Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1 | // Copyright 2011 Google Inc. All Rights Reserved. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 3 | #include "class_linker.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 4 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 5 | #include <fcntl.h> |
| 6 | #include <sys/file.h> |
| 7 | #include <sys/stat.h> |
Brian Carlstrom | dbf05b7 | 2011-12-15 00:55:24 -0800 | [diff] [blame] | 8 | #include <sys/types.h> |
| 9 | #include <sys/wait.h> |
| 10 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 11 | #include <deque> |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 12 | #include <string> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 13 | #include <utility> |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 14 | #include <vector> |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 15 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 16 | #include "casts.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 17 | #include "class_loader.h" |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 18 | #include "debugger.h" |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 19 | #include "dex_cache.h" |
Elliott Hughes | 90a3369 | 2011-08-30 13:27:07 -0700 | [diff] [blame] | 20 | #include "dex_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 21 | #include "dex_verifier.h" |
| 22 | #include "heap.h" |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 23 | #include "intern_table.h" |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 24 | #include "leb128.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 25 | #include "logging.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 26 | #include "oat_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 27 | #include "object.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 28 | #include "object_utils.h" |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 29 | #include "runtime.h" |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 30 | #include "runtime_support.h" |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 31 | #include "ScopedLocalRef.h" |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 32 | #include "space.h" |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 33 | #include "stack_indirect_reference_table.h" |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 34 | #include "stl_util.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 35 | #include "thread.h" |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 36 | #include "UniquePtr.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 37 | #include "utils.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 38 | |
| 39 | namespace art { |
| 40 | |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 41 | namespace { |
| 42 | |
Elliott Hughes | 362f9bc | 2011-10-17 18:56:41 -0700 | [diff] [blame] | 43 | void ThrowNoClassDefFoundError(const char* fmt, ...) __attribute__((__format__(__printf__, 1, 2))); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 44 | void ThrowNoClassDefFoundError(const char* fmt, ...) { |
| 45 | va_list args; |
| 46 | va_start(args, fmt); |
| 47 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NoClassDefFoundError;", fmt, args); |
| 48 | va_end(args); |
| 49 | } |
| 50 | |
Elliott Hughes | 362f9bc | 2011-10-17 18:56:41 -0700 | [diff] [blame] | 51 | void ThrowClassFormatError(const char* fmt, ...) __attribute__((__format__(__printf__, 1, 2))); |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 52 | void ThrowClassFormatError(const char* fmt, ...) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 53 | va_list args; |
| 54 | va_start(args, fmt); |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 55 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/ClassFormatError;", fmt, args); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 56 | va_end(args); |
| 57 | } |
| 58 | |
Elliott Hughes | 362f9bc | 2011-10-17 18:56:41 -0700 | [diff] [blame] | 59 | void ThrowLinkageError(const char* fmt, ...) __attribute__((__format__(__printf__, 1, 2))); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 60 | void ThrowLinkageError(const char* fmt, ...) { |
| 61 | va_list args; |
| 62 | va_start(args, fmt); |
| 63 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/LinkageError;", fmt, args); |
| 64 | va_end(args); |
| 65 | } |
| 66 | |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 67 | void ThrowNoSuchMethodError(bool is_direct, Class* c, const StringPiece& name, |
| 68 | const StringPiece& signature) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 69 | ClassHelper kh(c); |
Elliott Hughes | 3b6baaa | 2011-10-14 19:13:56 -0700 | [diff] [blame] | 70 | std::ostringstream msg; |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 71 | msg << "no " << (is_direct ? "direct" : "virtual") << " method " << name << "." << signature |
| 72 | << " in class " << kh.GetDescriptor() << " or its superclasses"; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 73 | std::string location(kh.GetLocation()); |
| 74 | if (!location.empty()) { |
| 75 | msg << " (defined in " << location << ")"; |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 76 | } |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 77 | Thread::Current()->ThrowNewException("Ljava/lang/NoSuchMethodError;", msg.str().c_str()); |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 78 | } |
| 79 | |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 80 | void ThrowNoSuchFieldError(const StringPiece& scope, Class* c, const StringPiece& type, |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 81 | const StringPiece& name) { |
| 82 | ClassHelper kh(c); |
| 83 | std::ostringstream msg; |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 84 | msg << "no " << scope << "field " << name << " of type " << type |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 85 | << " in class " << kh.GetDescriptor() << " or its superclasses"; |
| 86 | std::string location(kh.GetLocation()); |
| 87 | if (!location.empty()) { |
| 88 | msg << " (defined in " << location << ")"; |
| 89 | } |
| 90 | Thread::Current()->ThrowNewException("Ljava/lang/NoSuchFieldError;", msg.str().c_str()); |
| 91 | } |
| 92 | |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 93 | void ThrowNullPointerException(const char* fmt, ...) __attribute__((__format__(__printf__, 1, 2))); |
| 94 | void ThrowNullPointerException(const char* fmt, ...) { |
| 95 | va_list args; |
| 96 | va_start(args, fmt); |
| 97 | Thread::Current()->ThrowNewExceptionV("Ljava/lang/NullPointerException;", fmt, args); |
| 98 | va_end(args); |
| 99 | } |
| 100 | |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 101 | void ThrowEarlierClassFailure(Class* c) { |
| 102 | /* |
| 103 | * The class failed to initialize on a previous attempt, so we want to throw |
| 104 | * a NoClassDefFoundError (v2 2.17.5). The exception to this rule is if we |
| 105 | * failed in verification, in which case v2 5.4.1 says we need to re-throw |
| 106 | * the previous error. |
| 107 | */ |
| 108 | LOG(INFO) << "Rejecting re-init on previously-failed class " << PrettyClass(c); |
| 109 | |
| 110 | if (c->GetVerifyErrorClass() != NULL) { |
| 111 | // 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] | 112 | ClassHelper ve_ch(c->GetVerifyErrorClass()); |
| 113 | std::string error_descriptor(ve_ch.GetDescriptor()); |
| 114 | Thread::Current()->ThrowNewException(error_descriptor.c_str(), PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 115 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 116 | ThrowNoClassDefFoundError("%s", PrettyDescriptor(c).c_str()); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 117 | } |
| 118 | } |
| 119 | |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 120 | void WrapExceptionInInitializer() { |
| 121 | JNIEnv* env = Thread::Current()->GetJniEnv(); |
| 122 | |
| 123 | ScopedLocalRef<jthrowable> cause(env, env->ExceptionOccurred()); |
| 124 | CHECK(cause.get() != NULL); |
| 125 | |
| 126 | env->ExceptionClear(); |
| 127 | |
| 128 | // TODO: add java.lang.Error to JniConstants? |
| 129 | ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/Error")); |
| 130 | CHECK(error_class.get() != NULL); |
| 131 | if (env->IsInstanceOf(cause.get(), error_class.get())) { |
| 132 | // We only wrap non-Error exceptions; an Error can just be used as-is. |
| 133 | env->Throw(cause.get()); |
| 134 | return; |
| 135 | } |
| 136 | |
| 137 | // TODO: add java.lang.ExceptionInInitializerError to JniConstants? |
| 138 | ScopedLocalRef<jclass> eiie_class(env, env->FindClass("java/lang/ExceptionInInitializerError")); |
| 139 | CHECK(eiie_class.get() != NULL); |
| 140 | |
| 141 | jmethodID mid = env->GetMethodID(eiie_class.get(), "<init>" , "(Ljava/lang/Throwable;)V"); |
| 142 | CHECK(mid != NULL); |
| 143 | |
| 144 | ScopedLocalRef<jthrowable> eiie(env, |
| 145 | reinterpret_cast<jthrowable>(env->NewObject(eiie_class.get(), mid, cause.get()))); |
| 146 | env->Throw(eiie.get()); |
| 147 | } |
| 148 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 149 | static size_t Hash(const char* s) { |
| 150 | // This is the java.lang.String hashcode for convenience, not interoperability. |
| 151 | size_t hash = 0; |
| 152 | for (; *s != '\0'; ++s) { |
| 153 | hash = hash * 31 + *s; |
| 154 | } |
| 155 | return hash; |
| 156 | } |
| 157 | |
Elliott Hughes | 362f9bc | 2011-10-17 18:56:41 -0700 | [diff] [blame] | 158 | } // namespace |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 159 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 160 | const char* ClassLinker::class_roots_descriptors_[] = { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 161 | "Ljava/lang/Class;", |
| 162 | "Ljava/lang/Object;", |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 163 | "[Ljava/lang/Class;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 164 | "[Ljava/lang/Object;", |
| 165 | "Ljava/lang/String;", |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 166 | "Ljava/lang/ref/Reference;", |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 167 | "Ljava/lang/reflect/Constructor;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 168 | "Ljava/lang/reflect/Field;", |
| 169 | "Ljava/lang/reflect/Method;", |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 170 | "Ljava/lang/reflect/Proxy;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 171 | "Ljava/lang/ClassLoader;", |
| 172 | "Ldalvik/system/BaseDexClassLoader;", |
| 173 | "Ldalvik/system/PathClassLoader;", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 174 | "Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 175 | "Z", |
| 176 | "B", |
| 177 | "C", |
| 178 | "D", |
| 179 | "F", |
| 180 | "I", |
| 181 | "J", |
| 182 | "S", |
| 183 | "V", |
| 184 | "[Z", |
| 185 | "[B", |
| 186 | "[C", |
| 187 | "[D", |
| 188 | "[F", |
| 189 | "[I", |
| 190 | "[J", |
| 191 | "[S", |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 192 | "[Ljava/lang/StackTraceElement;", |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 193 | }; |
| 194 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 195 | ClassLinker* ClassLinker::Create(const std::string& boot_class_path, InternTable* intern_table) { |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 196 | CHECK_NE(boot_class_path.size(), 0U); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 197 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 198 | class_linker->Init(boot_class_path); |
| 199 | return class_linker.release(); |
| 200 | } |
| 201 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 202 | ClassLinker* ClassLinker::Create(InternTable* intern_table) { |
| 203 | UniquePtr<ClassLinker> class_linker(new ClassLinker(intern_table)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 204 | class_linker->InitFromImage(); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 205 | return class_linker.release(); |
| 206 | } |
| 207 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 208 | ClassLinker::ClassLinker(InternTable* intern_table) |
| 209 | : dex_lock_("ClassLinker dex lock"), |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 210 | classes_lock_("ClassLinker classes lock"), |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 211 | class_roots_(NULL), |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 212 | array_iftable_(NULL), |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 213 | init_done_(false), |
| 214 | intern_table_(intern_table) { |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 215 | CHECK_EQ(arraysize(class_roots_descriptors_), size_t(kClassRootsMax)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 216 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 217 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 218 | void CreateClassPath(const std::string& class_path, |
| 219 | std::vector<const DexFile*>& class_path_vector) { |
| 220 | std::vector<std::string> parsed; |
| 221 | Split(class_path, ':', parsed); |
| 222 | for (size_t i = 0; i < parsed.size(); ++i) { |
| 223 | const DexFile* dex_file = DexFile::Open(parsed[i], Runtime::Current()->GetHostPrefix()); |
Brian Carlstrom | 0dd7dda | 2011-10-25 15:47:53 -0700 | [diff] [blame] | 224 | if (dex_file == NULL) { |
| 225 | LOG(WARNING) << "Failed to open dex file " << parsed[i]; |
| 226 | } else { |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 227 | class_path_vector.push_back(dex_file); |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | void ClassLinker::Init(const std::string& boot_class_path) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 233 | VLOG(startup) << "ClassLinker::InitFrom entering boot_class_path=" << boot_class_path; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 234 | |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 235 | CHECK(!init_done_); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 236 | |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 237 | // java_lang_Class comes first, it's needed for AllocClass |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 238 | SirtRef<Class> java_lang_Class(down_cast<Class*>(Heap::AllocObject(NULL, sizeof(ClassClass)))); |
| 239 | CHECK(java_lang_Class.get() != NULL); |
| 240 | java_lang_Class->SetClass(java_lang_Class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 241 | java_lang_Class->SetClassSize(sizeof(ClassClass)); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 242 | // AllocClass(Class*) can now be used |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 243 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 244 | // Class[] is used for reflection support. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 245 | SirtRef<Class> class_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 246 | class_array_class->SetComponentType(java_lang_Class.get()); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 247 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 248 | // java_lang_Object comes next so that object_array_class can be created |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 249 | SirtRef<Class> java_lang_Object(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 250 | CHECK(java_lang_Object.get() != NULL); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 251 | // backfill Object as the super class of Class |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 252 | java_lang_Class->SetSuperClass(java_lang_Object.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 253 | java_lang_Object->SetStatus(Class::kStatusLoaded); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 254 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 255 | // Object[] next to hold class roots |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 256 | SirtRef<Class> object_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 257 | object_array_class->SetComponentType(java_lang_Object.get()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 258 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 259 | // Setup the char class to be used for char[] |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 260 | SirtRef<Class> char_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 261 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 262 | // Setup the char[] class to be used for String |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 263 | SirtRef<Class> char_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
| 264 | char_array_class->SetComponentType(char_class.get()); |
| 265 | CharArray::SetArrayClass(char_array_class.get()); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 266 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 267 | // Setup String |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 268 | SirtRef<Class> java_lang_String(AllocClass(java_lang_Class.get(), sizeof(StringClass))); |
| 269 | String::SetClass(java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 270 | java_lang_String->SetObjectSize(sizeof(String)); |
| 271 | java_lang_String->SetStatus(Class::kStatusResolved); |
Jesse Wilson | 1415074 | 2011-07-29 19:04:44 -0400 | [diff] [blame] | 272 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 273 | // Create storage for root classes, save away our work so far (requires |
| 274 | // descriptors) |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 275 | class_roots_ = ObjectArray<Class>::Alloc(object_array_class.get(), kClassRootsMax); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 276 | CHECK(class_roots_ != NULL); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 277 | SetClassRoot(kJavaLangClass, java_lang_Class.get()); |
| 278 | SetClassRoot(kJavaLangObject, java_lang_Object.get()); |
| 279 | SetClassRoot(kClassArrayClass, class_array_class.get()); |
| 280 | SetClassRoot(kObjectArrayClass, object_array_class.get()); |
| 281 | SetClassRoot(kCharArrayClass, char_array_class.get()); |
| 282 | SetClassRoot(kJavaLangString, java_lang_String.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 283 | |
| 284 | // Setup the primitive type classes. |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 285 | SetClassRoot(kPrimitiveBoolean, CreatePrimitiveClass("Z", Primitive::kPrimBoolean)); |
| 286 | SetClassRoot(kPrimitiveByte, CreatePrimitiveClass("B", Primitive::kPrimByte)); |
| 287 | SetClassRoot(kPrimitiveShort, CreatePrimitiveClass("S", Primitive::kPrimShort)); |
| 288 | SetClassRoot(kPrimitiveInt, CreatePrimitiveClass("I", Primitive::kPrimInt)); |
| 289 | SetClassRoot(kPrimitiveLong, CreatePrimitiveClass("J", Primitive::kPrimLong)); |
| 290 | SetClassRoot(kPrimitiveFloat, CreatePrimitiveClass("F", Primitive::kPrimFloat)); |
| 291 | SetClassRoot(kPrimitiveDouble, CreatePrimitiveClass("D", Primitive::kPrimDouble)); |
| 292 | SetClassRoot(kPrimitiveVoid, CreatePrimitiveClass("V", Primitive::kPrimVoid)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 293 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 294 | // Create array interface entries to populate once we can load system classes |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 295 | array_iftable_ = AllocObjectArray<InterfaceEntry>(2); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 296 | |
| 297 | // Create int array type for AllocDexCache (done in AppendToBootClassPath) |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 298 | SirtRef<Class> int_array_class(AllocClass(java_lang_Class.get(), sizeof(Class))); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 299 | int_array_class->SetComponentType(GetClassRoot(kPrimitiveInt)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 300 | IntArray::SetArrayClass(int_array_class.get()); |
| 301 | SetClassRoot(kIntArrayClass, int_array_class.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 302 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 303 | // now that these are registered, we can use AllocClass() and AllocObjectArray |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 304 | |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 305 | // setup boot_class_path_ and register class_path now that we can |
| 306 | // use AllocObjectArray to create DexCache instances |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 307 | std::vector<const DexFile*> boot_class_path_vector; |
| 308 | CreateClassPath(boot_class_path, boot_class_path_vector); |
Brian Carlstrom | 0dd7dda | 2011-10-25 15:47:53 -0700 | [diff] [blame] | 309 | CHECK_NE(0U, boot_class_path_vector.size()); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 310 | for (size_t i = 0; i != boot_class_path_vector.size(); ++i) { |
| 311 | const DexFile* dex_file = boot_class_path_vector[i]; |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 312 | CHECK(dex_file != NULL); |
| 313 | AppendToBootClassPath(*dex_file); |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 314 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 315 | |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 316 | // Constructor, Field, and Method are necessary so that FindClass can link members |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 317 | SirtRef<Class> java_lang_reflect_Constructor(AllocClass(java_lang_Class.get(), sizeof(MethodClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 318 | CHECK(java_lang_reflect_Constructor.get() != NULL); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 319 | java_lang_reflect_Constructor->SetObjectSize(sizeof(Method)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 320 | SetClassRoot(kJavaLangReflectConstructor, java_lang_reflect_Constructor.get()); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 321 | java_lang_reflect_Constructor->SetStatus(Class::kStatusResolved); |
| 322 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 323 | SirtRef<Class> java_lang_reflect_Field(AllocClass(java_lang_Class.get(), sizeof(FieldClass))); |
| 324 | CHECK(java_lang_reflect_Field.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 325 | java_lang_reflect_Field->SetObjectSize(sizeof(Field)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 326 | SetClassRoot(kJavaLangReflectField, java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 327 | java_lang_reflect_Field->SetStatus(Class::kStatusResolved); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 328 | Field::SetClass(java_lang_reflect_Field.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 329 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 330 | SirtRef<Class> java_lang_reflect_Method(AllocClass(java_lang_Class.get(), sizeof(MethodClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 331 | CHECK(java_lang_reflect_Method.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 332 | java_lang_reflect_Method->SetObjectSize(sizeof(Method)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 333 | SetClassRoot(kJavaLangReflectMethod, java_lang_reflect_Method.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 334 | java_lang_reflect_Method->SetStatus(Class::kStatusResolved); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 335 | Method::SetClasses(java_lang_reflect_Constructor.get(), java_lang_reflect_Method.get()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 336 | |
| 337 | // now we can use FindSystemClass |
| 338 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 339 | // run char class through InitializePrimitiveClass to finish init |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 340 | InitializePrimitiveClass(char_class.get(), "C", Primitive::kPrimChar); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 341 | SetClassRoot(kPrimitiveChar, char_class.get()); // needs descriptor |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 342 | |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 343 | // Object and String need to be rerun through FindSystemClass to finish init |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 344 | java_lang_Object->SetStatus(Class::kStatusNotReady); |
| 345 | Class* Object_class = FindSystemClass("Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 346 | CHECK_EQ(java_lang_Object.get(), Object_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 347 | CHECK_EQ(java_lang_Object->GetObjectSize(), sizeof(Object)); |
| 348 | java_lang_String->SetStatus(Class::kStatusNotReady); |
| 349 | Class* String_class = FindSystemClass("Ljava/lang/String;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 350 | CHECK_EQ(java_lang_String.get(), String_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 351 | CHECK_EQ(java_lang_String->GetObjectSize(), sizeof(String)); |
| 352 | |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 353 | // 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] | 354 | SetClassRoot(kBooleanArrayClass, FindSystemClass("[Z")); |
| 355 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 356 | |
| 357 | SetClassRoot(kByteArrayClass, FindSystemClass("[B")); |
| 358 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 359 | |
| 360 | Class* found_char_array_class = FindSystemClass("[C"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 361 | CHECK_EQ(char_array_class.get(), found_char_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 362 | |
| 363 | SetClassRoot(kShortArrayClass, FindSystemClass("[S")); |
| 364 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
| 365 | |
| 366 | Class* found_int_array_class = FindSystemClass("[I"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 367 | CHECK_EQ(int_array_class.get(), found_int_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 368 | |
| 369 | SetClassRoot(kLongArrayClass, FindSystemClass("[J")); |
| 370 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 371 | |
| 372 | SetClassRoot(kFloatArrayClass, FindSystemClass("[F")); |
| 373 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 374 | |
| 375 | SetClassRoot(kDoubleArrayClass, FindSystemClass("[D")); |
| 376 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 377 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 378 | Class* found_class_array_class = FindSystemClass("[Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 379 | CHECK_EQ(class_array_class.get(), found_class_array_class); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 380 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 381 | Class* found_object_array_class = FindSystemClass("[Ljava/lang/Object;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 382 | CHECK_EQ(object_array_class.get(), found_object_array_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 383 | |
| 384 | // Setup the single, global copies of "interfaces" and "iftable" |
| 385 | Class* java_lang_Cloneable = FindSystemClass("Ljava/lang/Cloneable;"); |
| 386 | CHECK(java_lang_Cloneable != NULL); |
| 387 | Class* java_io_Serializable = FindSystemClass("Ljava/io/Serializable;"); |
| 388 | CHECK(java_io_Serializable != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 389 | // We assume that Cloneable/Serializable don't have superinterfaces -- |
| 390 | // normally we'd have to crawl up and explicitly list all of the |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 391 | // supers as well. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 392 | array_iftable_->Set(0, AllocInterfaceEntry(java_lang_Cloneable)); |
| 393 | array_iftable_->Set(1, AllocInterfaceEntry(java_io_Serializable)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 394 | |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 395 | // Sanity check Class[] and Object[]'s interfaces |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 396 | ClassHelper kh(class_array_class.get(), this); |
| 397 | CHECK_EQ(java_lang_Cloneable, kh.GetInterface(0)); |
| 398 | CHECK_EQ(java_io_Serializable, kh.GetInterface(1)); |
| 399 | kh.ChangeClass(object_array_class.get()); |
| 400 | CHECK_EQ(java_lang_Cloneable, kh.GetInterface(0)); |
| 401 | CHECK_EQ(java_io_Serializable, kh.GetInterface(1)); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 402 | // run Class, Constructor, Field, and Method through FindSystemClass. |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 403 | // this initializes their dex_cache_ fields and register them in classes_. |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 404 | Class* Class_class = FindSystemClass("Ljava/lang/Class;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 405 | CHECK_EQ(java_lang_Class.get(), Class_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 406 | |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 407 | java_lang_reflect_Constructor->SetStatus(Class::kStatusNotReady); |
| 408 | Class* Constructor_class = FindSystemClass("Ljava/lang/reflect/Constructor;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 409 | CHECK_EQ(java_lang_reflect_Constructor.get(), Constructor_class); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 410 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 411 | java_lang_reflect_Field->SetStatus(Class::kStatusNotReady); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 412 | Class* Field_class = FindSystemClass("Ljava/lang/reflect/Field;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 413 | CHECK_EQ(java_lang_reflect_Field.get(), Field_class); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 414 | |
| 415 | java_lang_reflect_Method->SetStatus(Class::kStatusNotReady); |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 416 | Class* Method_class = FindSystemClass("Ljava/lang/reflect/Method;"); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 417 | CHECK_EQ(java_lang_reflect_Method.get(), Method_class); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 418 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 419 | // End of special init trickery, subsequent classes may be loaded via FindSystemClass |
| 420 | |
| 421 | // Create java.lang.reflect.Proxy root |
| 422 | Class* java_lang_reflect_Proxy = FindSystemClass("Ljava/lang/reflect/Proxy;"); |
| 423 | SetClassRoot(kJavaLangReflectProxy, java_lang_reflect_Proxy); |
| 424 | |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 425 | // java.lang.ref classes need to be specially flagged, but otherwise are normal classes |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 426 | Class* java_lang_ref_Reference = FindSystemClass("Ljava/lang/ref/Reference;"); |
| 427 | SetClassRoot(kJavaLangRefReference, java_lang_ref_Reference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 428 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 429 | java_lang_ref_FinalizerReference->SetAccessFlags( |
| 430 | java_lang_ref_FinalizerReference->GetAccessFlags() | |
| 431 | kAccClassIsReference | kAccClassIsFinalizerReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 432 | Class* java_lang_ref_PhantomReference = FindSystemClass("Ljava/lang/ref/PhantomReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 433 | java_lang_ref_PhantomReference->SetAccessFlags( |
| 434 | java_lang_ref_PhantomReference->GetAccessFlags() | |
| 435 | kAccClassIsReference | kAccClassIsPhantomReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 436 | Class* java_lang_ref_SoftReference = FindSystemClass("Ljava/lang/ref/SoftReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 437 | java_lang_ref_SoftReference->SetAccessFlags( |
| 438 | java_lang_ref_SoftReference->GetAccessFlags() | kAccClassIsReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 439 | Class* java_lang_ref_WeakReference = FindSystemClass("Ljava/lang/ref/WeakReference;"); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 440 | java_lang_ref_WeakReference->SetAccessFlags( |
| 441 | java_lang_ref_WeakReference->GetAccessFlags() | |
| 442 | kAccClassIsReference | kAccClassIsWeakReference); |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 443 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 444 | // Setup the ClassLoaders, verifying the object_size_ |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 445 | Class* java_lang_ClassLoader = FindSystemClass("Ljava/lang/ClassLoader;"); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 446 | CHECK_EQ(java_lang_ClassLoader->GetObjectSize(), sizeof(ClassLoader)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 447 | SetClassRoot(kJavaLangClassLoader, java_lang_ClassLoader); |
| 448 | |
| 449 | Class* dalvik_system_BaseDexClassLoader = FindSystemClass("Ldalvik/system/BaseDexClassLoader;"); |
| 450 | CHECK_EQ(dalvik_system_BaseDexClassLoader->GetObjectSize(), sizeof(BaseDexClassLoader)); |
| 451 | SetClassRoot(kDalvikSystemBaseDexClassLoader, dalvik_system_BaseDexClassLoader); |
| 452 | |
| 453 | Class* dalvik_system_PathClassLoader = FindSystemClass("Ldalvik/system/PathClassLoader;"); |
| 454 | CHECK_EQ(dalvik_system_PathClassLoader->GetObjectSize(), sizeof(PathClassLoader)); |
| 455 | SetClassRoot(kDalvikSystemPathClassLoader, dalvik_system_PathClassLoader); |
| 456 | PathClassLoader::SetClass(dalvik_system_PathClassLoader); |
| 457 | |
| 458 | // Set up java.lang.StackTraceElement as a convenience |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 459 | SetClassRoot(kJavaLangStackTraceElement, FindSystemClass("Ljava/lang/StackTraceElement;")); |
| 460 | SetClassRoot(kJavaLangStackTraceElementArrayClass, FindSystemClass("[Ljava/lang/StackTraceElement;")); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 461 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Elliott Hughes | d8ddfd5 | 2011-08-15 14:32:53 -0700 | [diff] [blame] | 462 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 463 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 464 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 465 | VLOG(startup) << "ClassLinker::InitFrom exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 466 | } |
| 467 | |
| 468 | void ClassLinker::FinishInit() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 469 | VLOG(startup) << "ClassLinker::FinishInit entering"; |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 470 | |
| 471 | // Let the heap know some key offsets into java.lang.ref instances |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 472 | // Note: we hard code the field indexes here rather than using FindInstanceField |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 473 | // as the types of the field can't be resolved prior to the runtime being |
| 474 | // fully initialized |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 475 | Class* java_lang_ref_Reference = GetClassRoot(kJavaLangRefReference); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 476 | Class* java_lang_ref_ReferenceQueue = FindSystemClass("Ljava/lang/ref/ReferenceQueue;"); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 477 | Class* java_lang_ref_FinalizerReference = FindSystemClass("Ljava/lang/ref/FinalizerReference;"); |
| 478 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 479 | Heap::SetWellKnownClasses(java_lang_ref_FinalizerReference, java_lang_ref_ReferenceQueue); |
| 480 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 481 | const DexFile& java_lang_dex = FindDexFile(java_lang_ref_Reference->GetDexCache()); |
| 482 | |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 483 | Field* pendingNext = java_lang_ref_Reference->GetInstanceField(0); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 484 | FieldHelper fh(pendingNext, this); |
| 485 | CHECK_STREQ(fh.GetName(), "pendingNext"); |
| 486 | CHECK_EQ(java_lang_dex.GetFieldId(pendingNext->GetDexFieldIndex()).type_idx_, |
| 487 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 488 | |
| 489 | Field* queue = java_lang_ref_Reference->GetInstanceField(1); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 490 | fh.ChangeField(queue); |
| 491 | CHECK_STREQ(fh.GetName(), "queue"); |
| 492 | CHECK_EQ(java_lang_dex.GetFieldId(queue->GetDexFieldIndex()).type_idx_, |
| 493 | java_lang_ref_ReferenceQueue->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 494 | |
| 495 | Field* queueNext = java_lang_ref_Reference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 496 | fh.ChangeField(queueNext); |
| 497 | CHECK_STREQ(fh.GetName(), "queueNext"); |
| 498 | CHECK_EQ(java_lang_dex.GetFieldId(queueNext->GetDexFieldIndex()).type_idx_, |
| 499 | java_lang_ref_Reference->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 500 | |
| 501 | Field* referent = java_lang_ref_Reference->GetInstanceField(3); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 502 | fh.ChangeField(referent); |
| 503 | CHECK_STREQ(fh.GetName(), "referent"); |
| 504 | CHECK_EQ(java_lang_dex.GetFieldId(referent->GetDexFieldIndex()).type_idx_, |
| 505 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 506 | |
| 507 | Field* zombie = java_lang_ref_FinalizerReference->GetInstanceField(2); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 508 | fh.ChangeField(zombie); |
| 509 | CHECK_STREQ(fh.GetName(), "zombie"); |
| 510 | CHECK_EQ(java_lang_dex.GetFieldId(zombie->GetDexFieldIndex()).type_idx_, |
| 511 | GetClassRoot(kJavaLangObject)->GetDexTypeIndex()); |
Brian Carlstrom | 1619286 | 2011-09-12 17:50:06 -0700 | [diff] [blame] | 512 | |
| 513 | Heap::SetReferenceOffsets(referent->GetOffset(), |
| 514 | queue->GetOffset(), |
| 515 | queueNext->GetOffset(), |
| 516 | pendingNext->GetOffset(), |
| 517 | zombie->GetOffset()); |
| 518 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 519 | // ensure all class_roots_ are initialized |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 520 | for (size_t i = 0; i < kClassRootsMax; i++) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 521 | ClassRoot class_root = static_cast<ClassRoot>(i); |
| 522 | Class* klass = GetClassRoot(class_root); |
| 523 | CHECK(klass != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 524 | DCHECK(klass->IsArrayClass() || klass->IsPrimitive() || klass->GetDexCache() != NULL); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 525 | // note SetClassRoot does additional validation. |
| 526 | // if possible add new checks there to catch errors early |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 527 | } |
| 528 | |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 529 | CHECK(array_iftable_ != NULL); |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 530 | |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 531 | // disable the slow paths in FindClass and CreatePrimitiveClass now |
| 532 | // that Object, Class, and Object[] are setup |
| 533 | init_done_ = true; |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 534 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 535 | VLOG(startup) << "ClassLinker::FinishInit exiting"; |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 536 | } |
| 537 | |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 538 | void ClassLinker::RunRootClinits() { |
| 539 | Thread* self = Thread::Current(); |
| 540 | for (size_t i = 0; i < ClassLinker::kClassRootsMax; ++i) { |
| 541 | Class* c = GetClassRoot(ClassRoot(i)); |
| 542 | if (!c->IsArrayClass() && !c->IsPrimitive()) { |
| 543 | EnsureInitialized(GetClassRoot(ClassRoot(i)), true); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 544 | CHECK(!self->IsExceptionPending()) << PrettyTypeOf(self->GetException()); |
Elliott Hughes | 2a20cfd | 2011-09-23 19:30:41 -0700 | [diff] [blame] | 545 | } |
| 546 | } |
| 547 | } |
| 548 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 549 | bool ClassLinker::GenerateOatFile(const std::string& dex_filename, |
| 550 | int oat_fd, |
| 551 | const std::string& oat_cache_filename) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 552 | std::string dex2oat_string("/system/bin/dex2oat"); |
| 553 | #ifndef NDEBUG |
| 554 | dex2oat_string += 'd'; |
| 555 | #endif |
| 556 | const char* dex2oat = dex2oat_string.c_str(); |
| 557 | |
| 558 | const char* class_path = Runtime::Current()->GetClassPath().c_str(); |
| 559 | |
| 560 | std::string boot_image_option_string("--boot-image="); |
| 561 | boot_image_option_string += Heap::GetSpaces()[0]->GetImageFilename(); |
| 562 | const char* boot_image_option = boot_image_option_string.c_str(); |
| 563 | |
| 564 | std::string dex_file_option_string("--dex-file="); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 565 | dex_file_option_string += dex_filename; |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 566 | const char* dex_file_option = dex_file_option_string.c_str(); |
| 567 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 568 | std::string oat_fd_option_string("--oat-fd="); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 569 | StringAppendF(&oat_fd_option_string, "%d", oat_fd); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 570 | const char* oat_fd_option = oat_fd_option_string.c_str(); |
| 571 | |
| 572 | std::string oat_name_option_string("--oat-name="); |
| 573 | oat_name_option_string += oat_cache_filename; |
| 574 | const char* oat_name_option = oat_name_option_string.c_str(); |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 575 | |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 576 | // fork and exec dex2oat |
| 577 | pid_t pid = fork(); |
| 578 | if (pid == 0) { |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 579 | // no allocation allowed between fork and exec |
Ian Rogers | 725aee5 | 2012-01-11 11:56:56 -0800 | [diff] [blame] | 580 | |
| 581 | // change process groups, so we don't get reaped by ProcessManager |
| 582 | setpgid(0, 0); |
| 583 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 584 | execl(dex2oat, dex2oat, |
jeffhao | 5d84040 | 2011-10-24 17:09:45 -0700 | [diff] [blame] | 585 | "--runtime-arg", "-Xms64m", |
| 586 | "--runtime-arg", "-Xmx64m", |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 587 | "--runtime-arg", "-classpath", |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 588 | "--runtime-arg", class_path, |
| 589 | boot_image_option, |
| 590 | dex_file_option, |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 591 | oat_fd_option, |
| 592 | oat_name_option, |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 593 | NULL); |
| 594 | |
Brian Carlstrom | 29e7ac7 | 2011-12-05 23:42:57 -0800 | [diff] [blame] | 595 | PLOG(FATAL) << "execl(" << dex2oat << ") failed"; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 596 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 597 | } else { |
| 598 | // wait for dex2oat to finish |
| 599 | int status; |
| 600 | pid_t got_pid = TEMP_FAILURE_RETRY(waitpid(pid, &status, 0)); |
| 601 | if (got_pid != pid) { |
| 602 | PLOG(ERROR) << "waitpid failed: wanted " << pid << ", got " << got_pid; |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 603 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 604 | } |
| 605 | if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 606 | LOG(ERROR) << dex2oat << " failed with dex-file=" << dex_filename; |
| 607 | return false; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 608 | } |
| 609 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 610 | return true; |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 611 | } |
| 612 | |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 613 | void ClassLinker::RegisterOatFile(const OatFile& oat_file) { |
| 614 | MutexLock mu(dex_lock_); |
| 615 | RegisterOatFileLocked(oat_file); |
| 616 | } |
| 617 | |
| 618 | void ClassLinker::RegisterOatFileLocked(const OatFile& oat_file) { |
| 619 | dex_lock_.AssertHeld(); |
| 620 | oat_files_.push_back(&oat_file); |
| 621 | } |
| 622 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 623 | OatFile* ClassLinker::OpenOat(const Space* space) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 624 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 625 | const Runtime* runtime = Runtime::Current(); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 626 | VLOG(startup) << "ClassLinker::OpenOat entering"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 627 | const ImageHeader& image_header = space->GetImageHeader(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 628 | // Grab location but don't use Object::AsString as we haven't yet initialized the roots to |
| 629 | // check the down cast |
| 630 | String* oat_location = down_cast<String*>(image_header.GetImageRoot(ImageHeader::kOatLocation)); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 631 | std::string oat_filename; |
| 632 | oat_filename += runtime->GetHostPrefix(); |
| 633 | oat_filename += oat_location->ToModifiedUtf8(); |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 634 | OatFile* oat_file = OatFile::Open(oat_filename, "", image_header.GetOatBaseAddr()); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 635 | if (oat_file == NULL) { |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 636 | LOG(ERROR) << "Failed to open oat file " << oat_filename << " referenced from image."; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 637 | return NULL; |
| 638 | } |
| 639 | uint32_t oat_checksum = oat_file->GetOatHeader().GetChecksum(); |
| 640 | uint32_t image_oat_checksum = image_header.GetOatChecksum(); |
| 641 | if (oat_checksum != image_oat_checksum) { |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 642 | LOG(ERROR) << "Failed to match oat file checksum " << std::hex << oat_checksum |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 643 | << " to expected oat checksum " << std::hex << oat_checksum |
| 644 | << " in image"; |
| 645 | return NULL; |
| 646 | } |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 647 | RegisterOatFileLocked(*oat_file); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 648 | VLOG(startup) << "ClassLinker::OpenOat exiting"; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 649 | return oat_file; |
| 650 | } |
| 651 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 652 | const OatFile* ClassLinker::FindOpenedOatFileForDexFile(const DexFile& dex_file) { |
| 653 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 654 | const OatFile* oat_file = oat_files_[i]; |
| 655 | DCHECK(oat_file != NULL); |
Ian Rogers | 7fe2c69 | 2011-12-06 16:35:59 -0800 | [diff] [blame] | 656 | if (oat_file->GetOatDexFile(dex_file.GetLocation(), false)) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 657 | return oat_file; |
| 658 | } |
| 659 | } |
| 660 | return NULL; |
| 661 | } |
| 662 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 663 | class LockedFd { |
| 664 | public: |
| 665 | static LockedFd* CreateAndLock(std::string& name, mode_t mode) { |
| 666 | int fd = open(name.c_str(), O_CREAT | O_RDWR, mode); |
| 667 | if (fd == -1) { |
| 668 | PLOG(ERROR) << "Failed to open file '" << name << "'"; |
| 669 | return NULL; |
| 670 | } |
| 671 | fchmod(fd, mode); |
| 672 | |
| 673 | LOG(INFO) << "locking file " << name << " (fd=" << fd << ")"; |
| 674 | // try to lock non-blocking so we can log if we need may need to block |
| 675 | int result = flock(fd, LOCK_EX | LOCK_NB); |
| 676 | if (result == -1) { |
| 677 | LOG(WARNING) << "sleeping while locking file " << name; |
| 678 | // retry blocking |
| 679 | result = flock(fd, LOCK_EX); |
| 680 | } |
| 681 | if (result == -1) { |
| 682 | PLOG(ERROR) << "Failed to lock file '" << name << "'"; |
| 683 | close(fd); |
| 684 | return NULL; |
| 685 | } |
| 686 | return new LockedFd(fd); |
| 687 | } |
| 688 | |
| 689 | int GetFd() const { |
| 690 | return fd_; |
| 691 | } |
| 692 | |
| 693 | ~LockedFd() { |
| 694 | if (fd_ != -1) { |
| 695 | int result = flock(fd_, LOCK_UN); |
| 696 | if (result == -1) { |
| 697 | PLOG(WARNING) << "flock(" << fd_ << ", LOCK_UN) failed"; |
| 698 | } |
| 699 | close(fd_); |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | private: |
| 704 | explicit LockedFd(int fd) : fd_(fd) {} |
| 705 | |
| 706 | int fd_; |
| 707 | }; |
| 708 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 709 | const OatFile* ClassLinker::FindOatFileForDexFile(const DexFile& dex_file) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 710 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 711 | const OatFile* open_oat_file = FindOpenedOatFileForDexFile(dex_file); |
| 712 | if (open_oat_file != NULL) { |
| 713 | return open_oat_file; |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 714 | } |
| 715 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 716 | std::string oat_filename(OatFile::DexFilenameToOatFilename(dex_file.GetLocation())); |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 717 | open_oat_file = FindOpenedOatFileFromOatLocation(oat_filename); |
| 718 | if (open_oat_file != NULL) { |
| 719 | return open_oat_file; |
| 720 | } |
| 721 | |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 722 | while (true) { |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 723 | UniquePtr<const OatFile> oat_file(FindOatFileFromOatLocation(oat_filename)); |
| 724 | if (oat_file.get() != NULL) { |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 725 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
| 726 | if (dex_file.GetHeader().checksum_ == oat_dex_file->GetDexFileChecksum()) { |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 727 | RegisterOatFileLocked(*oat_file.get()); |
| 728 | return oat_file.release(); |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 729 | } |
| 730 | LOG(WARNING) << ".oat file " << oat_file->GetLocation() |
| 731 | << " checksum mismatch with " << dex_file.GetLocation() << " --- regenerating"; |
| 732 | if (TEMP_FAILURE_RETRY(unlink(oat_file->GetLocation().c_str())) != 0) { |
| 733 | PLOG(FATAL) << "Couldn't remove obsolete .oat file " << oat_file->GetLocation(); |
| 734 | } |
| 735 | // Fall through... |
Elliott Hughes | ed6d78e | 2011-10-25 17:35:14 -0700 | [diff] [blame] | 736 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 737 | // Try to generate oat file if it wasn't found or was obsolete. |
| 738 | // Note we can be racing with another runtime to do this. |
| 739 | std::string oat_cache_filename(GetArtCacheFilenameOrDie(oat_filename)); |
| 740 | UniquePtr<LockedFd> locked_fd(LockedFd::CreateAndLock(oat_cache_filename, 0644)); |
| 741 | if (locked_fd.get() == NULL) { |
| 742 | LOG(ERROR) << "Failed to create and lock oat file " << oat_cache_filename; |
| 743 | return NULL; |
Elliott Hughes | 234da57 | 2011-11-03 22:13:06 -0700 | [diff] [blame] | 744 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 745 | // Check to see if the fd we opened and locked matches the file in |
| 746 | // the filesystem. If they don't, then somebody else unlinked ours |
| 747 | // and created a new file, and we need to use that one instead. (If |
| 748 | // we caught them between the unlink and the create, we'll get an |
| 749 | // ENOENT from the file stat.) |
| 750 | struct stat fd_stat; |
| 751 | int fd_stat_result = fstat(locked_fd->GetFd(), &fd_stat); |
| 752 | if (fd_stat_result != 0) { |
| 753 | PLOG(ERROR) << "Failed to fstat file descriptor of oat file " << oat_cache_filename; |
| 754 | return NULL; |
| 755 | } |
| 756 | struct stat file_stat; |
| 757 | int file_stat_result = stat(oat_cache_filename.c_str(), &file_stat); |
| 758 | if (file_stat_result != 0 |
| 759 | || fd_stat.st_dev != file_stat.st_dev |
| 760 | || fd_stat.st_ino != file_stat.st_ino) { |
| 761 | LOG(INFO) << "Opened oat file " << oat_cache_filename << " is stale; sleeping and retrying"; |
| 762 | usleep(250 * 1000); // if something is hosed, don't peg machine |
| 763 | continue; |
| 764 | } |
| 765 | |
| 766 | // We have the correct file open and locked. If the file size is |
| 767 | // zero, then it was just created by us and we can generate its |
| 768 | // contents. If not, someone else created it. Either way, we'll |
| 769 | // loop to retry opening the file. |
| 770 | if (fd_stat.st_size == 0) { |
| 771 | bool success = GenerateOatFile(dex_file.GetLocation(), |
| 772 | locked_fd->GetFd(), |
| 773 | oat_cache_filename); |
| 774 | if (!success) { |
| 775 | LOG(ERROR) << "Failed to generate oat file " << oat_cache_filename; |
| 776 | return NULL; |
| 777 | } |
| 778 | } |
jeffhao | 262bf46 | 2011-10-20 18:36:32 -0700 | [diff] [blame] | 779 | } |
Brian Carlstrom | d601af8 | 2012-01-06 10:15:19 -0800 | [diff] [blame] | 780 | // Not reached |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 781 | } |
| 782 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 783 | const OatFile* ClassLinker::FindOpenedOatFileFromOatLocation(const std::string& oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 784 | for (size_t i = 0; i < oat_files_.size(); i++) { |
| 785 | const OatFile* oat_file = oat_files_[i]; |
| 786 | DCHECK(oat_file != NULL); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 787 | if (oat_file->GetLocation() == oat_location) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 788 | return oat_file; |
| 789 | } |
| 790 | } |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 791 | return NULL; |
| 792 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 793 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 794 | const OatFile* ClassLinker::FindOatFileFromOatLocation(const std::string& oat_location) { |
Brian Carlstrom | 866c862 | 2012-01-06 16:35:13 -0800 | [diff] [blame] | 795 | const OatFile* oat_file = OatFile::Open(oat_location, "", NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 796 | if (oat_file == NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 797 | if (oat_location.empty() || oat_location[0] != '/') { |
| 798 | LOG(ERROR) << "Failed to open oat file from " << oat_location; |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 799 | return NULL; |
| 800 | } |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 801 | |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 802 | // not found in /foo/bar/baz.oat? try /data/art-cache/foo@bar@baz.oat |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 803 | std::string cache_location(GetArtCacheFilenameOrDie(oat_location)); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 804 | oat_file = FindOpenedOatFileFromOatLocation(cache_location); |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 805 | if (oat_file != NULL) { |
| 806 | return oat_file; |
| 807 | } |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 808 | oat_file = OatFile::Open(cache_location, "", NULL); |
| 809 | if (oat_file == NULL) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 810 | LOG(INFO) << "Failed to open oat file from " << oat_location << " or " << cache_location << "."; |
Brian Carlstrom | a9f1978 | 2011-10-13 00:14:47 -0700 | [diff] [blame] | 811 | return NULL; |
| 812 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 813 | } |
Brian Carlstrom | fad7143 | 2011-10-16 20:25:10 -0700 | [diff] [blame] | 814 | |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 815 | CHECK(oat_file != NULL) << oat_location; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 816 | return oat_file; |
| 817 | } |
| 818 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 819 | void ClassLinker::InitFromImage() { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 820 | VLOG(startup) << "ClassLinker::InitFromImage entering"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 821 | CHECK(!init_done_); |
| 822 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 823 | const std::vector<Space*>& spaces = Heap::GetSpaces(); |
| 824 | for (size_t i = 0; i < spaces.size(); i++) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame^] | 825 | Space* space = spaces[i]; |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 826 | if (space->IsImageSpace()) { |
| 827 | OatFile* oat_file = OpenOat(space); |
| 828 | CHECK(oat_file != NULL) << "Failed to open oat file for image"; |
| 829 | Object* dex_caches_object = space->GetImageHeader().GetImageRoot(ImageHeader::kDexCaches); |
| 830 | ObjectArray<DexCache>* dex_caches = dex_caches_object->AsObjectArray<DexCache>(); |
| 831 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 832 | if (i == 0) { |
| 833 | // Special case of setting up the String class early so that we can test arbitrary objects |
| 834 | // as being Strings or not |
| 835 | Class* java_lang_String = spaces[0]->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots) |
| 836 | ->AsObjectArray<Class>()->Get(kJavaLangString); |
| 837 | String::SetClass(java_lang_String); |
| 838 | } |
| 839 | |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 840 | CHECK_EQ(oat_file->GetOatHeader().GetDexFileCount(), |
| 841 | static_cast<uint32_t>(dex_caches->GetLength())); |
| 842 | for (int i = 0; i < dex_caches->GetLength(); i++) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 843 | SirtRef<DexCache> dex_cache(dex_caches->Get(i)); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 844 | const std::string& dex_file_location(dex_cache->GetLocation()->ToModifiedUtf8()); |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 845 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file_location); |
| 846 | const DexFile* dex_file = oat_dex_file->OpenDexFile(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 847 | if (dex_file == NULL) { |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 848 | LOG(FATAL) << "Failed to open dex file " << dex_file_location |
| 849 | << " from within oat file " << oat_file->GetLocation(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 850 | } |
| 851 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 852 | CHECK_EQ(dex_file->GetHeader().checksum_, oat_dex_file->GetDexFileChecksum()); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 853 | |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 854 | AppendToBootClassPath(*dex_file, dex_cache); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 855 | } |
| 856 | } |
| 857 | } |
| 858 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 859 | HeapBitmap* heap_bitmap = Heap::GetLiveBits(); |
| 860 | DCHECK(heap_bitmap != NULL); |
| 861 | |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 862 | // reinit clases_ table |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 863 | heap_bitmap->Walk(InitFromImageCallback, this); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 864 | |
| 865 | // reinit class_roots_ |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 866 | Object* class_roots_object = spaces[0]->GetImageHeader().GetImageRoot(ImageHeader::kClassRoots); |
| 867 | class_roots_ = class_roots_object->AsObjectArray<Class>(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 868 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 869 | // reinit array_iftable_ from any array class instance, they should be == |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 870 | array_iftable_ = GetClassRoot(kObjectArrayClass)->GetIfTable(); |
| 871 | DCHECK(array_iftable_ == GetClassRoot(kBooleanArrayClass)->GetIfTable()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 872 | // String class root was set above |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 873 | Field::SetClass(GetClassRoot(kJavaLangReflectField)); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 874 | Method::SetClasses(GetClassRoot(kJavaLangReflectConstructor), GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 875 | BooleanArray::SetArrayClass(GetClassRoot(kBooleanArrayClass)); |
| 876 | ByteArray::SetArrayClass(GetClassRoot(kByteArrayClass)); |
| 877 | CharArray::SetArrayClass(GetClassRoot(kCharArrayClass)); |
| 878 | DoubleArray::SetArrayClass(GetClassRoot(kDoubleArrayClass)); |
| 879 | FloatArray::SetArrayClass(GetClassRoot(kFloatArrayClass)); |
| 880 | IntArray::SetArrayClass(GetClassRoot(kIntArrayClass)); |
| 881 | LongArray::SetArrayClass(GetClassRoot(kLongArrayClass)); |
| 882 | ShortArray::SetArrayClass(GetClassRoot(kShortArrayClass)); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 883 | PathClassLoader::SetClass(GetClassRoot(kDalvikSystemPathClassLoader)); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 884 | StackTraceElement::SetClass(GetClassRoot(kJavaLangStackTraceElement)); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 885 | |
| 886 | FinishInit(); |
Brian Carlstrom | 0a5b14d | 2011-09-27 13:29:15 -0700 | [diff] [blame] | 887 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 888 | VLOG(startup) << "ClassLinker::InitFromImage exiting"; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 889 | } |
| 890 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 891 | void ClassLinker::InitFromImageCallback(Object* obj, void* arg) { |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 892 | DCHECK(obj != NULL); |
| 893 | DCHECK(arg != NULL); |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 894 | ClassLinker* class_linker = reinterpret_cast<ClassLinker*>(arg); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 895 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 896 | if (obj->GetClass()->IsStringClass()) { |
Brian Carlstrom | 34f426c | 2011-10-04 12:58:02 -0700 | [diff] [blame] | 897 | class_linker->intern_table_->RegisterStrong(obj->AsString()); |
Brian Carlstrom | c74255f | 2011-09-11 22:47:39 -0700 | [diff] [blame] | 898 | return; |
| 899 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 900 | if (obj->IsClass()) { |
| 901 | // restore class to ClassLinker::classes_ table |
| 902 | Class* klass = obj->AsClass(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 903 | ClassHelper kh(klass, class_linker); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 904 | Class* existing = class_linker->InsertClass(kh.GetDescriptor(), klass, true); |
| 905 | DCHECK(existing == NULL) << kh.GetDescriptor(); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 906 | return; |
| 907 | } |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 908 | } |
| 909 | |
| 910 | // Keep in sync with InitCallback. Anything we visit, we need to |
| 911 | // reinit references to when reinitializing a ClassLinker from a |
| 912 | // mapped image. |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 913 | void ClassLinker::VisitRoots(Heap::RootVisitor* visitor, void* arg) const { |
| 914 | visitor(class_roots_, arg); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 915 | |
| 916 | for (size_t i = 0; i < dex_caches_.size(); i++) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 917 | visitor(dex_caches_[i], arg); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 918 | } |
| 919 | |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 920 | { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 921 | MutexLock mu(classes_lock_); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 922 | typedef Table::const_iterator It; // TODO: C++0x auto |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 923 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 924 | visitor(it->second, arg); |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 925 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 926 | // Note. we deliberately ignore the class roots in the image (held in image_classes_) |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 927 | } |
Brian Carlstrom | 7e93b50 | 2011-08-04 14:16:22 -0700 | [diff] [blame] | 928 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 929 | visitor(array_iftable_, arg); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 930 | } |
| 931 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 932 | void ClassLinker::VisitClasses(ClassVisitor* visitor, void* arg) const { |
| 933 | MutexLock mu(classes_lock_); |
| 934 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 935 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 936 | if (!visitor(it->second, arg)) { |
| 937 | return; |
| 938 | } |
| 939 | } |
| 940 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 941 | if (!visitor(it->second, arg)) { |
| 942 | return; |
| 943 | } |
| 944 | } |
| 945 | } |
| 946 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 947 | ClassLinker::~ClassLinker() { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 948 | String::ResetClass(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 949 | Field::ResetClass(); |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 950 | Method::ResetClasses(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 951 | BooleanArray::ResetArrayClass(); |
| 952 | ByteArray::ResetArrayClass(); |
| 953 | CharArray::ResetArrayClass(); |
| 954 | DoubleArray::ResetArrayClass(); |
| 955 | FloatArray::ResetArrayClass(); |
| 956 | IntArray::ResetArrayClass(); |
| 957 | LongArray::ResetArrayClass(); |
| 958 | ShortArray::ResetArrayClass(); |
| 959 | PathClassLoader::ResetClass(); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 960 | StackTraceElement::ResetClass(); |
Brian Carlstrom | 58ae941 | 2011-10-04 00:56:06 -0700 | [diff] [blame] | 961 | STLDeleteElements(&boot_class_path_); |
| 962 | STLDeleteElements(&oat_files_); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 963 | } |
| 964 | |
| 965 | DexCache* ClassLinker::AllocDexCache(const DexFile& dex_file) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 966 | SirtRef<DexCache> dex_cache(down_cast<DexCache*>(AllocObjectArray<Object>(DexCache::LengthAsArray()))); |
| 967 | if (dex_cache.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 968 | return NULL; |
| 969 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 970 | SirtRef<String> location(intern_table_->InternStrong(dex_file.GetLocation().c_str())); |
| 971 | if (location.get() == NULL) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 972 | return NULL; |
| 973 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 974 | SirtRef<ObjectArray<String> > strings(AllocObjectArray<String>(dex_file.NumStringIds())); |
| 975 | if (strings.get() == NULL) { |
| 976 | return NULL; |
| 977 | } |
| 978 | SirtRef<ObjectArray<Class> > types(AllocClassArray(dex_file.NumTypeIds())); |
| 979 | if (types.get() == NULL) { |
| 980 | return NULL; |
| 981 | } |
| 982 | SirtRef<ObjectArray<Method> > methods(AllocObjectArray<Method>(dex_file.NumMethodIds())); |
| 983 | if (methods.get() == NULL) { |
| 984 | return NULL; |
| 985 | } |
| 986 | SirtRef<ObjectArray<Field> > fields(AllocObjectArray<Field>(dex_file.NumFieldIds())); |
| 987 | if (fields.get() == NULL) { |
| 988 | return NULL; |
| 989 | } |
| 990 | SirtRef<CodeAndDirectMethods> code_and_direct_methods(AllocCodeAndDirectMethods(dex_file.NumMethodIds())); |
| 991 | if (code_and_direct_methods.get() == NULL) { |
| 992 | return NULL; |
| 993 | } |
| 994 | SirtRef<ObjectArray<StaticStorageBase> > initialized_static_storage(AllocObjectArray<StaticStorageBase>(dex_file.NumTypeIds())); |
| 995 | if (initialized_static_storage.get() == NULL) { |
| 996 | return NULL; |
| 997 | } |
| 998 | |
| 999 | dex_cache->Init(location.get(), |
| 1000 | strings.get(), |
| 1001 | types.get(), |
| 1002 | methods.get(), |
| 1003 | fields.get(), |
| 1004 | code_and_direct_methods.get(), |
| 1005 | initialized_static_storage.get()); |
| 1006 | return dex_cache.get(); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1007 | } |
| 1008 | |
Brian Carlstrom | 9cc262e | 2011-08-28 12:45:30 -0700 | [diff] [blame] | 1009 | CodeAndDirectMethods* ClassLinker::AllocCodeAndDirectMethods(size_t length) { |
| 1010 | return down_cast<CodeAndDirectMethods*>(IntArray::Alloc(CodeAndDirectMethods::LengthAsArray(length))); |
Brian Carlstrom | 83db772 | 2011-08-26 17:32:56 -0700 | [diff] [blame] | 1011 | } |
| 1012 | |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1013 | InterfaceEntry* ClassLinker::AllocInterfaceEntry(Class* interface) { |
| 1014 | DCHECK(interface->IsInterface()); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1015 | SirtRef<ObjectArray<Object> > array(AllocObjectArray<Object>(InterfaceEntry::LengthAsArray())); |
| 1016 | SirtRef<InterfaceEntry> interface_entry(down_cast<InterfaceEntry*>(array.get())); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1017 | interface_entry->SetInterface(interface); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1018 | return interface_entry.get(); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1019 | } |
| 1020 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1021 | Class* ClassLinker::AllocClass(Class* java_lang_Class, size_t class_size) { |
| 1022 | DCHECK_GE(class_size, sizeof(Class)); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1023 | SirtRef<Class> klass(Heap::AllocObject(java_lang_Class, class_size)->AsClass()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1024 | klass->SetPrimitiveType(Primitive::kPrimNot); // default to not being primitive |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1025 | klass->SetClassSize(class_size); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1026 | return klass.get(); |
Brian Carlstrom | 75cb3b4 | 2011-07-28 02:13:36 -0700 | [diff] [blame] | 1027 | } |
| 1028 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1029 | Class* ClassLinker::AllocClass(size_t class_size) { |
| 1030 | return AllocClass(GetClassRoot(kJavaLangClass), class_size); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1031 | } |
| 1032 | |
Jesse Wilson | 35baaab | 2011-08-10 16:18:03 -0400 | [diff] [blame] | 1033 | Field* ClassLinker::AllocField() { |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 1034 | return down_cast<Field*>(GetClassRoot(kJavaLangReflectField)->AllocObject()); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 1035 | } |
| 1036 | |
| 1037 | Method* ClassLinker::AllocMethod() { |
Brian Carlstrom | 1f87008 | 2011-08-23 16:02:11 -0700 | [diff] [blame] | 1038 | return down_cast<Method*>(GetClassRoot(kJavaLangReflectMethod)->AllocObject()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1039 | } |
| 1040 | |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1041 | ObjectArray<StackTraceElement>* ClassLinker::AllocStackTraceElementArray(size_t length) { |
| 1042 | return ObjectArray<StackTraceElement>::Alloc( |
| 1043 | GetClassRoot(kJavaLangStackTraceElementArrayClass), |
| 1044 | length); |
| 1045 | } |
| 1046 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1047 | Class* EnsureResolved(Class* klass) { |
| 1048 | DCHECK(klass != NULL); |
| 1049 | // Wait for the class if it has not already been linked. |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1050 | Thread* self = Thread::Current(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1051 | if (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1052 | ObjectLock lock(klass); |
| 1053 | // Check for circular dependencies between classes. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1054 | if (!klass->IsResolved() && klass->GetClinitThreadId() == self->GetTid()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 1055 | self->ThrowNewException("Ljava/lang/ClassCircularityError;", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1056 | PrettyDescriptor(klass).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1057 | return NULL; |
| 1058 | } |
| 1059 | // Wait for the pending initialization to complete. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 1060 | while (!klass->IsResolved() && !klass->IsErroneous()) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1061 | lock.Wait(); |
| 1062 | } |
| 1063 | } |
| 1064 | if (klass->IsErroneous()) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1065 | ThrowEarlierClassFailure(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1066 | return NULL; |
| 1067 | } |
| 1068 | // Return the loaded class. No exceptions should be pending. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1069 | CHECK(klass->IsResolved()) << PrettyClass(klass); |
| 1070 | CHECK(!self->IsExceptionPending()) |
| 1071 | << PrettyClass(klass) << " " << PrettyTypeOf(self->GetException()); |
| 1072 | return klass; |
| 1073 | } |
| 1074 | |
Elliott Hughes | db7d5e9 | 2011-12-16 18:47:37 -0800 | [diff] [blame] | 1075 | Class* ClassLinker::FindSystemClass(const char* descriptor) { |
| 1076 | return FindClass(descriptor, NULL); |
| 1077 | } |
| 1078 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1079 | Class* ClassLinker::FindClass(const char* descriptor, const ClassLoader* class_loader) { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame^] | 1080 | DCHECK_NE(*descriptor, '\0') << "descriptor is empty string"; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1081 | Thread* self = Thread::Current(); |
| 1082 | DCHECK(self != NULL); |
| 1083 | CHECK(!self->IsExceptionPending()) << PrettyTypeOf(self->GetException()); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1084 | if (descriptor[1] == '\0') { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1085 | // only the descriptors of primitive types should be 1 character long, also avoid class lookup |
| 1086 | // for primitive classes that aren't backed by dex files. |
| 1087 | return FindPrimitiveClass(descriptor[0]); |
| 1088 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1089 | // Find the class in the loaded classes table. |
| 1090 | Class* klass = LookupClass(descriptor, class_loader); |
| 1091 | if (klass != NULL) { |
| 1092 | return EnsureResolved(klass); |
| 1093 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1094 | // Class is not yet loaded. |
Elliott Hughes | a7679b6 | 2012-01-24 17:15:23 -0800 | [diff] [blame] | 1095 | JNIEnv* env = self->GetJniEnv(); |
| 1096 | ScopedLocalRef<jthrowable> cause(env, NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1097 | if (descriptor[0] == '[') { |
| 1098 | return CreateArrayClass(descriptor, class_loader); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1099 | |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1100 | } else if (class_loader == NULL) { |
| 1101 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, boot_class_path_); |
| 1102 | if (pair.second != NULL) { |
| 1103 | return DefineClass(descriptor, NULL, *pair.first, *pair.second); |
| 1104 | } |
| 1105 | |
| 1106 | } else if (ClassLoader::UseCompileTimeClassPath()) { |
| 1107 | // first try the boot class path |
| 1108 | Class* system_class = FindSystemClass(descriptor); |
| 1109 | if (system_class != NULL) { |
| 1110 | return system_class; |
| 1111 | } |
| 1112 | CHECK(self->IsExceptionPending()); |
| 1113 | self->ClearException(); |
| 1114 | |
| 1115 | // next try the compile time class path |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1116 | const std::vector<const DexFile*>& class_path |
| 1117 | = ClassLoader::GetCompileTimeClassPath(class_loader); |
| 1118 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, class_path); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1119 | if (pair.second != NULL) { |
| 1120 | return DefineClass(descriptor, class_loader, *pair.first, *pair.second); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1121 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1122 | |
| 1123 | } else { |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1124 | std::string class_name_string(DescriptorToDot(descriptor)); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1125 | ScopedThreadStateChange(self, Thread::kNative); |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1126 | ScopedLocalRef<jclass> c(env, AddLocalReference<jclass>(env, GetClassRoot(kJavaLangClassLoader))); |
| 1127 | CHECK(c.get() != NULL); |
| 1128 | // TODO: cache method? |
| 1129 | jmethodID mid = env->GetMethodID(c.get(), "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;"); |
| 1130 | CHECK(mid != NULL); |
| 1131 | ScopedLocalRef<jobject> class_name_object(env, env->NewStringUTF(class_name_string.c_str())); |
| 1132 | if (class_name_object.get() == NULL) { |
| 1133 | return NULL; |
| 1134 | } |
| 1135 | ScopedLocalRef<jobject> class_loader_object(env, AddLocalReference<jobject>(env, class_loader)); |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1136 | ScopedLocalRef<jobject> result(env, env->CallObjectMethod(class_loader_object.get(), mid, |
| 1137 | class_name_object.get())); |
Elliott Hughes | a7679b6 | 2012-01-24 17:15:23 -0800 | [diff] [blame] | 1138 | cause.reset(env->ExceptionOccurred()); |
| 1139 | if (cause.get() != NULL) { |
| 1140 | env->ExceptionClear(); |
| 1141 | // Failed to find class, so fall-through to throw NCDFE. |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1142 | } else if (result.get() == NULL) { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1143 | // broken loader - throw NPE to be compatible with Dalvik |
| 1144 | ThrowNullPointerException("ClassLoader.loadClass returned null for %s", |
| 1145 | class_name_string.c_str()); |
| 1146 | return NULL; |
Ian Rogers | 761bfa8 | 2012-01-11 10:14:05 -0800 | [diff] [blame] | 1147 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 1148 | // success, return Class* |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1149 | return Decode<Class*>(env, result.get()); |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1150 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1151 | } |
| 1152 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1153 | ThrowNoClassDefFoundError("Class %s not found", PrintableString(StringPiece(descriptor)).c_str()); |
Elliott Hughes | a7679b6 | 2012-01-24 17:15:23 -0800 | [diff] [blame] | 1154 | if (cause.get() != NULL) { |
| 1155 | // Initialize the cause of the NCDFE. |
| 1156 | ScopedLocalRef<jthrowable> ncdfe(env, env->ExceptionOccurred()); |
| 1157 | env->ExceptionClear(); |
Elliott Hughes | 844f9a0 | 2012-01-24 20:19:58 -0800 | [diff] [blame] | 1158 | static jmethodID initCause_mid = env->GetMethodID(env->FindClass("java/lang/Throwable"), "initCause", "(Ljava/lang/Throwable;)Ljava/lang/Throwable;"); |
Elliott Hughes | a7679b6 | 2012-01-24 17:15:23 -0800 | [diff] [blame] | 1159 | env->CallObjectMethod(ncdfe.get(), initCause_mid, cause.get()); |
| 1160 | env->Throw(ncdfe.get()); |
| 1161 | } |
Jesse Wilson | 47daf87 | 2011-11-23 11:42:45 -0500 | [diff] [blame] | 1162 | return NULL; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1163 | } |
| 1164 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1165 | Class* ClassLinker::DefineClass(const StringPiece& descriptor, |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1166 | const ClassLoader* class_loader, |
| 1167 | const DexFile& dex_file, |
| 1168 | const DexFile::ClassDef& dex_class_def) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1169 | SirtRef<Class> klass(NULL); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1170 | // Load the class from the dex file. |
| 1171 | if (!init_done_) { |
| 1172 | // finish up init of hand crafted class_roots_ |
| 1173 | if (descriptor == "Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1174 | klass.reset(GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1175 | } else if (descriptor == "Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1176 | klass.reset(GetClassRoot(kJavaLangClass)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1177 | } else if (descriptor == "Ljava/lang/String;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1178 | klass.reset(GetClassRoot(kJavaLangString)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1179 | } else if (descriptor == "Ljava/lang/reflect/Constructor;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1180 | klass.reset(GetClassRoot(kJavaLangReflectConstructor)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1181 | } else if (descriptor == "Ljava/lang/reflect/Field;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1182 | klass.reset(GetClassRoot(kJavaLangReflectField)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1183 | } else if (descriptor == "Ljava/lang/reflect/Method;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1184 | klass.reset(GetClassRoot(kJavaLangReflectMethod)); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1185 | } else { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1186 | klass.reset(AllocClass(SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1187 | } |
| 1188 | } else { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1189 | klass.reset(AllocClass(SizeOfClass(dex_file, dex_class_def))); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1190 | } |
| 1191 | klass->SetDexCache(FindDexCache(dex_file)); |
| 1192 | LoadClass(dex_file, dex_class_def, klass, class_loader); |
| 1193 | // Check for a pending exception during load |
| 1194 | Thread* self = Thread::Current(); |
| 1195 | if (self->IsExceptionPending()) { |
| 1196 | return NULL; |
| 1197 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1198 | ObjectLock lock(klass.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1199 | klass->SetClinitThreadId(self->GetTid()); |
| 1200 | // Add the newly loaded class to the loaded classes table. |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1201 | Class* existing = InsertClass(descriptor, klass.get(), false); |
| 1202 | if (existing != NULL) { |
| 1203 | // We failed to insert because we raced with another thread. |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1204 | klass->SetClinitThreadId(0); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1205 | klass.reset(existing); |
| 1206 | return EnsureResolved(klass.get()); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1207 | } |
| 1208 | // Finish loading (if necessary) by finding parents |
| 1209 | CHECK(!klass->IsLoaded()); |
| 1210 | if (!LoadSuperAndInterfaces(klass, dex_file)) { |
| 1211 | // Loading failed. |
| 1212 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1213 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1214 | lock.NotifyAll(); |
| 1215 | return NULL; |
| 1216 | } |
| 1217 | CHECK(klass->IsLoaded()); |
| 1218 | // Link the class (if necessary) |
| 1219 | CHECK(!klass->IsResolved()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1220 | if (!LinkClass(klass, NULL)) { |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1221 | // Linking failed. |
| 1222 | CHECK(self->IsExceptionPending()); |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1223 | klass->SetStatus(Class::kStatusError); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1224 | lock.NotifyAll(); |
| 1225 | return NULL; |
| 1226 | } |
| 1227 | CHECK(klass->IsResolved()); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 1228 | |
| 1229 | /* |
| 1230 | * We send CLASS_PREPARE events to the debugger from here. The |
| 1231 | * definition of "preparation" is creating the static fields for a |
| 1232 | * class and initializing them to the standard default values, but not |
| 1233 | * executing any code (that comes later, during "initialization"). |
| 1234 | * |
| 1235 | * We did the static preparation in LinkClass. |
| 1236 | * |
| 1237 | * The class has been prepared and resolved but possibly not yet verified |
| 1238 | * at this point. |
| 1239 | */ |
| 1240 | Dbg::PostClassPrepare(klass.get()); |
| 1241 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1242 | return klass.get(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1243 | } |
| 1244 | |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1245 | // Precomputes size that will be needed for Class, matching LinkStaticFields |
| 1246 | size_t ClassLinker::SizeOfClass(const DexFile& dex_file, |
| 1247 | const DexFile::ClassDef& dex_class_def) { |
| 1248 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1249 | size_t num_ref = 0; |
| 1250 | size_t num_32 = 0; |
| 1251 | size_t num_64 = 0; |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1252 | if (class_data != NULL) { |
| 1253 | for (ClassDataItemIterator it(dex_file, class_data); it.HasNextStaticField(); it.Next()) { |
| 1254 | const DexFile::FieldId& field_id = dex_file.GetFieldId(it.GetMemberIndex()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1255 | const char* descriptor = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1256 | char c = descriptor[0]; |
| 1257 | if (c == 'L' || c == '[') { |
| 1258 | num_ref++; |
| 1259 | } else if (c == 'J' || c == 'D') { |
| 1260 | num_64++; |
| 1261 | } else { |
| 1262 | num_32++; |
| 1263 | } |
| 1264 | } |
| 1265 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 1266 | // start with generic class data |
| 1267 | size_t size = sizeof(Class); |
| 1268 | // follow with reference fields which must be contiguous at start |
| 1269 | size += (num_ref * sizeof(uint32_t)); |
| 1270 | // if there are 64-bit fields to add, make sure they are aligned |
| 1271 | if (num_64 != 0 && size != RoundUp(size, 8)) { // for 64-bit alignment |
| 1272 | if (num_32 != 0) { |
| 1273 | // use an available 32-bit field for padding |
| 1274 | num_32--; |
| 1275 | } |
| 1276 | size += sizeof(uint32_t); // either way, we are adding a word |
| 1277 | DCHECK_EQ(size, RoundUp(size, 8)); |
| 1278 | } |
| 1279 | // tack on any 64-bit fields now that alignment is assured |
| 1280 | size += (num_64 * sizeof(uint64_t)); |
| 1281 | // tack on any remaining 32-bit fields |
| 1282 | size += (num_32 * sizeof(uint32_t)); |
| 1283 | return size; |
| 1284 | } |
| 1285 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1286 | void LinkCode(SirtRef<Method>& method, const OatFile::OatClass* oat_class, uint32_t method_index) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1287 | // Every kind of method should at least get an invoke stub from the oat_method. |
| 1288 | // non-abstract methods also get their code pointers. |
| 1289 | const OatFile::OatMethod oat_method = oat_class->GetOatMethod(method_index); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1290 | oat_method.LinkMethodPointers(method.get()); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1291 | |
| 1292 | if (method->IsAbstract()) { |
| 1293 | method->SetCode(Runtime::Current()->GetAbstractMethodErrorStubArray()->GetData()); |
| 1294 | return; |
| 1295 | } |
| 1296 | if (method->IsNative()) { |
| 1297 | // unregistering restores the dlsym lookup stub |
| 1298 | method->UnregisterNative(); |
jeffhao | 26c0a1a | 2012-01-17 16:28:33 -0800 | [diff] [blame] | 1299 | } |
| 1300 | |
| 1301 | if (Runtime::Current()->IsMethodTracingActive()) { |
| 1302 | #if defined(__arm__) |
| 1303 | Trace* tracer = Runtime::Current()->GetTracer(); |
| 1304 | void* trace_stub = reinterpret_cast<void*>(art_trace_entry_from_code); |
| 1305 | tracer->SaveAndUpdateCode(method.get(), trace_stub); |
| 1306 | #else |
| 1307 | UNIMPLEMENTED(WARNING); |
| 1308 | #endif |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1309 | } |
| 1310 | } |
| 1311 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1312 | void ClassLinker::LoadClass(const DexFile& dex_file, |
| 1313 | const DexFile::ClassDef& dex_class_def, |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1314 | SirtRef<Class>& klass, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1315 | const ClassLoader* class_loader) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1316 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1317 | CHECK(klass->GetDexCache() != NULL); |
| 1318 | CHECK_EQ(Class::kStatusNotReady, klass->GetStatus()); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1319 | const char* descriptor = dex_file.GetClassDescriptor(dex_class_def); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1320 | CHECK(descriptor != NULL); |
| 1321 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1322 | klass->SetClass(GetClassRoot(kJavaLangClass)); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1323 | uint32_t access_flags = dex_class_def.access_flags_; |
Elliott Hughes | 582a7d1 | 2011-10-10 18:38:42 -0700 | [diff] [blame] | 1324 | // Make sure that none of our runtime-only flags are set. |
| 1325 | CHECK_EQ(access_flags & ~kAccJavaFlagsMask, 0U); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1326 | klass->SetAccessFlags(access_flags); |
| 1327 | klass->SetClassLoader(class_loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1328 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1329 | klass->SetStatus(Class::kStatusIdx); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1330 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1331 | klass->SetDexTypeIndex(dex_class_def.class_idx_); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1332 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1333 | // Load fields fields. |
| 1334 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
| 1335 | if (class_data == NULL) { |
| 1336 | return; // no fields or methods - for example a marker interface |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1337 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1338 | ClassDataItemIterator it(dex_file, class_data); |
| 1339 | if (it.NumStaticFields() != 0) { |
| 1340 | klass->SetSFields(AllocObjectArray<Field>(it.NumStaticFields())); |
| 1341 | } |
| 1342 | if (it.NumInstanceFields() != 0) { |
| 1343 | klass->SetIFields(AllocObjectArray<Field>(it.NumInstanceFields())); |
| 1344 | } |
| 1345 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
| 1346 | SirtRef<Field> sfield(AllocField()); |
| 1347 | klass->SetStaticField(i, sfield.get()); |
| 1348 | LoadField(dex_file, it, klass, sfield); |
| 1349 | } |
| 1350 | for (size_t i = 0; it.HasNextInstanceField(); i++, it.Next()) { |
| 1351 | SirtRef<Field> ifield(AllocField()); |
| 1352 | klass->SetInstanceField(i, ifield.get()); |
| 1353 | LoadField(dex_file, it, klass, ifield); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1354 | } |
| 1355 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1356 | UniquePtr<const OatFile::OatClass> oat_class; |
| 1357 | if (Runtime::Current()->IsStarted() && !ClassLoader::UseCompileTimeClassPath()) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1358 | const OatFile* oat_file = FindOatFileForDexFile(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1359 | if (oat_file != NULL) { |
| 1360 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
| 1361 | if (oat_dex_file != NULL) { |
| 1362 | uint32_t class_def_index; |
| 1363 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
| 1364 | CHECK(found) << descriptor; |
| 1365 | oat_class.reset(oat_dex_file->GetOatClass(class_def_index)); |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 1366 | CHECK(oat_class.get() != NULL) << descriptor; |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1367 | } |
| 1368 | } |
| 1369 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1370 | // Load methods. |
| 1371 | if (it.NumDirectMethods() != 0) { |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1372 | // TODO: append direct methods to class object |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1373 | klass->SetDirectMethods(AllocObjectArray<Method>(it.NumDirectMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1374 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1375 | if (it.NumVirtualMethods() != 0) { |
| 1376 | // TODO: append direct methods to class object |
| 1377 | klass->SetVirtualMethods(AllocObjectArray<Method>(it.NumVirtualMethods())); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1378 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1379 | size_t method_index = 0; |
| 1380 | for (size_t i = 0; it.HasNextDirectMethod(); i++, it.Next()) { |
| 1381 | SirtRef<Method> method(AllocMethod()); |
| 1382 | klass->SetDirectMethod(i, method.get()); |
| 1383 | LoadMethod(dex_file, it, klass, method); |
| 1384 | if (oat_class.get() != NULL) { |
| 1385 | LinkCode(method, oat_class.get(), method_index); |
| 1386 | } |
| 1387 | method_index++; |
| 1388 | } |
| 1389 | for (size_t i = 0; it.HasNextVirtualMethod(); i++, it.Next()) { |
| 1390 | SirtRef<Method> method(AllocMethod()); |
| 1391 | klass->SetVirtualMethod(i, method.get()); |
| 1392 | LoadMethod(dex_file, it, klass, method); |
| 1393 | if (oat_class.get() != NULL) { |
| 1394 | LinkCode(method, oat_class.get(), method_index); |
| 1395 | } |
| 1396 | method_index++; |
| 1397 | } |
| 1398 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1399 | } |
| 1400 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1401 | void ClassLinker::LoadField(const DexFile& dex_file, const ClassDataItemIterator& it, |
| 1402 | SirtRef<Class>& klass, SirtRef<Field>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1403 | uint32_t field_idx = it.GetMemberIndex(); |
| 1404 | dst->SetDexFieldIndex(field_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1405 | dst->SetDeclaringClass(klass.get()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1406 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1407 | } |
| 1408 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1409 | void ClassLinker::LoadMethod(const DexFile& dex_file, const ClassDataItemIterator& it, |
| 1410 | SirtRef<Class>& klass, SirtRef<Method>& dst) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1411 | uint32_t method_idx = it.GetMemberIndex(); |
| 1412 | dst->SetDexMethodIndex(method_idx); |
| 1413 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1414 | dst->SetDeclaringClass(klass.get()); |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1415 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1416 | |
| 1417 | StringPiece method_name(dex_file.GetMethodName(method_id)); |
| 1418 | if (method_name == "<init>") { |
Elliott Hughes | 8060925 | 2011-09-23 17:24:51 -0700 | [diff] [blame] | 1419 | dst->SetClass(GetClassRoot(kJavaLangReflectConstructor)); |
| 1420 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1421 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1422 | if (method_name == "finalize") { |
| 1423 | // Create the prototype for a signature of "()V" |
| 1424 | const DexFile::StringId* void_string_id = dex_file.FindStringId("V"); |
| 1425 | if (void_string_id != NULL) { |
| 1426 | const DexFile::TypeId* void_type_id = |
| 1427 | dex_file.FindTypeId(dex_file.GetIndexForStringId(*void_string_id)); |
| 1428 | if (void_type_id != NULL) { |
| 1429 | std::vector<uint16_t> no_args; |
| 1430 | const DexFile::ProtoId* finalizer_proto = |
| 1431 | dex_file.FindProtoId(dex_file.GetIndexForTypeId(*void_type_id), no_args); |
| 1432 | if (finalizer_proto != NULL) { |
| 1433 | // We have the prototype in the dex file |
| 1434 | if (klass->GetClassLoader() != NULL) { // All non-boot finalizer methods are flagged |
| 1435 | klass->SetFinalizable(); |
| 1436 | } else { |
| 1437 | StringPiece klass_descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 1438 | // The Enum class declares a "final" finalize() method to prevent subclasses from |
| 1439 | // introducing a finalizer. We don't want to set the finalizable flag for Enum or its |
| 1440 | // subclasses, so we exclude it here. |
| 1441 | // We also want to avoid setting the flag on Object, where we know that finalize() is |
| 1442 | // empty. |
| 1443 | if (klass_descriptor != "Ljava/lang/Object;" && |
| 1444 | klass_descriptor != "Ljava/lang/Enum;") { |
| 1445 | klass->SetFinalizable(); |
| 1446 | } |
| 1447 | } |
| 1448 | } |
| 1449 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 1450 | } |
Carl Shapiro | 419ec7b | 2011-08-03 14:48:33 -0700 | [diff] [blame] | 1451 | } |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1452 | dst->SetCodeItemOffset(it.GetMethodCodeItemOffset()); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 1453 | dst->SetAccessFlags(it.GetMemberAccessFlags()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1454 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1455 | dst->SetDexCacheStrings(klass->GetDexCache()->GetStrings()); |
| 1456 | dst->SetDexCacheResolvedTypes(klass->GetDexCache()->GetResolvedTypes()); |
| 1457 | dst->SetDexCacheResolvedMethods(klass->GetDexCache()->GetResolvedMethods()); |
| 1458 | dst->SetDexCacheResolvedFields(klass->GetDexCache()->GetResolvedFields()); |
| 1459 | dst->SetDexCacheCodeAndDirectMethods(klass->GetDexCache()->GetCodeAndDirectMethods()); |
| 1460 | dst->SetDexCacheInitializedStaticStorage(klass->GetDexCache()->GetInitializedStaticStorage()); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 1461 | } |
| 1462 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1463 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1464 | SirtRef<DexCache> dex_cache(AllocDexCache(dex_file)); |
| 1465 | AppendToBootClassPath(dex_file, dex_cache); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1466 | } |
| 1467 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1468 | void ClassLinker::AppendToBootClassPath(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
| 1469 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1470 | boot_class_path_.push_back(&dex_file); |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1471 | RegisterDexFile(dex_file, dex_cache); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1472 | } |
| 1473 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1474 | bool ClassLinker::IsDexFileRegisteredLocked(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1475 | dex_lock_.AssertHeld(); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1476 | for (size_t i = 0; i != dex_files_.size(); ++i) { |
| 1477 | if (dex_files_[i] == &dex_file) { |
| 1478 | return true; |
| 1479 | } |
| 1480 | } |
| 1481 | return false; |
Brian Carlstrom | a663ea5 | 2011-08-19 23:33:41 -0700 | [diff] [blame] | 1482 | } |
| 1483 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1484 | bool ClassLinker::IsDexFileRegistered(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1485 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 0691851 | 2011-10-16 23:39:12 -0700 | [diff] [blame] | 1486 | return IsDexFileRegisteredLocked(dex_file); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1487 | } |
| 1488 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1489 | void ClassLinker::RegisterDexFileLocked(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1490 | dex_lock_.AssertHeld(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1491 | CHECK(dex_cache.get() != NULL) << dex_file.GetLocation(); |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 1492 | CHECK(dex_cache->GetLocation()->Equals(dex_file.GetLocation())); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1493 | dex_files_.push_back(&dex_file); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1494 | dex_caches_.push_back(dex_cache.get()); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1495 | } |
| 1496 | |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1497 | void ClassLinker::RegisterDexFile(const DexFile& dex_file) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1498 | { |
| 1499 | MutexLock mu(dex_lock_); |
| 1500 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1501 | return; |
| 1502 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1503 | } |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1504 | // Don't alloc while holding the lock, since allocation may need to |
| 1505 | // suspend all threads and another thread may need the dex_lock_ to |
| 1506 | // get to a suspend point. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1507 | SirtRef<DexCache> dex_cache(AllocDexCache(dex_file)); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1508 | { |
| 1509 | MutexLock mu(dex_lock_); |
| 1510 | if (IsDexFileRegisteredLocked(dex_file)) { |
| 1511 | return; |
| 1512 | } |
| 1513 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1514 | } |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1515 | } |
| 1516 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1517 | void ClassLinker::RegisterDexFile(const DexFile& dex_file, SirtRef<DexCache>& dex_cache) { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1518 | MutexLock mu(dex_lock_); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 1519 | RegisterDexFileLocked(dex_file, dex_cache); |
| 1520 | } |
| 1521 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1522 | const DexFile& ClassLinker::FindDexFile(const DexCache* dex_cache) const { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 1523 | CHECK(dex_cache != NULL); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1524 | MutexLock mu(dex_lock_); |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 1525 | for (size_t i = 0; i != dex_caches_.size(); ++i) { |
| 1526 | if (dex_caches_[i] == dex_cache) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1527 | return *dex_files_[i]; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1528 | } |
| 1529 | } |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 1530 | CHECK(false) << "Failed to find DexFile for DexCache " << dex_cache->GetLocation()->ToModifiedUtf8(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1531 | return *dex_files_[-1]; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1532 | } |
| 1533 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1534 | DexCache* ClassLinker::FindDexCache(const DexFile& dex_file) const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1535 | MutexLock mu(dex_lock_); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 1536 | for (size_t i = 0; i != dex_files_.size(); ++i) { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 1537 | if (dex_files_[i] == &dex_file) { |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 1538 | return dex_caches_[i]; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1539 | } |
| 1540 | } |
Brian Carlstrom | 69b15fb | 2011-09-03 12:25:21 -0700 | [diff] [blame] | 1541 | CHECK(false) << "Failed to find DexCache for DexFile " << dex_file.GetLocation(); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 1542 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1543 | } |
| 1544 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1545 | Class* ClassLinker::InitializePrimitiveClass(Class* primitive_class, |
| 1546 | const char* descriptor, |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1547 | Primitive::Type type) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1548 | // TODO: deduce one argument from the other |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1549 | CHECK(primitive_class != NULL); |
| 1550 | primitive_class->SetAccessFlags(kAccPublic | kAccFinal | kAccAbstract); |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1551 | primitive_class->SetPrimitiveType(type); |
| 1552 | primitive_class->SetStatus(Class::kStatusInitialized); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1553 | Class* existing = InsertClass(descriptor, primitive_class, false); |
| 1554 | CHECK(existing == NULL) << "InitPrimitiveClass(" << descriptor << ") failed"; |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1555 | return primitive_class; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 1556 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1557 | |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1558 | // Create an array class (i.e. the class object for the array, not the |
| 1559 | // array itself). "descriptor" looks like "[C" or "[[[[B" or |
| 1560 | // "[Ljava/lang/String;". |
| 1561 | // |
| 1562 | // If "descriptor" refers to an array of primitives, look up the |
| 1563 | // primitive type's internally-generated class object. |
| 1564 | // |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1565 | // "class_loader" is the class loader of the class that's referring to |
| 1566 | // us. It's used to ensure that we're looking for the element type in |
| 1567 | // the right context. It does NOT become the class loader for the |
| 1568 | // array class; that always comes from the base element class. |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 1569 | // |
| 1570 | // Returns NULL with an exception raised on failure. |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1571 | Class* ClassLinker::CreateArrayClass(const std::string& descriptor, const ClassLoader* class_loader) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1572 | CHECK_EQ('[', descriptor[0]); |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1573 | |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1574 | // Identify the underlying component type |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1575 | Class* component_type = FindClass(descriptor.substr(1).c_str(), class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1576 | if (component_type == NULL) { |
Brian Carlstrom | 5b8e4c8 | 2011-09-18 01:38:59 -0700 | [diff] [blame] | 1577 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1578 | return NULL; |
| 1579 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1580 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1581 | // See if the component type is already loaded. Array classes are |
| 1582 | // always associated with the class loader of their underlying |
| 1583 | // element type -- an array of Strings goes with the loader for |
| 1584 | // java/lang/String -- so we need to look for it there. (The |
| 1585 | // caller should have checked for the existence of the class |
| 1586 | // before calling here, but they did so with *their* class loader, |
| 1587 | // not the component type's loader.) |
| 1588 | // |
| 1589 | // If we find it, the caller adds "loader" to the class' initiating |
| 1590 | // loader list, which should prevent us from going through this again. |
| 1591 | // |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1592 | // This call is unnecessary if "loader" and "component_type->GetClassLoader()" |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1593 | // are the same, because our caller (FindClass) just did the |
| 1594 | // lookup. (Even if we get this wrong we still have correct behavior, |
| 1595 | // because we effectively do this lookup again when we add the new |
| 1596 | // class to the hash table --- necessary because of possible races with |
| 1597 | // other threads.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1598 | if (class_loader != component_type->GetClassLoader()) { |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1599 | Class* new_class = LookupClass(descriptor.c_str(), component_type->GetClassLoader()); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1600 | if (new_class != NULL) { |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1601 | return new_class; |
| 1602 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1603 | } |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1604 | |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1605 | // Fill out the fields in the Class. |
| 1606 | // |
| 1607 | // It is possible to execute some methods against arrays, because |
| 1608 | // all arrays are subclasses of java_lang_Object_, so we need to set |
| 1609 | // up a vtable. We can just point at the one in java_lang_Object_. |
| 1610 | // |
| 1611 | // Array classes are simple enough that we don't need to do a full |
| 1612 | // link step. |
| 1613 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1614 | SirtRef<Class> new_class(NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1615 | if (!init_done_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1616 | // Classes that were hand created, ie not by FindSystemClass |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1617 | if (descriptor == "[Ljava/lang/Class;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1618 | new_class.reset(GetClassRoot(kClassArrayClass)); |
Elliott Hughes | 418d20f | 2011-09-22 14:00:39 -0700 | [diff] [blame] | 1619 | } else if (descriptor == "[Ljava/lang/Object;") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1620 | new_class.reset(GetClassRoot(kObjectArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1621 | } else if (descriptor == "[C") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1622 | new_class.reset(GetClassRoot(kCharArrayClass)); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1623 | } else if (descriptor == "[I") { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1624 | new_class.reset(GetClassRoot(kIntArrayClass)); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1625 | } |
| 1626 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1627 | if (new_class.get() == NULL) { |
| 1628 | new_class.reset(AllocClass(sizeof(Class))); |
| 1629 | if (new_class.get() == NULL) { |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1630 | return NULL; |
| 1631 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1632 | new_class->SetComponentType(component_type); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1633 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1634 | DCHECK(new_class->GetComponentType() != NULL); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1635 | Class* java_lang_Object = GetClassRoot(kJavaLangObject); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1636 | new_class->SetSuperClass(java_lang_Object); |
| 1637 | new_class->SetVTable(java_lang_Object->GetVTable()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1638 | new_class->SetPrimitiveType(Primitive::kPrimNot); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1639 | new_class->SetClassLoader(component_type->GetClassLoader()); |
| 1640 | new_class->SetStatus(Class::kStatusInitialized); |
| 1641 | // don't need to set new_class->SetObjectSize(..) |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1642 | // because Object::SizeOf delegates to Array::SizeOf |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1643 | |
| 1644 | |
| 1645 | // All arrays have java/lang/Cloneable and java/io/Serializable as |
| 1646 | // interfaces. We need to set that up here, so that stuff like |
| 1647 | // "instanceof" works right. |
| 1648 | // |
| 1649 | // Note: The GC could run during the call to FindSystemClass, |
| 1650 | // so we need to make sure the class object is GC-valid while we're in |
| 1651 | // there. Do this by clearing the interface list so the GC will just |
| 1652 | // think that the entries are null. |
| 1653 | |
| 1654 | |
| 1655 | // Use the single, global copies of "interfaces" and "iftable" |
| 1656 | // (remember not to free them for arrays). |
Elliott Hughes | 92f14b2 | 2011-10-06 12:29:54 -0700 | [diff] [blame] | 1657 | CHECK(array_iftable_ != NULL); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 1658 | new_class->SetIfTable(array_iftable_); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1659 | |
| 1660 | // Inherit access flags from the component type. Arrays can't be |
| 1661 | // used as a superclass or interface, so we want to add "final" |
| 1662 | // and remove "interface". |
| 1663 | // |
| 1664 | // Don't inherit any non-standard flags (e.g., kAccFinal) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1665 | // from component_type. We assume that the array class does not |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1666 | // override finalize(). |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 1667 | new_class->SetAccessFlags(((new_class->GetComponentType()->GetAccessFlags() & |
| 1668 | ~kAccInterface) | kAccFinal) & kAccJavaFlagsMask); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1669 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1670 | Class* existing = InsertClass(descriptor, new_class.get(), false); |
| 1671 | if (existing == NULL) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1672 | return new_class.get(); |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1673 | } |
| 1674 | // Another thread must have loaded the class after we |
| 1675 | // started but before we finished. Abandon what we've |
| 1676 | // done. |
| 1677 | // |
| 1678 | // (Yes, this happens.) |
| 1679 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1680 | return existing; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 1681 | } |
| 1682 | |
| 1683 | Class* ClassLinker::FindPrimitiveClass(char type) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1684 | switch (Primitive::GetType(type)) { |
| 1685 | case Primitive::kPrimByte: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1686 | return GetClassRoot(kPrimitiveByte); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1687 | case Primitive::kPrimChar: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1688 | return GetClassRoot(kPrimitiveChar); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1689 | case Primitive::kPrimDouble: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1690 | return GetClassRoot(kPrimitiveDouble); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1691 | case Primitive::kPrimFloat: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1692 | return GetClassRoot(kPrimitiveFloat); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1693 | case Primitive::kPrimInt: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1694 | return GetClassRoot(kPrimitiveInt); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1695 | case Primitive::kPrimLong: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1696 | return GetClassRoot(kPrimitiveLong); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1697 | case Primitive::kPrimShort: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1698 | return GetClassRoot(kPrimitiveShort); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1699 | case Primitive::kPrimBoolean: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1700 | return GetClassRoot(kPrimitiveBoolean); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1701 | case Primitive::kPrimVoid: |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1702 | return GetClassRoot(kPrimitiveVoid); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1703 | case Primitive::kPrimNot: |
| 1704 | break; |
Carl Shapiro | 744ad05 | 2011-08-06 15:53:36 -0700 | [diff] [blame] | 1705 | } |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 1706 | std::string printable_type(PrintableChar(type)); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1707 | ThrowNoClassDefFoundError("Not a primitive type: %s", printable_type.c_str()); |
Elliott Hughes | bd93599 | 2011-08-22 11:59:34 -0700 | [diff] [blame] | 1708 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1709 | } |
| 1710 | |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1711 | Class* ClassLinker::InsertClass(const StringPiece& descriptor, Class* klass, bool image_class) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 1712 | if (VLOG_IS_ON(class_linker)) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1713 | DexCache* dex_cache = klass->GetDexCache(); |
| 1714 | std::string source; |
| 1715 | if (dex_cache != NULL) { |
| 1716 | source += " from "; |
| 1717 | source += dex_cache->GetLocation()->ToModifiedUtf8(); |
| 1718 | } |
| 1719 | LOG(INFO) << "Loaded class " << descriptor << source; |
| 1720 | } |
Brian Carlstrom | 9cff8e1 | 2011-08-18 16:47:29 -0700 | [diff] [blame] | 1721 | size_t hash = StringPieceHash()(descriptor); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1722 | MutexLock mu(classes_lock_); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1723 | Table& classes = image_class ? image_classes_ : classes_; |
| 1724 | Class* existing = LookupClass(descriptor.data(), klass->GetClassLoader(), hash, classes); |
| 1725 | #ifndef NDEBUG |
| 1726 | // Check we don't have the class in the other table in error |
| 1727 | Table& other_classes = image_class ? classes_ : image_classes_; |
| 1728 | CHECK(LookupClass(descriptor.data(), klass->GetClassLoader(), hash, other_classes) == NULL); |
| 1729 | #endif |
| 1730 | if (existing != NULL) { |
| 1731 | return existing; |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 1732 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1733 | classes.insert(std::make_pair(hash, klass)); |
| 1734 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1735 | } |
| 1736 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1737 | bool ClassLinker::RemoveClass(const char* descriptor, const ClassLoader* class_loader) { |
| 1738 | size_t hash = Hash(descriptor); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1739 | MutexLock mu(classes_lock_); |
Elliott Hughes | e5448b5 | 2012-01-18 16:44:06 -0800 | [diff] [blame] | 1740 | typedef Table::iterator It; // TODO: C++0x auto |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1741 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1742 | ClassHelper kh; |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1743 | for (It it = classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1744 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1745 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1746 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1747 | classes_.erase(it); |
| 1748 | return true; |
| 1749 | } |
| 1750 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1751 | for (It it = image_classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1752 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1753 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1754 | if (strcmp(kh.GetDescriptor(), descriptor) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 1755 | image_classes_.erase(it); |
| 1756 | return true; |
| 1757 | } |
| 1758 | } |
| 1759 | return false; |
| 1760 | } |
| 1761 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1762 | Class* ClassLinker::LookupClass(const char* descriptor, const ClassLoader* class_loader) { |
| 1763 | size_t hash = Hash(descriptor); |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 1764 | MutexLock mu(classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 1765 | // TODO: determine if its better to search classes_ or image_classes_ first |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1766 | Class* klass = LookupClass(descriptor, class_loader, hash, classes_); |
| 1767 | if (klass != NULL) { |
| 1768 | return klass; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1769 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1770 | return LookupClass(descriptor, class_loader, hash, image_classes_); |
| 1771 | } |
| 1772 | |
| 1773 | Class* ClassLinker::LookupClass(const char* descriptor, const ClassLoader* class_loader, |
| 1774 | size_t hash, const Table& classes) { |
| 1775 | ClassHelper kh(NULL, this); |
| 1776 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 1777 | for (It it = classes.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 1778 | Class* klass = it->second; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1779 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1780 | if (strcmp(descriptor, kh.GetDescriptor()) == 0 && klass->GetClassLoader() == class_loader) { |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1781 | #ifndef NDEBUG |
| 1782 | for (++it; it != end && it->first == hash; ++it) { |
| 1783 | kh.ChangeClass(it->second); |
| 1784 | CHECK(!(strcmp(descriptor, kh.GetDescriptor()) == 0 && klass->GetClassLoader() == class_loader)) |
| 1785 | << PrettyClass(klass) << " " << klass << " " << klass->GetClassLoader() << " " |
| 1786 | << PrettyClass(it->second) << " " << it->second << " " << it->second->GetClassLoader(); |
| 1787 | } |
| 1788 | #endif |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 1789 | return klass; |
| 1790 | } |
| 1791 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 1792 | return NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1793 | } |
| 1794 | |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1795 | void ClassLinker::LookupClasses(const char* descriptor, std::vector<Class*>& classes) { |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1796 | classes.clear(); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1797 | size_t hash = Hash(descriptor); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1798 | MutexLock mu(classes_lock_); |
| 1799 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 1800 | // TODO: determine if its better to search classes_ or image_classes_ first |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1801 | ClassHelper kh(NULL, this); |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1802 | for (It it = classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1803 | Class* klass = it->second; |
| 1804 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1805 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1806 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1807 | } |
| 1808 | } |
Brian Carlstrom | 07bb855 | 2012-01-18 22:10:50 -0800 | [diff] [blame] | 1809 | for (It it = image_classes_.lower_bound(hash), end = classes_.end(); it != end && it->first == hash; ++it) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1810 | Class* klass = it->second; |
| 1811 | kh.ChangeClass(klass); |
Elliott Hughes | c3b77c7 | 2011-12-15 20:56:48 -0800 | [diff] [blame] | 1812 | if (strcmp(descriptor, kh.GetDescriptor()) == 0) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1813 | classes.push_back(klass); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1814 | } |
| 1815 | } |
| 1816 | } |
| 1817 | |
Ian Rogers | c20a83e | 2012-01-18 18:15:32 -0800 | [diff] [blame] | 1818 | #ifndef NDEBUG |
| 1819 | static void CheckMethodsHaveGcMaps(Class* klass) { |
| 1820 | if (!Runtime::Current()->IsStarted()) { |
| 1821 | return; |
| 1822 | } |
| 1823 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 1824 | Method* method = klass->GetDirectMethod(i); |
| 1825 | if (!method->IsNative() && !method->IsAbstract()) { |
| 1826 | CHECK(method->GetGcMap() != NULL) << PrettyMethod(method); |
| 1827 | } |
| 1828 | } |
| 1829 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 1830 | Method* method = klass->GetVirtualMethod(i); |
| 1831 | if (!method->IsNative() && !method->IsAbstract()) { |
| 1832 | CHECK(method->GetGcMap() != NULL) << PrettyMethod(method); |
| 1833 | } |
| 1834 | } |
| 1835 | } |
| 1836 | #else |
| 1837 | static void CheckMethodsHaveGcMaps(Class* klass) { |
| 1838 | } |
| 1839 | #endif |
| 1840 | |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 1841 | void ClassLinker::VerifyClass(Class* klass) { |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 1842 | // TODO: assert that the monitor on the Class is held |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 1843 | if (klass->IsVerified()) { |
| 1844 | return; |
| 1845 | } |
| 1846 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 1847 | CHECK_EQ(klass->GetStatus(), Class::kStatusResolved) << PrettyClass(klass); |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 1848 | klass->SetStatus(Class::kStatusVerifying); |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 1849 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 1850 | // Try to use verification information from oat file, otherwise do runtime verification |
| 1851 | const DexFile& dex_file = FindDexFile(klass->GetDexCache()); |
| 1852 | if (VerifyClassUsingOatFile(dex_file, klass) || verifier::DexVerifier::VerifyClass(klass)) { |
| 1853 | // Make sure all classes referenced by catch blocks are resolved |
| 1854 | ResolveClassExceptionHandlerTypes(dex_file, klass); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 1855 | klass->SetStatus(Class::kStatusVerified); |
Ian Rogers | c20a83e | 2012-01-18 18:15:32 -0800 | [diff] [blame] | 1856 | // Sanity check that a verified class has GC maps on all methods |
| 1857 | CheckMethodsHaveGcMaps(klass); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 1858 | } else { |
| 1859 | LOG(ERROR) << "Verification failed on class " << PrettyClass(klass); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 1860 | Thread* self = Thread::Current(); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 1861 | CHECK(!self->IsExceptionPending()) << PrettyTypeOf(self->GetException()) << PrettyClass(klass); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 1862 | self->ThrowNewExceptionF("Ljava/lang/VerifyError;", "Verification of %s failed", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1863 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 1864 | CHECK_EQ(klass->GetStatus(), Class::kStatusVerifying) << PrettyClass(klass); |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 1865 | klass->SetStatus(Class::kStatusError); |
jeffhao | 5cfd6fb | 2011-09-27 13:54:29 -0700 | [diff] [blame] | 1866 | } |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 1867 | } |
| 1868 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 1869 | bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, Class* klass) { |
| 1870 | if (!Runtime::Current()->IsStarted()) { |
| 1871 | return false; |
| 1872 | } |
| 1873 | if (ClassLoader::UseCompileTimeClassPath()) { |
| 1874 | return false; |
| 1875 | } |
| 1876 | const OatFile* oat_file = FindOatFileForDexFile(dex_file); |
| 1877 | if (oat_file == NULL) { |
| 1878 | return false; |
| 1879 | } |
| 1880 | const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation()); |
| 1881 | CHECK(oat_dex_file != NULL) << PrettyClass(klass); |
| 1882 | const char* descriptor = ClassHelper(klass).GetDescriptor(); |
| 1883 | uint32_t class_def_index; |
| 1884 | bool found = dex_file.FindClassDefIndex(descriptor, class_def_index); |
| 1885 | CHECK(found) << descriptor; |
| 1886 | UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(class_def_index)); |
| 1887 | CHECK(oat_class.get() != NULL) << descriptor; |
| 1888 | Class::Status status = oat_class->GetStatus(); |
| 1889 | if (status == Class::kStatusError) { |
| 1890 | ThrowEarlierClassFailure(klass); |
| 1891 | klass->SetVerifyErrorClass(Thread::Current()->GetException()->GetClass()); |
| 1892 | klass->SetStatus(Class::kStatusError); |
| 1893 | return true; |
| 1894 | } |
| 1895 | if (status == Class::kStatusVerified || status == Class::kStatusInitialized) { |
| 1896 | return true; |
| 1897 | } |
| 1898 | if (status == Class::kStatusNotReady) { |
| 1899 | return false; |
| 1900 | } |
| 1901 | LOG(FATAL) << "Unexpected class status: " << status; |
| 1902 | return false; |
| 1903 | } |
| 1904 | |
| 1905 | void ClassLinker::ResolveClassExceptionHandlerTypes(const DexFile& dex_file, Class* klass) { |
| 1906 | for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| 1907 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetDirectMethod(i)); |
| 1908 | } |
| 1909 | for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| 1910 | ResolveMethodExceptionHandlerTypes(dex_file, klass->GetVirtualMethod(i)); |
| 1911 | } |
| 1912 | } |
| 1913 | |
| 1914 | void ClassLinker::ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, Method* method) { |
| 1915 | // similar to DexVerifier::ScanTryCatchBlocks and dex2oat's ResolveExceptionsForMethod. |
| 1916 | const DexFile::CodeItem* code_item = dex_file.GetCodeItem(method->GetCodeItemOffset()); |
| 1917 | if (code_item == NULL) { |
| 1918 | return; // native or abstract method |
| 1919 | } |
| 1920 | if (code_item->tries_size_ == 0) { |
| 1921 | return; // nothing to process |
| 1922 | } |
| 1923 | const byte* handlers_ptr = DexFile::GetCatchHandlerData(*code_item, 0); |
| 1924 | uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_ptr); |
| 1925 | ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| 1926 | for (uint32_t idx = 0; idx < handlers_size; idx++) { |
| 1927 | CatchHandlerIterator iterator(handlers_ptr); |
| 1928 | for (; iterator.HasNext(); iterator.Next()) { |
| 1929 | // Ensure exception types are resolved so that they don't need resolution to be delivered, |
| 1930 | // unresolved exception types will be ignored by exception delivery |
| 1931 | if (iterator.GetHandlerTypeIndex() != DexFile::kDexNoIndex16) { |
| 1932 | Class* exception_type = linker->ResolveType(iterator.GetHandlerTypeIndex(), method); |
| 1933 | if (exception_type == NULL) { |
| 1934 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 1935 | Thread::Current()->ClearException(); |
| 1936 | } |
| 1937 | } |
| 1938 | } |
| 1939 | handlers_ptr = iterator.EndDataPointer(); |
| 1940 | } |
| 1941 | } |
| 1942 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1943 | static void CheckProxyConstructor(Method* constructor); |
| 1944 | static void CheckProxyMethod(Method* method, SirtRef<Method>& prototype); |
| 1945 | |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1946 | Class* ClassLinker::CreateProxyClass(String* name, ObjectArray<Class>* interfaces, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1947 | ClassLoader* loader, ObjectArray<Method>* methods, |
| 1948 | ObjectArray<ObjectArray<Class> >* throws) { |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1949 | SirtRef<Class> klass(AllocClass(GetClassRoot(kJavaLangClass), sizeof(SynthesizedProxyClass))); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1950 | CHECK(klass.get() != NULL); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1951 | DCHECK(klass->GetClass() != NULL); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1952 | klass->SetObjectSize(sizeof(Proxy)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1953 | klass->SetAccessFlags(kAccClassIsProxy | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1954 | klass->SetClassLoader(loader); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1955 | DCHECK_EQ(klass->GetPrimitiveType(), Primitive::kPrimNot); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1956 | klass->SetName(name); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 1957 | Class* proxy_class = GetClassRoot(kJavaLangReflectProxy); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1958 | klass->SetDexCache(proxy_class->GetDexCache()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1959 | |
| 1960 | klass->SetStatus(Class::kStatusIdx); |
| 1961 | |
| 1962 | klass->SetDexTypeIndex(DexFile::kDexNoIndex16); |
| 1963 | |
| 1964 | // Create static field that holds throws, instance fields are inherited |
| 1965 | klass->SetSFields(AllocObjectArray<Field>(1)); |
| 1966 | SirtRef<Field> sfield(AllocField()); |
| 1967 | klass->SetStaticField(0, sfield.get()); |
| 1968 | sfield->SetDexFieldIndex(-1); |
| 1969 | sfield->SetDeclaringClass(klass.get()); |
| 1970 | sfield->SetAccessFlags(kAccStatic | kAccPublic | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1971 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 1972 | // Proxies have 1 direct method, the constructor |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1973 | klass->SetDirectMethods(AllocObjectArray<Method>(1)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1974 | klass->SetDirectMethod(0, CreateProxyConstructor(klass, proxy_class)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1975 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 1976 | // Create virtual method using specified prototypes |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1977 | size_t num_virtual_methods = methods->GetLength(); |
| 1978 | klass->SetVirtualMethods(AllocObjectArray<Method>(num_virtual_methods)); |
| 1979 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1980 | SirtRef<Method> prototype(methods->Get(i)); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1981 | klass->SetVirtualMethod(i, CreateProxyMethod(klass, prototype)); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1982 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1983 | |
| 1984 | klass->SetSuperClass(proxy_class); // The super class is java.lang.reflect.Proxy |
| 1985 | klass->SetStatus(Class::kStatusLoaded); // Class is now effectively in the loaded state |
| 1986 | DCHECK(!Thread::Current()->IsExceptionPending()); |
| 1987 | |
| 1988 | // Link the fields and virtual methods, creating vtable and iftables |
| 1989 | if (!LinkClass(klass, interfaces)) { |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 1990 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 1991 | return NULL; |
| 1992 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 1993 | sfield->SetObject(NULL, throws); // initialize throws field |
| 1994 | klass->SetStatus(Class::kStatusInitialized); |
| 1995 | |
| 1996 | // sanity checks |
| 1997 | #ifndef NDEBUG |
| 1998 | bool debug = true; |
| 1999 | #else |
| 2000 | bool debug = false; |
| 2001 | #endif |
| 2002 | if (debug) { |
| 2003 | CHECK(klass->GetIFields() == NULL); |
| 2004 | CheckProxyConstructor(klass->GetDirectMethod(0)); |
| 2005 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
| 2006 | SirtRef<Method> prototype(methods->Get(i)); |
| 2007 | CheckProxyMethod(klass->GetVirtualMethod(i), prototype); |
| 2008 | } |
Brian Carlstrom | 8952189 | 2011-12-07 22:05:07 -0800 | [diff] [blame] | 2009 | std::string throws_field_name("java.lang.Class[][] "); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2010 | throws_field_name += name->ToModifiedUtf8(); |
| 2011 | throws_field_name += ".throws"; |
| 2012 | CHECK(PrettyField(klass->GetStaticField(0)) == throws_field_name); |
| 2013 | |
| 2014 | SynthesizedProxyClass* synth_proxy_class = down_cast<SynthesizedProxyClass*>(klass.get()); |
| 2015 | CHECK_EQ(synth_proxy_class->GetThrows(), throws); |
| 2016 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2017 | return klass.get(); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2018 | } |
| 2019 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2020 | std::string ClassLinker::GetDescriptorForProxy(const Class* proxy_class) { |
| 2021 | DCHECK(proxy_class->IsProxyClass()); |
| 2022 | String* name = proxy_class->GetName(); |
| 2023 | DCHECK(name != NULL); |
| 2024 | return DotToDescriptor(name->ToModifiedUtf8().c_str()); |
| 2025 | } |
| 2026 | |
| 2027 | |
| 2028 | Method* ClassLinker::CreateProxyConstructor(SirtRef<Class>& klass, Class* proxy_class) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2029 | // Create constructor for Proxy that must initialize h |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2030 | ObjectArray<Method>* proxy_direct_methods = proxy_class->GetDirectMethods(); |
Jesse Wilson | ecbce8f | 2011-10-21 19:57:36 -0400 | [diff] [blame] | 2031 | CHECK_EQ(proxy_direct_methods->GetLength(), 15); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2032 | Method* proxy_constructor = proxy_direct_methods->Get(2); |
| 2033 | // Clone the existing constructor of Proxy (our constructor would just invoke it so steal its |
| 2034 | // code_ too) |
| 2035 | Method* constructor = down_cast<Method*>(proxy_constructor->Clone()); |
| 2036 | // Make this constructor public and fix the class to be our Proxy version |
| 2037 | constructor->SetAccessFlags((constructor->GetAccessFlags() & ~kAccProtected) | kAccPublic); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2038 | constructor->SetDeclaringClass(klass.get()); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2039 | return constructor; |
| 2040 | } |
| 2041 | |
| 2042 | static void CheckProxyConstructor(Method* constructor) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2043 | CHECK(constructor->IsConstructor()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2044 | MethodHelper mh(constructor); |
| 2045 | CHECK_STREQ(mh.GetName(), "<init>"); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame^] | 2046 | CHECK_EQ(mh.GetSignature(), std::string("(Ljava/lang/reflect/InvocationHandler;)V")); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2047 | DCHECK(constructor->IsPublic()); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2048 | } |
| 2049 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2050 | Method* ClassLinker::CreateProxyMethod(SirtRef<Class>& klass, SirtRef<Method>& prototype) { |
| 2051 | // Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden |
| 2052 | // prototype method |
| 2053 | prototype->GetDexCacheResolvedMethods()->Set(prototype->GetDexMethodIndex(), prototype.get()); |
| 2054 | // 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] | 2055 | // as necessary |
| 2056 | Method* method = down_cast<Method*>(prototype->Clone()); |
| 2057 | |
| 2058 | // Set class to be the concrete proxy class and clear the abstract flag, modify exceptions to |
| 2059 | // the intersection of throw exceptions as defined in Proxy |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2060 | method->SetDeclaringClass(klass.get()); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2061 | method->SetAccessFlags((method->GetAccessFlags() & ~kAccAbstract) | kAccFinal); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2062 | |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2063 | // At runtime the method looks like a reference and argument saving method, clone the code |
| 2064 | // related parameters from this method. |
| 2065 | Method* refs_and_args = Runtime::Current()->GetCalleeSaveMethod(Runtime::kRefsAndArgs); |
| 2066 | method->SetCoreSpillMask(refs_and_args->GetCoreSpillMask()); |
| 2067 | method->SetFpSpillMask(refs_and_args->GetFpSpillMask()); |
| 2068 | method->SetFrameSizeInBytes(refs_and_args->GetFrameSizeInBytes()); |
| 2069 | method->SetCode(reinterpret_cast<void*>(art_proxy_invoke_handler)); |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2070 | return method; |
| 2071 | } |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2072 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2073 | static void CheckProxyMethod(Method* method, SirtRef<Method>& prototype) { |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2074 | // Basic sanity |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2075 | CHECK(!prototype->IsFinal()); |
| 2076 | CHECK(method->IsFinal()); |
| 2077 | CHECK(!method->IsAbstract()); |
| 2078 | MethodHelper mh(method); |
| 2079 | const char* method_name = mh.GetName(); |
| 2080 | const char* method_shorty = mh.GetShorty(); |
| 2081 | Class* method_return = mh.GetReturnType(); |
| 2082 | |
| 2083 | mh.ChangeMethod(prototype.get()); |
| 2084 | |
| 2085 | CHECK_STREQ(mh.GetName(), method_name); |
| 2086 | CHECK_STREQ(mh.GetShorty(), method_shorty); |
Ian Rogers | 466bb25 | 2011-10-14 03:29:56 -0700 | [diff] [blame] | 2087 | |
| 2088 | // More complex sanity - via dex cache |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2089 | CHECK_EQ(mh.GetReturnType(), method_return); |
Jesse Wilson | 95caa79 | 2011-10-12 18:14:17 -0400 | [diff] [blame] | 2090 | } |
| 2091 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2092 | bool ClassLinker::InitializeClass(Class* klass, bool can_run_clinit) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2093 | CHECK(klass->IsResolved() || klass->IsErroneous()) |
| 2094 | << PrettyClass(klass) << " is " << klass->GetStatus(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2095 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2096 | Thread* self = Thread::Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2097 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2098 | Method* clinit = NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2099 | { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2100 | // see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2101 | ObjectLock lock(klass); |
| 2102 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2103 | if (klass->GetStatus() == Class::kStatusInitialized) { |
| 2104 | return true; |
| 2105 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2106 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2107 | if (klass->IsErroneous()) { |
| 2108 | ThrowEarlierClassFailure(klass); |
| 2109 | return false; |
| 2110 | } |
| 2111 | |
| 2112 | if (klass->GetStatus() == Class::kStatusResolved) { |
jeffhao | 98eacac | 2011-09-14 16:11:53 -0700 | [diff] [blame] | 2113 | VerifyClass(klass); |
| 2114 | if (klass->GetStatus() != Class::kStatusVerified) { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2115 | CHECK(self->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2116 | return false; |
| 2117 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2118 | } |
| 2119 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2120 | clinit = klass->FindDeclaredDirectMethod("<clinit>", "()V"); |
| 2121 | if (clinit != NULL && !can_run_clinit) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2122 | // if the class has a <clinit> but we can't run it during compilation, |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2123 | // don't bother going to kStatusInitializing. We return true to maintain |
| 2124 | // the invariant that a false result implies there is a pending exception. |
| 2125 | return true; |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2126 | } |
| 2127 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2128 | // If the class is kStatusInitializing, either this thread is |
| 2129 | // initializing higher up the stack or another thread has beat us |
| 2130 | // to initializing and we need to wait. Either way, this |
| 2131 | // invocation of InitializeClass will not be responsible for |
| 2132 | // running <clinit> and will return. |
| 2133 | if (klass->GetStatus() == Class::kStatusInitializing) { |
Elliott Hughes | 005ab2e | 2011-09-11 17:15:31 -0700 | [diff] [blame] | 2134 | // We caught somebody else in the act; was it us? |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2135 | if (klass->GetClinitThreadId() == self->GetTid()) { |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2136 | // Yes. That's fine. Return so we can continue initializing. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2137 | return true; |
| 2138 | } |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2139 | // No. That's fine. Wait for another thread to finish initializing. |
| 2140 | return WaitForInitializeClass(klass, self, lock); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2141 | } |
| 2142 | |
| 2143 | if (!ValidateSuperClassDescriptors(klass)) { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2144 | CHECK(self->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2145 | klass->SetStatus(Class::kStatusError); |
| 2146 | return false; |
| 2147 | } |
| 2148 | |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2149 | DCHECK_EQ(klass->GetStatus(), Class::kStatusVerified) << PrettyClass(klass); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2150 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 2151 | klass->SetClinitThreadId(self->GetTid()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2152 | klass->SetStatus(Class::kStatusInitializing); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2153 | } |
| 2154 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2155 | uint64_t t0 = NanoTime(); |
| 2156 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2157 | if (!InitializeSuperClass(klass, can_run_clinit)) { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2158 | CHECK(self->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2159 | return false; |
| 2160 | } |
| 2161 | |
| 2162 | InitializeStaticFields(klass); |
| 2163 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2164 | if (clinit != NULL) { |
Elliott Hughes | f5ecf06 | 2011-09-06 17:37:59 -0700 | [diff] [blame] | 2165 | clinit->Invoke(self, NULL, NULL, NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2166 | } |
| 2167 | |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2168 | uint64_t t1 = NanoTime(); |
| 2169 | |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2170 | bool success = true; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2171 | { |
| 2172 | ObjectLock lock(klass); |
| 2173 | |
| 2174 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2175 | WrapExceptionInInitializer(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2176 | klass->SetStatus(Class::kStatusError); |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2177 | success = false; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2178 | } else { |
Elliott Hughes | 83df2ac | 2011-10-11 16:37:54 -0700 | [diff] [blame] | 2179 | RuntimeStats* global_stats = Runtime::Current()->GetStats(); |
| 2180 | RuntimeStats* thread_stats = self->GetStats(); |
| 2181 | ++global_stats->class_init_count; |
| 2182 | ++thread_stats->class_init_count; |
| 2183 | global_stats->class_init_time_ns += (t1 - t0); |
| 2184 | thread_stats->class_init_time_ns += (t1 - t0); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2185 | klass->SetStatus(Class::kStatusInitialized); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 2186 | if (VLOG_IS_ON(class_linker)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2187 | ClassHelper kh(klass); |
| 2188 | LOG(INFO) << "Initialized class " << kh.GetDescriptor() << " from " << kh.GetLocation(); |
Brian Carlstrom | ae82698 | 2011-11-09 01:33:42 -0800 | [diff] [blame] | 2189 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2190 | } |
| 2191 | lock.NotifyAll(); |
| 2192 | } |
Ian Rogers | bdfb1a5 | 2012-01-12 14:05:22 -0800 | [diff] [blame] | 2193 | return success; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2194 | } |
| 2195 | |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2196 | bool ClassLinker::WaitForInitializeClass(Class* klass, Thread* self, ObjectLock& lock) { |
| 2197 | while (true) { |
Elliott Hughes | d9cdfe9 | 2011-10-06 16:09:04 -0700 | [diff] [blame] | 2198 | CHECK(!self->IsExceptionPending()) << PrettyTypeOf(self->GetException()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2199 | lock.Wait(); |
| 2200 | |
| 2201 | // When we wake up, repeat the test for init-in-progress. If |
| 2202 | // there's an exception pending (only possible if |
| 2203 | // "interruptShouldThrow" was set), bail out. |
| 2204 | if (self->IsExceptionPending()) { |
Elliott Hughes | 4d0207c | 2011-10-03 19:14:34 -0700 | [diff] [blame] | 2205 | WrapExceptionInInitializer(); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2206 | klass->SetStatus(Class::kStatusError); |
| 2207 | return false; |
| 2208 | } |
| 2209 | // Spurious wakeup? Go back to waiting. |
| 2210 | if (klass->GetStatus() == Class::kStatusInitializing) { |
| 2211 | continue; |
| 2212 | } |
| 2213 | if (klass->IsErroneous()) { |
| 2214 | // The caller wants an exception, but it was thrown in a |
| 2215 | // different thread. Synthesize one here. |
Brian Carlstrom | df14324 | 2011-10-10 18:05:34 -0700 | [diff] [blame] | 2216 | ThrowNoClassDefFoundError("<clinit> failed for class %s; see exception in other thread", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2217 | PrettyDescriptor(klass).c_str()); |
Brian Carlstrom | d1422f8 | 2011-09-28 11:37:09 -0700 | [diff] [blame] | 2218 | return false; |
| 2219 | } |
| 2220 | if (klass->IsInitialized()) { |
| 2221 | return true; |
| 2222 | } |
| 2223 | LOG(FATAL) << "Unexpected class status. " << PrettyClass(klass) << " is " << klass->GetStatus(); |
| 2224 | } |
| 2225 | LOG(FATAL) << "Not Reached" << PrettyClass(klass); |
| 2226 | } |
| 2227 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2228 | bool ClassLinker::ValidateSuperClassDescriptors(const Class* klass) { |
| 2229 | if (klass->IsInterface()) { |
| 2230 | return true; |
| 2231 | } |
| 2232 | // begin with the methods local to the superclass |
| 2233 | if (klass->HasSuperClass() && |
| 2234 | klass->GetClassLoader() != klass->GetSuperClass()->GetClassLoader()) { |
| 2235 | const Class* super = klass->GetSuperClass(); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2236 | for (int i = super->GetVTable()->GetLength() - 1; i >= 0; --i) { |
| 2237 | const Method* method = klass->GetVTable()->Get(i); |
| 2238 | if (method != super->GetVTable()->Get(i) && |
| 2239 | !IsSameMethodSignatureInDifferentClassContexts(method, super, klass)) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2240 | ThrowLinkageError("Class %s method %s resolves differently in superclass %s", |
| 2241 | PrettyDescriptor(klass).c_str(), PrettyMethod(method).c_str(), |
| 2242 | PrettyDescriptor(super).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2243 | return false; |
| 2244 | } |
| 2245 | } |
| 2246 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2247 | for (int32_t i = 0; i < klass->GetIfTableCount(); ++i) { |
| 2248 | InterfaceEntry* interface_entry = klass->GetIfTable()->Get(i); |
| 2249 | Class* interface = interface_entry->GetInterface(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2250 | if (klass->GetClassLoader() != interface->GetClassLoader()) { |
| 2251 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2252 | const Method* method = interface_entry->GetMethodArray()->Get(j); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2253 | if (!IsSameMethodSignatureInDifferentClassContexts(method, interface, |
| 2254 | method->GetDeclaringClass())) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2255 | ThrowLinkageError("Class %s method %s resolves differently in interface %s", |
| 2256 | PrettyDescriptor(method->GetDeclaringClass()).c_str(), |
| 2257 | PrettyMethod(method).c_str(), |
| 2258 | PrettyDescriptor(interface).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2259 | return false; |
| 2260 | } |
| 2261 | } |
| 2262 | } |
| 2263 | } |
| 2264 | return true; |
| 2265 | } |
| 2266 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2267 | // Returns true if classes referenced by the signature of the method are the |
| 2268 | // same classes in klass1 as they are in klass2. |
| 2269 | bool ClassLinker::IsSameMethodSignatureInDifferentClassContexts(const Method* method, |
| 2270 | const Class* klass1, |
| 2271 | const Class* klass2) { |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2272 | if (klass1 == klass2) { |
| 2273 | return true; |
Brian Carlstrom | e10b697 | 2011-09-26 13:49:03 -0700 | [diff] [blame] | 2274 | } |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 2275 | const DexFile& dex_file = FindDexFile(method->GetDeclaringClass()->GetDexCache()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2276 | const DexFile::ProtoId& proto_id = |
| 2277 | dex_file.GetMethodPrototype(dex_file.GetMethodId(method->GetDexMethodIndex())); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2278 | for (DexFileParameterIterator it(dex_file, proto_id); it.HasNext(); it.Next()) { |
| 2279 | const char* descriptor = it.GetDescriptor(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2280 | if (descriptor == NULL) { |
| 2281 | break; |
| 2282 | } |
| 2283 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
| 2284 | // Found a non-primitive type. |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2285 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2286 | return false; |
| 2287 | } |
| 2288 | } |
| 2289 | } |
| 2290 | // Check the return type |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2291 | const char* descriptor = dex_file.GetReturnTypeDescriptor(proto_id); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2292 | if (descriptor[0] == 'L' || descriptor[0] == '[') { |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2293 | if (!IsSameDescriptorInDifferentClassContexts(descriptor, klass1, klass2)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2294 | return false; |
| 2295 | } |
| 2296 | } |
| 2297 | return true; |
| 2298 | } |
| 2299 | |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2300 | // Returns true if the descriptor resolves to the same class in the context of klass1 and klass2. |
| 2301 | bool ClassLinker::IsSameDescriptorInDifferentClassContexts(const char* descriptor, |
| 2302 | const Class* klass1, |
| 2303 | const Class* klass2) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2304 | CHECK(descriptor != NULL); |
| 2305 | CHECK(klass1 != NULL); |
| 2306 | CHECK(klass2 != NULL); |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2307 | if (klass1 == klass2) { |
| 2308 | return true; |
| 2309 | } |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 2310 | Class* found1 = FindClass(descriptor, klass1->GetClassLoader()); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2311 | if (found1 == NULL) { |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 2312 | Thread::Current()->ClearException(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2313 | } |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2314 | Class* found2 = FindClass(descriptor, klass2->GetClassLoader()); |
| 2315 | if (found2 == NULL) { |
| 2316 | Thread::Current()->ClearException(); |
| 2317 | } |
| 2318 | return found1 == found2; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2319 | } |
| 2320 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2321 | bool ClassLinker::InitializeSuperClass(Class* klass, bool can_run_clinit) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2322 | CHECK(klass != NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2323 | if (!klass->IsInterface() && klass->HasSuperClass()) { |
| 2324 | Class* super_class = klass->GetSuperClass(); |
| 2325 | if (super_class->GetStatus() != Class::kStatusInitialized) { |
| 2326 | CHECK(!super_class->IsInterface()); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2327 | Thread* self = Thread::Current(); |
| 2328 | klass->MonitorEnter(self); |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2329 | bool super_initialized = InitializeClass(super_class, can_run_clinit); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2330 | klass->MonitorExit(self); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2331 | // TODO: check for a pending exception |
| 2332 | if (!super_initialized) { |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2333 | if (!can_run_clinit) { |
| 2334 | // Don't set status to error when we can't run <clinit>. |
Brian Carlstrom | e7d856b | 2012-01-11 18:10:55 -0800 | [diff] [blame] | 2335 | CHECK_EQ(klass->GetStatus(), Class::kStatusInitializing) << PrettyClass(klass); |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2336 | klass->SetStatus(Class::kStatusVerified); |
| 2337 | return false; |
| 2338 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2339 | klass->SetStatus(Class::kStatusError); |
| 2340 | klass->NotifyAll(); |
| 2341 | return false; |
| 2342 | } |
| 2343 | } |
| 2344 | } |
| 2345 | return true; |
| 2346 | } |
| 2347 | |
Brian Carlstrom | 25c3325 | 2011-09-18 15:58:35 -0700 | [diff] [blame] | 2348 | bool ClassLinker::EnsureInitialized(Class* c, bool can_run_clinit) { |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2349 | CHECK(c != NULL); |
| 2350 | if (c->IsInitialized()) { |
| 2351 | return true; |
| 2352 | } |
| 2353 | |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2354 | Thread* self = Thread::Current(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2355 | ScopedThreadStateChange tsc(self, Thread::kRunnable); |
Ian Rogers | 595799e | 2012-01-11 17:32:51 -0800 | [diff] [blame] | 2356 | bool success = InitializeClass(c, can_run_clinit); |
| 2357 | if (!success) { |
| 2358 | CHECK(self->IsExceptionPending()); |
| 2359 | } |
| 2360 | return success; |
Elliott Hughes | f4c21c9 | 2011-08-19 17:31:31 -0700 | [diff] [blame] | 2361 | } |
| 2362 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2363 | void ClassLinker::ConstructFieldMap(const DexFile& dex_file, const DexFile::ClassDef& dex_class_def, |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2364 | Class* c, std::map<uint32_t, Field*>& field_map) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2365 | const ClassLoader* cl = c->GetClassLoader(); |
| 2366 | const byte* class_data = dex_file.GetClassData(dex_class_def); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2367 | ClassDataItemIterator it(dex_file, class_data); |
| 2368 | for (size_t i = 0; it.HasNextStaticField(); i++, it.Next()) { |
| 2369 | field_map[i] = ResolveField(dex_file, it.GetMemberIndex(), c->GetDexCache(), cl, true); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2370 | } |
| 2371 | } |
| 2372 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2373 | void ClassLinker::InitializeStaticFields(Class* klass) { |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2374 | size_t num_static_fields = klass->NumStaticFields(); |
| 2375 | if (num_static_fields == 0) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2376 | return; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2377 | } |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2378 | DexCache* dex_cache = klass->GetDexCache(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2379 | // TODO: this seems like the wrong check. do we really want !IsPrimitive && !IsArray? |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2380 | if (dex_cache == NULL) { |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2381 | return; |
| 2382 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2383 | ClassHelper kh(klass); |
| 2384 | const DexFile::ClassDef* dex_class_def = kh.GetClassDef(); |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 2385 | CHECK(dex_class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2386 | const DexFile& dex_file = kh.GetDexFile(); |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2387 | EncodedStaticFieldValueIterator it(dex_file, dex_cache, this, *dex_class_def); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2388 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 2389 | if (it.HasNext()) { |
| 2390 | // We reordered the fields, so we need to be able to map the field indexes to the right fields. |
| 2391 | std::map<uint32_t, Field*> field_map; |
| 2392 | ConstructFieldMap(dex_file, *dex_class_def, klass, field_map); |
| 2393 | for (size_t i = 0; it.HasNext(); i++, it.Next()) { |
| 2394 | it.ReadValueToField(field_map[i]); |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 2395 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2396 | } |
| 2397 | } |
| 2398 | |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2399 | bool ClassLinker::LinkClass(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2400 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2401 | if (!LinkSuperClass(klass)) { |
| 2402 | return false; |
| 2403 | } |
Ian Rogers | c2b4447 | 2011-12-14 21:17:17 -0800 | [diff] [blame] | 2404 | if (!LinkMethods(klass, interfaces)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2405 | return false; |
| 2406 | } |
| 2407 | if (!LinkInstanceFields(klass)) { |
| 2408 | return false; |
| 2409 | } |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2410 | if (!LinkStaticFields(klass)) { |
| 2411 | return false; |
| 2412 | } |
| 2413 | CreateReferenceInstanceOffsets(klass); |
| 2414 | CreateReferenceStaticOffsets(klass); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2415 | CHECK_EQ(Class::kStatusLoaded, klass->GetStatus()); |
| 2416 | klass->SetStatus(Class::kStatusResolved); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2417 | return true; |
| 2418 | } |
| 2419 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2420 | bool ClassLinker::LoadSuperAndInterfaces(SirtRef<Class>& klass, const DexFile& dex_file) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2421 | CHECK_EQ(Class::kStatusIdx, klass->GetStatus()); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2422 | StringPiece descriptor(dex_file.StringByTypeIdx(klass->GetDexTypeIndex())); |
| 2423 | const DexFile::ClassDef* class_def = dex_file.FindClassDef(descriptor); |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 2424 | CHECK(class_def != NULL); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2425 | uint16_t super_class_idx = class_def->superclass_idx_; |
| 2426 | if (super_class_idx != DexFile::kDexNoIndex16) { |
| 2427 | Class* super_class = ResolveType(dex_file, super_class_idx, klass.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2428 | if (super_class == NULL) { |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 2429 | DCHECK(Thread::Current()->IsExceptionPending()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2430 | return false; |
| 2431 | } |
Ian Rogers | be125a9 | 2012-01-11 15:19:49 -0800 | [diff] [blame] | 2432 | // Verify |
| 2433 | if (!klass->CanAccess(super_class)) { |
| 2434 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2435 | "Class %s extended by class %s is inaccessible", |
| 2436 | PrettyDescriptor(super_class).c_str(), |
| 2437 | PrettyDescriptor(klass.get()).c_str()); |
| 2438 | return false; |
| 2439 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2440 | klass->SetSuperClass(super_class); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2441 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2442 | const DexFile::TypeList* interfaces = dex_file.GetInterfacesList(*class_def); |
| 2443 | if (interfaces != NULL) { |
| 2444 | for (size_t i = 0; i < interfaces->Size(); i++) { |
| 2445 | uint16_t idx = interfaces->GetTypeItem(i).type_idx_; |
| 2446 | Class* interface = ResolveType(dex_file, idx, klass.get()); |
| 2447 | if (interface == NULL) { |
| 2448 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 2449 | return false; |
| 2450 | } |
| 2451 | // Verify |
| 2452 | if (!klass->CanAccess(interface)) { |
| 2453 | // TODO: the RI seemed to ignore this in my testing. |
| 2454 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
| 2455 | "Interface %s implemented by class %s is inaccessible", |
| 2456 | PrettyDescriptor(interface).c_str(), |
| 2457 | PrettyDescriptor(klass.get()).c_str()); |
| 2458 | return false; |
| 2459 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2460 | } |
| 2461 | } |
Brian Carlstrom | 74eb46a | 2011-08-02 20:10:14 -0700 | [diff] [blame] | 2462 | // Mark the class as loaded. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2463 | klass->SetStatus(Class::kStatusLoaded); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2464 | return true; |
| 2465 | } |
| 2466 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2467 | bool ClassLinker::LinkSuperClass(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2468 | CHECK(!klass->IsPrimitive()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2469 | Class* super = klass->GetSuperClass(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2470 | if (klass.get() == GetClassRoot(kJavaLangObject)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2471 | if (super != NULL) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2472 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/ClassFormatError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2473 | "java.lang.Object must not have a superclass"); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2474 | return false; |
| 2475 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2476 | return true; |
| 2477 | } |
| 2478 | if (super == NULL) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2479 | ThrowLinkageError("No superclass defined for class %s", PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2480 | return false; |
| 2481 | } |
| 2482 | // Verify |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2483 | if (super->IsFinal() || super->IsInterface()) { |
Ian Rogers | 5fc5a0c | 2011-12-13 10:39:49 -0800 | [diff] [blame] | 2484 | Thread* thread = Thread::Current(); |
| 2485 | thread->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2486 | "Superclass %s of %s is %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2487 | PrettyDescriptor(super).c_str(), |
| 2488 | PrettyDescriptor(klass.get()).c_str(), |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2489 | super->IsFinal() ? "declared final" : "an interface"); |
Ian Rogers | 5fc5a0c | 2011-12-13 10:39:49 -0800 | [diff] [blame] | 2490 | klass->SetVerifyErrorClass(thread->GetException()->GetClass()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2491 | return false; |
| 2492 | } |
| 2493 | if (!klass->CanAccess(super)) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2494 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2495 | "Superclass %s is inaccessible by %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2496 | PrettyDescriptor(super).c_str(), |
| 2497 | PrettyDescriptor(klass.get()).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2498 | return false; |
| 2499 | } |
Elliott Hughes | 20cde90 | 2011-10-04 17:37:27 -0700 | [diff] [blame] | 2500 | |
| 2501 | // Inherit kAccClassIsFinalizable from the superclass in case this class doesn't override finalize. |
| 2502 | if (super->IsFinalizable()) { |
| 2503 | klass->SetFinalizable(); |
| 2504 | } |
| 2505 | |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 2506 | // Inherit reference flags (if any) from the superclass. |
| 2507 | int reference_flags = (super->GetAccessFlags() & kAccReferenceFlagsMask); |
| 2508 | if (reference_flags != 0) { |
| 2509 | klass->SetAccessFlags(klass->GetAccessFlags() | reference_flags); |
| 2510 | } |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2511 | // Disallow custom direct subclasses of java.lang.ref.Reference. |
Elliott Hughes | bf61ba3 | 2011-10-11 10:53:09 -0700 | [diff] [blame] | 2512 | if (init_done_ && super == GetClassRoot(kJavaLangRefReference)) { |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2513 | ThrowLinkageError("Class %s attempts to subclass java.lang.ref.Reference, which is not allowed", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2514 | PrettyDescriptor(klass.get()).c_str()); |
Elliott Hughes | 72ee0ae | 2011-10-10 17:31:28 -0700 | [diff] [blame] | 2515 | return false; |
| 2516 | } |
Elliott Hughes | 2da5036 | 2011-10-10 16:57:08 -0700 | [diff] [blame] | 2517 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2518 | #ifndef NDEBUG |
| 2519 | // Ensure super classes are fully resolved prior to resolving fields.. |
| 2520 | while (super != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2521 | CHECK(super->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2522 | super = super->GetSuperClass(); |
| 2523 | } |
| 2524 | #endif |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2525 | return true; |
| 2526 | } |
| 2527 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2528 | // Populate the class vtable and itable. Compute return type indices. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2529 | bool ClassLinker::LinkMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2530 | if (klass->IsInterface()) { |
| 2531 | // No vtable. |
| 2532 | size_t count = klass->NumVirtualMethods(); |
| 2533 | if (!IsUint(16, count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 2534 | ThrowClassFormatError("Too many methods on interface: %zd", count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2535 | return false; |
| 2536 | } |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 2537 | for (size_t i = 0; i < count; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2538 | klass->GetVirtualMethodDuringLinking(i)->SetMethodIndex(i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2539 | } |
jeffhao | bdb7651 | 2011-09-07 11:43:16 -0700 | [diff] [blame] | 2540 | // Link interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2541 | return LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2542 | } else { |
Elliott Hughes | bc258fa | 2011-10-06 14:45:21 -0700 | [diff] [blame] | 2543 | // Link virtual and interface method tables |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2544 | return LinkVirtualMethods(klass) && LinkInterfaceMethods(klass, interfaces); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2545 | } |
| 2546 | return true; |
| 2547 | } |
| 2548 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2549 | bool ClassLinker::LinkVirtualMethods(SirtRef<Class>& klass) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2550 | if (klass->HasSuperClass()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2551 | uint32_t max_count = klass->NumVirtualMethods() + klass->GetSuperClass()->GetVTable()->GetLength(); |
| 2552 | size_t actual_count = klass->GetSuperClass()->GetVTable()->GetLength(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2553 | CHECK_LE(actual_count, max_count); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 2554 | // TODO: do not assign to the vtable field until it is fully constructed. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2555 | ObjectArray<Method>* vtable = klass->GetSuperClass()->GetVTable()->CopyOf(max_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2556 | // See if any of our virtual methods override the superclass. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2557 | MethodHelper local_mh(NULL, this); |
| 2558 | MethodHelper super_mh(NULL, this); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2559 | for (size_t i = 0; i < klass->NumVirtualMethods(); ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2560 | Method* local_method = klass->GetVirtualMethodDuringLinking(i); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2561 | local_mh.ChangeMethod(local_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2562 | size_t j = 0; |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2563 | for (; j < actual_count; ++j) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2564 | Method* super_method = vtable->Get(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2565 | super_mh.ChangeMethod(super_method); |
| 2566 | if (local_mh.HasSameNameAndSignature(&super_mh)) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2567 | // Verify |
| 2568 | if (super_method->IsFinal()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2569 | MethodHelper mh(local_method); |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2570 | ThrowLinkageError("Method %s.%s overrides final method in class %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2571 | PrettyDescriptor(klass.get()).c_str(), |
| 2572 | mh.GetName(), mh.GetDeclaringClassDescriptor()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2573 | return false; |
| 2574 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2575 | vtable->Set(j, local_method); |
| 2576 | local_method->SetMethodIndex(j); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2577 | break; |
| 2578 | } |
| 2579 | } |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame] | 2580 | if (j == actual_count) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2581 | // Not overriding, append. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2582 | vtable->Set(actual_count, local_method); |
| 2583 | local_method->SetMethodIndex(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2584 | actual_count += 1; |
| 2585 | } |
| 2586 | } |
| 2587 | if (!IsUint(16, actual_count)) { |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 2588 | ThrowClassFormatError("Too many methods defined on class: %zd", actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2589 | return false; |
| 2590 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2591 | // Shrink vtable if possible |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2592 | CHECK_LE(actual_count, max_count); |
| 2593 | if (actual_count < max_count) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2594 | vtable = vtable->CopyOf(actual_count); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2595 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2596 | klass->SetVTable(vtable); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2597 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2598 | CHECK(klass.get() == GetClassRoot(kJavaLangObject)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 2599 | uint32_t num_virtual_methods = klass->NumVirtualMethods(); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 2600 | if (!IsUint(16, num_virtual_methods)) { |
Elliott Hughes | e555dc0 | 2011-09-25 10:46:35 -0700 | [diff] [blame] | 2601 | ThrowClassFormatError("Too many methods: %d", num_virtual_methods); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2602 | return false; |
| 2603 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2604 | SirtRef<ObjectArray<Method> > vtable(AllocObjectArray<Method>(num_virtual_methods)); |
Brian Carlstrom | a40f9bc | 2011-07-26 21:26:07 -0700 | [diff] [blame] | 2605 | for (size_t i = 0; i < num_virtual_methods; ++i) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2606 | Method* virtual_method = klass->GetVirtualMethodDuringLinking(i); |
| 2607 | vtable->Set(i, virtual_method); |
| 2608 | virtual_method->SetMethodIndex(i & 0xFFFF); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2609 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2610 | klass->SetVTable(vtable.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2611 | } |
| 2612 | return true; |
| 2613 | } |
| 2614 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2615 | bool ClassLinker::LinkInterfaceMethods(SirtRef<Class>& klass, ObjectArray<Class>* interfaces) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2616 | size_t super_ifcount; |
| 2617 | if (klass->HasSuperClass()) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2618 | super_ifcount = klass->GetSuperClass()->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2619 | } else { |
| 2620 | super_ifcount = 0; |
| 2621 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 2622 | size_t ifcount = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2623 | ClassHelper kh(klass.get(), this); |
| 2624 | uint32_t num_interfaces = interfaces == NULL ? kh.NumInterfaces() : interfaces->GetLength(); |
| 2625 | ifcount += num_interfaces; |
| 2626 | for (size_t i = 0; i < num_interfaces; i++) { |
| 2627 | Class* interface = interfaces == NULL ? kh.GetInterface(i) : interfaces->Get(i); |
| 2628 | ifcount += interface->GetIfTableCount(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2629 | } |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 2630 | if (ifcount == 0) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2631 | // TODO: enable these asserts with klass status validation |
Elliott Hughes | f5a7a47 | 2011-10-07 14:31:02 -0700 | [diff] [blame] | 2632 | // DCHECK_EQ(klass->GetIfTableCount(), 0); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2633 | // DCHECK(klass->GetIfTable() == NULL); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2634 | return true; |
| 2635 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2636 | SirtRef<ObjectArray<InterfaceEntry> > iftable(AllocObjectArray<InterfaceEntry>(ifcount)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2637 | if (super_ifcount != 0) { |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2638 | ObjectArray<InterfaceEntry>* super_iftable = klass->GetSuperClass()->GetIfTable(); |
| 2639 | for (size_t i = 0; i < super_ifcount; i++) { |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 2640 | Class* super_interface = super_iftable->Get(i)->GetInterface(); |
| 2641 | iftable->Set(i, AllocInterfaceEntry(super_interface)); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2642 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2643 | } |
| 2644 | // Flatten the interface inheritance hierarchy. |
| 2645 | size_t idx = super_ifcount; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2646 | for (size_t i = 0; i < num_interfaces; i++) { |
| 2647 | Class* interface = interfaces == NULL ? kh.GetInterface(i) : interfaces->Get(i); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2648 | DCHECK(interface != NULL); |
| 2649 | if (!interface->IsInterface()) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2650 | ClassHelper ih(interface); |
Ian Rogers | 5fc5a0c | 2011-12-13 10:39:49 -0800 | [diff] [blame] | 2651 | Thread* thread = Thread::Current(); |
| 2652 | thread->ThrowNewExceptionF("Ljava/lang/IncompatibleClassChangeError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2653 | "Class %s implements non-interface class %s", |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2654 | PrettyDescriptor(klass.get()).c_str(), |
| 2655 | PrettyDescriptor(ih.GetDescriptor()).c_str()); |
Ian Rogers | 5fc5a0c | 2011-12-13 10:39:49 -0800 | [diff] [blame] | 2656 | klass->SetVerifyErrorClass(thread->GetException()->GetClass()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2657 | return false; |
| 2658 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 2659 | // Check if interface is already in iftable |
| 2660 | bool duplicate = false; |
| 2661 | for (size_t j = 0; j < idx; j++) { |
| 2662 | Class* existing_interface = iftable->Get(j)->GetInterface(); |
| 2663 | if (existing_interface == interface) { |
| 2664 | duplicate = true; |
| 2665 | break; |
| 2666 | } |
| 2667 | } |
| 2668 | if (!duplicate) { |
| 2669 | // Add this non-duplicate interface. |
| 2670 | iftable->Set(idx++, AllocInterfaceEntry(interface)); |
| 2671 | // Add this interface's non-duplicate super-interfaces. |
| 2672 | for (int32_t j = 0; j < interface->GetIfTableCount(); j++) { |
| 2673 | Class* super_interface = interface->GetIfTable()->Get(j)->GetInterface(); |
| 2674 | bool super_duplicate = false; |
| 2675 | for (size_t k = 0; k < idx; k++) { |
| 2676 | Class* existing_interface = iftable->Get(k)->GetInterface(); |
| 2677 | if (existing_interface == super_interface) { |
| 2678 | super_duplicate = true; |
| 2679 | break; |
| 2680 | } |
| 2681 | } |
| 2682 | if (!super_duplicate) { |
| 2683 | iftable->Set(idx++, AllocInterfaceEntry(super_interface)); |
| 2684 | } |
| 2685 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2686 | } |
| 2687 | } |
Ian Rogers | b52b01a | 2012-01-12 17:01:38 -0800 | [diff] [blame] | 2688 | // Shrink iftable in case duplicates were found |
| 2689 | if (idx < ifcount) { |
| 2690 | iftable.reset(iftable->CopyOf(idx)); |
| 2691 | ifcount = idx; |
| 2692 | } else { |
| 2693 | CHECK_EQ(idx, ifcount); |
| 2694 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2695 | klass->SetIfTable(iftable.get()); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2696 | |
| 2697 | // If we're an interface, we don't need the vtable pointers, so we're done. |
| 2698 | if (klass->IsInterface() /*|| super_ifcount == ifcount*/) { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2699 | return true; |
| 2700 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2701 | std::vector<Method*> miranda_list; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2702 | MethodHelper vtable_mh(NULL, this); |
| 2703 | MethodHelper interface_mh(NULL, this); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2704 | for (size_t i = 0; i < ifcount; ++i) { |
| 2705 | InterfaceEntry* interface_entry = iftable->Get(i); |
| 2706 | Class* interface = interface_entry->GetInterface(); |
| 2707 | ObjectArray<Method>* method_array = AllocObjectArray<Method>(interface->NumVirtualMethods()); |
| 2708 | interface_entry->SetMethodArray(method_array); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2709 | ObjectArray<Method>* vtable = klass->GetVTableDuringLinking(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2710 | for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) { |
| 2711 | Method* interface_method = interface->GetVirtualMethod(j); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2712 | interface_mh.ChangeMethod(interface_method); |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2713 | int32_t k; |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2714 | // For each method listed in the interface's method list, find the |
| 2715 | // matching method in our class's method list. We want to favor the |
| 2716 | // subclass over the superclass, which just requires walking |
| 2717 | // back from the end of the vtable. (This only matters if the |
| 2718 | // superclass defines a private method and this class redefines |
| 2719 | // it -- otherwise it would use the same vtable slot. In .dex files |
| 2720 | // those don't end up in the virtual method table, so it shouldn't |
| 2721 | // matter which direction we go. We walk it backward anyway.) |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2722 | for (k = vtable->GetLength() - 1; k >= 0; --k) { |
| 2723 | Method* vtable_method = vtable->Get(k); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2724 | vtable_mh.ChangeMethod(vtable_method); |
| 2725 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Carl Shapiro | 8860c0e | 2011-08-04 17:36:16 -0700 | [diff] [blame] | 2726 | if (!vtable_method->IsPublic()) { |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2727 | Thread::Current()->ThrowNewExceptionF("Ljava/lang/IllegalAccessError;", |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2728 | "Implementation not public: %s", PrettyMethod(vtable_method).c_str()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2729 | return false; |
| 2730 | } |
Brian Carlstrom | 4b620ff | 2011-09-11 01:11:01 -0700 | [diff] [blame] | 2731 | method_array->Set(j, vtable_method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2732 | break; |
| 2733 | } |
| 2734 | } |
| 2735 | if (k < 0) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2736 | SirtRef<Method> miranda_method(NULL); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2737 | for (size_t mir = 0; mir < miranda_list.size(); mir++) { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2738 | Method* mir_method = miranda_list[mir]; |
| 2739 | vtable_mh.ChangeMethod(mir_method); |
| 2740 | if (interface_mh.HasSameNameAndSignature(&vtable_mh)) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2741 | miranda_method.reset(miranda_list[mir]); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2742 | break; |
| 2743 | } |
| 2744 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2745 | if (miranda_method.get() == NULL) { |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2746 | // point the interface table at a phantom slot |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2747 | miranda_method.reset(AllocMethod()); |
| 2748 | memcpy(miranda_method.get(), interface_method, sizeof(Method)); |
| 2749 | miranda_list.push_back(miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2750 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2751 | method_array->Set(j, miranda_method.get()); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2752 | } |
| 2753 | } |
| 2754 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2755 | if (!miranda_list.empty()) { |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 2756 | int old_method_count = klass->NumVirtualMethods(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2757 | int new_method_count = old_method_count + miranda_list.size(); |
Brian Carlstrom | 27ec961 | 2011-09-19 20:20:38 -0700 | [diff] [blame] | 2758 | klass->SetVirtualMethods((old_method_count == 0) |
| 2759 | ? AllocObjectArray<Method>(new_method_count) |
| 2760 | : klass->GetVirtualMethods()->CopyOf(new_method_count)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2761 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2762 | ObjectArray<Method>* vtable = klass->GetVTableDuringLinking(); |
| 2763 | CHECK(vtable != NULL); |
| 2764 | int old_vtable_count = vtable->GetLength(); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2765 | int new_vtable_count = old_vtable_count + miranda_list.size(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2766 | vtable = vtable->CopyOf(new_vtable_count); |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2767 | for (size_t i = 0; i < miranda_list.size(); ++i) { |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 2768 | Method* method = miranda_list[i]; |
Ian Rogers | 9074b99 | 2011-10-26 17:41:55 -0700 | [diff] [blame] | 2769 | // Leave the declaring class alone as type indices are relative to it |
Brian Carlstrom | 92827a5 | 2011-10-10 15:50:01 -0700 | [diff] [blame] | 2770 | method->SetAccessFlags(method->GetAccessFlags() | kAccMiranda); |
| 2771 | method->SetMethodIndex(0xFFFF & (old_vtable_count + i)); |
| 2772 | klass->SetVirtualMethod(old_method_count + i, method); |
| 2773 | vtable->Set(old_vtable_count + i, method); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2774 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2775 | // TODO: do not assign to the vtable field until it is fully constructed. |
| 2776 | klass->SetVTable(vtable); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2777 | } |
Elliott Hughes | 4681c80 | 2011-09-25 18:04:37 -0700 | [diff] [blame] | 2778 | |
| 2779 | ObjectArray<Method>* vtable = klass->GetVTableDuringLinking(); |
| 2780 | for (int i = 0; i < vtable->GetLength(); ++i) { |
| 2781 | CHECK(vtable->Get(i) != NULL); |
| 2782 | } |
| 2783 | |
| 2784 | // klass->DumpClass(std::cerr, Class::kDumpClassFullDetail); |
| 2785 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2786 | return true; |
| 2787 | } |
| 2788 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2789 | bool ClassLinker::LinkInstanceFields(SirtRef<Class>& klass) { |
| 2790 | CHECK(klass.get() != NULL); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2791 | return LinkFields(klass, false); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2792 | } |
| 2793 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2794 | bool ClassLinker::LinkStaticFields(SirtRef<Class>& klass) { |
| 2795 | CHECK(klass.get() != NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2796 | size_t allocated_class_size = klass->GetClassSize(); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2797 | bool success = LinkFields(klass, true); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2798 | CHECK_EQ(allocated_class_size, klass->GetClassSize()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2799 | return success; |
| 2800 | } |
| 2801 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2802 | struct LinkFieldsComparator { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame^] | 2803 | explicit LinkFieldsComparator(FieldHelper* fh) : fh_(fh) {} |
Elliott Hughes | 3b6baaa | 2011-10-14 19:13:56 -0700 | [diff] [blame] | 2804 | bool operator()(const Field* field1, const Field* field2) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2805 | // First come reference fields, then 64-bit, and finally 32-bit |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2806 | fh_->ChangeField(field1); |
| 2807 | Primitive::Type type1 = fh_->GetTypeAsPrimitiveType(); |
| 2808 | fh_->ChangeField(field2); |
| 2809 | Primitive::Type type2 = fh_->GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2810 | bool isPrimitive1 = type1 != Primitive::kPrimNot; |
| 2811 | bool isPrimitive2 = type2 != Primitive::kPrimNot; |
| 2812 | bool is64bit1 = isPrimitive1 && (type1 == Primitive::kPrimLong || type1 == Primitive::kPrimDouble); |
| 2813 | bool is64bit2 = isPrimitive2 && (type2 == Primitive::kPrimLong || type2 == Primitive::kPrimDouble); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2814 | int order1 = (!isPrimitive1 ? 0 : (is64bit1 ? 1 : 2)); |
| 2815 | int order2 = (!isPrimitive2 ? 0 : (is64bit2 ? 1 : 2)); |
| 2816 | if (order1 != order2) { |
| 2817 | return order1 < order2; |
| 2818 | } |
| 2819 | |
| 2820 | // same basic group? then sort by string. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2821 | fh_->ChangeField(field1); |
| 2822 | StringPiece name1(fh_->GetName()); |
| 2823 | fh_->ChangeField(field2); |
| 2824 | StringPiece name2(fh_->GetName()); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2825 | return name1 < name2; |
| 2826 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2827 | |
| 2828 | FieldHelper* fh_; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2829 | }; |
| 2830 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2831 | bool ClassLinker::LinkFields(SirtRef<Class>& klass, bool is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2832 | size_t num_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2833 | is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2834 | |
| 2835 | ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2836 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2837 | |
| 2838 | // Initialize size and field_offset |
Brian Carlstrom | 693267a | 2011-09-06 09:25:34 -0700 | [diff] [blame] | 2839 | size_t size; |
| 2840 | MemberOffset field_offset(0); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2841 | if (is_static) { |
| 2842 | size = klass->GetClassSize(); |
| 2843 | field_offset = Class::FieldsOffset(); |
| 2844 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2845 | Class* super_class = klass->GetSuperClass(); |
| 2846 | if (super_class != NULL) { |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 2847 | CHECK(super_class->IsResolved()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2848 | field_offset = MemberOffset(super_class->GetObjectSize()); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2849 | } |
| 2850 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2851 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2852 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2853 | CHECK_EQ(num_fields == 0, fields == NULL); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2854 | |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2855 | // we want a relatively stable order so that adding new fields |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 2856 | // minimizes disruption of C++ version such as Class and Method. |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2857 | std::deque<Field*> grouped_and_sorted_fields; |
| 2858 | for (size_t i = 0; i < num_fields; i++) { |
| 2859 | grouped_and_sorted_fields.push_back(fields->Get(i)); |
| 2860 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2861 | FieldHelper fh(NULL, this); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2862 | std::sort(grouped_and_sorted_fields.begin(), |
| 2863 | grouped_and_sorted_fields.end(), |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2864 | LinkFieldsComparator(&fh)); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2865 | |
| 2866 | // References should be at the front. |
| 2867 | size_t current_field = 0; |
| 2868 | size_t num_reference_fields = 0; |
| 2869 | for (; current_field < num_fields; current_field++) { |
| 2870 | Field* field = grouped_and_sorted_fields.front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2871 | fh.ChangeField(field); |
| 2872 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2873 | bool isPrimitive = type != Primitive::kPrimNot; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2874 | if (isPrimitive) { |
| 2875 | break; // past last reference, move on to the next phase |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2876 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2877 | grouped_and_sorted_fields.pop_front(); |
| 2878 | num_reference_fields++; |
| 2879 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2880 | field->SetOffset(field_offset); |
| 2881 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2882 | } |
| 2883 | |
| 2884 | // Now we want to pack all of the double-wide fields together. If |
| 2885 | // we're not aligned, though, we want to shuffle one 32-bit field |
| 2886 | // 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] | 2887 | if (current_field != num_fields && !IsAligned<8>(field_offset.Uint32Value())) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2888 | for (size_t i = 0; i < grouped_and_sorted_fields.size(); i++) { |
| 2889 | Field* field = grouped_and_sorted_fields[i]; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2890 | fh.ChangeField(field); |
| 2891 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2892 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
| 2893 | if (type == Primitive::kPrimLong || type == Primitive::kPrimDouble) { |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2894 | continue; |
| 2895 | } |
| 2896 | fields->Set(current_field++, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2897 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2898 | // drop the consumed field |
| 2899 | grouped_and_sorted_fields.erase(grouped_and_sorted_fields.begin() + i); |
| 2900 | break; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2901 | } |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2902 | // whether we found a 32-bit field for padding or not, we advance |
| 2903 | field_offset = MemberOffset(field_offset.Uint32Value() + sizeof(uint32_t)); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2904 | } |
| 2905 | |
| 2906 | // Alignment is good, shuffle any double-wide fields forward, and |
| 2907 | // finish assigning field offsets to all fields. |
Elliott Hughes | 06b37d9 | 2011-10-16 11:51:29 -0700 | [diff] [blame] | 2908 | DCHECK(current_field == num_fields || IsAligned<8>(field_offset.Uint32Value())); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2909 | while (!grouped_and_sorted_fields.empty()) { |
| 2910 | Field* field = grouped_and_sorted_fields.front(); |
| 2911 | grouped_and_sorted_fields.pop_front(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2912 | fh.ChangeField(field); |
| 2913 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2914 | CHECK(type != Primitive::kPrimNot); // should only be working on primitive types |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2915 | fields->Set(current_field, field); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2916 | field->SetOffset(field_offset); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2917 | field_offset = MemberOffset(field_offset.Uint32Value() + |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2918 | ((type == Primitive::kPrimLong || type == Primitive::kPrimDouble) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2919 | ? sizeof(uint64_t) |
| 2920 | : sizeof(uint32_t))); |
| 2921 | current_field++; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2922 | } |
| 2923 | |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 2924 | // We lie to the GC about the java.lang.ref.Reference.referent field, so it doesn't scan it. |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2925 | std::string descriptor(ClassHelper(klass.get(), this).GetDescriptor()); |
| 2926 | if (!is_static && descriptor == "Ljava/lang/ref/Reference;") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 2927 | // We know there are no non-reference fields in the Reference classes, and we know |
| 2928 | // that 'referent' is alphabetically last, so this is easy... |
| 2929 | CHECK_EQ(num_reference_fields, num_fields); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2930 | fh.ChangeField(fields->Get(num_fields - 1)); |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame^] | 2931 | CHECK_STREQ(fh.GetName(), "referent"); |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 2932 | --num_reference_fields; |
| 2933 | } |
| 2934 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2935 | #ifndef NDEBUG |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2936 | // Make sure that all reference fields appear before |
| 2937 | // non-reference fields, and all double-wide fields are aligned. |
| 2938 | bool seen_non_ref = false; |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2939 | for (size_t i = 0; i < num_fields; i++) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2940 | Field* field = fields->Get(i); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2941 | if (false) { // enable to debug field layout |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2942 | LOG(INFO) << "LinkFields: " << (is_static ? "static" : "instance") |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2943 | << " class=" << PrettyClass(klass.get()) |
Brian Carlstrom | 65ca077 | 2011-09-24 16:03:08 -0700 | [diff] [blame] | 2944 | << " field=" << PrettyField(field) |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2945 | << " offset=" << field->GetField32(MemberOffset(Field::OffsetOffset()), false); |
| 2946 | } |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2947 | fh.ChangeField(field); |
| 2948 | Primitive::Type type = fh.GetTypeAsPrimitiveType(); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2949 | bool is_primitive = type != Primitive::kPrimNot; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2950 | if (descriptor == "Ljava/lang/ref/Reference;" && StringPiece(fh.GetName()) == "referent") { |
Elliott Hughes | adb460d | 2011-10-05 17:02:34 -0700 | [diff] [blame] | 2951 | is_primitive = true; // We lied above, so we have to expect a lie here. |
| 2952 | } |
| 2953 | if (is_primitive) { |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2954 | if (!seen_non_ref) { |
| 2955 | seen_non_ref = true; |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2956 | DCHECK_EQ(num_reference_fields, i); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2957 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2958 | } else { |
| 2959 | DCHECK(!seen_non_ref); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2960 | } |
| 2961 | } |
Brian Carlstrom | be97785 | 2011-07-19 14:54:54 -0700 | [diff] [blame] | 2962 | if (!seen_non_ref) { |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2963 | DCHECK_EQ(num_fields, num_reference_fields); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2964 | } |
| 2965 | #endif |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2966 | size = field_offset.Uint32Value(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2967 | // Update klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2968 | if (is_static) { |
| 2969 | klass->SetNumReferenceStaticFields(num_reference_fields); |
| 2970 | klass->SetClassSize(size); |
| 2971 | } else { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2972 | klass->SetNumReferenceInstanceFields(num_reference_fields); |
Brian Carlstrom | dbc0525 | 2011-09-09 01:59:59 -0700 | [diff] [blame] | 2973 | if (!klass->IsVariableSize()) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2974 | klass->SetObjectSize(size); |
| 2975 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2976 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2977 | return true; |
| 2978 | } |
| 2979 | |
| 2980 | // Set the bitmap of reference offsets, refOffsets, from the ifields |
| 2981 | // list. |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2982 | void ClassLinker::CreateReferenceInstanceOffsets(SirtRef<Class>& klass) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2983 | uint32_t reference_offsets = 0; |
| 2984 | Class* super_class = klass->GetSuperClass(); |
| 2985 | if (super_class != NULL) { |
| 2986 | reference_offsets = super_class->GetReferenceInstanceOffsets(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2987 | // If our superclass overflowed, we don't stand a chance. |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 2988 | if (reference_offsets == CLASS_WALK_SUPER) { |
| 2989 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2990 | return; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2991 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 2992 | } |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2993 | CreateReferenceOffsets(klass, false, reference_offsets); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2994 | } |
| 2995 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2996 | void ClassLinker::CreateReferenceStaticOffsets(SirtRef<Class>& klass) { |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 2997 | CreateReferenceOffsets(klass, true, 0); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 2998 | } |
| 2999 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 3000 | void ClassLinker::CreateReferenceOffsets(SirtRef<Class>& klass, bool is_static, |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3001 | uint32_t reference_offsets) { |
| 3002 | size_t num_reference_fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3003 | is_static ? klass->NumReferenceStaticFieldsDuringLinking() |
| 3004 | : klass->NumReferenceInstanceFieldsDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3005 | const ObjectArray<Field>* fields = |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3006 | is_static ? klass->GetSFields() : klass->GetIFields(); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3007 | // All of the fields that contain object references are guaranteed |
| 3008 | // to be at the beginning of the fields list. |
| 3009 | for (size_t i = 0; i < num_reference_fields; ++i) { |
| 3010 | // Note that byte_offset is the offset from the beginning of |
| 3011 | // object, not the offset into instance data |
| 3012 | const Field* field = fields->Get(i); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3013 | MemberOffset byte_offset = field->GetOffsetDuringLinking(); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3014 | CHECK_EQ(byte_offset.Uint32Value() & (CLASS_OFFSET_ALIGNMENT - 1), 0U); |
| 3015 | if (CLASS_CAN_ENCODE_OFFSET(byte_offset.Uint32Value())) { |
| 3016 | uint32_t new_bit = CLASS_BIT_FROM_OFFSET(byte_offset.Uint32Value()); |
Brian Carlstrom | 4873d46 | 2011-08-21 15:23:39 -0700 | [diff] [blame] | 3017 | CHECK_NE(new_bit, 0U); |
| 3018 | reference_offsets |= new_bit; |
| 3019 | } else { |
| 3020 | reference_offsets = CLASS_WALK_SUPER; |
| 3021 | break; |
| 3022 | } |
| 3023 | } |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3024 | // Update fields in klass |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3025 | if (is_static) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3026 | klass->SetReferenceStaticOffsets(reference_offsets); |
Brian Carlstrom | 3320cf4 | 2011-10-04 14:58:28 -0700 | [diff] [blame] | 3027 | } else { |
| 3028 | klass->SetReferenceInstanceOffsets(reference_offsets); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3029 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3030 | } |
| 3031 | |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3032 | String* ClassLinker::ResolveString(const DexFile& dex_file, |
Elliott Hughes | cf4c6c4 | 2011-09-01 15:16:42 -0700 | [diff] [blame] | 3033 | uint32_t string_idx, DexCache* dex_cache) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3034 | String* resolved = dex_cache->GetResolvedString(string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3035 | if (resolved != NULL) { |
| 3036 | return resolved; |
| 3037 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3038 | const DexFile::StringId& string_id = dex_file.GetStringId(string_idx); |
| 3039 | int32_t utf16_length = dex_file.GetStringLength(string_id); |
| 3040 | const char* utf8_data = dex_file.GetStringData(string_id); |
Brian Carlstrom | 928bf02 | 2011-10-11 02:48:14 -0700 | [diff] [blame] | 3041 | String* string = intern_table_->InternStrong(utf16_length, utf8_data); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3042 | dex_cache->SetResolvedString(string_idx, string); |
| 3043 | return string; |
| 3044 | } |
| 3045 | |
| 3046 | Class* ClassLinker::ResolveType(const DexFile& dex_file, |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3047 | uint16_t type_idx, |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3048 | DexCache* dex_cache, |
| 3049 | const ClassLoader* class_loader) { |
| 3050 | Class* resolved = dex_cache->GetResolvedType(type_idx); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3051 | if (resolved == NULL) { |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3052 | const char* descriptor = dex_file.StringByTypeIdx(type_idx); |
Brian Carlstrom | aded5f7 | 2011-10-07 17:15:04 -0700 | [diff] [blame] | 3053 | resolved = FindClass(descriptor, class_loader); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3054 | if (resolved != NULL) { |
Jesse Wilson | 254db0f | 2011-11-16 16:44:11 -0500 | [diff] [blame] | 3055 | // TODO: we used to throw here if resolved's class loader was not the |
| 3056 | // boot class loader. This was to permit different classes with the |
| 3057 | // same name to be loaded simultaneously by different loaders |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3058 | dex_cache->SetResolvedType(type_idx, resolved); |
| 3059 | } else { |
Ian Rogers | cab0101 | 2012-01-10 17:35:46 -0800 | [diff] [blame] | 3060 | CHECK(Thread::Current()->IsExceptionPending()) |
| 3061 | << "Expected pending exception for failed resolution of: " << descriptor; |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 3062 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3063 | } |
| 3064 | return resolved; |
| 3065 | } |
| 3066 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3067 | Method* ClassLinker::ResolveMethod(const DexFile& dex_file, |
| 3068 | uint32_t method_idx, |
| 3069 | DexCache* dex_cache, |
| 3070 | const ClassLoader* class_loader, |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3071 | bool is_direct) { |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3072 | Method* resolved = dex_cache->GetResolvedMethod(method_idx); |
| 3073 | if (resolved != NULL) { |
| 3074 | return resolved; |
| 3075 | } |
| 3076 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 3077 | Class* klass = ResolveType(dex_file, method_id.class_idx_, dex_cache, class_loader); |
| 3078 | if (klass == NULL) { |
Elliott Hughes | cc5f9a9 | 2011-09-28 19:17:29 -0700 | [diff] [blame] | 3079 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3080 | return NULL; |
| 3081 | } |
| 3082 | |
Ian Rogers | 0571d35 | 2011-11-03 19:51:38 -0700 | [diff] [blame] | 3083 | const char* name = dex_file.StringDataByIdx(method_id.name_idx_); |
| 3084 | std::string signature(dex_file.CreateMethodSignature(method_id.proto_idx_, NULL)); |
Brian Carlstrom | 7540ff4 | 2011-09-04 16:38:46 -0700 | [diff] [blame] | 3085 | if (is_direct) { |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3086 | resolved = klass->FindDirectMethod(name, signature); |
Brian Carlstrom | 7540ff4 | 2011-09-04 16:38:46 -0700 | [diff] [blame] | 3087 | } else if (klass->IsInterface()) { |
| 3088 | resolved = klass->FindInterfaceMethod(name, signature); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3089 | } else { |
| 3090 | resolved = klass->FindVirtualMethod(name, signature); |
| 3091 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3092 | if (resolved != NULL) { |
| 3093 | dex_cache->SetResolvedMethod(method_idx, resolved); |
| 3094 | } else { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 3095 | ThrowNoSuchMethodError(is_direct, klass, name, signature); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3096 | } |
| 3097 | return resolved; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3098 | } |
| 3099 | |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3100 | Field* ClassLinker::ResolveField(const DexFile& dex_file, |
| 3101 | uint32_t field_idx, |
| 3102 | DexCache* dex_cache, |
| 3103 | const ClassLoader* class_loader, |
| 3104 | bool is_static) { |
| 3105 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3106 | if (resolved != NULL) { |
| 3107 | return resolved; |
| 3108 | } |
| 3109 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3110 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3111 | if (klass == NULL) { |
Ian Rogers | 9f1ab12 | 2011-12-12 08:52:43 -0800 | [diff] [blame] | 3112 | DCHECK(Thread::Current()->IsExceptionPending()); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3113 | return NULL; |
| 3114 | } |
| 3115 | |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3116 | const char* name = dex_file.GetFieldName(field_id); |
| 3117 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3118 | if (is_static) { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3119 | resolved = klass->FindStaticField(name, type); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3120 | } else { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 3121 | resolved = klass->FindInstanceField(name, type); |
Brian Carlstrom | 20cfffa | 2011-08-26 02:31:27 -0700 | [diff] [blame] | 3122 | } |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3123 | if (resolved != NULL) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 3124 | dex_cache->SetResolvedField(field_idx, resolved); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3125 | } else { |
Ian Rogers | b067ac2 | 2011-12-13 18:05:09 -0800 | [diff] [blame] | 3126 | ThrowNoSuchFieldError(is_static ? "static " : "instance ", klass, type, name); |
| 3127 | } |
| 3128 | return resolved; |
| 3129 | } |
| 3130 | |
| 3131 | Field* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, |
| 3132 | uint32_t field_idx, |
| 3133 | DexCache* dex_cache, |
| 3134 | const ClassLoader* class_loader) { |
| 3135 | Field* resolved = dex_cache->GetResolvedField(field_idx); |
| 3136 | if (resolved != NULL) { |
| 3137 | return resolved; |
| 3138 | } |
| 3139 | const DexFile::FieldId& field_id = dex_file.GetFieldId(field_idx); |
| 3140 | Class* klass = ResolveType(dex_file, field_id.class_idx_, dex_cache, class_loader); |
| 3141 | if (klass == NULL) { |
| 3142 | DCHECK(Thread::Current()->IsExceptionPending()); |
| 3143 | return NULL; |
| 3144 | } |
| 3145 | |
| 3146 | const char* name = dex_file.GetFieldName(field_id); |
| 3147 | const char* type = dex_file.GetFieldTypeDescriptor(field_id); |
| 3148 | resolved = klass->FindField(name, type); |
| 3149 | if (resolved != NULL) { |
| 3150 | dex_cache->SetResolvedField(field_idx, resolved); |
| 3151 | } else { |
| 3152 | ThrowNoSuchFieldError("", klass, type, name); |
Brian Carlstrom | 9ea1cb1 | 2011-08-24 23:18:18 -0700 | [diff] [blame] | 3153 | } |
| 3154 | return resolved; |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 3155 | } |
| 3156 | |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 3157 | const char* ClassLinker::MethodShorty(uint32_t method_idx, Method* referrer) { |
| 3158 | Class* declaring_class = referrer->GetDeclaringClass(); |
| 3159 | DexCache* dex_cache = declaring_class->GetDexCache(); |
| 3160 | const DexFile& dex_file = FindDexFile(dex_cache); |
| 3161 | const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx); |
| 3162 | return dex_file.GetShorty(method_id.proto_idx_); |
| 3163 | } |
| 3164 | |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3165 | void ClassLinker::DumpAllClasses(int flags) const { |
| 3166 | // TODO: at the time this was written, it wasn't safe to call PrettyField with the ClassLinker |
| 3167 | // lock held, because it might need to resolve a field's type, which would try to take the lock. |
| 3168 | std::vector<Class*> all_classes; |
| 3169 | { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3170 | MutexLock mu(classes_lock_); |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3171 | typedef Table::const_iterator It; // TODO: C++0x auto |
| 3172 | for (It it = classes_.begin(), end = classes_.end(); it != end; ++it) { |
| 3173 | all_classes.push_back(it->second); |
| 3174 | } |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3175 | for (It it = image_classes_.begin(), end = image_classes_.end(); it != end; ++it) { |
| 3176 | all_classes.push_back(it->second); |
| 3177 | } |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 3178 | } |
| 3179 | |
| 3180 | for (size_t i = 0; i < all_classes.size(); ++i) { |
| 3181 | all_classes[i]->DumpClass(std::cerr, flags); |
| 3182 | } |
| 3183 | } |
| 3184 | |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 3185 | void ClassLinker::DumpForSigQuit(std::ostream& os) const { |
| 3186 | MutexLock mu(classes_lock_); |
| 3187 | os << "Loaded classes: " << image_classes_.size() << " image classes; " |
| 3188 | << classes_.size() << " allocated classes\n"; |
| 3189 | } |
| 3190 | |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3191 | size_t ClassLinker::NumLoadedClasses() const { |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3192 | MutexLock mu(classes_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 3193 | return classes_.size() + image_classes_.size(); |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 3194 | } |
| 3195 | |
Brian Carlstrom | 47d237a | 2011-10-18 15:08:33 -0700 | [diff] [blame] | 3196 | pid_t ClassLinker::GetClassesLockOwner() { |
| 3197 | return classes_lock_.GetOwner(); |
| 3198 | } |
| 3199 | |
| 3200 | pid_t ClassLinker::GetDexLockOwner() { |
| 3201 | return dex_lock_.GetOwner(); |
Brian Carlstrom | 24a3c2e | 2011-10-17 18:07:52 -0700 | [diff] [blame] | 3202 | } |
| 3203 | |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 3204 | void ClassLinker::SetClassRoot(ClassRoot class_root, Class* klass) { |
| 3205 | DCHECK(!init_done_); |
| 3206 | |
| 3207 | DCHECK(klass != NULL); |
| 3208 | DCHECK(klass->GetClassLoader() == NULL); |
| 3209 | |
| 3210 | DCHECK(class_roots_ != NULL); |
| 3211 | DCHECK(class_roots_->Get(class_root) == NULL); |
| 3212 | class_roots_->Set(class_root, klass); |
| 3213 | } |
| 3214 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 3215 | } // namespace art |