_file.StringDataByIdx(method_id.name_idx_); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1884 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1885 | mirror::ArtMethod* dst = AllocArtMethod(self); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1886 | if (UNLIKELY(dst == NULL)) { |
| 1887 | CHECK(self->IsExceptionPending()); // OOME. |
| 1888 | return NULL; |
| 1889 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1890 | DCHECK(dst->IsArtMethod()) << PrettyDescriptor(dst->GetClass()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1891 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1892 | const char* old_cause = self->StartAssertNoThreadSuspension("LoadMethod"); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1893 | dst->SetDexMethodIndex(dex_method_idx); |
| 1894 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1895 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1896 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1897 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1898 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1899 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1900 | dst->SetDexCacheInitializedStaticStorage(klass->GetDexCache()->GetInitializedStaticStorage()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1901 | |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1902 | uint32_t access_flags = it.GetMemberAccessFlags(); |
| 1903 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1904 | if (UNLIKELY(strcmp("finalize", method_name) == 0)) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1905 | // Set finalizable flag on declaring class. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1906 | if (strcmp("V", dex_file.GetShorty(method_id.proto_idx_)) == 0) { |
| 1907 | // Void return type. |
| 1908 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 1909 | klass->SetFinalizable(); |
| 1910 | } else { |
| 1911 | ClassHelper kh(klass.get()); |
| 1912 | const char* klass_descriptor = kh.GetDescriptor(); |
| 1913 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 1914 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 1915 | // subclasses, so we exclude it here. |
| 1916 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 1917 | // empty. |
| 1918 | if ((strcmp("Ljava/lang/Object;", klass_descriptor) != 0) && |
| 1919 | (strcmp("Ljava/lang/Enum;", klass_descriptor) != 0)) { |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1920 | klass->SetFinalizable(); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1921 | } |
| 1922 | } |
| 1923 | } |
| 1924 | } else if (method_name[0] == '<') { |
| 1925 | // Fix broken access flags for initializers. Bug 11157540. |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1926 | bool is_init = (strcmp("<init>", method_name) == 0); |
| 1927 | bool is_clinit = !is_init && (strcmp("<clinit>", method_name) == 0); |
Ian Rogers | 241b5de | 2013-10-09 17:58:57 -0700 | [diff] [blame] | 1928 | if (UNLIKELY(!is_init && !is_clinit)) { |
| 1929 | LOG(WARNING) << "Unexpected '<' at start of method name " << method_name; |
| 1930 | } else { |
| 1931 | if (UNLIKELY((access_flags & kAccConstructor) == 0)) { |
| 1932 | LOG(WARNING) << method_name << " didn't have expected constructor access flag in class " |
| 1933 | << PrettyDescriptor(klass.get()) << " in dex file " << dex_file.GetLocation(); |
| 1934 | access_flags |= kAccConstructor; |
| 1935 | } |
| 1936 | } |
| 1937 | } |
| 1938 | dst->SetAccessFlags(access_flags); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1939 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1940 | self->EndAssertNoThreadSuspension(old_cause); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1941 | return dst; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1942 | } |
| 1943 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1944 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1945 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1946 | SirtRef<mirror::DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1947 | 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] | 1948 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1949 | } |
| 1950 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1951 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, |
| 1952 | const SirtRef<mirror::DexCache>& dex_cache) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1953 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1954 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1955 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1956 | } |
| 1957 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1958 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1959 | dex_lock_.AssertSharedHeld(Thread::Current()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1960 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1961 | if (dex_caches_[i]->GetDexFile() == &dex_file) { |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 1962 | return true; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1963 | } |
| 1964 | } |
| 1965 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1966 | } |
| 1967 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1968 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1969 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 1970 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1971 | } |
| 1972 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 1973 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, |
| 1974 | const SirtRef<mirror::DexCache>& dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1975 | dex_lock_.AssertExclusiveHeld(Thread::Current()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1976 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 7c3d13a | 2013-09-04 17:15:11 -0700 | [diff] [blame] | 1977 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())) |
| 1978 | << dex_cache->GetLocation()->ToModifiedUtf8() << " " << dex_file.GetLocation(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1979 | dex_caches_.push_back(dex_cache.get()); |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 1980 | dex_cache->SetDexFile(&dex_file); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 1981 | dex_caches_dirty_ = true; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1982 | } |
| 1983 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1984 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1985 | Thread* self = Thread::Current(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1986 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1987 | ReaderMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1988 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1989 | return; |
| 1990 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1991 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1992 | // Don't alloc while holding the lock, since allocation may need to |
| 1993 | // suspend all threads and another thread may need the dex_lock_ to |
| 1994 | // get to a suspend point. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1995 | SirtRef<mirror::DexCache> dex_cache(self, AllocDexCache(self, dex_file)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1996 | 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] | 1997 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 1998 | WriterMutexLock mu(self, dex_lock_); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1999 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 2000 | return; |
| 2001 | } |
| 2002 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2003 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2004 | } |
| 2005 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2006 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, |
| 2007 | const SirtRef<mirror::DexCache>& dex_cache) { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2008 | WriterMutexLock mu(Thread::Current(), dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 2009 | RegisterDexFileLocked(dex_file, dex_cache); |
| 2010 | } |
| 2011 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2012 | mirror::DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2013 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2014 | // Search assuming unique-ness of dex file. |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2015 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2016 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2017 | if (dex_cache->GetDexFile() == &dex_file) { |
| 2018 | return dex_cache; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2019 | } |
| 2020 | } |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2021 | // Search matching by location name. |
| 2022 | std::string location(dex_file.GetLocation()); |
| 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]; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2025 | if (dex_cache->GetDexFile()->GetLocation() == location) { |
| 2026 | return dex_cache; |
| 2027 | } |
| 2028 | } |
| 2029 | // Failure, dump diagnostic and abort. |
| 2030 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2031 | mirror::DexCache* dex_cache = dex_caches_[i]; |
Ian Rogers | 2bcb4a4 | 2012-11-08 10:39:18 -0800 | [diff] [blame] | 2032 | LOG(ERROR) << "Registered dex file " << i << " = " << dex_cache->GetDexFile()->GetLocation(); |
| 2033 | } |
| 2034 | LOG(FATAL) << "Failed to find DexCache for DexFile " << location; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2035 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2036 | } |
| 2037 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2038 | void ClassLinker::FixupDexCaches(mirror::ArtMethod* resolution_method) const { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2039 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2040 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2041 | dex_caches_[i]->Fixup(resolution_method); |
| 2042 | } |
| 2043 | } |
| 2044 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2045 | mirror::Class* ClassLinker::CreatePrimitiveClass(Thread* self, Primitive::Type type) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2046 | mirror::Class* klass = AllocClass(self, sizeof(mirror::Class)); |
| 2047 | if (UNLIKELY(klass == NULL)) { |
| 2048 | return NULL; |
| 2049 | } |
| 2050 | return InitializePrimitiveClass(klass, type); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2051 | } |
| 2052 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2053 | mirror::Class* ClassLinker::InitializePrimitiveClass(mirror::Class* primitive_class, |
| 2054 | Primitive::Type type) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2055 | CHECK(primitive_class != NULL); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2056 | // Must hold lock on object when initializing. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2057 | Thread* self = Thread::Current(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2058 | SirtRef<mirror::Class> sirt_class(self, primitive_class); |
| 2059 | ObjectLock<mirror::Class> lock(self, &sirt_class); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2060 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2061 | primitive_class->SetPrimitiveType(type); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2062 | primitive_class->SetStatus(mirror::Class::kStatusInitialized, self); |
| 2063 | const char* descriptor = Primitive::Descriptor(type); |
| 2064 | mirror::Class* existing = InsertClass(descriptor, primitive_class, Hash(descriptor)); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2065 | CHECK(existing == NULL) << "InitPrimitiveClass(" << type << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2066 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 2067 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2068 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2069 | // Create an array class (i.e. the class object for the array, not the |
| 2070 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 2071 | // "[Ljava/lang/String;". |
| 2072 | // |
| 2073 | // If "descriptor" refers to an array of primitives, look up the |
| 2074 | // primitive type's internally-generated class object. |
| 2075 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2076 | // "class_loader" is the class loader of the class that's referring to |
| 2077 | // us. It's used to ensure that we're looking for the element type in |
| 2078 | // the right context. It does NOT become the class loader for the |
| 2079 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2080 | // |
| 2081 | // Returns NULL with an exception raised on failure. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2082 | mirror::Class* ClassLinker::CreateArrayClass(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2083 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2084 | // Identify the underlying component type |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2085 | CHECK_EQ('[', descriptor[0]); |
| 2086 | mirror::Class* component_type = FindClass(descriptor + 1, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2087 | if (component_type == NULL) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 2088 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2089 | return NULL; |
| 2090 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2091 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2092 | // See if the component type is already loaded. Array classes are |
| 2093 | // always associated with the class loader of their underlying |
| 2094 | // element type -- an array of Strings goes with the loader for |
| 2095 | // java/lang/String -- so we need to look for it there. (The |
| 2096 | // caller should have checked for the existence of the class |
| 2097 | // before calling here, but they did so with *their* class loader, |
| 2098 | // not the component type's loader.) |
| 2099 | // |
| 2100 | // If we find it, the caller adds "loader" to the class' initiating |
| 2101 | // loader list, which should prevent us from going through this again. |
| 2102 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2103 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2104 | // are the same, because our caller (FindClass) just did the |
| 2105 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 2106 | // because we effectively do this lookup again when we add the new |
| 2107 | // class to the hash table --- necessary because of possible races with |
| 2108 | // other threads.) |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2109 | if (class_loader.get() != component_type->GetClassLoader()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2110 | mirror::Class* new_class = LookupClass(descriptor, component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2111 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2112 | return new_class; |
| 2113 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2114 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2115 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2116 | // Fill out the fields in the Class. |
| 2117 | // |
| 2118 | // It is possible to execute some methods against arrays, because |
| 2119 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 2120 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 2121 | // |
| 2122 | // Array classes are simple enough that we don't need to do a full |
| 2123 | // link step. |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2124 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2125 | SirtRef<mirror::Class> new_class(self, NULL); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2126 | if (UNLIKELY(!init_done_)) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2127 | // Classes that were hand created, ie not by FindSystemClass |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2128 | if (strcmp(descriptor, "[Ljava/lang/Class;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2129 | new_class.reset(GetClassRoot(kClassArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2130 | } else if (strcmp(descriptor, "[Ljava/lang/Object;") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2131 | new_class.reset(GetClassRoot(kObjectArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2132 | } else if (strcmp(descriptor, class_roots_descriptors_[kJavaLangStringArrayClass]) == 0) { |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 2133 | new_class.reset(GetClassRoot(kJavaLangStringArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2134 | } else if (strcmp(descriptor, |
| 2135 | class_roots_descriptors_[kJavaLangReflectArtMethodArrayClass]) == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2136 | new_class.reset(GetClassRoot(kJavaLangReflectArtMethodArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2137 | } else if (strcmp(descriptor, |
| 2138 | class_roots_descriptors_[kJavaLangReflectArtFieldArrayClass]) == 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2139 | new_class.reset(GetClassRoot(kJavaLangReflectArtFieldArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2140 | } else if (strcmp(descriptor, "[C") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2141 | new_class.reset(GetClassRoot(kCharArrayClass)); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2142 | } else if (strcmp(descriptor, "[I") == 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2143 | new_class.reset(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2144 | } |
| 2145 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2146 | if (new_class.get() == NULL) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2147 | new_class.reset(AllocClass(self, sizeof(mirror::Class))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2148 | if (new_class.get() == NULL) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2149 | return NULL; |
| 2150 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2151 | new_class->SetComponentType(component_type); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2152 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2153 | 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] | 2154 | DCHECK(new_class->GetComponentType() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2155 | mirror::Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2156 | new_class->SetSuperClass(java_lang_Object); |
| 2157 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2158 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2159 | new_class->SetClassLoader(component_type->GetClassLoader()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2160 | new_class->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2161 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 2162 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2163 | |
| 2164 | |
| 2165 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 2166 | // interfaces. We need to set that up here, so that stuff like |
| 2167 | // "instanceof" works right. |
| 2168 | // |
| 2169 | // Note: The GC could run during the call to FindSystemClass, |
| 2170 | // so we need to make sure the class object is GC-valid while we're in |
| 2171 | // there. Do this by clearing the interface list so the GC will just |
| 2172 | // think that the entries are null. |
| 2173 | |
| 2174 | |
| 2175 | // Use the single, global copies of "interfaces" and "iftable" |
| 2176 | // (remember not to free them for arrays). |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 2177 | CHECK(array_iftable_ != NULL); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2178 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2179 | |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2180 | // Inherit access flags from the component type. |
| 2181 | int access_flags = new_class->GetComponentType()->GetAccessFlags(); |
| 2182 | // Lose any implementation detail flags; in particular, arrays aren't finalizable. |
| 2183 | access_flags &= kAccJavaFlagsMask; |
| 2184 | // 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] | 2185 | // and remove "interface". |
Elliott Hughes | 00626c2 | 2013-06-14 15:04:14 -0700 | [diff] [blame] | 2186 | access_flags |= kAccAbstract | kAccFinal; |
| 2187 | access_flags &= ~kAccInterface; |
| 2188 | |
| 2189 | new_class->SetAccessFlags(access_flags); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2190 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2191 | mirror::Class* existing = InsertClass(descriptor, new_class.get(), Hash(descriptor)); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2192 | if (existing == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2193 | return new_class.get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2194 | } |
| 2195 | // Another thread must have loaded the class after we |
| 2196 | // started but before we finished. Abandon what we've |
| 2197 | // done. |
| 2198 | // |
| 2199 | // (Yes, this happens.) |
| 2200 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2201 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 2202 | } |
| 2203 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2204 | mirror::Class* ClassLinker::FindPrimitiveClass(char type) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2205 | switch (Primitive::GetType(type)) { |
| 2206 | case Primitive::kPrimByte: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2207 | return GetClassRoot(kPrimitiveByte); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2208 | case Primitive::kPrimChar: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2209 | return GetClassRoot(kPrimitiveChar); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2210 | case Primitive::kPrimDouble: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2211 | return GetClassRoot(kPrimitiveDouble); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2212 | case Primitive::kPrimFloat: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2213 | return GetClassRoot(kPrimitiveFloat); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2214 | case Primitive::kPrimInt: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2215 | return GetClassRoot(kPrimitiveInt); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2216 | case Primitive::kPrimLong: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2217 | return GetClassRoot(kPrimitiveLong); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2218 | case Primitive::kPrimShort: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2219 | return GetClassRoot(kPrimitiveShort); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2220 | case Primitive::kPrimBoolean: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2221 | return GetClassRoot(kPrimitiveBoolean); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2222 | case Primitive::kPrimVoid: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2223 | return GetClassRoot(kPrimitiveVoid); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2224 | case Primitive::kPrimNot: |
| 2225 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 2226 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2227 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2228 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 2229 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2230 | } |
| 2231 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2232 | mirror::Class* ClassLinker::InsertClass(const char* descriptor, mirror::Class* klass, |
| 2233 | size_t hash) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2234 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2235 | mirror::DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2236 | std::string source; |
| 2237 | if (dex_cache != NULL) { |
| 2238 | source += " from "; |
| 2239 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 2240 | } |
| 2241 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 2242 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2243 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 2244 | mirror::Class* existing = |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2245 | LookupClassFromTableLocked(descriptor, klass->GetClassLoader(), hash); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2246 | if (existing != NULL) { |
| 2247 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2248 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2249 | if (kIsDebugBuild && klass->GetClassLoader() == NULL && dex_cache_image_class_lookup_required_) { |
| 2250 | // Check a class loaded with the system class loader matches one in the image if the class |
| 2251 | // is in the image. |
| 2252 | existing = LookupClassFromImage(descriptor); |
| 2253 | if (existing != NULL) { |
| 2254 | CHECK(klass == existing); |
| 2255 | } |
| 2256 | } |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 2257 | Runtime::Current()->GetHeap()->VerifyObject(klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2258 | class_table_.insert(std::make_pair(hash, klass)); |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 2259 | class_table_dirty_ = true; |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2260 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2261 | } |
| 2262 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2263 | bool ClassLinker::RemoveClass(const char* descriptor, const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2264 | size_t hash = Hash(descriptor); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2265 | WriterMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2266 | 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] | 2267 | ++it) { |
| 2268 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2269 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2270 | if ((klass->GetClassLoader() == class_loader) && |
| 2271 | (strcmp(descriptor, kh.GetDescriptor()) == 0)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2272 | class_table_.erase(it); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2273 | return true; |
| 2274 | } |
| 2275 | } |
| 2276 | return false; |
| 2277 | } |
| 2278 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2279 | mirror::Class* ClassLinker::LookupClass(const char* descriptor, |
| 2280 | const mirror::ClassLoader* class_loader) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 2281 | size_t hash = Hash(descriptor); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2282 | { |
| 2283 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
| 2284 | mirror::Class* result = LookupClassFromTableLocked(descriptor, class_loader, hash); |
| 2285 | if (result != NULL) { |
| 2286 | return result; |
| 2287 | } |
Sameer Abu Asal | 2c6de22 | 2013-05-02 17:38:59 -0700 | [diff] [blame] | 2288 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2289 | if (class_loader != NULL || !dex_cache_image_class_lookup_required_) { |
| 2290 | return NULL; |
| 2291 | } else { |
| 2292 | // Lookup failed but need to search dex_caches_. |
| 2293 | mirror::Class* result = LookupClassFromImage(descriptor); |
| 2294 | if (result != NULL) { |
| 2295 | InsertClass(descriptor, result, hash); |
| 2296 | } else { |
| 2297 | // Searching the image dex files/caches failed, we don't want to get into this situation |
| 2298 | // often as map searches are faster, so after kMaxFailedDexCacheLookups move all image |
| 2299 | // classes into the class table. |
| 2300 | const int32_t kMaxFailedDexCacheLookups = 1000; |
| 2301 | if (++failed_dex_cache_class_lookups_ > kMaxFailedDexCacheLookups) { |
| 2302 | MoveImageClassesToClassTable(); |
| 2303 | } |
| 2304 | } |
| 2305 | return result; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2306 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2307 | } |
| 2308 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2309 | mirror::Class* ClassLinker::LookupClassFromTableLocked(const char* descriptor, |
| 2310 | const mirror::ClassLoader* class_loader, |
| 2311 | size_t hash) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2312 | auto end = class_table_.end(); |
| 2313 | 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] | 2314 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2315 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2316 | if ((klass->GetClassLoader() == class_loader) && |
| 2317 | (strcmp(descriptor, kh.GetDescriptor()) == 0)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2318 | if (kIsDebugBuild) { |
| 2319 | // Check for duplicates in the table. |
| 2320 | for (++it; it != end && it->first == hash; ++it) { |
| 2321 | mirror::Class* klass2 = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2322 | ClassHelper kh(klass2); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2323 | CHECK(!((klass2->GetClassLoader() == class_loader) && |
| 2324 | (strcmp(descriptor, kh.GetDescriptor()) == 0))) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2325 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
| 2326 | << PrettyClass(klass2) << " " << klass2 << " " << klass2->GetClassLoader(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2327 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 2328 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 2329 | return klass; |
| 2330 | } |
| 2331 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2332 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2333 | } |
| 2334 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2335 | static mirror::ObjectArray<mirror::DexCache>* GetImageDexCaches() |
| 2336 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2337 | gc::space::ImageSpace* image = Runtime::Current()->GetHeap()->GetImageSpace(); |
| 2338 | CHECK(image != NULL); |
| 2339 | mirror::Object* root = image->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 2340 | return root->AsObjectArray<mirror::DexCache>(); |
| 2341 | } |
| 2342 | |
| 2343 | void ClassLinker::MoveImageClassesToClassTable() { |
| 2344 | Thread* self = Thread::Current(); |
| 2345 | WriterMutexLock mu(self, *Locks::classlinker_classes_lock_); |
| 2346 | if (!dex_cache_image_class_lookup_required_) { |
| 2347 | return; // All dex cache classes are already in the class table. |
| 2348 | } |
| 2349 | const char* old_no_suspend_cause = |
| 2350 | self->StartAssertNoThreadSuspension("Moving image classes to class table"); |
| 2351 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2352 | for (int32_t i = 0; i < dex_caches->GetLength(); i++) { |
| 2353 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2354 | mirror::ObjectArray<mirror::Class>* types = dex_cache->GetResolvedTypes(); |
| 2355 | for (int32_t j = 0; j < types->GetLength(); j++) { |
| 2356 | mirror::Class* klass = types->Get(j); |
| 2357 | if (klass != NULL) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2358 | ClassHelper kh(klass); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2359 | DCHECK(klass->GetClassLoader() == NULL); |
| 2360 | const char* descriptor = kh.GetDescriptor(); |
| 2361 | size_t hash = Hash(descriptor); |
| 2362 | mirror::Class* existing = LookupClassFromTableLocked(descriptor, NULL, hash); |
| 2363 | if (existing != NULL) { |
| 2364 | CHECK(existing == klass) << PrettyClassAndClassLoader(existing) << " != " |
| 2365 | << PrettyClassAndClassLoader(klass); |
| 2366 | } else { |
| 2367 | class_table_.insert(std::make_pair(hash, klass)); |
| 2368 | } |
| 2369 | } |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2370 | } |
| 2371 | } |
Mathieu Chartier | c462198 | 2013-09-16 19:43:47 -0700 | [diff] [blame] | 2372 | class_table_dirty_ = true; |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2373 | dex_cache_image_class_lookup_required_ = false; |
| 2374 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2375 | } |
| 2376 | |
| 2377 | mirror::Class* ClassLinker::LookupClassFromImage(const char* descriptor) { |
| 2378 | Thread* self = Thread::Current(); |
| 2379 | const char* old_no_suspend_cause = |
| 2380 | self->StartAssertNoThreadSuspension("Image class lookup"); |
| 2381 | mirror::ObjectArray<mirror::DexCache>* dex_caches = GetImageDexCaches(); |
| 2382 | for (int32_t i = 0; i < dex_caches->GetLength(); ++i) { |
| 2383 | mirror::DexCache* dex_cache = dex_caches->Get(i); |
| 2384 | const DexFile* dex_file = dex_cache->GetDexFile(); |
| 2385 | // First search using the class def map, but don't bother for non-class types. |
| 2386 | if (descriptor[0] == 'L') { |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2387 | const DexFile::StringId* descriptor_string_id = dex_file->FindStringId(descriptor); |
| 2388 | if (descriptor_string_id != NULL) { |
| 2389 | const DexFile::TypeId* type_id = |
| 2390 | dex_file->FindTypeId(dex_file->GetIndexForStringId(*descriptor_string_id)); |
| 2391 | if (type_id != NULL) { |
| 2392 | mirror::Class* klass = dex_cache->GetResolvedType(dex_file->GetIndexForTypeId(*type_id)); |
| 2393 | if (klass != NULL) { |
| 2394 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2395 | return klass; |
| 2396 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2397 | } |
| 2398 | } |
| 2399 | } |
| 2400 | // Now try binary searching the string/type index. |
| 2401 | const DexFile::StringId* string_id = dex_file->FindStringId(descriptor); |
| 2402 | if (string_id != NULL) { |
| 2403 | const DexFile::TypeId* type_id = |
| 2404 | dex_file->FindTypeId(dex_file->GetIndexForStringId(*string_id)); |
| 2405 | if (type_id != NULL) { |
| 2406 | uint16_t type_idx = dex_file->GetIndexForTypeId(*type_id); |
| 2407 | mirror::Class* klass = dex_cache->GetResolvedType(type_idx); |
| 2408 | if (klass != NULL) { |
| 2409 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2410 | return klass; |
| 2411 | } |
| 2412 | } |
| 2413 | } |
| 2414 | } |
| 2415 | self->EndAssertNoThreadSuspension(old_no_suspend_cause); |
| 2416 | return NULL; |
| 2417 | } |
| 2418 | |
| 2419 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<mirror::Class*>& result) { |
| 2420 | result.clear(); |
| 2421 | if (dex_cache_image_class_lookup_required_) { |
| 2422 | MoveImageClassesToClassTable(); |
| 2423 | } |
| 2424 | size_t hash = Hash(descriptor); |
| 2425 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2426 | for (auto it = class_table_.lower_bound(hash), end = class_table_.end(); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 2427 | it != end && it->first == hash; ++it) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2428 | mirror::Class* klass = it->second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2429 | ClassHelper kh(klass); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 2430 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2431 | result.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 2432 | } |
| 2433 | } |
| 2434 | } |
| 2435 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2436 | void ClassLinker::VerifyClass(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2437 | // TODO: assert that the monitor on the Class is held |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2438 | Thread* self = Thread::Current(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2439 | ObjectLock<mirror::Class> lock(self, &klass); |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 2440 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2441 | // Don't attempt to re-verify if already sufficiently verified. |
| 2442 | if (klass->IsVerified() || |
| 2443 | (klass->IsCompileTimeVerified() && Runtime::Current()->IsCompiler())) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2444 | return; |
| 2445 | } |
| 2446 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2447 | // The class might already be erroneous, for example at compile time if we attempted to verify |
| 2448 | // this class as a parent to another. |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2449 | if (klass->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2450 | ThrowEarlierClassFailure(klass.get()); |
Brian Carlstrom | 9b5ee88 | 2012-02-28 09:48:54 -0800 | [diff] [blame] | 2451 | return; |
| 2452 | } |
| 2453 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2454 | if (klass->GetStatus() == mirror::Class::kStatusResolved) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2455 | klass->SetStatus(mirror::Class::kStatusVerifying, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2456 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2457 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime) |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2458 | << PrettyClass(klass.get()); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2459 | CHECK(!Runtime::Current()->IsCompiler()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2460 | klass->SetStatus(mirror::Class::kStatusVerifyingAtRuntime, self); |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2461 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2462 | |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2463 | // Verify super class. |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2464 | SirtRef<mirror::Class> super(self, klass->GetSuperClass()); |
| 2465 | if (super.get() != NULL) { |
Ian Rogers | 9ffb039 | 2012-09-10 11:56:50 -0700 | [diff] [blame] | 2466 | // Acquire lock to prevent races on verifying the super class. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2467 | ObjectLock<mirror::Class> lock(self, &super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2468 | |
| 2469 | if (!super->IsVerified() && !super->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2470 | VerifyClass(super); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2471 | } |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2472 | if (!super->IsCompileTimeVerified()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2473 | 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^] | 2474 | PrettyDescriptor(klass.get()).c_str(), |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2475 | PrettyDescriptor(super.get()).c_str())); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2476 | LOG(ERROR) << error_msg << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2477 | SirtRef<mirror::Throwable> cause(self, self->GetException(NULL)); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2478 | if (cause.get() != nullptr) { |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2479 | self->ClearException(); |
| 2480 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2481 | ThrowVerifyError(klass.get(), "%s", error_msg.c_str()); |
| 2482 | if (cause.get() != nullptr) { |
| 2483 | self->GetException(nullptr)->SetCause(cause.get()); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2484 | } |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2485 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2486 | return; |
| 2487 | } |
| 2488 | } |
| 2489 | |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2490 | // 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] | 2491 | const DexFile& dex_file = *klass->GetDexCache()->GetDexFile(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2492 | mirror::Class::Status oat_file_class_status(mirror::Class::kStatusNotReady); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2493 | bool preverified = VerifyClassUsingOatFile(dex_file, klass.get(), oat_file_class_status); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2494 | if (oat_file_class_status == mirror::Class::kStatusError) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2495 | VLOG(class_linker) << "Skipping runtime verification of erroneous class " |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2496 | << PrettyDescriptor(klass.get()) << " in " |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2497 | << klass->GetDexCache()->GetLocation()->ToModifiedUtf8(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2498 | ThrowVerifyError(klass.get(), "Rejecting class %s because it failed compile-time verification", |
| 2499 | PrettyDescriptor(klass.get()).c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2500 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | ec01423 | 2012-09-05 10:42:25 -0700 | [diff] [blame] | 2501 | return; |
| 2502 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2503 | verifier::MethodVerifier::FailureKind verifier_failure = verifier::MethodVerifier::kNoFailure; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2504 | std::string error_msg; |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2505 | if (!preverified) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2506 | verifier_failure = verifier::MethodVerifier::VerifyClass(klass.get(), |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2507 | Runtime::Current()->IsCompiler(), |
| 2508 | &error_msg); |
jeffhao | f1e6b7c | 2012-06-05 18:33:30 -0700 | [diff] [blame] | 2509 | } |
| 2510 | if (preverified || verifier_failure != verifier::MethodVerifier::kHardFailure) { |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2511 | if (!preverified && verifier_failure != verifier::MethodVerifier::kNoFailure) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2512 | VLOG(class_linker) << "Soft verification failure in class " << PrettyDescriptor(klass.get()) |
Ian Rogers | 529781d | 2012-07-23 17:24:29 -0700 | [diff] [blame] | 2513 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2514 | << " because: " << error_msg; |
| 2515 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2516 | self->AssertNoPendingException(); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2517 | // Make sure all classes referenced by catch blocks are resolved. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2518 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2519 | if (verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2520 | // Even though there were no verifier failures we need to respect whether the super-class |
| 2521 | // was verified or requiring runtime reverification. |
| 2522 | if (super.get() == NULL || super->IsVerified()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2523 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2524 | } else { |
| 2525 | CHECK_EQ(super->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2526 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2527 | // Pretend a soft failure occured so that we don't consider the class verified below. |
| 2528 | verifier_failure = verifier::MethodVerifier::kSoftFailure; |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2529 | } |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2530 | } else { |
| 2531 | CHECK_EQ(verifier_failure, verifier::MethodVerifier::kSoftFailure); |
| 2532 | // Soft failures at compile time should be retried at runtime. Soft |
| 2533 | // failures at runtime will be handled by slow paths in the generated |
| 2534 | // code. Set status accordingly. |
| 2535 | if (Runtime::Current()->IsCompiler()) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2536 | klass->SetStatus(mirror::Class::kStatusRetryVerificationAtRuntime, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2537 | } else { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2538 | klass->SetStatus(mirror::Class::kStatusVerified, self); |
jeffhao | e4f0b2a | 2012-08-30 11:18:57 -0700 | [diff] [blame] | 2539 | } |
| 2540 | } |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2541 | } else { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2542 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(klass.get()) |
Ian Rogers | 1c5eb70 | 2012-02-01 09:18:34 -0800 | [diff] [blame] | 2543 | << " in " << klass->GetDexCache()->GetLocation()->ToModifiedUtf8() |
| 2544 | << " because: " << error_msg; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2545 | self->AssertNoPendingException(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2546 | ThrowVerifyError(klass.get(), "%s", error_msg.c_str()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2547 | klass->SetStatus(mirror::Class::kStatusError, self); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 2548 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 2549 | if (preverified || verifier_failure == verifier::MethodVerifier::kNoFailure) { |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 2550 | // 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] | 2551 | // Let the interpreter know it by setting the kAccPreverified flag onto each |
| 2552 | // method. |
| 2553 | // Note: we're going here during compilation and at runtime. When we set the |
| 2554 | // kAccPreverified flag when compiling image classes, the flag is recorded |
| 2555 | // in the image and is set when loading the image. |
| 2556 | klass->SetPreverifiedFlagOnAllMethods(); |
| 2557 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2558 | } |
| 2559 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2560 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, mirror::Class* klass, |
| 2561 | mirror::Class::Status& oat_file_class_status) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2562 | // If we're compiling, we can only verify the class using the oat file if |
| 2563 | // we are not compiling the image or if the class we're verifying is not part of |
| 2564 | // the app. In other words, we will only check for preverification of bootclasspath |
| 2565 | // classes. |
| 2566 | if (Runtime::Current()->IsCompiler()) { |
| 2567 | // Are we compiling the bootclasspath? |
| 2568 | if (!Runtime::Current()->UseCompileTimeClassPath()) { |
| 2569 | return false; |
| 2570 | } |
| 2571 | // We are compiling an app (not the image). |
| 2572 | |
| 2573 | // Is this an app class? (I.e. not a bootclasspath class) |
| 2574 | if (klass->GetClassLoader() != NULL) { |
| 2575 | return false; |
| 2576 | } |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2577 | } |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2578 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2579 | const OatFile* oat_file = FindOpenedOatFileForDexFile(dex_file); |
Anwar Ghuloum | ad256bb | 2013-07-18 14:58:55 -0700 | [diff] [blame] | 2580 | // Make this work with gtests, which do not set up the image properly. |
| 2581 | // TODO: we should clean up gtests to set up the image path properly. |
| 2582 | if (Runtime::Current()->IsCompiler() && (oat_file == NULL)) { |
| 2583 | return false; |
| 2584 | } |
| 2585 | |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2586 | CHECK(oat_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Brian Carlstrom | 756ee4e | 2013-10-03 15:46:12 -0700 | [diff] [blame] | 2587 | uint dex_location_checksum = dex_file.GetLocationChecksum(); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 2588 | 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] | 2589 | &dex_location_checksum); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2590 | CHECK(oat_dex_file != NULL) << dex_file.GetLocation() << " " << PrettyClass(klass); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2591 | uint16_t class_def_index = klass->GetDexClassDefIndex(); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2592 | 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] | 2593 | CHECK(oat_class.get() != NULL) |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2594 | << dex_file.GetLocation() << " " << PrettyClass(klass) << " " |
| 2595 | << ClassHelper(klass).GetDescriptor(); |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2596 | oat_file_class_status = oat_class->GetStatus(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2597 | if (oat_file_class_status == mirror::Class::kStatusVerified || |
| 2598 | oat_file_class_status == mirror::Class::kStatusInitialized) { |
Anwar Ghuloum | 044d283 | 2013-07-17 15:22:31 -0700 | [diff] [blame] | 2599 | return true; |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2600 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2601 | if (oat_file_class_status == mirror::Class::kStatusRetryVerificationAtRuntime) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2602 | // Compile time verification failed with a soft error. Compile time verification can fail |
| 2603 | // because we have incomplete type information. Consider the following: |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2604 | // class ... { |
| 2605 | // Foo x; |
| 2606 | // .... () { |
| 2607 | // if (...) { |
| 2608 | // v1 gets assigned a type of resolved class Foo |
| 2609 | // } else { |
| 2610 | // v1 gets assigned a type of unresolved class Bar |
| 2611 | // } |
| 2612 | // iput x = v1 |
| 2613 | // } } |
| 2614 | // when we merge v1 following the if-the-else it results in Conflict |
| 2615 | // (see verifier::RegType::Merge) as we can't know the type of Bar and we could possibly be |
| 2616 | // allowing an unsafe assignment to the field x in the iput (javac may have compiled this as |
| 2617 | // it knew Bar was a sub-class of Foo, but for us this may have been moved into a separate apk |
| 2618 | // at compile time). |
| 2619 | return false; |
| 2620 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2621 | if (oat_file_class_status == mirror::Class::kStatusError) { |
jeffhao | 1ac2944 | 2012-03-26 11:37:32 -0700 | [diff] [blame] | 2622 | // Compile time verification failed with a hard error. This is caused by invalid instructions |
| 2623 | // in the class. These errors are unrecoverable. |
| 2624 | return false; |
| 2625 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2626 | if (oat_file_class_status == mirror::Class::kStatusNotReady) { |
Ian Rogers | c476227 | 2012-02-01 15:55:55 -0800 | [diff] [blame] | 2627 | // Status is uninitialized if we couldn't determine the status at compile time, for example, |
| 2628 | // not loading the class. |
| 2629 | // TODO: when the verifier doesn't rely on Class-es failing to resolve/load the type hierarchy |
| 2630 | // isn't a problem and this case shouldn't occur |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2631 | return false; |
| 2632 | } |
Elliott Hughes | 634eb2e | 2012-03-22 16:06:28 -0700 | [diff] [blame] | 2633 | LOG(FATAL) << "Unexpected class status: " << oat_file_class_status |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2634 | << " " << dex_file.GetLocation() << " " << PrettyClass(klass) << " " |
| 2635 | << ClassHelper(klass).GetDescriptor(); |
Brian Carlstrom | 5b332c8 | 2012-02-01 15:02:31 -0800 | [diff] [blame] | 2636 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2637 | return false; |
| 2638 | } |
| 2639 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2640 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, |
| 2641 | const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2642 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 2643 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 2644 | } |
| 2645 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 2646 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 2647 | } |
| 2648 | } |
| 2649 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2650 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2651 | mirror::ArtMethod* method) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2652 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 2653 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 2654 | if (code_item == NULL) { |
| 2655 | return; // native or abstract method |
| 2656 | } |
| 2657 | if (code_item->tries_size_ == 0) { |
| 2658 | return; // nothing to process |
| 2659 | } |
| 2660 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 2661 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 2662 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 2663 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 2664 | CatchHandlerIterator iterator(handlers_ptr); |
| 2665 | for (; iterator.HasNext(); iterator.Next()) { |
| 2666 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 2667 | // unresolved exception types will be ignored by exception delivery |
| 2668 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2669 | mirror::Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2670 | if (exception_type == NULL) { |
| 2671 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2672 | Thread::Current()->ClearException(); |
| 2673 | } |
| 2674 | } |
| 2675 | } |
| 2676 | handlers_ptr = iterator.EndDataPointer(); |
| 2677 | } |
| 2678 | } |
| 2679 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2680 | static void CheckProxyConstructor(mirror::ArtMethod* constructor); |
| 2681 | static void CheckProxyMethod(mirror::ArtMethod* method, |
| 2682 | SirtRef<mirror::ArtMethod>& prototype); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2683 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2684 | mirror::Class* ClassLinker::CreateProxyClass(ScopedObjectAccess& soa, jstring name, |
| 2685 | jobjectArray interfaces, jobject loader, |
| 2686 | jobjectArray methods, jobjectArray throws) { |
| 2687 | Thread* self = soa.Self(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2688 | SirtRef<mirror::Class> klass(self, AllocClass(self, GetClassRoot(kJavaLangClass), |
| 2689 | sizeof(mirror::SynthesizedProxyClass))); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2690 | if (klass.get() == NULL) { |
| 2691 | CHECK(self->IsExceptionPending()); // OOME. |
| 2692 | return NULL; |
| 2693 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2694 | DCHECK(klass->GetClass() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2695 | klass->SetObjectSize(sizeof(mirror::Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2696 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2697 | klass->SetClassLoader(soa.Decode<mirror::ClassLoader*>(loader)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2698 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2699 | klass->SetName(soa.Decode<mirror::String*>(name)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2700 | mirror::Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2701 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2702 | klass->SetStatus(mirror::Class::kStatusIdx, self); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2703 | |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2704 | // Instance fields are inherited, but we add a couple of static fields... |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2705 | { |
| 2706 | mirror::ObjectArray<mirror::ArtField>* sfields = AllocArtFieldArray(self, 2); |
| 2707 | if (UNLIKELY(sfields == NULL)) { |
| 2708 | CHECK(self->IsExceptionPending()); // OOME. |
| 2709 | return NULL; |
| 2710 | } |
| 2711 | klass->SetSFields(sfields); |
| 2712 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2713 | // 1. Create a static field 'interfaces' that holds the _declared_ interfaces implemented by |
| 2714 | // our proxy, so Class.getInterfaces doesn't return the flattened set. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2715 | SirtRef<mirror::ArtField> interfaces_sfield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2716 | if (UNLIKELY(interfaces_sfield.get() == NULL)) { |
| 2717 | CHECK(self->IsExceptionPending()); // OOME. |
| 2718 | return NULL; |
| 2719 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2720 | klass->SetStaticField(0, interfaces_sfield.get()); |
| 2721 | interfaces_sfield->SetDexFieldIndex(0); |
| 2722 | interfaces_sfield->SetDeclaringClass(klass.get()); |
| 2723 | interfaces_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
| 2724 | // 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] | 2725 | SirtRef<mirror::ArtField> throws_sfield(self, AllocArtField(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2726 | if (UNLIKELY(throws_sfield.get() == NULL)) { |
| 2727 | CHECK(self->IsExceptionPending()); // OOME. |
| 2728 | return NULL; |
| 2729 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2730 | klass->SetStaticField(1, throws_sfield.get()); |
| 2731 | throws_sfield->SetDexFieldIndex(1); |
| 2732 | throws_sfield->SetDeclaringClass(klass.get()); |
| 2733 | throws_sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2734 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2735 | // Proxies have 1 direct method, the constructor |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2736 | { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2737 | mirror::ObjectArray<mirror::ArtMethod>* directs = AllocArtMethodArray(self, 1); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2738 | if (UNLIKELY(directs == NULL)) { |
| 2739 | CHECK(self->IsExceptionPending()); // OOME. |
| 2740 | return NULL; |
| 2741 | } |
| 2742 | klass->SetDirectMethods(directs); |
| 2743 | mirror::ArtMethod* constructor = CreateProxyConstructor(self, klass, proxy_class); |
| 2744 | if (UNLIKELY(constructor == NULL)) { |
| 2745 | CHECK(self->IsExceptionPending()); // OOME. |
| 2746 | return NULL; |
| 2747 | } |
| 2748 | klass->SetDirectMethod(0, constructor); |
| 2749 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2750 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2751 | // Create virtual method using specified prototypes. |
| 2752 | size_t num_virtual_methods = |
| 2753 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods)->GetLength(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2754 | { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2755 | mirror::ObjectArray<mirror::ArtMethod>* virtuals = AllocArtMethodArray(self, num_virtual_methods); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2756 | if (UNLIKELY(virtuals == NULL)) { |
| 2757 | CHECK(self->IsExceptionPending()); // OOME. |
| 2758 | return NULL; |
| 2759 | } |
| 2760 | klass->SetVirtualMethods(virtuals); |
| 2761 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2762 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2763 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 2764 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
| 2765 | SirtRef<mirror::ArtMethod> prototype(self, decoded_methods->Get(i)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2766 | mirror::ArtMethod* clone = CreateProxyMethod(self, klass, prototype); |
| 2767 | if (UNLIKELY(clone == NULL)) { |
| 2768 | CHECK(self->IsExceptionPending()); // OOME. |
| 2769 | return NULL; |
| 2770 | } |
| 2771 | klass->SetVirtualMethod(i, clone); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2772 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2773 | |
| 2774 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2775 | 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] | 2776 | self->AssertNoPendingException(); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2777 | |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2778 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2779 | 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] | 2780 | // Link the fields and virtual methods, creating vtable and iftables |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2781 | SirtRef<mirror::ObjectArray<mirror::Class> > sirt_interfaces( |
| 2782 | self, soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2783 | if (!LinkClass(self, klass, sirt_interfaces)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2784 | klass->SetStatus(mirror::Class::kStatusError, self); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2785 | return nullptr; |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 2786 | } |
| 2787 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2788 | interfaces_sfield->SetObject(klass.get(), soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2789 | 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] | 2790 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | c898258 | 2012-09-07 16:53:25 -0700 | [diff] [blame] | 2791 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2792 | |
| 2793 | // sanity checks |
Elliott Hughes | 67d9200 | 2012-03-26 15:08:51 -0700 | [diff] [blame] | 2794 | if (kIsDebugBuild) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2795 | CHECK(klass->GetIFields() == NULL); |
| 2796 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2797 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2798 | mirror::ObjectArray<mirror::ArtMethod>* decoded_methods = |
| 2799 | soa.Decode<mirror::ObjectArray<mirror::ArtMethod>*>(methods); |
| 2800 | SirtRef<mirror::ArtMethod> prototype(self, decoded_methods->Get(i)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2801 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2802 | } |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2803 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2804 | mirror::String* decoded_name = soa.Decode<mirror::String*>(name); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2805 | std::string interfaces_field_name(StringPrintf("java.lang.Class[] %s.interfaces", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2806 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2807 | CHECK_EQ(PrettyField(klass->GetStaticField(0)), interfaces_field_name); |
| 2808 | |
| 2809 | std::string throws_field_name(StringPrintf("java.lang.Class[][] %s.throws", |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2810 | decoded_name->ToModifiedUtf8().c_str())); |
Elliott Hughes | 2ed52c4 | 2012-03-21 16:56:56 -0700 | [diff] [blame] | 2811 | CHECK_EQ(PrettyField(klass->GetStaticField(1)), throws_field_name); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2812 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2813 | mirror::SynthesizedProxyClass* synth_proxy_class = |
| 2814 | down_cast<mirror::SynthesizedProxyClass*>(klass.get()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2815 | CHECK_EQ(synth_proxy_class->GetInterfaces(), soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)); |
| 2816 | 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] | 2817 | } |
Mathieu Chartier | 31b9d66 | 2013-10-14 11:53:12 -0700 | [diff] [blame] | 2818 | std::string descriptor(GetDescriptorForProxy(klass.get())); |
| 2819 | mirror::Class* existing = InsertClass(descriptor.c_str(), klass.get(), Hash(descriptor.c_str())); |
| 2820 | CHECK(existing == nullptr); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2821 | return klass.get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2822 | } |
| 2823 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2824 | std::string ClassLinker::GetDescriptorForProxy(const mirror::Class* proxy_class) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2825 | DCHECK(proxy_class->IsProxyClass()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2826 | mirror::String* name = proxy_class->GetName(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2827 | DCHECK(name != NULL); |
| 2828 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2829 | } |
| 2830 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2831 | mirror::ArtMethod* ClassLinker::FindMethodForProxy(const mirror::Class* proxy_class, |
| 2832 | const mirror::ArtMethod* proxy_method) { |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2833 | DCHECK(proxy_class->IsProxyClass()); |
| 2834 | DCHECK(proxy_method->IsProxyMethod()); |
| 2835 | // Locate the dex cache of the original interface/Object |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2836 | mirror::DexCache* dex_cache = NULL; |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2837 | { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2838 | mirror::ObjectArray<mirror::Class>* resolved_types = proxy_method->GetDexCacheResolvedTypes(); |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 2839 | ReaderMutexLock mu(Thread::Current(), dex_lock_); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2840 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 2841 | if (dex_caches_[i]->GetResolvedTypes() == resolved_types) { |
| 2842 | dex_cache = dex_caches_[i]; |
| 2843 | break; |
| 2844 | } |
| 2845 | } |
| 2846 | } |
| 2847 | CHECK(dex_cache != NULL); |
| 2848 | uint32_t method_idx = proxy_method->GetDexMethodIndex(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2849 | mirror::ArtMethod* resolved_method = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2850 | CHECK(resolved_method != NULL); |
| 2851 | return resolved_method; |
| 2852 | } |
| 2853 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2854 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2855 | mirror::ArtMethod* ClassLinker::CreateProxyConstructor(Thread* self, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2856 | const SirtRef<mirror::Class>& klass, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2857 | mirror::Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2858 | // Create constructor for Proxy that must initialize h |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2859 | mirror::ObjectArray<mirror::ArtMethod>* proxy_direct_methods = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2860 | proxy_class->GetDirectMethods(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2861 | CHECK_EQ(proxy_direct_methods->GetLength(), 16); |
| 2862 | mirror::ArtMethod* proxy_constructor = proxy_direct_methods->Get(2); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2863 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2864 | // code_ too) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2865 | mirror::ArtMethod* constructor = |
| 2866 | down_cast<mirror::ArtMethod*>(proxy_constructor->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2867 | if (constructor == NULL) { |
| 2868 | CHECK(self->IsExceptionPending()); // OOME. |
| 2869 | return NULL; |
| 2870 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2871 | // Make this constructor public and fix the class to be our Proxy version |
| 2872 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2873 | constructor->SetDeclaringClass(klass.get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2874 | return constructor; |
| 2875 | } |
| 2876 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2877 | static void CheckProxyConstructor(mirror::ArtMethod* constructor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2878 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2879 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2880 | MethodHelper mh(constructor); |
| 2881 | CHECK_STREQ(mh.GetName(), "<init>"); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 2882 | CHECK_STREQ(mh.GetSignature().ToString().c_str(), "(Ljava/lang/reflect/InvocationHandler;)V"); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2883 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2884 | } |
| 2885 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2886 | mirror::ArtMethod* ClassLinker::CreateProxyMethod(Thread* self, |
| 2887 | const SirtRef<mirror::Class>& klass, |
| 2888 | const SirtRef<mirror::ArtMethod>& prototype) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2889 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 2890 | // prototype method |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2891 | prototype->GetDeclaringClass()->GetDexCache()->SetResolvedMethod(prototype->GetDexMethodIndex(), |
| 2892 | prototype.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2893 | // 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] | 2894 | // as necessary |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2895 | mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(prototype->Clone(self)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 2896 | if (UNLIKELY(method == NULL)) { |
| 2897 | CHECK(self->IsExceptionPending()); // OOME. |
| 2898 | return NULL; |
| 2899 | } |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2900 | |
| 2901 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 2902 | // the intersection of throw exceptions as defined in Proxy |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2903 | method->SetDeclaringClass(klass.get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2904 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2905 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2906 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 2907 | // related parameters from this method. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2908 | mirror::ArtMethod* refs_and_args = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2909 | Runtime::Current()->GetCalleeSaveMethod(Runtime::kRefsAndArgs); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2910 | method->SetCoreSpillMask(refs_and_args->GetCoreSpillMask()); |
| 2911 | method->SetFpSpillMask(refs_and_args->GetFpSpillMask()); |
| 2912 | method->SetFrameSizeInBytes(refs_and_args->GetFrameSizeInBytes()); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 2913 | method->SetEntryPointFromCompiledCode(GetProxyInvokeHandler()); |
Dragos Sbirlea | 08bf196 | 2013-08-12 08:53:04 -0700 | [diff] [blame] | 2914 | method->SetEntryPointFromInterpreter(artInterpreterToCompiledCodeBridge); |
Ian Rogers | 16f9367 | 2012-02-14 12:29:06 -0800 | [diff] [blame] | 2915 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2916 | return method; |
| 2917 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2918 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2919 | static void CheckProxyMethod(mirror::ArtMethod* method, |
| 2920 | SirtRef<mirror::ArtMethod>& prototype) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2921 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2922 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2923 | CHECK(!prototype->IsFinal()); |
| 2924 | CHECK(method->IsFinal()); |
| 2925 | CHECK(!method->IsAbstract()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2926 | |
| 2927 | // The proxy method doesn't have its own dex cache or dex file and so it steals those of its |
| 2928 | // interface prototype. The exception to this are Constructors and the Class of the Proxy itself. |
| 2929 | CHECK_EQ(prototype->GetDexCacheStrings(), method->GetDexCacheStrings()); |
| 2930 | CHECK_EQ(prototype->GetDexCacheResolvedMethods(), method->GetDexCacheResolvedMethods()); |
| 2931 | CHECK_EQ(prototype->GetDexCacheResolvedTypes(), method->GetDexCacheResolvedTypes()); |
| 2932 | CHECK_EQ(prototype->GetDexCacheInitializedStaticStorage(), |
| 2933 | method->GetDexCacheInitializedStaticStorage()); |
| 2934 | CHECK_EQ(prototype->GetDexMethodIndex(), method->GetDexMethodIndex()); |
| 2935 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2936 | MethodHelper mh(method); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2937 | MethodHelper mh2(prototype.get()); |
| 2938 | CHECK_STREQ(mh.GetName(), mh2.GetName()); |
| 2939 | CHECK_STREQ(mh.GetShorty(), mh2.GetShorty()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2940 | // More complex sanity - via dex cache |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 2941 | CHECK_EQ(mh.GetReturnType(), mh2.GetReturnType()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2942 | } |
| 2943 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2944 | static bool CanWeInitializeClass(mirror::Class* klass, bool can_init_statics, |
| 2945 | bool can_init_parents) |
| 2946 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 2947 | if (can_init_statics && can_init_parents) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2948 | return true; |
| 2949 | } |
| 2950 | if (!can_init_statics) { |
| 2951 | // Check if there's a class initializer. |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 2952 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2953 | if (clinit != NULL) { |
| 2954 | return false; |
| 2955 | } |
| 2956 | // Check if there are encoded static values needing initialization. |
| 2957 | if (klass->NumStaticFields() != 0) { |
| 2958 | ClassHelper kh(klass); |
| 2959 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 2960 | DCHECK(dex_class_def != NULL); |
| 2961 | if (dex_class_def->static_values_off_ != 0) { |
| 2962 | return false; |
| 2963 | } |
| 2964 | } |
| 2965 | } |
| 2966 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 2967 | mirror::Class* super_class = klass->GetSuperClass(); |
| 2968 | if (!can_init_parents && !super_class->IsInitialized()) { |
| 2969 | return false; |
| 2970 | } else { |
Brian Carlstrom | 610e49f | 2013-11-04 17:07:22 -0800 | [diff] [blame] | 2971 | if (!CanWeInitializeClass(super_class, can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2972 | return false; |
| 2973 | } |
| 2974 | } |
| 2975 | } |
| 2976 | return true; |
| 2977 | } |
| 2978 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2979 | bool ClassLinker::IsInitialized() const { |
| 2980 | return init_done_; |
| 2981 | } |
| 2982 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 2983 | bool ClassLinker::InitializeClass(const SirtRef<mirror::Class>& klass, bool can_init_statics, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2984 | bool can_init_parents) { |
| 2985 | // see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol |
| 2986 | |
| 2987 | // Are we already initialized and therefore done? |
| 2988 | // Note: we differ from the JLS here as we don't do this under the lock, this is benign as |
| 2989 | // an initialized class will never change its state. |
| 2990 | if (klass->IsInitialized()) { |
| 2991 | return true; |
| 2992 | } |
| 2993 | |
| 2994 | // 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^] | 2995 | if (!CanWeInitializeClass(klass.get(), can_init_statics, can_init_parents)) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2996 | return false; |
| 2997 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2998 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2999 | Thread* self = Thread::Current(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3000 | uint64_t t0; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3001 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3002 | ObjectLock<mirror::Class> lock(self, &klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3003 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3004 | // Re-check under the lock in case another thread initialized ahead of us. |
| 3005 | if (klass->IsInitialized()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3006 | return true; |
| 3007 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3008 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3009 | // 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] | 3010 | if (klass->IsErroneous()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3011 | ThrowEarlierClassFailure(klass.get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3012 | return false; |
| 3013 | } |
| 3014 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3015 | CHECK(klass->IsResolved()) << PrettyClass(klass.get()) << ": state=" << klass->GetStatus(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3016 | |
| 3017 | if (!klass->IsVerified()) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 3018 | VerifyClass(klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3019 | if (!klass->IsVerified()) { |
| 3020 | // We failed to verify, expect either the klass to be erroneous or verification failed at |
| 3021 | // compile time. |
| 3022 | if (klass->IsErroneous()) { |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3023 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3024 | } else { |
| 3025 | CHECK(Runtime::Current()->IsCompiler()); |
| 3026 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
jeffhao | a9b3bf4 | 2012-06-06 17:18:39 -0700 | [diff] [blame] | 3027 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3028 | return false; |
| 3029 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3030 | } |
| 3031 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3032 | // If the class is kStatusInitializing, either this thread is |
| 3033 | // initializing higher up the stack or another thread has beat us |
| 3034 | // to initializing and we need to wait. Either way, this |
| 3035 | // invocation of InitializeClass will not be responsible for |
| 3036 | // running <clinit> and will return. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3037 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 3038 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3039 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3040 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3041 | return true; |
| 3042 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3043 | // No. That's fine. Wait for another thread to finish initializing. |
| 3044 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3045 | } |
| 3046 | |
| 3047 | if (!ValidateSuperClassDescriptors(klass)) { |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3048 | klass->SetStatus(mirror::Class::kStatusError, self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3049 | return false; |
| 3050 | } |
| 3051 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3052 | CHECK_EQ(klass->GetStatus(), mirror::Class::kStatusVerified) << PrettyClass(klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3053 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3054 | // From here out other threads may observe that we're initializing and so changes of state |
| 3055 | // require the a notification. |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 3056 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3057 | klass->SetStatus(mirror::Class::kStatusInitializing, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3058 | |
| 3059 | t0 = NanoTime(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3060 | } |
| 3061 | |
Brian Carlstrom | 6d3f72c | 2013-08-21 18:06:34 -0700 | [diff] [blame] | 3062 | // Initialize super classes, must be done while initializing for the JLS. |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3063 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 3064 | mirror::Class* super_class = klass->GetSuperClass(); |
| 3065 | if (!super_class->IsInitialized()) { |
| 3066 | CHECK(!super_class->IsInterface()); |
| 3067 | CHECK(can_init_parents); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3068 | SirtRef<mirror::Class> sirt_super(self, super_class); |
| 3069 | bool super_initialized = InitializeClass(sirt_super, can_init_statics, true); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3070 | if (!super_initialized) { |
| 3071 | // The super class was verified ahead of entering initializing, we should only be here if |
| 3072 | // the super class became erroneous due to initialization. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3073 | CHECK(sirt_super->IsErroneous() && self->IsExceptionPending()) |
| 3074 | << "Super class initialization failed for " << PrettyDescriptor(sirt_super.get()) |
| 3075 | << " that has unexpected status " << sirt_super->GetStatus() |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3076 | << "\nPending exception:\n" |
| 3077 | << (self->GetException(NULL) != NULL ? self->GetException(NULL)->Dump() : ""); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3078 | ObjectLock<mirror::Class> lock(self, &klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3079 | // Initialization failed because the super-class is erroneous. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3080 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3081 | return false; |
| 3082 | } |
Ian Rogers | 1bddec3 | 2012-02-04 12:27:34 -0800 | [diff] [blame] | 3083 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3084 | } |
| 3085 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3086 | if (klass->NumStaticFields() > 0) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3087 | ClassHelper kh(klass.get()); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3088 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
| 3089 | CHECK(dex_class_def != NULL); |
| 3090 | const DexFile& dex_file = kh.GetDexFile(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3091 | SirtRef<mirror::ClassLoader> class_loader(self, klass->GetClassLoader()); |
| 3092 | SirtRef<mirror::DexCache> dex_cache(self, kh.GetDexCache()); |
| 3093 | EncodedStaticFieldValueIterator it(dex_file, &dex_cache, &class_loader, |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3094 | this, *dex_class_def); |
| 3095 | if (it.HasNext()) { |
| 3096 | CHECK(can_init_statics); |
| 3097 | // We reordered the fields, so we need to be able to map the field indexes to the right fields. |
| 3098 | SafeMap<uint32_t, mirror::ArtField*> field_map; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3099 | ConstructFieldMap(dex_file, *dex_class_def, klass.get(), field_map); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3100 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
| 3101 | it.ReadValueToField(field_map.Get(i)); |
| 3102 | } |
| 3103 | } |
| 3104 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3105 | |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 3106 | mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3107 | if (clinit != NULL) { |
| 3108 | CHECK(can_init_statics); |
| 3109 | if (LIKELY(Runtime::Current()->IsStarted())) { |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 3110 | JValue result; |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 3111 | clinit->Invoke(self, NULL, 0, &result, 'V'); |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 3112 | } else { |
Jeff Hao | 6474d19 | 2013-03-26 14:08:09 -0700 | [diff] [blame] | 3113 | art::interpreter::EnterInterpreterFromInvoke(self, clinit, NULL, NULL, NULL); |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 3114 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3115 | } |
| 3116 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3117 | // Opportunistically set static method trampolines to their destination. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3118 | FixupStaticTrampolines(klass.get()); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 3119 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3120 | uint64_t t1 = NanoTime(); |
| 3121 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3122 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3123 | { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3124 | ObjectLock<mirror::Class> lock(self, &klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3125 | |
| 3126 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3127 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3128 | klass->SetStatus(mirror::Class::kStatusError, self); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3129 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3130 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 3131 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 3132 | RuntimeStats* thread_stats = self->GetStats(); |
| 3133 | ++global_stats->class_init_count; |
| 3134 | ++thread_stats->class_init_count; |
| 3135 | global_stats->class_init_time_ns += (t1 - t0); |
| 3136 | thread_stats->class_init_time_ns += (t1 - t0); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 3137 | // Set the class as initialized except if failed to initialize static fields. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3138 | klass->SetStatus(mirror::Class::kStatusInitialized, self); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3139 | if (VLOG_IS_ON(class_linker)) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3140 | ClassHelper kh(klass.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3141 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 3142 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3143 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3144 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 3145 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3146 | } |
| 3147 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3148 | bool ClassLinker::WaitForInitializeClass(const SirtRef<mirror::Class>& klass, Thread* self, |
| 3149 | ObjectLock<mirror::Class>& lock) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3150 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3151 | while (true) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3152 | self->AssertNoPendingException(); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3153 | CHECK(!klass->IsInitialized()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 3154 | lock.WaitIgnoringInterrupts(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3155 | |
| 3156 | // When we wake up, repeat the test for init-in-progress. If |
| 3157 | // there's an exception pending (only possible if |
| 3158 | // "interruptShouldThrow" was set), bail out. |
| 3159 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 3160 | WrapExceptionInInitializer(); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3161 | klass->SetStatus(mirror::Class::kStatusError, self); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3162 | return false; |
| 3163 | } |
| 3164 | // Spurious wakeup? Go back to waiting. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3165 | if (klass->GetStatus() == mirror::Class::kStatusInitializing) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3166 | continue; |
| 3167 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3168 | if (klass->GetStatus() == mirror::Class::kStatusVerified && Runtime::Current()->IsCompiler()) { |
Ian Rogers | 3d1548d | 2012-09-24 14:08:03 -0700 | [diff] [blame] | 3169 | // Compile time initialization failed. |
| 3170 | return false; |
| 3171 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3172 | if (klass->IsErroneous()) { |
| 3173 | // The caller wants an exception, but it was thrown in a |
| 3174 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 3175 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3176 | PrettyDescriptor(klass.get()).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3177 | return false; |
| 3178 | } |
| 3179 | if (klass->IsInitialized()) { |
| 3180 | return true; |
| 3181 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3182 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass.get()) << " is " |
| 3183 | << klass->GetStatus(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3184 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3185 | LOG(FATAL) << "Not Reached" << PrettyClass(klass.get()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 3186 | } |
| 3187 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3188 | bool ClassLinker::ValidateSuperClassDescriptors(const SirtRef<mirror::Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3189 | if (klass->IsInterface()) { |
| 3190 | return true; |
| 3191 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3192 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3193 | // begin with the methods local to the superclass |
| 3194 | if (klass->HasSuperClass() && |
| 3195 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3196 | SirtRef<mirror::Class> super(self, klass->GetSuperClass()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3197 | for (int i = super->GetVTable()->GetLength() - 1; i >= 0; --i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3198 | const mirror::ArtMethod* method = klass->GetVTable()->Get(i); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3199 | if (method != super->GetVTable()->Get(i) && |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3200 | !IsSameMethodSignatureInDifferentClassContexts(method, super.get(), klass.get())) { |
| 3201 | ThrowLinkageError(klass.get(), "Class %s method %s resolves differently in superclass %s", |
| 3202 | PrettyDescriptor(klass.get()).c_str(), PrettyMethod(method).c_str(), |
| 3203 | PrettyDescriptor(super.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3204 | return false; |
| 3205 | } |
| 3206 | } |
| 3207 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3208 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3209 | SirtRef<mirror::Class> interface(self, klass->GetIfTable()->GetInterface(i)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3210 | if (klass->GetClassLoader() != interface->GetClassLoader()) { |
| 3211 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3212 | const mirror::ArtMethod* method = klass->GetIfTable()->GetMethodArray(i)->Get(j); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3213 | if (!IsSameMethodSignatureInDifferentClassContexts(method, interface.get(), |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3214 | method->GetDeclaringClass())) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3215 | ThrowLinkageError(klass.get(), "Class %s method %s resolves differently in interface %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3216 | PrettyDescriptor(method->GetDeclaringClass()).c_str(), |
| 3217 | PrettyMethod(method).c_str(), |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3218 | PrettyDescriptor(interface.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3219 | return false; |
| 3220 | } |
| 3221 | } |
| 3222 | } |
| 3223 | } |
| 3224 | return true; |
| 3225 | } |
| 3226 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3227 | // Returns true if classes referenced by the signature of the method are the |
| 3228 | // same classes in klass1 as they are in klass2. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3229 | bool ClassLinker::IsSameMethodSignatureInDifferentClassContexts(const mirror::ArtMethod* method, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3230 | const mirror::Class* klass1, |
| 3231 | const mirror::Class* klass2) { |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3232 | if (klass1 == klass2) { |
| 3233 | return true; |
Brian Carlstrom | e10b697 | 2011-09-26 13:49:03 -0700 | [diff] [blame] | 3234 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3235 | Thread* self = Thread::Current(); |
| 3236 | CHECK(klass1 != nullptr); |
| 3237 | CHECK(klass2 != nullptr); |
| 3238 | SirtRef<mirror::ClassLoader> loader1(self, klass1->GetClassLoader()); |
| 3239 | SirtRef<mirror::ClassLoader> loader2(self, klass2->GetClassLoader()); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3240 | const DexFile& dex_file = *method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3241 | const DexFile::ProtoId& proto_id = |
| 3242 | dex_file.GetMethodPrototype(dex_file.GetMethodId(method->GetDexMethodIndex())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3243 | for (DexFileParameterIterator it(dex_file, proto_id); it.HasNext(); it.Next()) { |
| 3244 | const char* descriptor = it.GetDescriptor(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3245 | if (descriptor == nullptr) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3246 | break; |
| 3247 | } |
| 3248 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 3249 | // Found a non-primitive type. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3250 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, loader1, loader2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3251 | return false; |
| 3252 | } |
| 3253 | } |
| 3254 | } |
| 3255 | // Check the return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 3256 | const char* descriptor = dex_file.GetReturnTypeDescriptor(proto_id); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3257 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3258 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, loader1, loader2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3259 | return false; |
| 3260 | } |
| 3261 | } |
| 3262 | return true; |
| 3263 | } |
| 3264 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3265 | // 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] | 3266 | bool ClassLinker::IsSameDescriptorInDifferentClassContexts(const char* descriptor, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3267 | SirtRef<mirror::ClassLoader>& loader1, |
| 3268 | SirtRef<mirror::ClassLoader>& loader2) { |
| 3269 | CHECK(descriptor != nullptr); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3270 | Thread* self = Thread::Current(); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3271 | SirtRef<mirror::Class> found1(self, FindClass(descriptor, loader1)); |
| 3272 | if (found1.get() == nullptr) { |
| 3273 | self->ClearException(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3274 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3275 | mirror::Class* found2 = FindClass(descriptor, loader2); |
| 3276 | if (found2 == nullptr) { |
| 3277 | self->ClearException(); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3278 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3279 | return found1.get() == found2; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3280 | } |
| 3281 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3282 | bool ClassLinker::EnsureInitialized(const SirtRef<mirror::Class>& c, bool can_init_fields, |
| 3283 | bool can_init_parents) { |
| 3284 | DCHECK(c.get() != NULL); |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 3285 | if (c->IsInitialized()) { |
| 3286 | return true; |
| 3287 | } |
| 3288 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 3289 | bool success = InitializeClass(c, can_init_fields, can_init_parents); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3290 | if (!success) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3291 | if (can_init_fields && can_init_parents) { |
| 3292 | CHECK(Thread::Current()->IsExceptionPending()) << PrettyClass(c.get()); |
| 3293 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 3294 | } |
| 3295 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 3296 | } |
| 3297 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3298 | 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] | 3299 | mirror::Class* c, |
| 3300 | SafeMap<uint32_t, mirror::ArtField*>& field_map) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3301 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3302 | ClassDataItemIterator it(dex_file, class_data); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3303 | Thread* self = Thread::Current(); |
| 3304 | SirtRef<mirror::DexCache> dex_cache(self, c->GetDexCache()); |
| 3305 | SirtRef<mirror::ClassLoader> class_loader(self, c->GetClassLoader()); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3306 | CHECK(!kMovingFields); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3307 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3308 | 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] | 3309 | } |
| 3310 | } |
| 3311 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3312 | bool ClassLinker::LinkClass(Thread* self, const SirtRef<mirror::Class>& klass, |
| 3313 | const SirtRef<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3314 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3315 | if (!LinkSuperClass(klass)) { |
| 3316 | return false; |
| 3317 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 3318 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3319 | return false; |
| 3320 | } |
| 3321 | if (!LinkInstanceFields(klass)) { |
| 3322 | return false; |
| 3323 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3324 | if (!LinkStaticFields(klass)) { |
| 3325 | return false; |
| 3326 | } |
| 3327 | CreateReferenceInstanceOffsets(klass); |
| 3328 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3329 | CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus()); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3330 | klass->SetStatus(mirror::Class::kStatusResolved, self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3331 | return true; |
| 3332 | } |
| 3333 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3334 | bool ClassLinker::LoadSuperAndInterfaces(const SirtRef<mirror::Class>& klass, |
| 3335 | const DexFile& dex_file) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3336 | CHECK_EQ(mirror::Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3337 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(klass->GetDexClassDefIndex()); |
| 3338 | uint16_t super_class_idx = class_def.superclass_idx_; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3339 | if (super_class_idx != DexFile::kDexNoIndex16) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3340 | mirror::Class* super_class = ResolveType(dex_file, super_class_idx, klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3341 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 3342 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3343 | return false; |
| 3344 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3345 | // Verify |
| 3346 | if (!klass->CanAccess(super_class)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3347 | ThrowIllegalAccessError(klass.get(), "Class %s extended by class %s is inaccessible", |
| 3348 | PrettyDescriptor(super_class).c_str(), |
| 3349 | PrettyDescriptor(klass.get()).c_str()); |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 3350 | return false; |
| 3351 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3352 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3353 | } |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 3354 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(class_def); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3355 | if (interfaces != NULL) { |
| 3356 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 3357 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3358 | mirror::Class* interface = ResolveType(dex_file, idx, klass.get()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3359 | if (interface == NULL) { |
| 3360 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3361 | return false; |
| 3362 | } |
| 3363 | // Verify |
| 3364 | if (!klass->CanAccess(interface)) { |
| 3365 | // TODO: the RI seemed to ignore this in my testing. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3366 | ThrowIllegalAccessError(klass.get(), "Interface %s implemented by class %s is inaccessible", |
| 3367 | PrettyDescriptor(interface).c_str(), |
| 3368 | PrettyDescriptor(klass.get()).c_str()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3369 | return false; |
| 3370 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3371 | } |
| 3372 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 3373 | // Mark the class as loaded. |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3374 | klass->SetStatus(mirror::Class::kStatusLoaded, NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3375 | return true; |
| 3376 | } |
| 3377 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3378 | bool ClassLinker::LinkSuperClass(const SirtRef<mirror::Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3379 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3380 | mirror::Class* super = klass->GetSuperClass(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3381 | if (klass.get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3382 | if (super != NULL) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3383 | ThrowClassFormatError(klass.get(), "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3384 | return false; |
| 3385 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3386 | return true; |
| 3387 | } |
| 3388 | if (super == NULL) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3389 | ThrowLinkageError(klass.get(), "No superclass defined for class %s", |
| 3390 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3391 | return false; |
| 3392 | } |
| 3393 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3394 | if (super->IsFinal() || super->IsInterface()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3395 | ThrowIncompatibleClassChangeError(klass.get(), "Superclass %s of %s is %s", |
| 3396 | PrettyDescriptor(super).c_str(), |
| 3397 | PrettyDescriptor(klass.get()).c_str(), |
| 3398 | super->IsFinal() ? "declared final" : "an interface"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3399 | return false; |
| 3400 | } |
| 3401 | if (!klass->CanAccess(super)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3402 | ThrowIllegalAccessError(klass.get(), "Superclass %s is inaccessible to class %s", |
| 3403 | PrettyDescriptor(super).c_str(), |
| 3404 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3405 | return false; |
| 3406 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 3407 | |
| 3408 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 3409 | if (super->IsFinalizable()) { |
| 3410 | klass->SetFinalizable(); |
| 3411 | } |
| 3412 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3413 | // Inherit reference flags (if any) from the superclass. |
| 3414 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 3415 | if (reference_flags != 0) { |
| 3416 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 3417 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3418 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 3419 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3420 | ThrowLinkageError(klass.get(), |
| 3421 | "Class %s attempts to subclass java.lang.ref.Reference, which is not allowed", |
| 3422 | PrettyDescriptor(klass.get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 3423 | return false; |
| 3424 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 3425 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 3426 | if (kIsDebugBuild) { |
| 3427 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 3428 | while (super != NULL) { |
| 3429 | CHECK(super->IsResolved()); |
| 3430 | super = super->GetSuperClass(); |
| 3431 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3432 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3433 | return true; |
| 3434 | } |
| 3435 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3436 | // Populate the class vtable and itable. Compute return type indices. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3437 | bool ClassLinker::LinkMethods(const SirtRef<mirror::Class>& klass, |
| 3438 | const SirtRef<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3439 | if (klass->IsInterface()) { |
| 3440 | // No vtable. |
| 3441 | size_t count = klass->NumVirtualMethods(); |
| 3442 | if (!IsUint(16, count)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3443 | ThrowClassFormatError(klass.get(), "Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3444 | return false; |
| 3445 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 3446 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3447 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3448 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 3449 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3450 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3451 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 3452 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3453 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3454 | } |
| 3455 | return true; |
| 3456 | } |
| 3457 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3458 | bool ClassLinker::LinkVirtualMethods(const SirtRef<mirror::Class>& klass) { |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3459 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3460 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3461 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 3462 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3463 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3464 | // 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] | 3465 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3466 | vtable(self, klass->GetSuperClass()->GetVTable()->CopyOf(self, max_count)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3467 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3468 | CHECK(self->IsExceptionPending()); // OOME. |
| 3469 | return false; |
| 3470 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3471 | // See if any of our virtual methods override the superclass. |
| 3472 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3473 | mirror::ArtMethod* local_method = klass->GetVirtualMethodDuringLinking(i); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3474 | MethodHelper local_mh(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3475 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3476 | for (; j < actual_count; ++j) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3477 | mirror::ArtMethod* super_method = vtable->Get(j); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3478 | MethodHelper super_mh(super_method); |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3479 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
| 3480 | if (klass->CanAccessMember(super_method->GetDeclaringClass(), super_method->GetAccessFlags())) { |
| 3481 | if (super_method->IsFinal()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3482 | ThrowLinkageError(klass.get(), "Method %s overrides final method in class %s", |
Elliott Hughes | 3971737 | 2012-07-13 16:21:23 -0700 | [diff] [blame] | 3483 | PrettyMethod(local_method).c_str(), |
| 3484 | super_mh.GetDeclaringClassDescriptor()); |
| 3485 | return false; |
| 3486 | } |
| 3487 | vtable->Set(j, local_method); |
| 3488 | local_method->SetMethodIndex(j); |
| 3489 | break; |
| 3490 | } else { |
| 3491 | LOG(WARNING) << "Before Android 4.1, method " << PrettyMethod(local_method) |
| 3492 | << " would have incorrectly overridden the package-private method in " |
| 3493 | << PrettyDescriptor(super_mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3494 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3495 | } |
| 3496 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 3497 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3498 | // Not overriding, append. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3499 | vtable->Set(actual_count, local_method); |
| 3500 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3501 | actual_count += 1; |
| 3502 | } |
| 3503 | } |
| 3504 | if (!IsUint(16, actual_count)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3505 | ThrowClassFormatError(klass.get(), "Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3506 | return false; |
| 3507 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3508 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3509 | CHECK_LE(actual_count, max_count); |
| 3510 | if (actual_count < max_count) { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3511 | vtable.reset(vtable->CopyOf(self, actual_count)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3512 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3513 | CHECK(self->IsExceptionPending()); // OOME. |
| 3514 | return false; |
| 3515 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3516 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3517 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3518 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3519 | CHECK(klass.get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3520 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3521 | if (!IsUint(16, num_virtual_methods)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3522 | ThrowClassFormatError(klass.get(), "Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3523 | return false; |
| 3524 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3525 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
| 3526 | vtable(self, AllocArtMethodArray(self, num_virtual_methods)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3527 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3528 | CHECK(self->IsExceptionPending()); // OOME. |
| 3529 | return false; |
| 3530 | } |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 3531 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3532 | mirror::ArtMethod* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3533 | vtable->Set(i, virtual_method); |
| 3534 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3535 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3536 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3537 | } |
| 3538 | return true; |
| 3539 | } |
| 3540 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3541 | bool ClassLinker::LinkInterfaceMethods(const SirtRef<mirror::Class>& klass, |
| 3542 | const SirtRef<mirror::ObjectArray<mirror::Class> >& interfaces) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3543 | // Set the imt table to be all conflicts by default. |
| 3544 | klass->SetImTable(Runtime::Current()->GetDefaultImt()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3545 | size_t super_ifcount; |
| 3546 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3547 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3548 | } else { |
| 3549 | super_ifcount = 0; |
| 3550 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3551 | size_t ifcount = super_ifcount; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3552 | uint32_t num_interfaces; |
| 3553 | { |
| 3554 | ClassHelper kh(klass.get()); |
| 3555 | num_interfaces = |
| 3556 | interfaces.get() == nullptr ? kh.NumDirectInterfaces() : interfaces->GetLength(); |
| 3557 | ifcount += num_interfaces; |
| 3558 | for (size_t i = 0; i < num_interfaces; i++) { |
| 3559 | mirror::Class* interface = |
| 3560 | interfaces.get() == nullptr ? kh.GetDirectInterface(i) : interfaces->Get(i); |
| 3561 | ifcount += interface->GetIfTableCount(); |
| 3562 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3563 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3564 | if (ifcount == 0) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3565 | // Class implements no interfaces. |
| 3566 | DCHECK_EQ(klass->GetIfTableCount(), 0); |
| 3567 | DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3568 | return true; |
| 3569 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3570 | if (ifcount == super_ifcount) { |
| 3571 | // Class implements same interfaces as parent, are any of these not marker interfaces? |
| 3572 | bool has_non_marker_interface = false; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3573 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3574 | for (size_t i = 0; i < ifcount; ++i) { |
| 3575 | if (super_iftable->GetMethodArrayCount(i) > 0) { |
| 3576 | has_non_marker_interface = true; |
| 3577 | break; |
| 3578 | } |
| 3579 | } |
| 3580 | if (!has_non_marker_interface) { |
| 3581 | // Class just inherits marker interfaces from parent so recycle parent's iftable. |
| 3582 | klass->SetIfTable(super_iftable); |
| 3583 | return true; |
| 3584 | } |
| 3585 | } |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 3586 | Thread* self = Thread::Current(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3587 | SirtRef<mirror::IfTable> iftable(self, AllocIfTable(self, ifcount)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3588 | if (UNLIKELY(iftable.get() == NULL)) { |
| 3589 | CHECK(self->IsExceptionPending()); // OOME. |
| 3590 | return false; |
| 3591 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3592 | if (super_ifcount != 0) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3593 | mirror::IfTable* super_iftable = klass->GetSuperClass()->GetIfTable(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3594 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3595 | mirror::Class* super_interface = super_iftable->GetInterface(i); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3596 | iftable->SetInterface(i, super_interface); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3597 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3598 | } |
| 3599 | // Flatten the interface inheritance hierarchy. |
| 3600 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3601 | for (size_t i = 0; i < num_interfaces; i++) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3602 | ClassHelper kh(klass.get()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3603 | mirror::Class* interface = |
| 3604 | interfaces.get() == nullptr ? kh.GetDirectInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3605 | DCHECK(interface != NULL); |
| 3606 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3607 | ClassHelper ih(interface); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3608 | ThrowIncompatibleClassChangeError(klass.get(), "Class %s implements non-interface class %s", |
| 3609 | PrettyDescriptor(klass.get()).c_str(), |
| 3610 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3611 | return false; |
| 3612 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3613 | // Check if interface is already in iftable |
| 3614 | bool duplicate = false; |
| 3615 | for (size_t j = 0; j < idx; j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3616 | mirror::Class* existing_interface = iftable->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3617 | if (existing_interface == interface) { |
| 3618 | duplicate = true; |
| 3619 | break; |
| 3620 | } |
| 3621 | } |
| 3622 | if (!duplicate) { |
| 3623 | // Add this non-duplicate interface. |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3624 | iftable->SetInterface(idx++, interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3625 | // Add this interface's non-duplicate super-interfaces. |
| 3626 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3627 | mirror::Class* super_interface = interface->GetIfTable()->GetInterface(j); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3628 | bool super_duplicate = false; |
| 3629 | for (size_t k = 0; k < idx; k++) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3630 | mirror::Class* existing_interface = iftable->GetInterface(k); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3631 | if (existing_interface == super_interface) { |
| 3632 | super_duplicate = true; |
| 3633 | break; |
| 3634 | } |
| 3635 | } |
| 3636 | if (!super_duplicate) { |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3637 | iftable->SetInterface(idx++, super_interface); |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3638 | } |
| 3639 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3640 | } |
| 3641 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3642 | // Shrink iftable in case duplicates were found |
| 3643 | if (idx < ifcount) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3644 | 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] | 3645 | if (UNLIKELY(iftable.get() == NULL)) { |
| 3646 | CHECK(self->IsExceptionPending()); // OOME. |
| 3647 | return false; |
| 3648 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 3649 | ifcount = idx; |
| 3650 | } else { |
| 3651 | CHECK_EQ(idx, ifcount); |
| 3652 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3653 | klass->SetIfTable(iftable.get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3654 | |
| 3655 | // 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] | 3656 | if (klass->IsInterface()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3657 | return true; |
| 3658 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3659 | // Allocate imtable |
| 3660 | bool imtable_changed = false; |
| 3661 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > imtable(self, AllocArtMethodArray(self, kImtSize)); |
| 3662 | if (UNLIKELY(imtable.get() == NULL)) { |
| 3663 | CHECK(self->IsExceptionPending()); // OOME. |
| 3664 | return false; |
| 3665 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3666 | std::vector<mirror::ArtMethod*> miranda_list; |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 3667 | for (size_t i = 0; i < ifcount; ++i) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3668 | size_t num_methods = iftable->GetInterface(i)->NumVirtualMethods(); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3669 | if (num_methods > 0) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3670 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
| 3671 | method_array(self, AllocArtMethodArray(self, num_methods)); |
| 3672 | if (UNLIKELY(method_array.get() == nullptr)) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3673 | CHECK(self->IsExceptionPending()); // OOME. |
| 3674 | return false; |
| 3675 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3676 | iftable->SetMethodArray(i, method_array.get()); |
| 3677 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > vtable(self, |
| 3678 | klass->GetVTableDuringLinking()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3679 | for (size_t j = 0; j < num_methods; ++j) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3680 | mirror::ArtMethod* interface_method = iftable->GetInterface(i)->GetVirtualMethod(j); |
| 3681 | MethodHelper interface_mh(interface_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3682 | int32_t k; |
| 3683 | // For each method listed in the interface's method list, find the |
| 3684 | // matching method in our class's method list. We want to favor the |
| 3685 | // subclass over the superclass, which just requires walking |
| 3686 | // back from the end of the vtable. (This only matters if the |
| 3687 | // superclass defines a private method and this class redefines |
| 3688 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 3689 | // those don't end up in the virtual method table, so it shouldn't |
| 3690 | // matter which direction we go. We walk it backward anyway.) |
| 3691 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3692 | mirror::ArtMethod* vtable_method = vtable->Get(k); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3693 | MethodHelper vtable_mh(vtable_method); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3694 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Elliott Hughes | 6824361 | 2013-02-22 17:16:07 -0800 | [diff] [blame] | 3695 | if (!vtable_method->IsAbstract() && !vtable_method->IsPublic()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3696 | ThrowIllegalAccessError(klass.get(), |
| 3697 | "Method '%s' implementing interface method '%s' is not public", |
| 3698 | PrettyMethod(vtable_method).c_str(), |
| 3699 | PrettyMethod(interface_method).c_str()); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3700 | return false; |
| 3701 | } |
| 3702 | method_array->Set(j, vtable_method); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3703 | // Place method in imt if entry is empty, place conflict otherwise. |
| 3704 | uint32_t imt_index = interface_method->GetDexMethodIndex() % kImtSize; |
| 3705 | if (imtable->Get(imt_index) == NULL) { |
| 3706 | imtable->Set(imt_index, vtable_method); |
| 3707 | imtable_changed = true; |
| 3708 | } else { |
| 3709 | imtable->Set(imt_index, Runtime::Current()->GetImtConflictMethod()); |
| 3710 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3711 | break; |
| 3712 | } |
| 3713 | } |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3714 | if (k < 0) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3715 | SirtRef<mirror::ArtMethod> miranda_method(self, NULL); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3716 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3717 | mirror::ArtMethod* mir_method = miranda_list[mir]; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3718 | MethodHelper vtable_mh(mir_method); |
Ian Rogers | 9bc8191 | 2012-10-11 21:43:36 -0700 | [diff] [blame] | 3719 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
| 3720 | miranda_method.reset(miranda_list[mir]); |
| 3721 | break; |
| 3722 | } |
| 3723 | } |
| 3724 | if (miranda_method.get() == NULL) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3725 | // Point the interface table at a phantom slot. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3726 | miranda_method.reset(down_cast<mirror::ArtMethod*>(interface_method->Clone(self))); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3727 | if (UNLIKELY(miranda_method.get() == NULL)) { |
| 3728 | CHECK(self->IsExceptionPending()); // OOME. |
| 3729 | return false; |
| 3730 | } |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3731 | // 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] | 3732 | miranda_list.push_back(miranda_method.get()); |
| 3733 | } |
| 3734 | method_array->Set(j, miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3735 | } |
| 3736 | } |
| 3737 | } |
| 3738 | } |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 3739 | if (imtable_changed) { |
| 3740 | // Fill in empty entries in interface method table with conflict. |
| 3741 | mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod(); |
| 3742 | for (size_t i = 0; i < kImtSize; i++) { |
| 3743 | if (imtable->Get(i) == NULL) { |
| 3744 | imtable->Set(i, imt_conflict_method); |
| 3745 | } |
| 3746 | } |
| 3747 | klass->SetImTable(imtable.get()); |
| 3748 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3749 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 3750 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3751 | int new_method_count = old_method_count + miranda_list.size(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3752 | mirror::ObjectArray<mirror::ArtMethod>* virtuals; |
| 3753 | if (old_method_count == 0) { |
| 3754 | virtuals = AllocArtMethodArray(self, new_method_count); |
| 3755 | } else { |
| 3756 | virtuals = klass->GetVirtualMethods()->CopyOf(self, new_method_count); |
| 3757 | } |
| 3758 | if (UNLIKELY(virtuals == NULL)) { |
| 3759 | CHECK(self->IsExceptionPending()); // OOME. |
| 3760 | return false; |
| 3761 | } |
| 3762 | klass->SetVirtualMethods(virtuals); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3763 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3764 | SirtRef<mirror::ObjectArray<mirror::ArtMethod> > |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3765 | vtable(self, klass->GetVTableDuringLinking()); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 3766 | CHECK(vtable.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3767 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3768 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3769 | vtable.reset(vtable->CopyOf(self, new_vtable_count)); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 3770 | if (UNLIKELY(vtable.get() == NULL)) { |
| 3771 | CHECK(self->IsExceptionPending()); // OOME. |
| 3772 | return false; |
| 3773 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3774 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3775 | mirror::ArtMethod* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 3776 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 3777 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 3778 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 3779 | klass->SetVirtualMethod(old_method_count + i, method); |
| 3780 | vtable->Set(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3781 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3782 | // 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] | 3783 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3784 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3785 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3786 | mirror::ObjectArray<mirror::ArtMethod>* vtable = klass->GetVTableDuringLinking(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 3787 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 3788 | CHECK(vtable->Get(i) != NULL); |
| 3789 | } |
| 3790 | |
| 3791 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 3792 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3793 | return true; |
| 3794 | } |
| 3795 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3796 | bool ClassLinker::LinkInstanceFields(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3797 | CHECK(klass.get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3798 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3799 | } |
| 3800 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3801 | bool ClassLinker::LinkStaticFields(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3802 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3803 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3804 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3805 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3806 | return success; |
| 3807 | } |
| 3808 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3809 | struct LinkFieldsComparator { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3810 | explicit LinkFieldsComparator() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 3811 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3812 | // 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] | 3813 | bool operator()(const mirror::ArtField* field1, const mirror::ArtField* field2) |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3814 | NO_THREAD_SAFETY_ANALYSIS { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3815 | // First come reference fields, then 64-bit, and finally 32-bit |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3816 | FieldHelper fh1(field1); |
| 3817 | Primitive::Type type1 = fh1.GetTypeAsPrimitiveType(); |
| 3818 | FieldHelper fh2(field2); |
| 3819 | Primitive::Type type2 = fh2.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3820 | bool isPrimitive1 = type1 != Primitive::kPrimNot; |
| 3821 | bool isPrimitive2 = type2 != Primitive::kPrimNot; |
| 3822 | bool is64bit1 = isPrimitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 3823 | bool is64bit2 = isPrimitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3824 | int order1 = (!isPrimitive1 ? 0 : (is64bit1 ? 1 : 2)); |
| 3825 | int order2 = (!isPrimitive2 ? 0 : (is64bit2 ? 1 : 2)); |
| 3826 | if (order1 != order2) { |
| 3827 | return order1 < order2; |
| 3828 | } |
| 3829 | |
| 3830 | // same basic group? then sort by string. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3831 | const char* name1 = fh1.GetName(); |
| 3832 | const char* name2 = fh2.GetName(); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3833 | return strcmp(name1, name2) < 0; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3834 | } |
| 3835 | }; |
| 3836 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3837 | bool ClassLinker::LinkFields(const SirtRef<mirror::Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3838 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3839 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3840 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3841 | mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3842 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3843 | |
| 3844 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 3845 | size_t size; |
| 3846 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3847 | if (is_static) { |
| 3848 | size = klass->GetClassSize(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3849 | field_offset = mirror::Class::FieldsOffset(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3850 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3851 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3852 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 3853 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3854 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3855 | } |
| 3856 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3857 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3858 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3859 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3860 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3861 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3862 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3863 | std::deque<mirror::ArtField*> grouped_and_sorted_fields; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3864 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3865 | mirror::ArtField* f = fields->Get(i); |
| 3866 | CHECK(f != NULL); |
| 3867 | grouped_and_sorted_fields.push_back(f); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3868 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3869 | std::sort(grouped_and_sorted_fields.begin(), grouped_and_sorted_fields.end(), |
| 3870 | LinkFieldsComparator()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3871 | |
| 3872 | // References should be at the front. |
| 3873 | size_t current_field = 0; |
| 3874 | size_t num_reference_fields = 0; |
| 3875 | for (; current_field < num_fields; current_field++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3876 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3877 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3878 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3879 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3880 | if (isPrimitive) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3881 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3882 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3883 | grouped_and_sorted_fields.pop_front(); |
| 3884 | num_reference_fields++; |
| 3885 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3886 | field->SetOffset(field_offset); |
| 3887 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3888 | } |
| 3889 | |
| 3890 | // Now we want to pack all of the double-wide fields together. If |
| 3891 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 3892 | // 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] | 3893 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3894 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3895 | mirror::ArtField* field = grouped_and_sorted_fields[i]; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3896 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3897 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3898 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 3899 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3900 | continue; |
| 3901 | } |
| 3902 | fields->Set(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3903 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3904 | // drop the consumed field |
| 3905 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 3906 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3907 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3908 | // whether we found a 32-bit field for padding or not, we advance |
| 3909 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3910 | } |
| 3911 | |
| 3912 | // Alignment is good, shuffle any double-wide fields forward, and |
| 3913 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 3914 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3915 | while (!grouped_and_sorted_fields.empty()) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3916 | mirror::ArtField* field = grouped_and_sorted_fields.front(); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3917 | grouped_and_sorted_fields.pop_front(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3918 | FieldHelper fh(field); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3919 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3920 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3921 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3922 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3923 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3924 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3925 | ? sizeof(uint64_t) |
| 3926 | : sizeof(uint32_t))); |
| 3927 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3928 | } |
| 3929 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3930 | // 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] | 3931 | if (!is_static && |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3932 | (strcmp("Ljava/lang/ref/Reference;", ClassHelper(klass.get()).GetDescriptor()) == 0)) { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3933 | // We know there are no non-reference fields in the Reference classes, and we know |
| 3934 | // that 'referent' is alphabetically last, so this is easy... |
| 3935 | CHECK_EQ(num_reference_fields, num_fields); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3936 | FieldHelper fh(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 3937 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 3938 | --num_reference_fields; |
| 3939 | } |
| 3940 | |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3941 | if (kIsDebugBuild) { |
| 3942 | // Make sure that all reference fields appear before |
| 3943 | // non-reference fields, and all double-wide fields are aligned. |
| 3944 | bool seen_non_ref = false; |
| 3945 | for (size_t i = 0; i < num_fields; i++) { |
| 3946 | mirror::ArtField* field = fields->Get(i); |
| 3947 | if (false) { // enable to debug field layout |
| 3948 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
| 3949 | << " class=" << PrettyClass(klass.get()) |
| 3950 | << " field=" << PrettyField(field) |
| 3951 | << " offset=" << field->GetField32(MemberOffset(mirror::ArtField::OffsetOffset()), |
| 3952 | false); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3953 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3954 | FieldHelper fh(field); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3955 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
| 3956 | bool is_primitive = type != Primitive::kPrimNot; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3957 | if ((strcmp("Ljava/lang/ref/Reference;", ClassHelper(klass.get()).GetDescriptor()) == 0) |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 3958 | && (strcmp("referent", fh.GetName()) == 0)) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 3959 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 3960 | } |
| 3961 | if (is_primitive) { |
| 3962 | if (!seen_non_ref) { |
| 3963 | seen_non_ref = true; |
| 3964 | DCHECK_EQ(num_reference_fields, i); |
| 3965 | } |
| 3966 | } else { |
| 3967 | DCHECK(!seen_non_ref); |
| 3968 | } |
| 3969 | } |
| 3970 | if (!seen_non_ref) { |
| 3971 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3972 | } |
| 3973 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3974 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3975 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3976 | if (is_static) { |
| 3977 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 3978 | klass->SetClassSize(size); |
| 3979 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3980 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 3981 | if (!klass->IsVariableSize()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 3982 | DCHECK_GE(size, sizeof(mirror::Object)) << ClassHelper(klass.get()).GetDescriptor(); |
Mathieu Chartier | 79b4f38 | 2013-10-23 15:21:37 -0700 | [diff] [blame] | 3983 | size_t previous_size = klass->GetObjectSize(); |
| 3984 | if (previous_size != 0) { |
| 3985 | // Make sure that we didn't originally have an incorrect size. |
| 3986 | CHECK_EQ(previous_size, size); |
| 3987 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3988 | klass->SetObjectSize(size); |
| 3989 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3990 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3991 | return true; |
| 3992 | } |
| 3993 | |
| 3994 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 3995 | // list. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 3996 | void ClassLinker::CreateReferenceInstanceOffsets(const SirtRef<mirror::Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3997 | uint32_t reference_offsets = 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 3998 | mirror::Class* super_class = klass->GetSuperClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3999 | if (super_class != NULL) { |
| 4000 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4001 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4002 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 4003 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4004 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4005 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4006 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4007 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4008 | } |
| 4009 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4010 | void ClassLinker::CreateReferenceStaticOffsets(const SirtRef<mirror::Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4011 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4012 | } |
| 4013 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4014 | void ClassLinker::CreateReferenceOffsets(const SirtRef<mirror::Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4015 | uint32_t reference_offsets) { |
| 4016 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4017 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 4018 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4019 | const mirror::ObjectArray<mirror::ArtField>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4020 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4021 | // All of the fields that contain object references are guaranteed |
| 4022 | // to be at the beginning of the fields list. |
| 4023 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 4024 | // Note that byte_offset is the offset from the beginning of |
| 4025 | // object, not the offset into instance data |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4026 | const mirror::ArtField* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4027 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4028 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 4029 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 4030 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 4031 | CHECK_NE(new_bit, 0U); |
| 4032 | reference_offsets |= new_bit; |
| 4033 | } else { |
| 4034 | reference_offsets = CLASS_WALK_SUPER; |
| 4035 | break; |
| 4036 | } |
| 4037 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4038 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4039 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4040 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 4041 | } else { |
| 4042 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4043 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4044 | } |
| 4045 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4046 | mirror::String* ClassLinker::ResolveString(const DexFile& dex_file, uint32_t string_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4047 | const SirtRef<mirror::DexCache>& dex_cache) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4048 | DCHECK(dex_cache.get() != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4049 | mirror::String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4050 | if (resolved != NULL) { |
| 4051 | return resolved; |
| 4052 | } |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4053 | uint32_t utf16_length; |
| 4054 | const char* utf8_data = dex_file.StringDataAndUtf16LengthByIdx(string_idx, &utf16_length); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4055 | mirror::String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4056 | dex_cache->SetResolvedString(string_idx, string); |
| 4057 | return string; |
| 4058 | } |
| 4059 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4060 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
| 4061 | const mirror::Class* referrer) { |
| 4062 | Thread* self = Thread::Current(); |
| 4063 | SirtRef<mirror::DexCache> dex_cache(self, referrer->GetDexCache()); |
| 4064 | SirtRef<mirror::ClassLoader> class_loader(self, referrer->GetClassLoader()); |
| 4065 | return ResolveType(dex_file, type_idx, dex_cache, class_loader); |
| 4066 | } |
| 4067 | |
| 4068 | mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4069 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4070 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4071 | DCHECK(dex_cache.get() != NULL); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4072 | mirror::Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4073 | if (resolved == NULL) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 4074 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 4075 | resolved = FindClass(descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4076 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 4077 | // TODO: we used to throw here if resolved's class loader was not the |
| 4078 | // boot class loader. This was to permit different classes with the |
| 4079 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4080 | dex_cache->SetResolvedType(type_idx, resolved); |
| 4081 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4082 | Thread* self = Thread::Current(); |
| 4083 | CHECK(self->IsExceptionPending()) |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 4084 | << "Expected pending exception for failed resolution of: " << descriptor; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4085 | // Convert a ClassNotFoundException to a NoClassDefFoundError. |
| 4086 | SirtRef<mirror::Throwable> cause(self, self->GetException(NULL)); |
| 4087 | if (cause->InstanceOf(GetClassRoot(kJavaLangClassNotFoundException))) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4088 | SirtRef<mirror::Class> sirt_resolved(self, resolved); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4089 | Thread::Current()->ClearException(); |
| 4090 | ThrowNoClassDefFoundError("Failed resolution of: %s", descriptor); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4091 | self->GetException(NULL)->SetCause(cause.get()); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4092 | resolved = sirt_resolved.get(); |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4093 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 4094 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4095 | } |
Brian Carlstrom | abcf7ae | 2013-09-23 22:19:52 -0700 | [diff] [blame] | 4096 | DCHECK((resolved == NULL) || resolved->IsResolved() || resolved->IsErroneous()) |
| 4097 | << PrettyDescriptor(resolved) << " " << resolved->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4098 | return resolved; |
| 4099 | } |
| 4100 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4101 | mirror::ArtMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4102 | uint32_t method_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4103 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4104 | const SirtRef<mirror::ClassLoader>& class_loader, |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4105 | const mirror::ArtMethod* referrer, |
| 4106 | InvokeType type) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4107 | DCHECK(dex_cache.get() != NULL); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4108 | // Check for hit in the dex cache. |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4109 | mirror::ArtMethod* resolved = dex_cache->GetResolvedMethod(method_idx); |
Ian Rogers | 8d31bbd | 2013-10-13 10:44:14 -0700 | [diff] [blame] | 4110 | if (resolved != NULL && !resolved->IsRuntimeMethod()) { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4111 | return resolved; |
| 4112 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4113 | // Fail, get the declaring class. |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4114 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4115 | 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] | 4116 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 4117 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4118 | return NULL; |
| 4119 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4120 | // Scan using method_idx, this saves string compares but will only hit for matching dex |
| 4121 | // caches/files. |
| 4122 | switch (type) { |
| 4123 | case kDirect: // Fall-through. |
| 4124 | case kStatic: |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4125 | resolved = klass->FindDirectMethod(dex_cache.get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4126 | break; |
| 4127 | case kInterface: |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4128 | resolved = klass->FindInterfaceMethod(dex_cache.get(), method_idx); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4129 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4130 | break; |
| 4131 | case kSuper: // Fall-through. |
| 4132 | case kVirtual: |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4133 | resolved = klass->FindVirtualMethod(dex_cache.get(), method_idx); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4134 | break; |
| 4135 | default: |
| 4136 | LOG(FATAL) << "Unreachable - invocation type: " << type; |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4137 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4138 | if (resolved == NULL) { |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4139 | // Search by name, which works across dex files. |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4140 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4141 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4142 | switch (type) { |
| 4143 | case kDirect: // Fall-through. |
| 4144 | case kStatic: |
jeffhao | 8cd6dda | 2012-02-22 10:15:34 -0800 | [diff] [blame] | 4145 | resolved = klass->FindDirectMethod(name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4146 | break; |
| 4147 | case kInterface: |
| 4148 | resolved = klass->FindInterfaceMethod(name, signature); |
Ian Rogers | 4c5b265 | 2012-12-15 21:36:16 -0800 | [diff] [blame] | 4149 | DCHECK(resolved == NULL || resolved->GetDeclaringClass()->IsInterface()); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4150 | break; |
| 4151 | case kSuper: // Fall-through. |
| 4152 | case kVirtual: |
| 4153 | resolved = klass->FindVirtualMethod(name, signature); |
| 4154 | break; |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4155 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4156 | } |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4157 | if (resolved != NULL) { |
| 4158 | // We found a method, check for incompatible class changes. |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4159 | if (resolved->CheckIncompatibleClassChange(type)) { |
| 4160 | resolved = NULL; |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4161 | } |
| 4162 | } |
| 4163 | if (resolved != NULL) { |
| 4164 | // Be a good citizen and update the dex cache to speed subsequent calls. |
| 4165 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 4166 | return resolved; |
| 4167 | } else { |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4168 | // We failed to find the method which means either an access error, an incompatible class |
| 4169 | // 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] | 4170 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
Ian Rogers | d91d6d6 | 2013-09-25 20:26:14 -0700 | [diff] [blame] | 4171 | const Signature signature = dex_file.GetMethodSignature(method_id); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4172 | switch (type) { |
| 4173 | case kDirect: |
| 4174 | case kStatic: |
| 4175 | resolved = klass->FindVirtualMethod(name, signature); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4176 | break; |
| 4177 | case kInterface: |
| 4178 | case kVirtual: |
| 4179 | case kSuper: |
| 4180 | resolved = klass->FindDirectMethod(name, signature); |
| 4181 | break; |
| 4182 | } |
| 4183 | |
| 4184 | // If we found something, check that it can be accessed by the referrer. |
| 4185 | if (resolved != NULL && referrer != NULL) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4186 | mirror::Class* methods_class = resolved->GetDeclaringClass(); |
| 4187 | mirror::Class* referring_class = referrer->GetDeclaringClass(); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4188 | if (!referring_class->CanAccess(methods_class)) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4189 | ThrowIllegalAccessErrorClassForMethodDispatch(referring_class, methods_class, |
| 4190 | referrer, resolved, type); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4191 | return NULL; |
| 4192 | } else if (!referring_class->CanAccessMember(methods_class, |
| 4193 | resolved->GetAccessFlags())) { |
Ian Rogers | 87e552d | 2012-08-31 15:54:48 -0700 | [diff] [blame] | 4194 | ThrowIllegalAccessErrorMethod(referring_class, resolved); |
jeffhao | c0228b8 | 2012-08-29 18:15:05 -0700 | [diff] [blame] | 4195 | return NULL; |
| 4196 | } |
| 4197 | } |
| 4198 | |
| 4199 | // Otherwise, throw an IncompatibleClassChangeError if we found something, and check interface |
| 4200 | // methods and throw if we find the method there. If we find nothing, throw a NoSuchMethodError. |
| 4201 | switch (type) { |
| 4202 | case kDirect: |
| 4203 | case kStatic: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4204 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4205 | ThrowIncompatibleClassChangeError(type, kVirtual, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4206 | } else { |
| 4207 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4208 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4209 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4210 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4211 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4212 | } |
| 4213 | } |
| 4214 | break; |
| 4215 | case kInterface: |
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, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4218 | } else { |
| 4219 | resolved = klass->FindVirtualMethod(name, signature); |
| 4220 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4221 | ThrowIncompatibleClassChangeError(type, kVirtual, 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 kSuper: |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4228 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4229 | break; |
| 4230 | case kVirtual: |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4231 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4232 | ThrowIncompatibleClassChangeError(type, kDirect, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4233 | } else { |
| 4234 | resolved = klass->FindInterfaceMethod(name, signature); |
| 4235 | if (resolved != NULL) { |
Ian Rogers | 2fc1427 | 2012-08-30 10:56:57 -0700 | [diff] [blame] | 4236 | ThrowIncompatibleClassChangeError(type, kInterface, resolved, referrer); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4237 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 4238 | ThrowNoSuchMethodError(type, klass, name, signature); |
Ian Rogers | 08f753d | 2012-08-24 14:35:25 -0700 | [diff] [blame] | 4239 | } |
| 4240 | } |
| 4241 | break; |
| 4242 | } |
| 4243 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4244 | return NULL; |
| 4245 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4246 | } |
| 4247 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4248 | mirror::ArtField* ClassLinker::ResolveField(const DexFile& dex_file, uint32_t field_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4249 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4250 | const SirtRef<mirror::ClassLoader>& class_loader, |
Brian Carlstrom | e810452 | 2013-10-15 21:56:36 -0700 | [diff] [blame] | 4251 | bool is_static) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4252 | DCHECK(dex_cache.get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4253 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4254 | if (resolved != NULL) { |
| 4255 | return resolved; |
| 4256 | } |
| 4257 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4258 | 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] | 4259 | if (klass == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 4260 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4261 | return NULL; |
| 4262 | } |
| 4263 | |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4264 | if (is_static) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4265 | resolved = klass->FindStaticField(dex_cache.get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4266 | } else { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4267 | resolved = klass->FindInstanceField(dex_cache.get(), field_idx); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 4268 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4269 | |
| 4270 | if (resolved == NULL) { |
| 4271 | const char* name = dex_file.GetFieldName(field_id); |
| 4272 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 4273 | if (is_static) { |
| 4274 | resolved = klass->FindStaticField(name, type); |
| 4275 | } else { |
| 4276 | resolved = klass->FindInstanceField(name, type); |
| 4277 | } |
| 4278 | if (resolved == NULL) { |
| 4279 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass, type, name); |
| 4280 | return NULL; |
| 4281 | } |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4282 | } |
Ian Rogers | 7b0c5b4 | 2012-02-16 15:29:07 -0800 | [diff] [blame] | 4283 | dex_cache->SetResolvedField(field_idx, resolved); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4284 | return resolved; |
| 4285 | } |
| 4286 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4287 | mirror::ArtField* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4288 | uint32_t field_idx, |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame^] | 4289 | const SirtRef<mirror::DexCache>& dex_cache, |
| 4290 | const SirtRef<mirror::ClassLoader>& class_loader) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 4291 | DCHECK(dex_cache.get() != nullptr); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4292 | mirror::ArtField* resolved = dex_cache->GetResolvedField(field_idx); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4293 | if (resolved != NULL) { |
| 4294 | return resolved; |
| 4295 | } |
| 4296 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4297 | 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] | 4298 | if (klass == NULL) { |
| 4299 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 4300 | return NULL; |
| 4301 | } |
| 4302 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 4303 | StringPiece name(dex_file.StringDataByIdx(field_id.name_idx_)); |
| 4304 | StringPiece type(dex_file.StringDataByIdx( |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 4305 | dex_file.GetTypeId(field_id.type_idx_).descriptor_idx_)); |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 4306 | resolved = klass->FindField(name, type); |
| 4307 | if (resolved != NULL) { |
| 4308 | dex_cache->SetResolvedField(field_idx, resolved); |
| 4309 | } else { |
| 4310 | ThrowNoSuchFieldError("", klass, type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 4311 | } |
| 4312 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 4313 | } |
| 4314 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4315 | const char* ClassLinker::MethodShorty(uint32_t method_idx, mirror::ArtMethod* referrer, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4316 | uint32_t* length) { |
| 4317 | mirror::Class* declaring_class = referrer->GetDeclaringClass(); |
| 4318 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 4319 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4320 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Ian Rogers | 1984651 | 2012-02-24 11:42:47 -0800 | [diff] [blame] | 4321 | return dex_file.GetMethodShorty(method_id, length); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 4322 | } |
| 4323 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4324 | void ClassLinker::DumpAllClasses(int flags) { |
| 4325 | if (dex_cache_image_class_lookup_required_) { |
| 4326 | MoveImageClassesToClassTable(); |
| 4327 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4328 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 4329 | // 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] | 4330 | std::vector<mirror::Class*> all_classes; |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4331 | { |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4332 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4333 | for (const std::pair<size_t, mirror::Class*>& it : class_table_) { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4334 | all_classes.push_back(it.second); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 4335 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 4336 | } |
| 4337 | |
| 4338 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 4339 | all_classes[i]->DumpClass(std::cerr, flags); |
| 4340 | } |
| 4341 | } |
| 4342 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4343 | void ClassLinker::DumpForSigQuit(std::ostream& os) { |
| 4344 | if (dex_cache_image_class_lookup_required_) { |
| 4345 | MoveImageClassesToClassTable(); |
| 4346 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4347 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4348 | os << "Loaded classes: " << class_table_.size() << " allocated classes\n"; |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 4349 | } |
| 4350 | |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4351 | size_t ClassLinker::NumLoadedClasses() { |
| 4352 | if (dex_cache_image_class_lookup_required_) { |
| 4353 | MoveImageClassesToClassTable(); |
| 4354 | } |
Ian Rogers | 1bf8d4d | 2013-05-30 00:18:49 -0700 | [diff] [blame] | 4355 | ReaderMutexLock mu(Thread::Current(), *Locks::classlinker_classes_lock_); |
Ian Rogers | 7dfb28c | 2013-08-22 08:18:36 -0700 | [diff] [blame] | 4356 | return class_table_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 4357 | } |
| 4358 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4359 | pid_t ClassLinker::GetClassesLockOwner() { |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4360 | return Locks::classlinker_classes_lock_->GetExclusiveOwnerTid(); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 4361 | } |
| 4362 | |
| 4363 | pid_t ClassLinker::GetDexLockOwner() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4364 | return dex_lock_.GetExclusiveOwnerTid(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 4365 | } |
| 4366 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4367 | void ClassLinker::SetClassRoot(ClassRoot class_root, mirror::Class* klass) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4368 | DCHECK(!init_done_); |
| 4369 | |
| 4370 | DCHECK(klass != NULL); |
| 4371 | DCHECK(klass->GetClassLoader() == NULL); |
| 4372 | |
| 4373 | DCHECK(class_roots_ != NULL); |
| 4374 | DCHECK(class_roots_->Get(class_root) == NULL); |
| 4375 | class_roots_->Set(class_root, klass); |
| 4376 | } |
| 4377 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4378 | } // namespace art |