Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiEnv.cpp @ 1120:9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
Summary: Return error on invalid JVMTI_PHASE instead of asserting.
Reviewed-by: dholmes, ohair
| author | dcubed |
|---|---|
| date | Mon, 14 Dec 2009 09:51:09 -0700 |
| parents | a61af66fc99e |
| children | 98cd9901c161 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1120
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
2 * Copyright 2003-2009 Sun Microsystems, Inc. All Rights Reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 | |
| 26 # include "incls/_precompiled.incl" | |
| 27 # include "incls/_jvmtiEnv.cpp.incl" | |
| 28 | |
| 29 | |
| 30 #define FIXLATER 0 // REMOVE this when completed. | |
| 31 | |
| 32 // FIXLATER: hook into JvmtiTrace | |
| 33 #define TraceJVMTICalls false | |
| 34 | |
| 35 JvmtiEnv::JvmtiEnv() : JvmtiEnvBase() { | |
| 36 } | |
| 37 | |
| 38 JvmtiEnv::~JvmtiEnv() { | |
| 39 } | |
| 40 | |
| 41 JvmtiEnv* | |
| 42 JvmtiEnv::create_a_jvmti() { | |
| 43 return new JvmtiEnv(); | |
| 44 } | |
| 45 | |
| 46 // VM operation class to copy jni function table at safepoint. | |
| 47 // More than one java threads or jvmti agents may be reading/ | |
| 48 // modifying jni function tables. To reduce the risk of bad | |
| 49 // interaction b/w these threads it is copied at safepoint. | |
| 50 class VM_JNIFunctionTableCopier : public VM_Operation { | |
| 51 private: | |
| 52 const struct JNINativeInterface_ *_function_table; | |
| 53 public: | |
| 54 VM_JNIFunctionTableCopier(const struct JNINativeInterface_ *func_tbl) { | |
| 55 _function_table = func_tbl; | |
| 56 }; | |
| 57 | |
| 58 VMOp_Type type() const { return VMOp_JNIFunctionTableCopier; } | |
| 59 void doit() { | |
| 60 copy_jni_function_table(_function_table); | |
| 61 }; | |
| 62 }; | |
| 63 | |
| 64 // | |
| 65 // Do not change the "prefix" marker below, everything above it is copied | |
| 66 // unchanged into the filled stub, everything below is controlled by the | |
| 67 // stub filler (only method bodies are carried forward, and then only for | |
| 68 // functionality still in the spec). | |
| 69 // | |
| 70 // end file prefix | |
| 71 | |
| 72 // | |
| 73 // Memory Management functions | |
| 74 // | |
| 75 | |
| 76 // mem_ptr - pre-checked for NULL | |
| 77 jvmtiError | |
| 78 JvmtiEnv::Allocate(jlong size, unsigned char** mem_ptr) { | |
| 79 return allocate(size, mem_ptr); | |
| 80 } /* end Allocate */ | |
| 81 | |
| 82 | |
| 83 // mem - NULL is a valid value, must be checked | |
| 84 jvmtiError | |
| 85 JvmtiEnv::Deallocate(unsigned char* mem) { | |
| 86 return deallocate(mem); | |
| 87 } /* end Deallocate */ | |
| 88 | |
| 89 // Threads_lock NOT held, java_thread not protected by lock | |
| 90 // java_thread - pre-checked | |
| 91 // data - NULL is a valid value, must be checked | |
| 92 jvmtiError | |
| 93 JvmtiEnv::SetThreadLocalStorage(JavaThread* java_thread, const void* data) { | |
| 94 JvmtiThreadState* state = java_thread->jvmti_thread_state(); | |
| 95 if (state == NULL) { | |
| 96 if (data == NULL) { | |
| 97 // leaving state unset same as data set to NULL | |
| 98 return JVMTI_ERROR_NONE; | |
| 99 } | |
| 100 // otherwise, create the state | |
| 101 state = JvmtiThreadState::state_for(java_thread); | |
| 102 } | |
| 103 state->env_thread_state(this)->set_agent_thread_local_storage_data((void*)data); | |
| 104 return JVMTI_ERROR_NONE; | |
| 105 } /* end SetThreadLocalStorage */ | |
| 106 | |
| 107 | |
| 108 // Threads_lock NOT held | |
| 109 // thread - NOT pre-checked | |
| 110 // data_ptr - pre-checked for NULL | |
| 111 jvmtiError | |
| 112 JvmtiEnv::GetThreadLocalStorage(jthread thread, void** data_ptr) { | |
| 113 JavaThread* current_thread = JavaThread::current(); | |
| 114 if (thread == NULL) { | |
| 115 JvmtiThreadState* state = current_thread->jvmti_thread_state(); | |
| 116 *data_ptr = (state == NULL) ? NULL : | |
| 117 state->env_thread_state(this)->get_agent_thread_local_storage_data(); | |
| 118 } else { | |
| 119 | |
| 120 // jvmti_GetThreadLocalStorage is "in native" and doesn't transition | |
| 121 // the thread to _thread_in_vm. However, when the TLS for a thread | |
| 122 // other than the current thread is required we need to transition | |
| 123 // from native so as to resolve the jthread. | |
| 124 | |
| 125 ThreadInVMfromNative __tiv(current_thread); | |
| 126 __ENTRY(jvmtiError, JvmtiEnv::GetThreadLocalStorage , current_thread) | |
| 127 debug_only(VMNativeEntryWrapper __vew;) | |
| 128 | |
| 129 oop thread_oop = JNIHandles::resolve_external_guard(thread); | |
| 130 if (thread_oop == NULL) { | |
| 131 return JVMTI_ERROR_INVALID_THREAD; | |
| 132 } | |
| 133 if (!thread_oop->is_a(SystemDictionary::thread_klass())) { | |
| 134 return JVMTI_ERROR_INVALID_THREAD; | |
| 135 } | |
| 136 JavaThread* java_thread = java_lang_Thread::thread(thread_oop); | |
| 137 if (java_thread == NULL) { | |
| 138 return JVMTI_ERROR_THREAD_NOT_ALIVE; | |
| 139 } | |
| 140 JvmtiThreadState* state = java_thread->jvmti_thread_state(); | |
| 141 *data_ptr = (state == NULL) ? NULL : | |
| 142 state->env_thread_state(this)->get_agent_thread_local_storage_data(); | |
| 143 } | |
| 144 return JVMTI_ERROR_NONE; | |
| 145 } /* end GetThreadLocalStorage */ | |
| 146 | |
| 147 // | |
| 148 // Class functions | |
| 149 // | |
| 150 | |
| 151 // class_count_ptr - pre-checked for NULL | |
| 152 // classes_ptr - pre-checked for NULL | |
| 153 jvmtiError | |
| 154 JvmtiEnv::GetLoadedClasses(jint* class_count_ptr, jclass** classes_ptr) { | |
| 155 return JvmtiGetLoadedClasses::getLoadedClasses(this, class_count_ptr, classes_ptr); | |
| 156 } /* end GetLoadedClasses */ | |
| 157 | |
| 158 | |
| 159 // initiating_loader - NULL is a valid value, must be checked | |
| 160 // class_count_ptr - pre-checked for NULL | |
| 161 // classes_ptr - pre-checked for NULL | |
| 162 jvmtiError | |
| 163 JvmtiEnv::GetClassLoaderClasses(jobject initiating_loader, jint* class_count_ptr, jclass** classes_ptr) { | |
| 164 return JvmtiGetLoadedClasses::getClassLoaderClasses(this, initiating_loader, | |
| 165 class_count_ptr, classes_ptr); | |
| 166 } /* end GetClassLoaderClasses */ | |
| 167 | |
| 168 // k_mirror - may be primitive, this must be checked | |
| 169 // is_modifiable_class_ptr - pre-checked for NULL | |
| 170 jvmtiError | |
| 171 JvmtiEnv::IsModifiableClass(oop k_mirror, jboolean* is_modifiable_class_ptr) { | |
| 172 *is_modifiable_class_ptr = VM_RedefineClasses::is_modifiable_class(k_mirror)? | |
| 173 JNI_TRUE : JNI_FALSE; | |
| 174 return JVMTI_ERROR_NONE; | |
| 175 } /* end IsModifiableClass */ | |
| 176 | |
| 177 // class_count - pre-checked to be greater than or equal to 0 | |
| 178 // classes - pre-checked for NULL | |
| 179 jvmtiError | |
| 180 JvmtiEnv::RetransformClasses(jint class_count, const jclass* classes) { | |
| 181 //TODO: add locking | |
| 182 | |
| 183 int index; | |
| 184 JavaThread* current_thread = JavaThread::current(); | |
| 185 ResourceMark rm(current_thread); | |
| 186 | |
| 187 jvmtiClassDefinition* class_definitions = | |
| 188 NEW_RESOURCE_ARRAY(jvmtiClassDefinition, class_count); | |
| 189 NULL_CHECK(class_definitions, JVMTI_ERROR_OUT_OF_MEMORY); | |
| 190 | |
| 191 for (index = 0; index < class_count; index++) { | |
| 192 HandleMark hm(current_thread); | |
| 193 | |
| 194 jclass jcls = classes[index]; | |
| 195 oop k_mirror = JNIHandles::resolve_external_guard(jcls); | |
| 196 if (k_mirror == NULL) { | |
| 197 return JVMTI_ERROR_INVALID_CLASS; | |
| 198 } | |
| 199 if (!k_mirror->is_a(SystemDictionary::class_klass())) { | |
| 200 return JVMTI_ERROR_INVALID_CLASS; | |
| 201 } | |
| 202 | |
| 203 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 204 return JVMTI_ERROR_UNMODIFIABLE_CLASS; | |
| 205 } | |
| 206 | |
| 207 klassOop k_oop = java_lang_Class::as_klassOop(k_mirror); | |
| 208 KlassHandle klass(current_thread, k_oop); | |
| 209 | |
| 210 jint status = klass->jvmti_class_status(); | |
| 211 if (status & (JVMTI_CLASS_STATUS_ERROR)) { | |
| 212 return JVMTI_ERROR_INVALID_CLASS; | |
| 213 } | |
| 214 if (status & (JVMTI_CLASS_STATUS_ARRAY)) { | |
| 215 return JVMTI_ERROR_UNMODIFIABLE_CLASS; | |
| 216 } | |
| 217 | |
| 218 instanceKlassHandle ikh(current_thread, k_oop); | |
| 219 if (ikh->get_cached_class_file_bytes() == NULL) { | |
| 220 // not cached, we need to reconstitute the class file from VM representation | |
| 221 constantPoolHandle constants(current_thread, ikh->constants()); | |
| 222 ObjectLocker ol(constants, current_thread); // lock constant pool while we query it | |
| 223 | |
| 224 JvmtiClassFileReconstituter reconstituter(ikh); | |
| 225 if (reconstituter.get_error() != JVMTI_ERROR_NONE) { | |
| 226 return reconstituter.get_error(); | |
| 227 } | |
| 228 | |
| 229 class_definitions[index].class_byte_count = (jint)reconstituter.class_file_size(); | |
| 230 class_definitions[index].class_bytes = (unsigned char*) | |
| 231 reconstituter.class_file_bytes(); | |
| 232 } else { | |
| 233 // it is cached, get it from the cache | |
| 234 class_definitions[index].class_byte_count = ikh->get_cached_class_file_len(); | |
| 235 class_definitions[index].class_bytes = ikh->get_cached_class_file_bytes(); | |
| 236 } | |
| 237 class_definitions[index].klass = jcls; | |
| 238 } | |
| 239 VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_retransform); | |
| 240 VMThread::execute(&op); | |
| 241 return (op.check_error()); | |
| 242 } /* end RetransformClasses */ | |
| 243 | |
| 244 | |
| 245 // class_count - pre-checked to be greater than or equal to 0 | |
| 246 // class_definitions - pre-checked for NULL | |
| 247 jvmtiError | |
| 248 JvmtiEnv::RedefineClasses(jint class_count, const jvmtiClassDefinition* class_definitions) { | |
| 249 //TODO: add locking | |
| 250 VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine); | |
| 251 VMThread::execute(&op); | |
| 252 return (op.check_error()); | |
| 253 } /* end RedefineClasses */ | |
| 254 | |
| 255 | |
| 256 // | |
| 257 // Object functions | |
| 258 // | |
| 259 | |
| 260 // size_ptr - pre-checked for NULL | |
| 261 jvmtiError | |
| 262 JvmtiEnv::GetObjectSize(jobject object, jlong* size_ptr) { | |
| 263 oop mirror = JNIHandles::resolve_external_guard(object); | |
| 264 NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT); | |
| 265 | |
| 266 if (mirror->klass() == SystemDictionary::class_klass()) { | |
| 267 if (!java_lang_Class::is_primitive(mirror)) { | |
| 268 mirror = java_lang_Class::as_klassOop(mirror); | |
| 269 assert(mirror != NULL, "class for non-primitive mirror must exist"); | |
| 270 } | |
| 271 } | |
| 272 | |
| 273 *size_ptr = mirror->size() * wordSize; | |
| 274 return JVMTI_ERROR_NONE; | |
| 275 } /* end GetObjectSize */ | |
| 276 | |
| 277 // | |
| 278 // Method functions | |
| 279 // | |
| 280 | |
| 281 // prefix - NULL is a valid value, must be checked | |
| 282 jvmtiError | |
| 283 JvmtiEnv::SetNativeMethodPrefix(const char* prefix) { | |
| 284 return prefix == NULL? | |
| 285 SetNativeMethodPrefixes(0, NULL) : | |
| 286 SetNativeMethodPrefixes(1, (char**)&prefix); | |
| 287 } /* end SetNativeMethodPrefix */ | |
| 288 | |
| 289 | |
| 290 // prefix_count - pre-checked to be greater than or equal to 0 | |
| 291 // prefixes - pre-checked for NULL | |
| 292 jvmtiError | |
| 293 JvmtiEnv::SetNativeMethodPrefixes(jint prefix_count, char** prefixes) { | |
| 294 // Have to grab JVMTI thread state lock to be sure that some thread | |
| 295 // isn't accessing the prefixes at the same time we are setting them. | |
| 296 // No locks during VM bring-up. | |
| 297 if (Threads::number_of_threads() == 0) { | |
| 298 return set_native_method_prefixes(prefix_count, prefixes); | |
| 299 } else { | |
| 300 MutexLocker mu(JvmtiThreadState_lock); | |
| 301 return set_native_method_prefixes(prefix_count, prefixes); | |
| 302 } | |
| 303 } /* end SetNativeMethodPrefixes */ | |
| 304 | |
| 305 // | |
| 306 // Event Management functions | |
| 307 // | |
| 308 | |
| 309 // callbacks - NULL is a valid value, must be checked | |
| 310 // size_of_callbacks - pre-checked to be greater than or equal to 0 | |
| 311 jvmtiError | |
| 312 JvmtiEnv::SetEventCallbacks(const jvmtiEventCallbacks* callbacks, jint size_of_callbacks) { | |
| 313 JvmtiEventController::set_event_callbacks(this, callbacks, size_of_callbacks); | |
| 314 return JVMTI_ERROR_NONE; | |
| 315 } /* end SetEventCallbacks */ | |
| 316 | |
| 317 | |
| 318 // event_thread - NULL is a valid value, must be checked | |
| 319 jvmtiError | |
| 320 JvmtiEnv::SetEventNotificationMode(jvmtiEventMode mode, jvmtiEvent event_type, jthread event_thread, ...) { | |
| 321 JavaThread* java_thread = NULL; | |
| 322 if (event_thread != NULL) { | |
| 323 oop thread_oop = JNIHandles::resolve_external_guard(event_thread); | |
| 324 if (thread_oop == NULL) { | |
| 325 return JVMTI_ERROR_INVALID_THREAD; | |
| 326 } | |
| 327 if (!thread_oop->is_a(SystemDictionary::thread_klass())) { | |
| 328 return JVMTI_ERROR_INVALID_THREAD; | |
| 329 } | |
| 330 java_thread = java_lang_Thread::thread(thread_oop); | |
| 331 if (java_thread == NULL) { | |
| 332 return JVMTI_ERROR_THREAD_NOT_ALIVE; | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 // event_type must be valid | |
| 337 if (!JvmtiEventController::is_valid_event_type(event_type)) { | |
| 338 return JVMTI_ERROR_INVALID_EVENT_TYPE; | |
| 339 } | |
| 340 | |
| 341 // global events cannot be controlled at thread level. | |
| 342 if (java_thread != NULL && JvmtiEventController::is_global_event(event_type)) { | |
| 343 return JVMTI_ERROR_ILLEGAL_ARGUMENT; | |
| 344 } | |
| 345 | |
| 346 bool enabled = (mode == JVMTI_ENABLE); | |
| 347 | |
| 348 // assure that needed capabilities are present | |
| 349 if (enabled && !JvmtiUtil::has_event_capability(event_type, get_capabilities())) { | |
| 350 return JVMTI_ERROR_MUST_POSSESS_CAPABILITY; | |
| 351 } | |
| 352 | |
| 353 if (event_type == JVMTI_EVENT_CLASS_FILE_LOAD_HOOK && enabled) { | |
| 354 record_class_file_load_hook_enabled(); | |
| 355 } | |
| 356 JvmtiEventController::set_user_enabled(this, java_thread, event_type, enabled); | |
| 357 | |
| 358 return JVMTI_ERROR_NONE; | |
| 359 } /* end SetEventNotificationMode */ | |
| 360 | |
| 361 // | |
| 362 // Capability functions | |
| 363 // | |
| 364 | |
| 365 // capabilities_ptr - pre-checked for NULL | |
| 366 jvmtiError | |
| 367 JvmtiEnv::GetPotentialCapabilities(jvmtiCapabilities* capabilities_ptr) { | |
| 368 JvmtiManageCapabilities::get_potential_capabilities(get_capabilities(), | |
| 369 get_prohibited_capabilities(), | |
| 370 capabilities_ptr); | |
| 371 return JVMTI_ERROR_NONE; | |
| 372 } /* end GetPotentialCapabilities */ | |
| 373 | |
| 374 | |
| 375 // capabilities_ptr - pre-checked for NULL | |
| 376 jvmtiError | |
| 377 JvmtiEnv::AddCapabilities(const jvmtiCapabilities* capabilities_ptr) { | |
| 378 return JvmtiManageCapabilities::add_capabilities(get_capabilities(), | |
| 379 get_prohibited_capabilities(), | |
| 380 capabilities_ptr, | |
| 381 get_capabilities()); | |
| 382 } /* end AddCapabilities */ | |
| 383 | |
| 384 | |
| 385 // capabilities_ptr - pre-checked for NULL | |
| 386 jvmtiError | |
| 387 JvmtiEnv::RelinquishCapabilities(const jvmtiCapabilities* capabilities_ptr) { | |
| 388 JvmtiManageCapabilities::relinquish_capabilities(get_capabilities(), capabilities_ptr, get_capabilities()); | |
| 389 return JVMTI_ERROR_NONE; | |
| 390 } /* end RelinquishCapabilities */ | |
| 391 | |
| 392 | |
| 393 // capabilities_ptr - pre-checked for NULL | |
| 394 jvmtiError | |
| 395 JvmtiEnv::GetCapabilities(jvmtiCapabilities* capabilities_ptr) { | |
| 396 JvmtiManageCapabilities::copy_capabilities(get_capabilities(), capabilities_ptr); | |
| 397 return JVMTI_ERROR_NONE; | |
| 398 } /* end GetCapabilities */ | |
| 399 | |
| 400 // | |
| 401 // Class Loader Search functions | |
| 402 // | |
| 403 | |
| 404 // segment - pre-checked for NULL | |
| 405 jvmtiError | |
| 406 JvmtiEnv::AddToBootstrapClassLoaderSearch(const char* segment) { | |
| 407 jvmtiPhase phase = get_phase(); | |
| 408 if (phase == JVMTI_PHASE_ONLOAD) { | |
| 409 Arguments::append_sysclasspath(segment); | |
| 410 return JVMTI_ERROR_NONE; | |
|
1120
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
411 } else if (phase == JVMTI_PHASE_LIVE) { |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
412 // The phase is checked by the wrapper that called this function, |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
413 // but this thread could be racing with the thread that is |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
414 // terminating the VM so we check one more time. |
| 0 | 415 |
| 416 // create the zip entry | |
| 417 ClassPathZipEntry* zip_entry = ClassLoader::create_class_path_zip_entry(segment); | |
| 418 if (zip_entry == NULL) { | |
| 419 return JVMTI_ERROR_ILLEGAL_ARGUMENT; | |
| 420 } | |
| 421 | |
| 422 // lock the loader | |
| 423 Thread* thread = Thread::current(); | |
| 424 HandleMark hm; | |
| 425 Handle loader_lock = Handle(thread, SystemDictionary::system_loader_lock()); | |
| 426 | |
| 427 ObjectLocker ol(loader_lock, thread); | |
| 428 | |
| 429 // add the jar file to the bootclasspath | |
| 430 if (TraceClassLoading) { | |
| 431 tty->print_cr("[Opened %s]", zip_entry->name()); | |
| 432 } | |
| 433 ClassLoader::add_to_list(zip_entry); | |
| 434 return JVMTI_ERROR_NONE; | |
|
1120
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
435 } else { |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
436 return JVMTI_ERROR_WRONG_PHASE; |
| 0 | 437 } |
| 438 | |
| 439 } /* end AddToBootstrapClassLoaderSearch */ | |
| 440 | |
| 441 | |
| 442 // segment - pre-checked for NULL | |
| 443 jvmtiError | |
| 444 JvmtiEnv::AddToSystemClassLoaderSearch(const char* segment) { | |
| 445 jvmtiPhase phase = get_phase(); | |
| 446 | |
| 447 if (phase == JVMTI_PHASE_ONLOAD) { | |
| 448 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
| 449 if (strcmp("java.class.path", p->key()) == 0) { | |
| 450 p->append_value(segment); | |
| 451 break; | |
| 452 } | |
| 453 } | |
| 454 return JVMTI_ERROR_NONE; | |
|
1120
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
455 } else if (phase == JVMTI_PHASE_LIVE) { |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
456 // The phase is checked by the wrapper that called this function, |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
457 // but this thread could be racing with the thread that is |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
458 // terminating the VM so we check one more time. |
| 0 | 459 HandleMark hm; |
| 460 | |
| 461 // create the zip entry (which will open the zip file and hence | |
| 462 // check that the segment is indeed a zip file). | |
| 463 ClassPathZipEntry* zip_entry = ClassLoader::create_class_path_zip_entry(segment); | |
| 464 if (zip_entry == NULL) { | |
| 465 return JVMTI_ERROR_ILLEGAL_ARGUMENT; | |
| 466 } | |
| 467 delete zip_entry; // no longer needed | |
| 468 | |
| 469 // lock the loader | |
| 470 Thread* THREAD = Thread::current(); | |
| 471 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); | |
| 472 | |
| 473 ObjectLocker ol(loader, THREAD); | |
| 474 | |
| 475 // need the path as java.lang.String | |
| 476 Handle path = java_lang_String::create_from_str(segment, THREAD); | |
| 477 if (HAS_PENDING_EXCEPTION) { | |
| 478 CLEAR_PENDING_EXCEPTION; | |
| 479 return JVMTI_ERROR_INTERNAL; | |
| 480 } | |
| 481 | |
| 482 instanceKlassHandle loader_ik(THREAD, loader->klass()); | |
| 483 | |
| 484 // Invoke the appendToClassPathForInstrumentation method - if the method | |
| 485 // is not found it means the loader doesn't support adding to the class path | |
| 486 // in the live phase. | |
| 487 { | |
| 488 JavaValue res(T_VOID); | |
| 489 JavaCalls::call_special(&res, | |
| 490 loader, | |
| 491 loader_ik, | |
| 492 vmSymbolHandles::appendToClassPathForInstrumentation_name(), | |
| 493 vmSymbolHandles::appendToClassPathForInstrumentation_signature(), | |
| 494 path, | |
| 495 THREAD); | |
| 496 if (HAS_PENDING_EXCEPTION) { | |
| 497 symbolOop ex_name = PENDING_EXCEPTION->klass()->klass_part()->name(); | |
| 498 CLEAR_PENDING_EXCEPTION; | |
| 499 | |
| 500 if (ex_name == vmSymbols::java_lang_NoSuchMethodError()) { | |
| 501 return JVMTI_ERROR_CLASS_LOADER_UNSUPPORTED; | |
| 502 } else { | |
| 503 return JVMTI_ERROR_INTERNAL; | |
| 504 } | |
| 505 } | |
| 506 } | |
| 507 | |
| 508 return JVMTI_ERROR_NONE; | |
|
1120
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
509 } else { |
|
9127aa69352e
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
0
diff
changeset
|
510 return JVMTI_ERROR_WRONG_PHASE; |
| 0 | 511 } |
| 512 } /* end AddToSystemClassLoaderSearch */ | |
| 513 | |
| 514 // | |
| 515 // General functions | |
| 516 // | |
| 517 | |
| 518 // phase_ptr - pre-checked for NULL | |
| 519 jvmtiError | |
| 520 JvmtiEnv::GetPhase(jvmtiPhase* phase_ptr) { | |
| 521 *phase_ptr = get_phase(); | |
| 522 return JVMTI_ERROR_NONE; | |
| 523 } /* end GetPhase */ | |
| 524 | |
| 525 | |
| 526 jvmtiError | |
| 527 JvmtiEnv::DisposeEnvironment() { | |
| 528 dispose(); | |
| 529 return JVMTI_ERROR_NONE; | |
| 530 } /* end DisposeEnvironment */ | |
| 531 | |
| 532 | |
| 533 // data - NULL is a valid value, must be checked | |
| 534 jvmtiError | |
| 535 JvmtiEnv::SetEnvironmentLocalStorage(const void* data) { | |
| 536 set_env_local_storage(data); | |
| 537 return JVMTI_ERROR_NONE; | |
| 538 } /* end SetEnvironmentLocalStorage */ | |
| 539 | |
| 540 | |
| 541 // data_ptr - pre-checked for NULL | |
| 542 jvmtiError | |
| 543 JvmtiEnv::GetEnvironmentLocalStorage(void** data_ptr) { | |
| 544 *data_ptr = (void*)get_env_local_storage(); | |
| 545 return JVMTI_ERROR_NONE; | |
| 546 } /* end GetEnvironmentLocalStorage */ | |
| 547 | |
| 548 // version_ptr - pre-checked for NULL | |
| 549 jvmtiError | |
| 550 JvmtiEnv::GetVersionNumber(jint* version_ptr) { | |
| 551 *version_ptr = JVMTI_VERSION; | |
| 552 return JVMTI_ERROR_NONE; | |
| 553 } /* end GetVersionNumber */ | |
| 554 | |
| 555 | |
| 556 // name_ptr - pre-checked for NULL | |
| 557 jvmtiError | |
| 558 JvmtiEnv::GetErrorName(jvmtiError error, char** name_ptr) { | |
| 559 if (error < JVMTI_ERROR_NONE || error > JVMTI_ERROR_MAX) { | |
| 560 return JVMTI_ERROR_ILLEGAL_ARGUMENT; | |
| 561 } | |
| 562 const char *name = JvmtiUtil::error_name(error); | |
| 563 if (name == NULL) { | |
| 564 return JVMTI_ERROR_ILLEGAL_ARGUMENT; | |
| 565 } | |
| 566 size_t len = strlen(name) + 1; | |
| 567 jvmtiError err = allocate(len, (unsigned char**)name_ptr); | |
| 568 if (err == JVMTI_ERROR_NONE) { | |
| 569 memcpy(*name_ptr, name, len); | |
| 570 } | |
| 571 return err; | |
| 572 } /* end GetErrorName */ | |
| 573 | |
| 574 | |
| 575 jvmtiError | |
| 576 JvmtiEnv::SetVerboseFlag(jvmtiVerboseFlag flag, jboolean value) { | |
| 577 switch (flag) { | |
| 578 case JVMTI_VERBOSE_OTHER: | |
| 579 // ignore | |
| 580 break; | |
| 581 case JVMTI_VERBOSE_CLASS: | |
| 582 TraceClassLoading = value != 0; | |
| 583 TraceClassUnloading = value != 0; | |
| 584 break; | |
| 585 case JVMTI_VERBOSE_GC: | |
| 586 PrintGC = value != 0; | |
| 587 TraceClassUnloading = value != 0; | |
| 588 break; | |
| 589 case JVMTI_VERBOSE_JNI: | |
| 590 PrintJNIResolving = value != 0; | |
| 591 break; | |
| 592 default: | |
| 593 return JVMTI_ERROR_ILLEGAL_ARGUMENT; | |
| 594 }; | |
| 595 return JVMTI_ERROR_NONE; | |
| 596 } /* end SetVerboseFlag */ | |
| 597 | |
| 598 | |
| 599 // format_ptr - pre-checked for NULL | |
| 600 jvmtiError | |
| 601 JvmtiEnv::GetJLocationFormat(jvmtiJlocationFormat* format_ptr) { | |
| 602 *format_ptr = JVMTI_JLOCATION_JVMBCI; | |
| 603 return JVMTI_ERROR_NONE; | |
| 604 } /* end GetJLocationFormat */ | |
| 605 | |
| 606 #ifndef JVMTI_KERNEL | |
| 607 | |
| 608 // | |
| 609 // Thread functions | |
| 610 // | |
| 611 | |
| 612 // Threads_lock NOT held | |
| 613 // thread - NOT pre-checked | |
| 614 // thread_state_ptr - pre-checked for NULL | |
| 615 jvmtiError | |
| 616 JvmtiEnv::GetThreadState(jthread thread, jint* thread_state_ptr) { | |
| 617 jint state; | |
| 618 oop thread_oop; | |
| 619 JavaThread* thr; | |
| 620 | |
| 621 if (thread == NULL) { | |
| 622 thread_oop = JavaThread::current()->threadObj(); | |
| 623 } else { | |
| 624 thread_oop = JNIHandles::resolve_external_guard(thread); | |
| 625 } | |
| 626 | |
| 627 if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) { | |
| 628 return JVMTI_ERROR_INVALID_THREAD; | |
| 629 } | |
| 630 | |
| 631 // get most state bits | |
| 632 state = (jint)java_lang_Thread::get_thread_status(thread_oop); | |
| 633 | |
| 634 // add more state bits | |
| 635 thr = java_lang_Thread::thread(thread_oop); | |
| 636 if (thr != NULL) { | |
| 637 JavaThreadState jts = thr->thread_state(); | |
| 638 | |
| 639 if (thr->is_being_ext_suspended()) { | |
| 640 state |= JVMTI_THREAD_STATE_SUSPENDED; | |
| 641 } | |
| 642 if (jts == _thread_in_native) { | |
| 643 state |= JVMTI_THREAD_STATE_IN_NATIVE; | |
| 644 } | |
| 645 OSThread* osThread = thr->osthread(); | |
| 646 if (osThread != NULL && osThread->interrupted()) { | |
| 647 state |= JVMTI_THREAD_STATE_INTERRUPTED; | |
| 648 } | |
| 649 } | |
| 650 | |
| 651 *thread_state_ptr = state; | |
| 652 return JVMTI_ERROR_NONE; | |
| 653 } /* end GetThreadState */ | |
| 654 | |
| 655 | |
| 656 // thread_ptr - pre-checked for NULL | |
| 657 jvmtiError | |
| 658 JvmtiEnv::GetCurrentThread(jthread* thread_ptr) { | |
| 659 JavaThread* current_thread = JavaThread::current(); | |
| 660 *thread_ptr = (jthread)JNIHandles::make_local(current_thread, current_thread->threadObj()); | |
| 661 return JVMTI_ERROR_NONE; | |
| 662 } /* end GetCurrentThread */ | |
| 663 | |
| 664 | |
| 665 // threads_count_ptr - pre-checked for NULL | |
| 666 // threads_ptr - pre-checked for NULL | |
| 667 jvmtiError | |
| 668 JvmtiEnv::GetAllThreads(jint* threads_count_ptr, jthread** threads_ptr) { | |
| 669 int nthreads = 0; | |
| 670 Handle *thread_objs = NULL; | |
| 671 ResourceMark rm; | |
| 672 HandleMark hm; | |
| 673 | |
| 674 // enumerate threads (including agent threads) | |
| 675 ThreadsListEnumerator tle(Thread::current(), true); | |
| 676 nthreads = tle.num_threads(); | |
| 677 *threads_count_ptr = nthreads; | |
| 678 | |
| 679 if (nthreads == 0) { | |
| 680 *threads_ptr = NULL; | |
| 681 return JVMTI_ERROR_NONE; | |
| 682 } | |
| 683 | |
| 684 thread_objs = NEW_RESOURCE_ARRAY(Handle, nthreads); | |
| 685 NULL_CHECK(thread_objs, JVMTI_ERROR_OUT_OF_MEMORY); | |
| 686 | |
| 687 for (int i=0; i < nthreads; i++) { | |
| 688 thread_objs[i] = Handle(tle.get_threadObj(i)); | |
| 689 } | |
| 690 | |
| 691 // have to make global handles outside of Threads_lock | |
| 692 jthread *jthreads = new_jthreadArray(nthreads, thread_objs); | |
| 693 NULL_CHECK(jthreads, JVMTI_ERROR_OUT_OF_MEMORY); | |
| 694 | |
| 695 *threads_ptr = jthreads; | |
| 696 return JVMTI_ERROR_NONE; | |
| 697 } /* end GetAllThreads */ | |
| 698 | |
| 699 | |
| 700 // Threads_lock NOT held, java_thread not protected by lock | |
| 701 // java_thread - pre-checked | |
| 702 jvmtiError | |
| 703 JvmtiEnv::SuspendThread(JavaThread* java_thread) { | |
| 704 // don't allow hidden thread suspend request. | |
| 705 if (java_thread->is_hidden_from_external_view()) { | |
| 706 return (JVMTI_ERROR_NONE); | |
| 707 } | |
| 708 | |
| 709 { | |
| 710 MutexLockerEx ml(java_thread->SR_lock(), Mutex::_no_safepoint_check_flag); | |
| 711 if (java_thread->is_external_suspend()) { | |
| 712 // don't allow nested external suspend requests. | |
| 713 return (JVMTI_ERROR_THREAD_SUSPENDED); | |
| 714 } | |
| 715 if (java_thread->is_exiting()) { // thread is in the process of exiting | |
| 716 return (JVMTI_ERROR_THREAD_NOT_ALIVE); | |
| 717 } | |
| 718 java_thread->set_external_suspend(); | |
| 719 } | |
| 720 | |
| 721 if (!JvmtiSuspendControl::suspend(java_thread)) { | |
| 722 // the thread was in the process of exiting | |
| 723 return (JVMTI_ERROR_THREAD_NOT_ALIVE); | |
| 724 } | |
| 725 return JVMTI_ERROR_NONE; | |
| 726 } /* end SuspendThread */ | |
| 727 | |
| 728 | |
| 729 // request_count - pre-checked to be greater than or equal to 0 | |
| 730 // request_list - pre-checked for NULL | |
| 731 // results - pre-checked for NULL | |
| 732 jvmtiError | |
| 733 JvmtiEnv::SuspendThreadList(jint request_count, const jthread* request_list, jvmtiError* results) { | |
| 734 int needSafepoint = 0; // > 0 if we need a safepoint | |
| 735 for (int i = 0; i < request_count; i++) { | |
| 736 JavaThread *java_thread = get_JavaThread(request_list[i]); | |
| 737 if (java_thread == NULL) { | |
| 738 results[i] = JVMTI_ERROR_INVALID_THREAD; | |
| 739 continue; | |
| 740 } | |
| 741 // the thread has not yet run or has exited (not on threads list) | |
| 742 if (java_thread->threadObj() == NULL) { | |
| 743 results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE; | |
| 744 continue; | |
| 745 } | |
| 746 if (java_lang_Thread::thread(java_thread->threadObj()) == NULL) { | |
| 747 results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE; | |
| 748 continue; | |
| 749 } | |
| 750 // don't allow hidden thread suspend request. | |
| 751 if (java_thread->is_hidden_from_external_view()) { | |
| 752 results[i] = JVMTI_ERROR_NONE; // indicate successful suspend | |
| 753 continue; | |
| 754 } | |
| 755 | |
| 756 { | |
| 757 MutexLockerEx ml(java_thread->SR_lock(), Mutex::_no_safepoint_check_flag); | |
| 758 if (java_thread->is_external_suspend()) { | |
| 759 // don't allow nested external suspend requests. | |
| 760 results[i] = JVMTI_ERROR_THREAD_SUSPENDED; | |
| 761 continue; | |
| 762 } | |
| 763 if (java_thread->is_exiting()) { // thread is in the process of exiting | |
| 764 results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE; | |
| 765 continue; | |
| 766 } | |
| 767 java_thread->set_external_suspend(); | |
| 768 } | |
| 769 if (java_thread->thread_state() == _thread_in_native) { | |
| 770 // We need to try and suspend native threads here. Threads in | |
| 771 // other states will self-suspend on their next transition. | |
| 772 if (!JvmtiSuspendControl::suspend(java_thread)) { | |
| 773 // The thread was in the process of exiting. Force another | |
| 774 // safepoint to make sure that this thread transitions. | |
| 775 needSafepoint++; | |
| 776 results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE; | |
| 777 continue; | |
| 778 } | |
| 779 } else { | |
| 780 needSafepoint++; | |
| 781 } | |
| 782 results[i] = JVMTI_ERROR_NONE; // indicate successful suspend | |
| 783 } | |
| 784 if (needSafepoint > 0) { | |
| 785 VM_ForceSafepoint vfs; | |
| 786 VMThread::execute(&vfs); | |
| 787 } | |
| 788 // per-thread suspend results returned via results parameter | |
| 789 return JVMTI_ERROR_NONE; | |
| 790 } /* end SuspendThreadList */ | |
| 791 | |
| 792 | |
| 793 // Threads_lock NOT held, java_thread not protected by lock | |
| 794 // java_thread - pre-checked | |
| 795 jvmtiError | |
| 796 JvmtiEnv::ResumeThread(JavaThread* java_thread) { | |
| 797 // don't allow hidden thread resume request. | |
| 798 if (java_thread->is_hidden_from_external_view()) { | |
| 799 return JVMTI_ERROR_NONE; | |
| 800 } | |
| 801 | |
| 802 if (!java_thread->is_being_ext_suspended()) { | |
| 803 return JVMTI_ERROR_THREAD_NOT_SUSPENDED; | |
| 804 } | |
| 805 | |
| 806 if (!JvmtiSuspendControl::resume(java_thread)) { | |
| 807 return JVMTI_ERROR_INTERNAL; | |
| 808 } | |
| 809 return JVMTI_ERROR_NONE; | |
| 810 } /* end ResumeThread */ | |
| 811 | |
| 812 | |
| 813 // request_count - pre-checked to be greater than or equal to 0 | |
| 814 // request_list - pre-checked for NULL | |
| 815 // results - pre-checked for NULL | |
| 816 jvmtiError | |
| 817 JvmtiEnv::ResumeThreadList(jint request_count, const jthread* request_list, jvmtiError* results) { | |
| 818 for (int i = 0; i < request_count; i++) { | |
| 819 JavaThread *java_thread = get_JavaThread(request_list[i]); | |
| 820 if (java_thread == NULL) { | |
| 821 results[i] = JVMTI_ERROR_INVALID_THREAD; | |
| 822 continue; | |
| 823 } | |
| 824 // don't allow hidden thread resume request. | |
| 825 if (java_thread->is_hidden_from_external_view()) { | |
| 826 results[i] = JVMTI_ERROR_NONE; // indicate successful resume | |
| 827 continue; | |
| 828 } | |
| 829 if (!java_thread->is_being_ext_suspended()) { | |
| 830 results[i] = JVMTI_ERROR_THREAD_NOT_SUSPENDED; | |
| 831 continue; | |
| 832 } | |
| 833 | |
| 834 if (!JvmtiSuspendControl::resume(java_thread)) { | |
| 835 results[i] = JVMTI_ERROR_INTERNAL; | |
| 836 continue; | |
| 837 } | |
| 838 | |
| 839 results[i] = JVMTI_ERROR_NONE; // indicate successful suspend | |
| 840 } | |
| 841 // per-thread resume results returned via results parameter | |
| 842 return JVMTI_ERROR_NONE; | |
| 843 } /* end ResumeThreadList */ | |
| 844 | |
| 845 | |
| 846 // Threads_lock NOT held, java_thread not protected by lock | |
| 847 // java_thread - pre-checked | |
| 848 jvmtiError | |
| 849 JvmtiEnv::StopThread(JavaThread* java_thread, jobject exception) { | |
| 850 oop e = JNIHandles::resolve_external_guard(exception); | |
| 851 NULL_CHECK(e, JVMTI_ERROR_NULL_POINTER); | |
| 852 | |
| 853 JavaThread::send_async_exception(java_thread->threadObj(), e); | |
| 854 | |
| 855 return JVMTI_ERROR_NONE; | |
| 856 | |
| 857 } /* end StopThread */ | |
| 858 | |
| 859 | |
| 860 // Threads_lock NOT held | |
| 861 // thread - NOT pre-checked | |
| 862 jvmtiError | |
| 863 JvmtiEnv::InterruptThread(jthread thread) { | |
| 864 oop thread_oop = JNIHandles::resolve_external_guard(thread); | |
| 865 if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) | |
| 866 return JVMTI_ERROR_INVALID_THREAD; | |
| 867 | |
| 868 JavaThread* current_thread = JavaThread::current(); | |
| 869 | |
| 870 // Todo: this is a duplicate of JVM_Interrupt; share code in future | |
| 871 // Ensure that the C++ Thread and OSThread structures aren't freed before we operate | |
| 872 MutexLockerEx ml(current_thread->threadObj() == thread_oop ? NULL : Threads_lock); | |
| 873 // We need to re-resolve the java_thread, since a GC might have happened during the | |
| 874 // acquire of the lock | |
| 875 | |
| 876 JavaThread* java_thread = java_lang_Thread::thread(JNIHandles::resolve_external_guard(thread)); | |
| 877 NULL_CHECK(java_thread, JVMTI_ERROR_THREAD_NOT_ALIVE); | |
| 878 | |
| 879 Thread::interrupt(java_thread); | |
| 880 | |
| 881 return JVMTI_ERROR_NONE; | |
| 882 } /* end InterruptThread */ | |
| 883 | |
| 884 | |
| 885 // Threads_lock NOT held | |
| 886 // thread - NOT pre-checked | |
| 887 // info_ptr - pre-checked for NULL | |
| 888 jvmtiError | |
| 889 JvmtiEnv::GetThreadInfo(jthread thread, jvmtiThreadInfo* info_ptr) { | |
| 890 ResourceMark rm; | |
| 891 HandleMark hm; | |
| 892 | |
| 893 JavaThread* current_thread = JavaThread::current(); | |
| 894 | |
| 895 // if thread is NULL the current thread is used | |
| 896 oop thread_oop; | |
| 897 if (thread == NULL) { | |
| 898 thread_oop = current_thread->threadObj(); | |
| 899 } else { | |
| 900 thread_oop = JNIHandles::resolve_external_guard(thread); | |
| 901 } | |
| 902 if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) | |
| 903 return JVMTI_ERROR_INVALID_THREAD; | |
| 904 | |
| 905 Handle thread_obj(current_thread, thread_oop); | |
| 906 typeArrayHandle name; | |
| 907 ThreadPriority priority; | |
| 908 Handle thread_group; | |
| 909 Handle context_class_loader; | |
| 910 bool is_daemon; | |
| 911 | |
| 912 { MutexLocker mu(Threads_lock); | |
| 913 | |
| 914 name = typeArrayHandle(current_thread, java_lang_Thread::name(thread_obj())); | |
| 915 priority = java_lang_Thread::priority(thread_obj()); | |
| 916 thread_group = Handle(current_thread, java_lang_Thread::threadGroup(thread_obj())); | |
| 917 is_daemon = java_lang_Thread::is_daemon(thread_obj()); | |
| 918 | |
| 919 oop loader = java_lang_Thread::context_class_loader(thread_obj()); | |
| 920 context_class_loader = Handle(current_thread, loader); | |
| 921 } | |
| 922 { const char *n; | |
| 923 | |
| 924 if (name() != NULL) { | |
| 925 n = UNICODE::as_utf8((jchar*) name->base(T_CHAR), name->length()); | |
| 926 } else { | |
| 927 n = UNICODE::as_utf8(NULL, 0); | |
| 928 } | |
| 929 | |
| 930 info_ptr->name = (char *) jvmtiMalloc(strlen(n)+1); | |
| 931 if (info_ptr->name == NULL) | |
| 932 return JVMTI_ERROR_OUT_OF_MEMORY; | |
| 933 | |
| 934 strcpy(info_ptr->name, n); | |
| 935 } | |
| 936 info_ptr->is_daemon = is_daemon; | |
| 937 info_ptr->priority = priority; | |
| 938 | |
| 939 info_ptr->context_class_loader = (context_class_loader.is_null()) ? NULL : | |
| 940 jni_reference(context_class_loader); | |
| 941 info_ptr->thread_group = jni_reference(thread_group); | |
| 942 | |
| 943 return JVMTI_ERROR_NONE; | |
| 944 } /* end GetThreadInfo */ | |
| 945 | |
| 946 | |
| 947 // Threads_lock NOT held, java_thread not protected by lock | |
| 948 // java_thread - pre-checked | |
| 949 // owned_monitor_count_ptr - pre-checked for NULL | |
| 950 // owned_monitors_ptr - pre-checked for NULL | |
| 951 jvmtiError | |
| 952 JvmtiEnv::GetOwnedMonitorInfo(JavaThread* java_thread, jint* owned_monitor_count_ptr, jobject** owned_monitors_ptr) { | |
| 953 jvmtiError err = JVMTI_ERROR_NONE; | |
| 954 JavaThread* calling_thread = JavaThread::current(); | |
| 955 | |
| 956 // growable array of jvmti monitors info on the C-heap | |
| 957 GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors_list = | |
| 958 new (ResourceObj::C_HEAP) GrowableArray<jvmtiMonitorStackDepthInfo*>(1, true); | |
| 959 | |
| 960 uint32_t debug_bits = 0; | |
| 961 if (is_thread_fully_suspended(java_thread, true, &debug_bits)) { | |
| 962 err = get_owned_monitors(calling_thread, java_thread, owned_monitors_list); | |
| 963 } else { | |
| 964 // JVMTI get monitors info at safepoint. Do not require target thread to | |
| 965 // be suspended. | |
| 966 VM_GetOwnedMonitorInfo op(this, calling_thread, java_thread, owned_monitors_list); | |
| 967 VMThread::execute(&op); | |
| 968 err = op.result(); | |
| 969 } | |
| 970 jint owned_monitor_count = owned_monitors_list->length(); | |
| 971 if (err == JVMTI_ERROR_NONE) { | |
| 972 if ((err = allocate(owned_monitor_count * sizeof(jobject *), | |
| 973 (unsigned char**)owned_monitors_ptr)) == JVMTI_ERROR_NONE) { | |
| 974 // copy into the returned array | |
| 975 for (int i = 0; i < owned_monitor_count; i++) { | |
| 976 (*owned_monitors_ptr)[i] = | |
| 977 ((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->monitor; | |
| 978 } | |
| 979 *owned_monitor_count_ptr = owned_monitor_count; | |
| 980 } | |
| 981 } | |
| 982 // clean up. | |
| 983 for (int i = 0; i < owned_monitor_count; i++) { | |
| 984 deallocate((unsigned char*)owned_monitors_list->at(i)); | |
| 985 } | |
| 986 delete owned_monitors_list; | |
| 987 | |
| 988 return err; | |
| 989 } /* end GetOwnedMonitorInfo */ | |
| 990 | |
| 991 | |
| 992 // Threads_lock NOT held, java_thread not protected by lock | |
| 993 // java_thread - pre-checked | |
| 994 // monitor_info_count_ptr - pre-checked for NULL | |
| 995 // monitor_info_ptr - pre-checked for NULL | |
| 996 jvmtiError | |
| 997 JvmtiEnv::GetOwnedMonitorStackDepthInfo(JavaThread* java_thread, jint* monitor_info_count_ptr, jvmtiMonitorStackDepthInfo** monitor_info_ptr) { | |
| 998 jvmtiError err = JVMTI_ERROR_NONE; | |
| 999 JavaThread* calling_thread = JavaThread::current(); | |
| 1000 | |
| 1001 // growable array of jvmti monitors info on the C-heap | |
| 1002 GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors_list = | |
| 1003 new (ResourceObj::C_HEAP) GrowableArray<jvmtiMonitorStackDepthInfo*>(1, true); | |
| 1004 | |
| 1005 uint32_t debug_bits = 0; | |
| 1006 if (is_thread_fully_suspended(java_thread, true, &debug_bits)) { | |
| 1007 err = get_owned_monitors(calling_thread, java_thread, owned_monitors_list); | |
| 1008 } else { | |
| 1009 // JVMTI get owned monitors info at safepoint. Do not require target thread to | |
| 1010 // be suspended. | |
| 1011 VM_GetOwnedMonitorInfo op(this, calling_thread, java_thread, owned_monitors_list); | |
| 1012 VMThread::execute(&op); | |
| 1013 err = op.result(); | |
| 1014 } | |
| 1015 | |
| 1016 jint owned_monitor_count = owned_monitors_list->length(); | |
| 1017 if (err == JVMTI_ERROR_NONE) { | |
| 1018 if ((err = allocate(owned_monitor_count * sizeof(jvmtiMonitorStackDepthInfo), | |
| 1019 (unsigned char**)monitor_info_ptr)) == JVMTI_ERROR_NONE) { | |
| 1020 // copy to output array. | |
| 1021 for (int i = 0; i < owned_monitor_count; i++) { | |
| 1022 (*monitor_info_ptr)[i].monitor = | |
| 1023 ((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->monitor; | |
| 1024 (*monitor_info_ptr)[i].stack_depth = | |
| 1025 ((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->stack_depth; | |
| 1026 } | |
| 1027 } | |
| 1028 *monitor_info_count_ptr = owned_monitor_count; | |
| 1029 } | |
| 1030 | |
| 1031 // clean up. | |
| 1032 for (int i = 0; i < owned_monitor_count; i++) { | |
| 1033 deallocate((unsigned char*)owned_monitors_list->at(i)); | |
| 1034 } | |
| 1035 delete owned_monitors_list; | |
| 1036 | |
| 1037 return err; | |
| 1038 } /* end GetOwnedMonitorStackDepthInfo */ | |
| 1039 | |
| 1040 | |
| 1041 // Threads_lock NOT held, java_thread not protected by lock | |
| 1042 // java_thread - pre-checked | |
| 1043 // monitor_ptr - pre-checked for NULL | |
| 1044 jvmtiError | |
| 1045 JvmtiEnv::GetCurrentContendedMonitor(JavaThread* java_thread, jobject* monitor_ptr) { | |
| 1046 jvmtiError err = JVMTI_ERROR_NONE; | |
| 1047 uint32_t debug_bits = 0; | |
| 1048 JavaThread* calling_thread = JavaThread::current(); | |
| 1049 if (is_thread_fully_suspended(java_thread, true, &debug_bits)) { | |
| 1050 err = get_current_contended_monitor(calling_thread, java_thread, monitor_ptr); | |
| 1051 } else { | |
| 1052 // get contended monitor information at safepoint. | |
| 1053 VM_GetCurrentContendedMonitor op(this, calling_thread, java_thread, monitor_ptr); | |
| 1054 VMThread::execute(&op); | |
| 1055 err = op.result(); | |
| 1056 } | |
| 1057 return err; | |
| 1058 } /* end GetCurrentContendedMonitor */ | |
| 1059 | |
| 1060 | |
| 1061 // Threads_lock NOT held | |
| 1062 // thread - NOT pre-checked | |
| 1063 // proc - pre-checked for NULL | |
| 1064 // arg - NULL is a valid value, must be checked | |
| 1065 jvmtiError | |
| 1066 JvmtiEnv::RunAgentThread(jthread thread, jvmtiStartFunction proc, const void* arg, jint priority) { | |
| 1067 oop thread_oop = JNIHandles::resolve_external_guard(thread); | |
| 1068 if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) { | |
| 1069 return JVMTI_ERROR_INVALID_THREAD; | |
| 1070 } | |
| 1071 if (priority < JVMTI_THREAD_MIN_PRIORITY || priority > JVMTI_THREAD_MAX_PRIORITY) { | |
| 1072 return JVMTI_ERROR_INVALID_PRIORITY; | |
| 1073 } | |
| 1074 | |
| 1075 //Thread-self | |
| 1076 JavaThread* current_thread = JavaThread::current(); | |
| 1077 | |
| 1078 Handle thread_hndl(current_thread, thread_oop); | |
| 1079 { | |
| 1080 MutexLocker mu(Threads_lock); // grab Threads_lock | |
| 1081 | |
| 1082 JvmtiAgentThread *new_thread = new JvmtiAgentThread(this, proc, arg); | |
| 1083 | |
| 1084 // At this point it may be possible that no osthread was created for the | |
| 1085 // JavaThread due to lack of memory. | |
| 1086 if (new_thread == NULL || new_thread->osthread() == NULL) { | |
| 1087 if (new_thread) delete new_thread; | |
| 1088 return JVMTI_ERROR_OUT_OF_MEMORY; | |
| 1089 } | |
| 1090 | |
| 1091 java_lang_Thread::set_thread(thread_hndl(), new_thread); | |
| 1092 java_lang_Thread::set_priority(thread_hndl(), (ThreadPriority)priority); | |
| 1093 java_lang_Thread::set_daemon(thread_hndl()); | |
| 1094 | |
| 1095 new_thread->set_threadObj(thread_hndl()); | |
| 1096 Threads::add(new_thread); | |
| 1097 Thread::start(new_thread); | |
| 1098 } // unlock Threads_lock | |
| 1099 | |
| 1100 return JVMTI_ERROR_NONE; | |
| 1101 } /* end RunAgentThread */ | |
| 1102 | |
| 1103 // | |
| 1104 // Thread Group functions | |
| 1105 // | |
| 1106 | |
| 1107 // group_count_ptr - pre-checked for NULL | |
| 1108 // groups_ptr - pre-checked for NULL | |
| 1109 jvmtiError | |
| 1110 JvmtiEnv::GetTopThreadGroups(jint* group_count_ptr, jthreadGroup** groups_ptr) { | |
| 1111 JavaThread* current_thread = JavaThread::current(); | |
| 1112 | |
| 1113 // Only one top level thread group now. | |
| 1114 *group_count_ptr = 1; | |
| 1115 | |
| 1116 // Allocate memory to store global-refs to the thread groups. | |
| 1117 // Assume this area is freed by caller. | |
| 1118 *groups_ptr = (jthreadGroup *) jvmtiMalloc((sizeof(jthreadGroup)) * (*group_count_ptr)); | |
| 1119 | |
| 1120 NULL_CHECK(*groups_ptr, JVMTI_ERROR_OUT_OF_MEMORY); | |
| 1121 | |
| 1122 // Convert oop to Handle, then convert Handle to global-ref. | |
| 1123 { | |
| 1124 HandleMark hm(current_thread); | |
| 1125 Handle system_thread_group(current_thread, Universe::system_thread_group()); | |
| 1126 *groups_ptr[0] = jni_reference(system_thread_group); | |
| 1127 } | |
| 1128 | |
| 1129 return JVMTI_ERROR_NONE; | |
| 1130 } /* end GetTopThreadGroups */ | |
| 1131 | |
| 1132 | |
| 1133 // info_ptr - pre-checked for NULL | |
| 1134 jvmtiError | |
| 1135 JvmtiEnv::GetThreadGroupInfo(jthreadGroup group, jvmtiThreadGroupInfo* info_ptr) { | |
| 1136 ResourceMark rm; | |
| 1137 HandleMark hm; | |
| 1138 | |
| 1139 JavaThread* current_thread = JavaThread::current(); | |
| 1140 | |
| 1141 Handle group_obj (current_thread, JNIHandles::resolve_external_guard(group)); | |
| 1142 NULL_CHECK(group_obj(), JVMTI_ERROR_INVALID_THREAD_GROUP); | |
| 1143 | |
| 1144 typeArrayHandle name; | |
| 1145 Handle parent_group; | |
| 1146 bool is_daemon; | |
| 1147 ThreadPriority max_priority; | |
| 1148 | |
| 1149 { MutexLocker mu(Threads_lock); | |
| 1150 | |
| 1151 name = typeArrayHandle(current_thread, | |
| 1152 java_lang_ThreadGroup::name(group_obj())); | |
| 1153 parent_group = Handle(current_thread, java_lang_ThreadGroup::parent(group_obj())); | |
| 1154 is_daemon = java_lang_ThreadGroup::is_daemon(group_obj()); | |
| 1155 max_priority = java_lang_ThreadGroup::maxPriority(group_obj()); | |
| 1156 } | |
| 1157 | |
| 1158 info_ptr->is_daemon = is_daemon; | |
| 1159 info_ptr->max_priority = max_priority; | |
| 1160 info_ptr->parent = jni_reference(parent_group); | |
| 1161 | |
| 1162 if (name() != NULL) { | |
| 1163 const char* n = UNICODE::as_utf8((jchar*) name->base(T_CHAR), name->length()); | |
| 1164 info_ptr->name = (char *)jvmtiMalloc(strlen(n)+1); | |
| 1165 NULL_CHECK(info_ptr->name, JVMTI_ERROR_OUT_OF_MEMORY); | |
| 1166 strcpy(info_ptr->name, n); | |
| 1167 } else { | |
| 1168 info_ptr->name = NULL; | |
| 1169 } | |
| 1170 | |
| 1171 return JVMTI_ERROR_NONE; | |
| 1172 } /* end GetThreadGroupInfo */ | |
| 1173 | |
| 1174 | |
| 1175 // thread_count_ptr - pre-checked for NULL | |
| 1176 // threads_ptr - pre-checked for NULL | |
| 1177 // group_count_ptr - pre-checked for NULL | |
| 1178 // groups_ptr - pre-checked for NULL | |
| 1179 jvmtiError | |
| 1180 JvmtiEnv::GetThreadGroupChildren(jthreadGroup group, jint* thread_count_ptr, jthread** threads_ptr, jint* group_count_ptr, jthreadGroup** groups_ptr) { | |
| 1181 JavaThread* current_thread = JavaThread::current(); | |
| 1182 oop group_obj = (oop) JNIHandles::resolve_external_guard(group); | |
| 1183 NULL_CHECK(group_obj, JVMTI_ERROR_INVALID_THREAD_GROUP); | |
| 1184 | |
| 1185 Handle *thread_objs = NULL; | |
| 1186 Handle *group_objs = NULL; | |
| 1187 int nthreads = 0; | |
| 1188 int ngroups = 0; | |
| 1189 int hidden_threads = 0; | |
| 1190 | |
| 1191 ResourceMark rm; | |
| 1192 HandleMark hm; | |
| 1193 | |
| 1194 Handle group_hdl(current_thread, group_obj); | |
| 1195 | |
| 1196 { MutexLocker mu(Threads_lock); | |
| 1197 | |
| 1198 nthreads = java_lang_ThreadGroup::nthreads(group_hdl()); | |
| 1199 ngroups = java_lang_ThreadGroup::ngroups(group_hdl()); | |
| 1200 | |
| 1201 if (nthreads > 0) { | |
| 1202 objArrayOop threads = java_lang_ThreadGroup::threads(group_hdl()); | |
| 1203 assert(nthreads <= threads->length(), "too many threads"); | |
| 1204 thread_objs = NEW_RESOURCE_ARRAY(Handle,nthreads); | |
| 1205 for (int i=0, j=0; i<nthreads; i++) { | |
| 1206 oop thread_obj = threads->obj_at(i); | |
| 1207 assert(thread_obj != NULL, "thread_obj is NULL"); | |
| 1208 JavaThread *javathread = java_lang_Thread::thread(thread_obj); | |
| 1209 // Filter out hidden java threads. | |
| 1210 if (javathread != NULL && javathread->is_hidden_from_external_view()) { | |
| 1211 hidden_threads++; | |
| 1212 continue; | |
| 1213 } | |
| 1214 thread_objs[j++] = Handle(current_thread, thread_obj); | |
| 1215 } | |
| 1216 nthreads -= hidden_threads; | |
| 1217 } | |
| 1218 if (ngroups > 0) { | |
| 1219 objArrayOop groups = java_lang_ThreadGroup::groups(group_hdl()); | |
| 1220 assert(ngroups <= groups->length(), "too many threads"); | |
| 1221 group_objs = NEW_RESOURCE_ARRAY(Handle,ngroups); | |
| 1222 for (int i=0; i<ngroups; i++) { | |
| 1223 oop group_obj = groups->obj_at(i); | |
| 1224 assert(group_obj != NULL, "group_obj != NULL"); | |
| 1225 group_objs[i] = Handle(current_thread, group_obj); | |
| 1226 } | |
| 1227 } | |
| 1228 } | |
| 1229 | |
| 1230 // have to make global handles outside of Threads_lock | |
| 1231 *group_count_ptr = ngroups; | |
| 1232 *thread_count_ptr = nthreads; | |
| 1233 *threads_ptr = new_jthreadArray(nthreads, thread_objs); | |
| 1234 *groups_ptr = new_jthreadGroupArray(ngroups, group_objs); | |
| 1235 if ((nthreads > 0) && (*threads_ptr == NULL)) { | |
| 1236 return JVMTI_ERROR_OUT_OF_MEMORY; | |
| 1237 } | |
| 1238 if ((ngroups > 0) && (*groups_ptr == NULL)) { | |
| 1239 return JVMTI_ERROR_OUT_OF_MEMORY; | |
| 1240 } | |
| 1241 | |
| 1242 return JVMTI_ERROR_NONE; | |
| 1243 } /* end GetThreadGroupChildren */ | |
| 1244 | |
| 1245 | |
| 1246 // | |
| 1247 // Stack Frame functions | |
| 1248 // | |
| 1249 | |
| 1250 // Threads_lock NOT held, java_thread not protected by lock | |
| 1251 // java_thread - pre-checked | |
| 1252 // max_frame_count - pre-checked to be greater than or equal to 0 | |
| 1253 // frame_buffer - pre-checked for NULL | |
| 1254 // count_ptr - pre-checked for NULL | |
| 1255 jvmtiError | |
| 1256 JvmtiEnv::GetStackTrace(JavaThread* java_thread, jint start_depth, jint max_frame_count, jvmtiFrameInfo* frame_buffer, jint* count_ptr) { | |
| 1257 jvmtiError err = JVMTI_ERROR_NONE; | |
| 1258 uint32_t debug_bits = 0; | |
| 1259 if (is_thread_fully_suspended(java_thread, true, &debug_bits)) { | |
| 1260 err = get_stack_trace(java_thread, start_depth, max_frame_count, frame_buffer, count_ptr); | |
| 1261 } else { | |
| 1262 // JVMTI get stack trace at safepoint. Do not require target thread to | |
| 1263 // be suspended. | |
| 1264 VM_GetStackTrace op(this, java_thread, start_depth, max_frame_count, frame_buffer, count_ptr); | |
| 1265 VMThread::execute(&op); | |
| 1266 err = op.result(); | |
| 1267 } | |
| 1268 | |
| 1269 return err; | |
| 1270 } /* end GetStackTrace */ | |
| 1271 | |
| 1272 | |
| 1273 // max_frame_count - pre-checked to be greater than or equal to 0 | |
| 1274 // stack_info_ptr - pre-checked for NULL | |
| 1275 // thread_count_ptr - pre-checked for NULL | |
| 1276 jvmtiError | |
| 1277 JvmtiEnv::GetAllStackTraces(jint max_frame_count, jvmtiStackInfo** stack_info_ptr, jint* thread_count_ptr) { | |
| 1278 jvmtiError err = JVMTI_ERROR_NONE; | |
| 1279 JavaThread* calling_thread = JavaThread::current(); | |
| 1280 | |
| 1281 // JVMTI get stack traces at safepoint. | |
| 1282 VM_GetAllStackTraces op(this, calling_thread, max_frame_count); | |
| 1283 VMThread::execute(&op); | |
| 1284 *thread_count_ptr = op.final_thread_count(); | |
| 1285 *stack_info_ptr = op.stack_info(); | |
| 1286 err = op.result(); | |
| 1287 return err; | |
| 1288 } /* end GetAllStackTraces */ | |
| 1289 | |
| 1290 | |
| 1291 // thread_count - pre-checked to be greater than or equal to 0 | |
| 1292 // thread_list - pre-checked for NULL | |
| 1293 // max_frame_count - pre-checked to be greater than or equal to 0 | |
| 1294 // stack_info_ptr - pre-checked for NULL | |
| 1295 jvmtiError | |
| 1296 JvmtiEnv::GetThreadListStackTraces(jint thread_count, const jthread* thread_list, jint max_frame_count, jvmtiStackInfo** stack_info_ptr) { | |
| 1297 jvmtiError err = JVMTI_ERROR_NONE; | |
| 1298 // JVMTI get stack traces at safepoint. | |
| 1299 VM_GetThreadListStackTraces op(this, thread_count, thread_list, max_frame_count); | |
| 1300 VMThread::execute(&op); | |
| 1301 err = op.result(); | |
| 1302 if (err == JVMTI_ERROR_NONE) { | |
| 1303 *stack_info_ptr = op.stack_info(); | |
| 1304 } | |
| 1305 return err; | |
| 1306 } /* end GetThreadListStackTraces */ | |
| 1307 | |
| 1308 | |
| 1309 // Threads_lock NOT held, java_thread not protected by lock | |
| 1310 // java_thread - pre-checked | |
| 1311 // count_ptr - pre-checked for NULL | |
| 1312 jvmtiError | |
| 1313 JvmtiEnv::GetFrameCount(JavaThread* java_thread, jint* count_ptr) { | |
| 1314 jvmtiError err = JVMTI_ERROR_NONE; | |
| 1315 | |
| 1316 // retrieve or create JvmtiThreadState. | |
| 1317 JvmtiThreadState* state = JvmtiThreadState::state_for(java_thread); | |
| 1318 uint32_t debug_bits = 0; | |
| 1319 if (is_thread_fully_suspended(java_thread, true, &debug_bits)) { | |
| 1320 err = get_frame_count(state, count_ptr); | |
| 1321 } else { | |
| 1322 // get java stack frame count at safepoint. | |
| 1323 VM_GetFrameCount op(this, state, count_ptr); | |
| 1324 VMThread::execute(&op); | |
| 1325 err = op.result(); | |
| 1326 } | |
| 1327 return err; | |
| 1328 } /* end GetFrameCount */ | |
| 1329 | |
| 1330 | |
| 1331 // Threads_lock NOT held, java_thread not protected by lock | |
| 1332 // java_thread - pre-checked | |
| 1333 jvmtiError | |
| 1334 JvmtiEnv::PopFrame(JavaThread* java_thread) { | |
| 1335 JavaThread* current_thread = JavaThread::current(); | |
| 1336 HandleMark hm(current_thread); | |
| 1337 uint32_t debug_bits = 0; | |
| 1338 | |
| 1339 // Check if java_thread is fully suspended | |
| 1340 if (!is_thread_fully_suspended(java_thread, true /* wait for suspend completion */, &debug_bits)) { | |
| 1341 return JVMTI_ERROR_THREAD_NOT_SUSPENDED; | |
| 1342 } | |
| 1343 // Check to see if a PopFrame was already in progress | |
| 1344 if (java_thread->popframe_condition() != JavaThread::popframe_inactive) { | |
| 1345 // Probably possible for JVMTI clients to trigger this, but the | |
| 1346 // JPDA backend shouldn't allow this to happen | |
| 1347 return JVMTI_ERROR_INTERNAL; | |
| 1348 } | |
| 1349 | |
| 1350 { | |
| 1351 // Was workaround bug | |
| 1352 // 4812902: popFrame hangs if the method is waiting at a synchronize | |
| 1353 // Catch this condition and return an error to avoid hanging. | |
| 1354 // Now JVMTI spec allows an implementation to bail out with an opaque frame error. | |
| 1355 OSThread* osThread = java_thread->osthread(); | |
| 1356 if (osThread->get_state() == MONITOR_WAIT) { | |
| 1357 return JVMTI_ERROR_OPAQUE_FRAME; | |
| 1358 } | |
| 1359 } | |
| 1360 | |
| 1361 { | |
| 1362 ResourceMark rm(current_thread); | |
| 1363 // Check if there are more than one Java frame in this thread, that the top two frames | |
| 1364 // are Java (not native) frames, and that there is no intervening VM frame | |
| 1365 int frame_count = 0; | |
| 1366 bool is_interpreted[2]; | |
| 1367 intptr_t *frame_sp[2]; | |
| 1368 // The 2-nd arg of constructor is needed to stop iterating at java entry frame. | |
| 1369 for (vframeStream vfs(java_thread, true); !vfs.at_end(); vfs.next()) { | |
| 1370 methodHandle mh(current_thread, vfs.method()); | |
| 1371 if (mh->is_native()) return(JVMTI_ERROR_OPAQUE_FRAME); | |
| 1372 is_interpreted[frame_count] = vfs.is_interpreted_frame(); | |
| 1373 frame_sp[frame_count] = vfs.frame_id(); | |
| 1374 if (++frame_count > 1) break; | |
| 1375 } | |
| 1376 if (frame_count < 2) { | |
| 1377 // We haven't found two adjacent non-native Java frames on the top. | |
| 1378 // There can be two situations here: | |
| 1379 // 1. There are no more java frames | |
| 1380 // 2. Two top java frames are separated by non-java native frames | |
| 1381 if(vframeFor(java_thread, 1) == NULL) { | |
| 1382 return JVMTI_ERROR_NO_MORE_FRAMES; | |
| 1383 } else { | |
| 1384 // Intervening non-java native or VM frames separate java frames. | |
| 1385 // Current implementation does not support this. See bug #5031735. | |
| 1386 // In theory it is possible to pop frames in such cases. | |
| 1387 return JVMTI_ERROR_OPAQUE_FRAME; | |
| 1388 } | |
| 1389 } | |
| 1390 | |
| 1391 // If any of the top 2 frames is a compiled one, need to deoptimize it | |
| 1392 for (int i = 0; i < 2; i++) { | |
| 1393 if (!is_interpreted[i]) { | |
| 1394 VM_DeoptimizeFrame op(java_thread, frame_sp[i]); | |
| 1395 VMThread::execute(&op); | |
| 1396 } | |
| 1397 } | |
| 1398 | |
| 1399 // Update the thread state to reflect that the top frame is popped | |
| 1400 // so that cur_stack_depth is maintained properly and all frameIDs | |
| 1401 // are invalidated. | |
| 1402 // The current frame will be popped later when the suspended thread | |
| 1403 // is resumed and right before returning from VM to Java. | |
| 1404 // (see call_VM_base() in assembler_<cpu>.cpp). | |
| 1405 | |
| 1406 // It's fine to update the thread state here because no JVMTI events | |
| 1407 // shall be posted for this PopFrame. | |
| 1408 | |
| 1409 // retreive or create the state | |
| 1410 JvmtiThreadState* state = JvmtiThreadState::state_for(java_thread); | |
| 1411 | |
| 1412 state->update_for_pop_top_frame(); | |
| 1413 java_thread->set_popframe_condition(JavaThread::popframe_pending_bit); | |
| 1414 // Set pending step flag for this popframe and it is cleared when next | |
| 1415 // step event is posted. | |
| 1416 state->set_pending_step_for_popframe(); | |
| 1417 } | |
| 1418 | |
| 1419 return JVMTI_ERROR_NONE; | |
| 1420 } /* end PopFrame */ | |
| 1421 | |
| 1422 | |
| 1423 // Threads_lock NOT held, java_thread not protected by lock | |
| 1424 // java_thread - pre-checked | |
| 1425 // java_thread - unchecked | |
| 1426 // depth - pre-checked as non-negative | |
| 1427 // method_ptr - pre-checked for NULL | |
| 1428 // location_ptr - pre-checked for NULL | |
| 1429 jvmtiError | |
| 1430 JvmtiEnv::GetFrameLocation(JavaThread* java_thread, jint depth, jmethodID* method_ptr, jlocation* location_ptr) { | |
| 1431 jvmtiError err = JVMTI_ERROR_NONE; | |
| 1432 uint32_t debug_bits = 0; | |
| 1433 | |
| 1434 if (is_thread_fully_suspended(java_thread, true, &debug_bits)) { | |
| 1435 err = get_frame_location(java_thread, depth, method_ptr, location_ptr); | |
| 1436 } else { | |
| 1437 // JVMTI get java stack frame location at safepoint. | |
| 1438 VM_GetFrameLocation op(this, java_thread, depth, method_ptr, location_ptr); | |
| 1439 VMThread::execute(&op); | |
| 1440 err = op.result(); | |
| 1441 } | |
| 1442 return err; | |
| 1443 } /* end GetFrameLocation */ | |
| 1444 | |
| 1445 | |
| 1446 // Threads_lock NOT held, java_thread not protected by lock | |
| 1447 // java_thread - pre-checked | |
| 1448 // java_thread - unchecked | |
| 1449 // depth - pre-checked as non-negative | |
| 1450 jvmtiError | |
| 1451 JvmtiEnv::NotifyFramePop(JavaThread* java_thread, jint depth) { | |
| 1452 ResourceMark rm; | |
| 1453 uint32_t debug_bits = 0; | |
| 1454 | |
| 1455 if (!JvmtiEnv::is_thread_fully_suspended(java_thread, true, &debug_bits)) { | |
| 1456 return JVMTI_ERROR_THREAD_NOT_SUSPENDED; | |
| 1457 } | |
| 1458 | |
| 1459 if (TraceJVMTICalls) { | |
| 1460 JvmtiSuspendControl::print(); | |
| 1461 } | |
| 1462 | |
| 1463 vframe *vf = vframeFor(java_thread, depth); | |
| 1464 if (vf == NULL) { | |
| 1465 return JVMTI_ERROR_NO_MORE_FRAMES; | |
| 1466 } | |
| 1467 | |
| 1468 if (!vf->is_java_frame() || ((javaVFrame*) vf)->method()->is_native()) { | |
| 1469 return JVMTI_ERROR_OPAQUE_FRAME; | |
| 1470 } | |
| 1471 | |
| 1472 assert(vf->frame_pointer() != NULL, "frame pointer mustn't be NULL"); | |
| 1473 | |
| 1474 JvmtiThreadState *state = JvmtiThreadState::state_for(java_thread); | |
| 1475 int frame_number = state->count_frames() - depth; | |
| 1476 state->env_thread_state(this)->set_frame_pop(frame_number); | |
| 1477 | |
| 1478 return JVMTI_ERROR_NONE; | |
| 1479 } /* end NotifyFramePop */ | |
| 1480 | |
| 1481 | |
| 1482 // | |
| 1483 // Force Early Return functions | |
| 1484 // | |
| 1485 | |
| 1486 // Threads_lock NOT held, java_thread not protected by lock | |
| 1487 // java_thread - pre-checked | |
| 1488 jvmtiError | |
| 1489 JvmtiEnv::ForceEarlyReturnObject(JavaThread* java_thread, jobject value) { | |
| 1490 jvalue val; | |
| 1491 val.l = value; | |
| 1492 return force_early_return(java_thread, val, atos); | |
| 1493 } /* end ForceEarlyReturnObject */ | |
| 1494 | |
| 1495 | |
| 1496 // Threads_lock NOT held, java_thread not protected by lock | |
| 1497 // java_thread - pre-checked | |
| 1498 jvmtiError | |
| 1499 JvmtiEnv::ForceEarlyReturnInt(JavaThread* java_thread, jint value) { | |
| 1500 jvalue val; | |
| 1501 val.i = value; | |
| 1502 return force_early_return(java_thread, val, itos); | |
| 1503 } /* end ForceEarlyReturnInt */ | |
| 1504 | |
| 1505 | |
| 1506 // Threads_lock NOT held, java_thread not protected by lock | |
| 1507 // java_thread - pre-checked | |
| 1508 jvmtiError | |
| 1509 JvmtiEnv::ForceEarlyReturnLong(JavaThread* java_thread, jlong value) { | |
| 1510 jvalue val; | |
| 1511 val.j = value; | |
| 1512 return force_early_return(java_thread, val, ltos); | |
| 1513 } /* end ForceEarlyReturnLong */ | |
| 1514 | |
| 1515 | |
| 1516 // Threads_lock NOT held, java_thread not protected by lock | |
| 1517 // java_thread - pre-checked | |
| 1518 jvmtiError | |
| 1519 JvmtiEnv::ForceEarlyReturnFloat(JavaThread* java_thread, jfloat value) { | |
| 1520 jvalue val; | |
| 1521 val.f = value; | |
| 1522 return force_early_return(java_thread, val, ftos); | |
| 1523 } /* end ForceEarlyReturnFloat */ | |
| 1524 | |
| 1525 | |
| 1526 // Threads_lock NOT held, java_thread not protected by lock | |
| 1527 // java_thread - pre-checked | |
| 1528 jvmtiError | |
| 1529 JvmtiEnv::ForceEarlyReturnDouble(JavaThread* java_thread, jdouble value) { | |
| 1530 jvalue val; | |
| 1531 val.d = value; | |
| 1532 return force_early_return(java_thread, val, dtos); | |
| 1533 } /* end ForceEarlyReturnDouble */ | |
| 1534 | |
| 1535 | |
| 1536 // Threads_lock NOT held, java_thread not protected by lock | |
| 1537 // java_thread - pre-checked | |
| 1538 jvmtiError | |
| 1539 JvmtiEnv::ForceEarlyReturnVoid(JavaThread* java_thread) { | |
| 1540 jvalue val; | |
| 1541 val.j = 0L; | |
| 1542 return force_early_return(java_thread, val, vtos); | |
| 1543 } /* end ForceEarlyReturnVoid */ | |
| 1544 | |
| 1545 | |
| 1546 // | |
| 1547 // Heap functions | |
| 1548 // | |
| 1549 | |
| 1550 // klass - NULL is a valid value, must be checked | |
| 1551 // initial_object - NULL is a valid value, must be checked | |
| 1552 // callbacks - pre-checked for NULL | |
| 1553 // user_data - NULL is a valid value, must be checked | |
| 1554 jvmtiError | |
| 1555 JvmtiEnv::FollowReferences(jint heap_filter, jclass klass, jobject initial_object, const jvmtiHeapCallbacks* callbacks, const void* user_data) { | |
| 1556 // check klass if provided | |
| 1557 klassOop k_oop = NULL; | |
| 1558 if (klass != NULL) { | |
| 1559 oop k_mirror = JNIHandles::resolve_external_guard(klass); | |
| 1560 if (k_mirror == NULL) { | |
| 1561 return JVMTI_ERROR_INVALID_CLASS; | |
| 1562 } | |
| 1563 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 1564 return JVMTI_ERROR_NONE; | |
| 1565 } | |
| 1566 k_oop = java_lang_Class::as_klassOop(k_mirror); | |
| 1567 if (k_oop == NULL) { | |
| 1568 return JVMTI_ERROR_INVALID_CLASS; | |
| 1569 } | |
| 1570 } | |
| 1571 | |
| 1572 Thread *thread = Thread::current(); | |
| 1573 HandleMark hm(thread); | |
| 1574 KlassHandle kh (thread, k_oop); | |
| 1575 | |
| 1576 TraceTime t("FollowReferences", TraceJVMTIObjectTagging); | |
| 1577 JvmtiTagMap::tag_map_for(this)->follow_references(heap_filter, kh, initial_object, callbacks, user_data); | |
| 1578 return JVMTI_ERROR_NONE; | |
| 1579 } /* end FollowReferences */ | |
| 1580 | |
| 1581 | |
| 1582 // klass - NULL is a valid value, must be checked | |
| 1583 // callbacks - pre-checked for NULL | |
| 1584 // user_data - NULL is a valid value, must be checked | |
| 1585 jvmtiError | |
| 1586 JvmtiEnv::IterateThroughHeap(jint heap_filter, jclass klass, const jvmtiHeapCallbacks* callbacks, const void* user_data) { | |
| 1587 // check klass if provided | |
| 1588 klassOop k_oop = NULL; | |
| 1589 if (klass != NULL) { | |
| 1590 oop k_mirror = JNIHandles::resolve_external_guard(klass); | |
| 1591 if (k_mirror == NULL) { | |
| 1592 return JVMTI_ERROR_INVALID_CLASS; | |
| 1593 } | |
| 1594 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 1595 return JVMTI_ERROR_NONE; | |
| 1596 } | |
| 1597 k_oop = java_lang_Class::as_klassOop(k_mirror); | |
| 1598 if (k_oop == NULL) { | |
| 1599 return JVMTI_ERROR_INVALID_CLASS; | |
| 1600 } | |
| 1601 } | |
| 1602 | |
| 1603 Thread *thread = Thread::current(); | |
| 1604 HandleMark hm(thread); | |
| 1605 KlassHandle kh (thread, k_oop); | |
| 1606 | |
| 1607 TraceTime t("IterateThroughHeap", TraceJVMTIObjectTagging); | |
| 1608 JvmtiTagMap::tag_map_for(this)->iterate_through_heap(heap_filter, kh, callbacks, user_data); | |
| 1609 return JVMTI_ERROR_NONE; | |
| 1610 } /* end IterateThroughHeap */ | |
| 1611 | |
| 1612 | |
| 1613 // tag_ptr - pre-checked for NULL | |
| 1614 jvmtiError | |
| 1615 JvmtiEnv::GetTag(jobject object, jlong* tag_ptr) { | |
| 1616 oop o = JNIHandles::resolve_external_guard(object); | |
| 1617 NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT); | |
| 1618 *tag_ptr = JvmtiTagMap::tag_map_for(this)->get_tag(object); | |
| 1619 return JVMTI_ERROR_NONE; | |
| 1620 } /* end GetTag */ | |
| 1621 | |
| 1622 | |
| 1623 jvmtiError | |
| 1624 JvmtiEnv::SetTag(jobject object, jlong tag) { | |
| 1625 oop o = JNIHandles::resolve_external_guard(object); | |
| 1626 NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT); | |
| 1627 JvmtiTagMap::tag_map_for(this)->set_tag(object, tag); | |
| 1628 return JVMTI_ERROR_NONE; | |
| 1629 } /* end SetTag */ | |
| 1630 | |
| 1631 | |
| 1632 // tag_count - pre-checked to be greater than or equal to 0 | |
| 1633 // tags - pre-checked for NULL | |
| 1634 // count_ptr - pre-checked for NULL | |
| 1635 // object_result_ptr - NULL is a valid value, must be checked | |
| 1636 // tag_result_ptr - NULL is a valid value, must be checked | |
| 1637 jvmtiError | |
| 1638 JvmtiEnv::GetObjectsWithTags(jint tag_count, const jlong* tags, jint* count_ptr, jobject** object_result_ptr, jlong** tag_result_ptr) { | |
| 1639 TraceTime t("GetObjectsWithTags", TraceJVMTIObjectTagging); | |
| 1640 return JvmtiTagMap::tag_map_for(this)->get_objects_with_tags((jlong*)tags, tag_count, count_ptr, object_result_ptr, tag_result_ptr); | |
| 1641 } /* end GetObjectsWithTags */ | |
| 1642 | |
| 1643 | |
| 1644 jvmtiError | |
| 1645 JvmtiEnv::ForceGarbageCollection() { | |
| 1646 Universe::heap()->collect(GCCause::_jvmti_force_gc); | |
| 1647 return JVMTI_ERROR_NONE; | |
| 1648 } /* end ForceGarbageCollection */ | |
| 1649 | |
| 1650 | |
| 1651 // | |
| 1652 // Heap (1.0) functions | |
| 1653 // | |
| 1654 | |
| 1655 // object_reference_callback - pre-checked for NULL | |
| 1656 // user_data - NULL is a valid value, must be checked | |
| 1657 jvmtiError | |
| 1658 JvmtiEnv::IterateOverObjectsReachableFromObject(jobject object, jvmtiObjectReferenceCallback object_reference_callback, const void* user_data) { | |
| 1659 oop o = JNIHandles::resolve_external_guard(object); | |
| 1660 NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT); | |
| 1661 JvmtiTagMap::tag_map_for(this)->iterate_over_objects_reachable_from_object(object, object_reference_callback, user_data); | |
| 1662 return JVMTI_ERROR_NONE; | |
| 1663 } /* end IterateOverObjectsReachableFromObject */ | |
| 1664 | |
| 1665 | |
| 1666 // heap_root_callback - NULL is a valid value, must be checked | |
| 1667 // stack_ref_callback - NULL is a valid value, must be checked | |
| 1668 // object_ref_callback - NULL is a valid value, must be checked | |
| 1669 // user_data - NULL is a valid value, must be checked | |
| 1670 jvmtiError | |
| 1671 JvmtiEnv::IterateOverReachableObjects(jvmtiHeapRootCallback heap_root_callback, jvmtiStackReferenceCallback stack_ref_callback, jvmtiObjectReferenceCallback object_ref_callback, const void* user_data) { | |
| 1672 TraceTime t("IterateOverReachableObjects", TraceJVMTIObjectTagging); | |
| 1673 JvmtiTagMap::tag_map_for(this)->iterate_over_reachable_objects(heap_root_callback, stack_ref_callback, object_ref_callback, user_data); | |
| 1674 return JVMTI_ERROR_NONE; | |
| 1675 } /* end IterateOverReachableObjects */ | |
| 1676 | |
| 1677 | |
| 1678 // heap_object_callback - pre-checked for NULL | |
| 1679 // user_data - NULL is a valid value, must be checked | |
| 1680 jvmtiError | |
| 1681 JvmtiEnv::IterateOverHeap(jvmtiHeapObjectFilter object_filter, jvmtiHeapObjectCallback heap_object_callback, const void* user_data) { | |
| 1682 TraceTime t("IterateOverHeap", TraceJVMTIObjectTagging); | |
| 1683 Thread *thread = Thread::current(); | |
| 1684 HandleMark hm(thread); | |
| 1685 JvmtiTagMap::tag_map_for(this)->iterate_over_heap(object_filter, KlassHandle(), heap_object_callback, user_data); | |
| 1686 return JVMTI_ERROR_NONE; | |
| 1687 } /* end IterateOverHeap */ | |
| 1688 | |
| 1689 | |
| 1690 // k_mirror - may be primitive, this must be checked | |
| 1691 // heap_object_callback - pre-checked for NULL | |
| 1692 // user_data - NULL is a valid value, must be checked | |
| 1693 jvmtiError | |
| 1694 JvmtiEnv::IterateOverInstancesOfClass(oop k_mirror, jvmtiHeapObjectFilter object_filter, jvmtiHeapObjectCallback heap_object_callback, const void* user_data) { | |
| 1695 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 1696 // DO PRIMITIVE CLASS PROCESSING | |
| 1697 return JVMTI_ERROR_NONE; | |
| 1698 } | |
| 1699 klassOop k_oop = java_lang_Class::as_klassOop(k_mirror); | |
| 1700 if (k_oop == NULL) { | |
| 1701 return JVMTI_ERROR_INVALID_CLASS; | |
| 1702 } | |
| 1703 Thread *thread = Thread::current(); | |
| 1704 HandleMark hm(thread); | |
| 1705 KlassHandle klass (thread, k_oop); | |
| 1706 TraceTime t("IterateOverInstancesOfClass", TraceJVMTIObjectTagging); | |
| 1707 JvmtiTagMap::tag_map_for(this)->iterate_over_heap(object_filter, klass, heap_object_callback, user_data); | |
| 1708 return JVMTI_ERROR_NONE; | |
| 1709 } /* end IterateOverInstancesOfClass */ | |
| 1710 | |
| 1711 | |
| 1712 // | |
| 1713 // Local Variable functions | |
| 1714 // | |
| 1715 | |
| 1716 // Threads_lock NOT held, java_thread not protected by lock | |
| 1717 // java_thread - pre-checked | |
| 1718 // java_thread - unchecked | |
| 1719 // depth - pre-checked as non-negative | |
| 1720 // value_ptr - pre-checked for NULL | |
| 1721 jvmtiError | |
| 1722 JvmtiEnv::GetLocalObject(JavaThread* java_thread, jint depth, jint slot, jobject* value_ptr) { | |
| 1723 JavaThread* current_thread = JavaThread::current(); | |
| 1724 // rm object is created to clean up the javaVFrame created in | |
| 1725 // doit_prologue(), but after doit() is finished with it. | |
| 1726 ResourceMark rm(current_thread); | |
| 1727 | |
| 1728 VM_GetOrSetLocal op(java_thread, current_thread, depth, slot); | |
| 1729 VMThread::execute(&op); | |
| 1730 jvmtiError err = op.result(); | |
| 1731 if (err != JVMTI_ERROR_NONE) { | |
| 1732 return err; | |
| 1733 } else { | |
| 1734 *value_ptr = op.value().l; | |
| 1735 return JVMTI_ERROR_NONE; | |
| 1736 } | |
| 1737 } /* end GetLocalObject */ | |
| 1738 | |
| 1739 | |
| 1740 // Threads_lock NOT held, java_thread not protected by lock | |
| 1741 // java_thread - pre-checked | |
| 1742 // java_thread - unchecked | |
| 1743 // depth - pre-checked as non-negative | |
| 1744 // value_ptr - pre-checked for NULL | |
| 1745 jvmtiError | |
| 1746 JvmtiEnv::GetLocalInt(JavaThread* java_thread, jint depth, jint slot, jint* value_ptr) { | |
| 1747 // rm object is created to clean up the javaVFrame created in | |
| 1748 // doit_prologue(), but after doit() is finished with it. | |
| 1749 ResourceMark rm; | |
| 1750 | |
| 1751 VM_GetOrSetLocal op(java_thread, depth, slot, T_INT); | |
| 1752 VMThread::execute(&op); | |
| 1753 *value_ptr = op.value().i; | |
| 1754 return op.result(); | |
| 1755 } /* end GetLocalInt */ | |
| 1756 | |
| 1757 | |
| 1758 // Threads_lock NOT held, java_thread not protected by lock | |
| 1759 // java_thread - pre-checked | |
| 1760 // java_thread - unchecked | |
| 1761 // depth - pre-checked as non-negative | |
| 1762 // value_ptr - pre-checked for NULL | |
| 1763 jvmtiError | |
| 1764 JvmtiEnv::GetLocalLong(JavaThread* java_thread, jint depth, jint slot, jlong* value_ptr) { | |
| 1765 // rm object is created to clean up the javaVFrame created in | |
| 1766 // doit_prologue(), but after doit() is finished with it. | |
| 1767 ResourceMark rm; | |
| 1768 | |
| 1769 VM_GetOrSetLocal op(java_thread, depth, slot, T_LONG); | |
| 1770 VMThread::execute(&op); | |
| 1771 *value_ptr = op.value().j; | |
| 1772 return op.result(); | |
| 1773 } /* end GetLocalLong */ | |
| 1774 | |
| 1775 | |
| 1776 // Threads_lock NOT held, java_thread not protected by lock | |
| 1777 // java_thread - pre-checked | |
| 1778 // java_thread - unchecked | |
| 1779 // depth - pre-checked as non-negative | |
| 1780 // value_ptr - pre-checked for NULL | |
| 1781 jvmtiError | |
| 1782 JvmtiEnv::GetLocalFloat(JavaThread* java_thread, jint depth, jint slot, jfloat* value_ptr) { | |
| 1783 // rm object is created to clean up the javaVFrame created in | |
| 1784 // doit_prologue(), but after doit() is finished with it. | |
| 1785 ResourceMark rm; | |
| 1786 | |
| 1787 VM_GetOrSetLocal op(java_thread, depth, slot, T_FLOAT); | |
| 1788 VMThread::execute(&op); | |
| 1789 *value_ptr = op.value().f; | |
| 1790 return op.result(); | |
| 1791 } /* end GetLocalFloat */ | |
| 1792 | |
| 1793 | |
| 1794 // Threads_lock NOT held, java_thread not protected by lock | |
| 1795 // java_thread - pre-checked | |
| 1796 // java_thread - unchecked | |
| 1797 // depth - pre-checked as non-negative | |
| 1798 // value_ptr - pre-checked for NULL | |
| 1799 jvmtiError | |
| 1800 JvmtiEnv::GetLocalDouble(JavaThread* java_thread, jint depth, jint slot, jdouble* value_ptr) { | |
| 1801 // rm object is created to clean up the javaVFrame created in | |
| 1802 // doit_prologue(), but after doit() is finished with it. | |
| 1803 ResourceMark rm; | |
| 1804 | |
| 1805 VM_GetOrSetLocal op(java_thread, depth, slot, T_DOUBLE); | |
| 1806 VMThread::execute(&op); | |
| 1807 *value_ptr = op.value().d; | |
| 1808 return op.result(); | |
| 1809 } /* end GetLocalDouble */ | |
| 1810 | |
| 1811 | |
| 1812 // Threads_lock NOT held, java_thread not protected by lock | |
| 1813 // java_thread - pre-checked | |
| 1814 // java_thread - unchecked | |
| 1815 // depth - pre-checked as non-negative | |
| 1816 jvmtiError | |
| 1817 JvmtiEnv::SetLocalObject(JavaThread* java_thread, jint depth, jint slot, jobject value) { | |
| 1818 // rm object is created to clean up the javaVFrame created in | |
| 1819 // doit_prologue(), but after doit() is finished with it. | |
| 1820 ResourceMark rm; | |
| 1821 jvalue val; | |
| 1822 val.l = value; | |
| 1823 VM_GetOrSetLocal op(java_thread, depth, slot, T_OBJECT, val); | |
| 1824 VMThread::execute(&op); | |
| 1825 return op.result(); | |
| 1826 } /* end SetLocalObject */ | |
| 1827 | |
| 1828 | |
| 1829 // Threads_lock NOT held, java_thread not protected by lock | |
| 1830 // java_thread - pre-checked | |
| 1831 // java_thread - unchecked | |
| 1832 // depth - pre-checked as non-negative | |
| 1833 jvmtiError | |
| 1834 JvmtiEnv::SetLocalInt(JavaThread* java_thread, jint depth, jint slot, jint value) { | |
| 1835 // rm object is created to clean up the javaVFrame created in | |
| 1836 // doit_prologue(), but after doit() is finished with it. | |
| 1837 ResourceMark rm; | |
| 1838 jvalue val; | |
| 1839 val.i = value; | |
| 1840 VM_GetOrSetLocal op(java_thread, depth, slot, T_INT, val); | |
| 1841 VMThread::execute(&op); | |
| 1842 return op.result(); | |
| 1843 } /* end SetLocalInt */ | |
| 1844 | |
| 1845 | |
| 1846 // Threads_lock NOT held, java_thread not protected by lock | |
| 1847 // java_thread - pre-checked | |
| 1848 // java_thread - unchecked | |
| 1849 // depth - pre-checked as non-negative | |
| 1850 jvmtiError | |
| 1851 JvmtiEnv::SetLocalLong(JavaThread* java_thread, jint depth, jint slot, jlong value) { | |
| 1852 // rm object is created to clean up the javaVFrame created in | |
| 1853 // doit_prologue(), but after doit() is finished with it. | |
| 1854 ResourceMark rm; | |
| 1855 jvalue val; | |
| 1856 val.j = value; | |
| 1857 VM_GetOrSetLocal op(java_thread, depth, slot, T_LONG, val); | |
| 1858 VMThread::execute(&op); | |
| 1859 return op.result(); | |
| 1860 } /* end SetLocalLong */ | |
| 1861 | |
| 1862 | |
| 1863 // Threads_lock NOT held, java_thread not protected by lock | |
| 1864 // java_thread - pre-checked | |
| 1865 // java_thread - unchecked | |
| 1866 // depth - pre-checked as non-negative | |
| 1867 jvmtiError | |
| 1868 JvmtiEnv::SetLocalFloat(JavaThread* java_thread, jint depth, jint slot, jfloat value) { | |
| 1869 // rm object is created to clean up the javaVFrame created in | |
| 1870 // doit_prologue(), but after doit() is finished with it. | |
| 1871 ResourceMark rm; | |
| 1872 jvalue val; | |
| 1873 val.f = value; | |
| 1874 VM_GetOrSetLocal op(java_thread, depth, slot, T_FLOAT, val); | |
| 1875 VMThread::execute(&op); | |
| 1876 return op.result(); | |
| 1877 } /* end SetLocalFloat */ | |
| 1878 | |
| 1879 | |
| 1880 // Threads_lock NOT held, java_thread not protected by lock | |
| 1881 // java_thread - pre-checked | |
| 1882 // java_thread - unchecked | |
| 1883 // depth - pre-checked as non-negative | |
| 1884 jvmtiError | |
| 1885 JvmtiEnv::SetLocalDouble(JavaThread* java_thread, jint depth, jint slot, jdouble value) { | |
| 1886 // rm object is created to clean up the javaVFrame created in | |
| 1887 // doit_prologue(), but after doit() is finished with it. | |
| 1888 ResourceMark rm; | |
| 1889 jvalue val; | |
| 1890 val.d = value; | |
| 1891 VM_GetOrSetLocal op(java_thread, depth, slot, T_DOUBLE, val); | |
| 1892 VMThread::execute(&op); | |
| 1893 return op.result(); | |
| 1894 } /* end SetLocalDouble */ | |
| 1895 | |
| 1896 | |
| 1897 // | |
| 1898 // Breakpoint functions | |
| 1899 // | |
| 1900 | |
| 1901 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 1902 jvmtiError | |
| 1903 JvmtiEnv::SetBreakpoint(methodOop method_oop, jlocation location) { | |
| 1904 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 1905 if (location < 0) { // simple invalid location check first | |
| 1906 return JVMTI_ERROR_INVALID_LOCATION; | |
| 1907 } | |
| 1908 // verify that the breakpoint is not past the end of the method | |
| 1909 if (location >= (jlocation) method_oop->code_size()) { | |
| 1910 return JVMTI_ERROR_INVALID_LOCATION; | |
| 1911 } | |
| 1912 | |
| 1913 ResourceMark rm; | |
| 1914 JvmtiBreakpoint bp(method_oop, location); | |
| 1915 JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints(); | |
| 1916 if (jvmti_breakpoints.set(bp) == JVMTI_ERROR_DUPLICATE) | |
| 1917 return JVMTI_ERROR_DUPLICATE; | |
| 1918 | |
| 1919 if (TraceJVMTICalls) { | |
| 1920 jvmti_breakpoints.print(); | |
| 1921 } | |
| 1922 | |
| 1923 return JVMTI_ERROR_NONE; | |
| 1924 } /* end SetBreakpoint */ | |
| 1925 | |
| 1926 | |
| 1927 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 1928 jvmtiError | |
| 1929 JvmtiEnv::ClearBreakpoint(methodOop method_oop, jlocation location) { | |
| 1930 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 1931 | |
| 1932 if (location < 0) { // simple invalid location check first | |
| 1933 return JVMTI_ERROR_INVALID_LOCATION; | |
| 1934 } | |
| 1935 | |
| 1936 // verify that the breakpoint is not past the end of the method | |
| 1937 if (location >= (jlocation) method_oop->code_size()) { | |
| 1938 return JVMTI_ERROR_INVALID_LOCATION; | |
| 1939 } | |
| 1940 | |
| 1941 JvmtiBreakpoint bp(method_oop, location); | |
| 1942 | |
| 1943 JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints(); | |
| 1944 if (jvmti_breakpoints.clear(bp) == JVMTI_ERROR_NOT_FOUND) | |
| 1945 return JVMTI_ERROR_NOT_FOUND; | |
| 1946 | |
| 1947 if (TraceJVMTICalls) { | |
| 1948 jvmti_breakpoints.print(); | |
| 1949 } | |
| 1950 | |
| 1951 return JVMTI_ERROR_NONE; | |
| 1952 } /* end ClearBreakpoint */ | |
| 1953 | |
| 1954 | |
| 1955 // | |
| 1956 // Watched Field functions | |
| 1957 // | |
| 1958 | |
| 1959 jvmtiError | |
| 1960 JvmtiEnv::SetFieldAccessWatch(fieldDescriptor* fdesc_ptr) { | |
| 1961 // make sure we haven't set this watch before | |
| 1962 if (fdesc_ptr->is_field_access_watched()) return JVMTI_ERROR_DUPLICATE; | |
| 1963 fdesc_ptr->set_is_field_access_watched(true); | |
| 1964 update_klass_field_access_flag(fdesc_ptr); | |
| 1965 | |
| 1966 JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_ACCESS, true); | |
| 1967 | |
| 1968 return JVMTI_ERROR_NONE; | |
| 1969 } /* end SetFieldAccessWatch */ | |
| 1970 | |
| 1971 | |
| 1972 jvmtiError | |
| 1973 JvmtiEnv::ClearFieldAccessWatch(fieldDescriptor* fdesc_ptr) { | |
| 1974 // make sure we have a watch to clear | |
| 1975 if (!fdesc_ptr->is_field_access_watched()) return JVMTI_ERROR_NOT_FOUND; | |
| 1976 fdesc_ptr->set_is_field_access_watched(false); | |
| 1977 update_klass_field_access_flag(fdesc_ptr); | |
| 1978 | |
| 1979 JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_ACCESS, false); | |
| 1980 | |
| 1981 return JVMTI_ERROR_NONE; | |
| 1982 } /* end ClearFieldAccessWatch */ | |
| 1983 | |
| 1984 | |
| 1985 jvmtiError | |
| 1986 JvmtiEnv::SetFieldModificationWatch(fieldDescriptor* fdesc_ptr) { | |
| 1987 // make sure we haven't set this watch before | |
| 1988 if (fdesc_ptr->is_field_modification_watched()) return JVMTI_ERROR_DUPLICATE; | |
| 1989 fdesc_ptr->set_is_field_modification_watched(true); | |
| 1990 update_klass_field_access_flag(fdesc_ptr); | |
| 1991 | |
| 1992 JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_MODIFICATION, true); | |
| 1993 | |
| 1994 return JVMTI_ERROR_NONE; | |
| 1995 } /* end SetFieldModificationWatch */ | |
| 1996 | |
| 1997 | |
| 1998 jvmtiError | |
| 1999 JvmtiEnv::ClearFieldModificationWatch(fieldDescriptor* fdesc_ptr) { | |
| 2000 // make sure we have a watch to clear | |
| 2001 if (!fdesc_ptr->is_field_modification_watched()) return JVMTI_ERROR_NOT_FOUND; | |
| 2002 fdesc_ptr->set_is_field_modification_watched(false); | |
| 2003 update_klass_field_access_flag(fdesc_ptr); | |
| 2004 | |
| 2005 JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_MODIFICATION, false); | |
| 2006 | |
| 2007 return JVMTI_ERROR_NONE; | |
| 2008 } /* end ClearFieldModificationWatch */ | |
| 2009 | |
| 2010 // | |
| 2011 // Class functions | |
| 2012 // | |
| 2013 | |
| 2014 | |
| 2015 // k_mirror - may be primitive, this must be checked | |
| 2016 // signature_ptr - NULL is a valid value, must be checked | |
| 2017 // generic_ptr - NULL is a valid value, must be checked | |
| 2018 jvmtiError | |
| 2019 JvmtiEnv::GetClassSignature(oop k_mirror, char** signature_ptr, char** generic_ptr) { | |
| 2020 ResourceMark rm; | |
| 2021 bool isPrimitive = java_lang_Class::is_primitive(k_mirror); | |
| 2022 klassOop k = NULL; | |
| 2023 if (!isPrimitive) { | |
| 2024 k = java_lang_Class::as_klassOop(k_mirror); | |
| 2025 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2026 } | |
| 2027 if (signature_ptr != NULL) { | |
| 2028 char* result = NULL; | |
| 2029 if (isPrimitive) { | |
| 2030 char tchar = type2char(java_lang_Class::primitive_type(k_mirror)); | |
| 2031 result = (char*) jvmtiMalloc(2); | |
| 2032 result[0] = tchar; | |
| 2033 result[1] = '\0'; | |
| 2034 } else { | |
| 2035 const char* class_sig = Klass::cast(k)->signature_name(); | |
| 2036 result = (char *) jvmtiMalloc(strlen(class_sig)+1); | |
| 2037 strcpy(result, class_sig); | |
| 2038 } | |
| 2039 *signature_ptr = result; | |
| 2040 } | |
| 2041 if (generic_ptr != NULL) { | |
| 2042 *generic_ptr = NULL; | |
| 2043 if (!isPrimitive && Klass::cast(k)->oop_is_instance()) { | |
| 2044 symbolOop soo = instanceKlass::cast(k)->generic_signature(); | |
| 2045 if (soo != NULL) { | |
| 2046 const char *gen_sig = soo->as_C_string(); | |
| 2047 if (gen_sig != NULL) { | |
| 2048 char* gen_result; | |
| 2049 jvmtiError err = allocate(strlen(gen_sig) + 1, | |
| 2050 (unsigned char **)&gen_result); | |
| 2051 if (err != JVMTI_ERROR_NONE) { | |
| 2052 return err; | |
| 2053 } | |
| 2054 strcpy(gen_result, gen_sig); | |
| 2055 *generic_ptr = gen_result; | |
| 2056 } | |
| 2057 } | |
| 2058 } | |
| 2059 } | |
| 2060 return JVMTI_ERROR_NONE; | |
| 2061 } /* end GetClassSignature */ | |
| 2062 | |
| 2063 | |
| 2064 // k_mirror - may be primitive, this must be checked | |
| 2065 // status_ptr - pre-checked for NULL | |
| 2066 jvmtiError | |
| 2067 JvmtiEnv::GetClassStatus(oop k_mirror, jint* status_ptr) { | |
| 2068 jint result = 0; | |
| 2069 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2070 result |= JVMTI_CLASS_STATUS_PRIMITIVE; | |
| 2071 } else { | |
| 2072 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2073 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2074 result = Klass::cast(k)->jvmti_class_status(); | |
| 2075 } | |
| 2076 *status_ptr = result; | |
| 2077 | |
| 2078 return JVMTI_ERROR_NONE; | |
| 2079 } /* end GetClassStatus */ | |
| 2080 | |
| 2081 | |
| 2082 // k_mirror - may be primitive, this must be checked | |
| 2083 // source_name_ptr - pre-checked for NULL | |
| 2084 jvmtiError | |
| 2085 JvmtiEnv::GetSourceFileName(oop k_mirror, char** source_name_ptr) { | |
| 2086 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2087 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2088 } | |
| 2089 klassOop k_klass = java_lang_Class::as_klassOop(k_mirror); | |
| 2090 NULL_CHECK(k_klass, JVMTI_ERROR_INVALID_CLASS); | |
| 2091 | |
| 2092 if (!Klass::cast(k_klass)->oop_is_instance()) { | |
| 2093 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2094 } | |
| 2095 | |
| 2096 symbolOop sfnOop = instanceKlass::cast(k_klass)->source_file_name(); | |
| 2097 NULL_CHECK(sfnOop, JVMTI_ERROR_ABSENT_INFORMATION); | |
| 2098 { | |
| 2099 JavaThread* current_thread = JavaThread::current(); | |
| 2100 ResourceMark rm(current_thread); | |
| 2101 const char* sfncp = (const char*) sfnOop->as_C_string(); | |
| 2102 *source_name_ptr = (char *) jvmtiMalloc(strlen(sfncp)+1); | |
| 2103 strcpy(*source_name_ptr, sfncp); | |
| 2104 } | |
| 2105 | |
| 2106 return JVMTI_ERROR_NONE; | |
| 2107 } /* end GetSourceFileName */ | |
| 2108 | |
| 2109 | |
| 2110 // k_mirror - may be primitive, this must be checked | |
| 2111 // modifiers_ptr - pre-checked for NULL | |
| 2112 jvmtiError | |
| 2113 JvmtiEnv::GetClassModifiers(oop k_mirror, jint* modifiers_ptr) { | |
| 2114 JavaThread* current_thread = JavaThread::current(); | |
| 2115 jint result = 0; | |
| 2116 if (!java_lang_Class::is_primitive(k_mirror)) { | |
| 2117 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2118 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2119 assert((Klass::cast(k)->oop_is_instance() || Klass::cast(k)->oop_is_array()), "should be an instance or an array klass"); | |
| 2120 result = Klass::cast(k)->compute_modifier_flags(current_thread); | |
| 2121 JavaThread* THREAD = current_thread; // pass to macros | |
| 2122 if (HAS_PENDING_EXCEPTION) { | |
| 2123 CLEAR_PENDING_EXCEPTION; | |
| 2124 return JVMTI_ERROR_INTERNAL; | |
| 2125 }; | |
| 2126 | |
| 2127 // Reset the deleted ACC_SUPER bit ( deleted in compute_modifier_flags()). | |
| 2128 if(Klass::cast(k)->is_super()) { | |
| 2129 result |= JVM_ACC_SUPER; | |
| 2130 } | |
| 2131 } else { | |
| 2132 result = (JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC); | |
| 2133 } | |
| 2134 *modifiers_ptr = result; | |
| 2135 | |
| 2136 return JVMTI_ERROR_NONE; | |
| 2137 } /* end GetClassModifiers */ | |
| 2138 | |
| 2139 | |
| 2140 // k_mirror - may be primitive, this must be checked | |
| 2141 // method_count_ptr - pre-checked for NULL | |
| 2142 // methods_ptr - pre-checked for NULL | |
| 2143 jvmtiError | |
| 2144 JvmtiEnv::GetClassMethods(oop k_mirror, jint* method_count_ptr, jmethodID** methods_ptr) { | |
| 2145 JavaThread* current_thread = JavaThread::current(); | |
| 2146 HandleMark hm(current_thread); | |
| 2147 | |
| 2148 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2149 *method_count_ptr = 0; | |
| 2150 *methods_ptr = (jmethodID*) jvmtiMalloc(0 * sizeof(jmethodID)); | |
| 2151 return JVMTI_ERROR_NONE; | |
| 2152 } | |
| 2153 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2154 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2155 | |
| 2156 // Return CLASS_NOT_PREPARED error as per JVMTI spec. | |
| 2157 if (!(Klass::cast(k)->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) { | |
| 2158 return JVMTI_ERROR_CLASS_NOT_PREPARED; | |
| 2159 } | |
| 2160 | |
| 2161 if (!Klass::cast(k)->oop_is_instance()) { | |
| 2162 *method_count_ptr = 0; | |
| 2163 *methods_ptr = (jmethodID*) jvmtiMalloc(0 * sizeof(jmethodID)); | |
| 2164 return JVMTI_ERROR_NONE; | |
| 2165 } | |
| 2166 instanceKlassHandle instanceK_h(current_thread, k); | |
| 2167 // Allocate the result and fill it in | |
| 2168 int result_length = instanceK_h->methods()->length(); | |
| 2169 jmethodID* result_list = (jmethodID*)jvmtiMalloc(result_length * sizeof(jmethodID)); | |
| 2170 int index; | |
| 2171 if (JvmtiExport::can_maintain_original_method_order()) { | |
| 2172 // Use the original method ordering indices stored in the class, so we can emit | |
| 2173 // jmethodIDs in the order they appeared in the class file | |
| 2174 for (index = 0; index < result_length; index++) { | |
| 2175 methodOop m = methodOop(instanceK_h->methods()->obj_at(index)); | |
| 2176 int original_index = instanceK_h->method_ordering()->int_at(index); | |
| 2177 assert(original_index >= 0 && original_index < result_length, "invalid original method index"); | |
| 2178 jmethodID id = m->jmethod_id(); | |
| 2179 result_list[original_index] = id; | |
| 2180 } | |
| 2181 } else { | |
| 2182 // otherwise just copy in any order | |
| 2183 for (index = 0; index < result_length; index++) { | |
| 2184 methodOop m = methodOop(instanceK_h->methods()->obj_at(index)); | |
| 2185 jmethodID id = m->jmethod_id(); | |
| 2186 result_list[index] = id; | |
| 2187 } | |
| 2188 } | |
| 2189 // Fill in return value. | |
| 2190 *method_count_ptr = result_length; | |
| 2191 *methods_ptr = result_list; | |
| 2192 | |
| 2193 return JVMTI_ERROR_NONE; | |
| 2194 } /* end GetClassMethods */ | |
| 2195 | |
| 2196 | |
| 2197 // k_mirror - may be primitive, this must be checked | |
| 2198 // field_count_ptr - pre-checked for NULL | |
| 2199 // fields_ptr - pre-checked for NULL | |
| 2200 jvmtiError | |
| 2201 JvmtiEnv::GetClassFields(oop k_mirror, jint* field_count_ptr, jfieldID** fields_ptr) { | |
| 2202 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2203 *field_count_ptr = 0; | |
| 2204 *fields_ptr = (jfieldID*) jvmtiMalloc(0 * sizeof(jfieldID)); | |
| 2205 return JVMTI_ERROR_NONE; | |
| 2206 } | |
| 2207 JavaThread* current_thread = JavaThread::current(); | |
| 2208 HandleMark hm(current_thread); | |
| 2209 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2210 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2211 | |
| 2212 // Return CLASS_NOT_PREPARED error as per JVMTI spec. | |
| 2213 if (!(Klass::cast(k)->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) { | |
| 2214 return JVMTI_ERROR_CLASS_NOT_PREPARED; | |
| 2215 } | |
| 2216 | |
| 2217 if (!Klass::cast(k)->oop_is_instance()) { | |
| 2218 *field_count_ptr = 0; | |
| 2219 *fields_ptr = (jfieldID*) jvmtiMalloc(0 * sizeof(jfieldID)); | |
| 2220 return JVMTI_ERROR_NONE; | |
| 2221 } | |
| 2222 | |
| 2223 | |
| 2224 instanceKlassHandle instanceK_h(current_thread, k); | |
| 2225 | |
| 2226 int result_count = 0; | |
| 2227 // First, count the fields. | |
| 2228 FilteredFieldStream flds(instanceK_h, true, true); | |
| 2229 result_count = flds.field_count(); | |
| 2230 | |
| 2231 // Allocate the result and fill it in | |
| 2232 jfieldID* result_list = (jfieldID*) jvmtiMalloc(result_count * sizeof(jfieldID)); | |
| 2233 // The JVMTI spec requires fields in the order they occur in the class file, | |
| 2234 // this is the reverse order of what FieldStream hands out. | |
| 2235 int id_index = (result_count - 1); | |
| 2236 | |
| 2237 for (FilteredFieldStream src_st(instanceK_h, true, true); !src_st.eos(); src_st.next()) { | |
| 2238 result_list[id_index--] = jfieldIDWorkaround::to_jfieldID( | |
| 2239 instanceK_h, src_st.offset(), | |
| 2240 src_st.access_flags().is_static()); | |
| 2241 } | |
| 2242 assert(id_index == -1, "just checking"); | |
| 2243 // Fill in the results | |
| 2244 *field_count_ptr = result_count; | |
| 2245 *fields_ptr = result_list; | |
| 2246 | |
| 2247 return JVMTI_ERROR_NONE; | |
| 2248 } /* end GetClassFields */ | |
| 2249 | |
| 2250 | |
| 2251 // k_mirror - may be primitive, this must be checked | |
| 2252 // interface_count_ptr - pre-checked for NULL | |
| 2253 // interfaces_ptr - pre-checked for NULL | |
| 2254 jvmtiError | |
| 2255 JvmtiEnv::GetImplementedInterfaces(oop k_mirror, jint* interface_count_ptr, jclass** interfaces_ptr) { | |
| 2256 { | |
| 2257 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2258 *interface_count_ptr = 0; | |
| 2259 *interfaces_ptr = (jclass*) jvmtiMalloc(0 * sizeof(jclass)); | |
| 2260 return JVMTI_ERROR_NONE; | |
| 2261 } | |
| 2262 JavaThread* current_thread = JavaThread::current(); | |
| 2263 HandleMark hm(current_thread); | |
| 2264 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2265 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2266 | |
| 2267 // Return CLASS_NOT_PREPARED error as per JVMTI spec. | |
| 2268 if (!(Klass::cast(k)->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) | |
| 2269 return JVMTI_ERROR_CLASS_NOT_PREPARED; | |
| 2270 | |
| 2271 if (!Klass::cast(k)->oop_is_instance()) { | |
| 2272 *interface_count_ptr = 0; | |
| 2273 *interfaces_ptr = (jclass*) jvmtiMalloc(0 * sizeof(jclass)); | |
| 2274 return JVMTI_ERROR_NONE; | |
| 2275 } | |
| 2276 | |
| 2277 objArrayHandle interface_list(current_thread, instanceKlass::cast(k)->local_interfaces()); | |
| 2278 const int result_length = (interface_list.is_null() ? 0 : interface_list->length()); | |
| 2279 jclass* result_list = (jclass*) jvmtiMalloc(result_length * sizeof(jclass)); | |
| 2280 for (int i_index = 0; i_index < result_length; i_index += 1) { | |
| 2281 oop oop_at = interface_list->obj_at(i_index); | |
| 2282 assert(oop_at->is_klass(), "interfaces must be klassOops"); | |
| 2283 klassOop klassOop_at = klassOop(oop_at); // ???: is there a better way? | |
| 2284 assert(Klass::cast(klassOop_at)->is_interface(), "interfaces must be interfaces"); | |
| 2285 oop mirror_at = Klass::cast(klassOop_at)->java_mirror(); | |
| 2286 Handle handle_at = Handle(current_thread, mirror_at); | |
| 2287 result_list[i_index] = (jclass) jni_reference(handle_at); | |
| 2288 } | |
| 2289 *interface_count_ptr = result_length; | |
| 2290 *interfaces_ptr = result_list; | |
| 2291 } | |
| 2292 | |
| 2293 return JVMTI_ERROR_NONE; | |
| 2294 } /* end GetImplementedInterfaces */ | |
| 2295 | |
| 2296 | |
| 2297 // k_mirror - may be primitive, this must be checked | |
| 2298 // minor_version_ptr - pre-checked for NULL | |
| 2299 // major_version_ptr - pre-checked for NULL | |
| 2300 jvmtiError | |
| 2301 JvmtiEnv::GetClassVersionNumbers(oop k_mirror, jint* minor_version_ptr, jint* major_version_ptr) { | |
| 2302 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2303 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2304 } | |
| 2305 klassOop k_oop = java_lang_Class::as_klassOop(k_mirror); | |
| 2306 Thread *thread = Thread::current(); | |
| 2307 HandleMark hm(thread); | |
| 2308 KlassHandle klass(thread, k_oop); | |
| 2309 | |
| 2310 jint status = klass->jvmti_class_status(); | |
| 2311 if (status & (JVMTI_CLASS_STATUS_ERROR)) { | |
| 2312 return JVMTI_ERROR_INVALID_CLASS; | |
| 2313 } | |
| 2314 if (status & (JVMTI_CLASS_STATUS_ARRAY)) { | |
| 2315 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2316 } | |
| 2317 | |
| 2318 instanceKlassHandle ik(thread, k_oop); | |
| 2319 *minor_version_ptr = ik->minor_version(); | |
| 2320 *major_version_ptr = ik->major_version(); | |
| 2321 | |
| 2322 return JVMTI_ERROR_NONE; | |
| 2323 } /* end GetClassVersionNumbers */ | |
| 2324 | |
| 2325 | |
| 2326 // k_mirror - may be primitive, this must be checked | |
| 2327 // constant_pool_count_ptr - pre-checked for NULL | |
| 2328 // constant_pool_byte_count_ptr - pre-checked for NULL | |
| 2329 // constant_pool_bytes_ptr - pre-checked for NULL | |
| 2330 jvmtiError | |
| 2331 JvmtiEnv::GetConstantPool(oop k_mirror, jint* constant_pool_count_ptr, jint* constant_pool_byte_count_ptr, unsigned char** constant_pool_bytes_ptr) { | |
| 2332 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2333 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2334 } | |
| 2335 | |
| 2336 klassOop k_oop = java_lang_Class::as_klassOop(k_mirror); | |
| 2337 Thread *thread = Thread::current(); | |
| 2338 HandleMark hm(thread); | |
| 2339 ResourceMark rm(thread); | |
| 2340 KlassHandle klass(thread, k_oop); | |
| 2341 | |
| 2342 jint status = klass->jvmti_class_status(); | |
| 2343 if (status & (JVMTI_CLASS_STATUS_ERROR)) { | |
| 2344 return JVMTI_ERROR_INVALID_CLASS; | |
| 2345 } | |
| 2346 if (status & (JVMTI_CLASS_STATUS_ARRAY)) { | |
| 2347 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2348 } | |
| 2349 | |
| 2350 instanceKlassHandle ikh(thread, k_oop); | |
| 2351 constantPoolHandle constants(thread, ikh->constants()); | |
| 2352 ObjectLocker ol(constants, thread); // lock constant pool while we query it | |
| 2353 | |
| 2354 JvmtiConstantPoolReconstituter reconstituter(ikh); | |
| 2355 if (reconstituter.get_error() != JVMTI_ERROR_NONE) { | |
| 2356 return reconstituter.get_error(); | |
| 2357 } | |
| 2358 | |
| 2359 unsigned char *cpool_bytes; | |
| 2360 int cpool_size = reconstituter.cpool_size(); | |
| 2361 if (reconstituter.get_error() != JVMTI_ERROR_NONE) { | |
| 2362 return reconstituter.get_error(); | |
| 2363 } | |
| 2364 jvmtiError res = allocate(cpool_size, &cpool_bytes); | |
| 2365 if (res != JVMTI_ERROR_NONE) { | |
| 2366 return res; | |
| 2367 } | |
| 2368 reconstituter.copy_cpool_bytes(cpool_bytes); | |
| 2369 if (reconstituter.get_error() != JVMTI_ERROR_NONE) { | |
| 2370 return reconstituter.get_error(); | |
| 2371 } | |
| 2372 | |
| 2373 *constant_pool_count_ptr = constants->length(); | |
| 2374 *constant_pool_byte_count_ptr = cpool_size; | |
| 2375 *constant_pool_bytes_ptr = cpool_bytes; | |
| 2376 | |
| 2377 return JVMTI_ERROR_NONE; | |
| 2378 } /* end GetConstantPool */ | |
| 2379 | |
| 2380 | |
| 2381 // k_mirror - may be primitive, this must be checked | |
| 2382 // is_interface_ptr - pre-checked for NULL | |
| 2383 jvmtiError | |
| 2384 JvmtiEnv::IsInterface(oop k_mirror, jboolean* is_interface_ptr) { | |
| 2385 { | |
| 2386 bool result = false; | |
| 2387 if (!java_lang_Class::is_primitive(k_mirror)) { | |
| 2388 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2389 if (k != NULL && Klass::cast(k)->is_interface()) { | |
| 2390 result = true; | |
| 2391 } | |
| 2392 } | |
| 2393 *is_interface_ptr = result; | |
| 2394 } | |
| 2395 | |
| 2396 return JVMTI_ERROR_NONE; | |
| 2397 } /* end IsInterface */ | |
| 2398 | |
| 2399 | |
| 2400 // k_mirror - may be primitive, this must be checked | |
| 2401 // is_array_class_ptr - pre-checked for NULL | |
| 2402 jvmtiError | |
| 2403 JvmtiEnv::IsArrayClass(oop k_mirror, jboolean* is_array_class_ptr) { | |
| 2404 { | |
| 2405 bool result = false; | |
| 2406 if (!java_lang_Class::is_primitive(k_mirror)) { | |
| 2407 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2408 if (k != NULL && Klass::cast(k)->oop_is_array()) { | |
| 2409 result = true; | |
| 2410 } | |
| 2411 } | |
| 2412 *is_array_class_ptr = result; | |
| 2413 } | |
| 2414 | |
| 2415 return JVMTI_ERROR_NONE; | |
| 2416 } /* end IsArrayClass */ | |
| 2417 | |
| 2418 | |
| 2419 // k_mirror - may be primitive, this must be checked | |
| 2420 // classloader_ptr - pre-checked for NULL | |
| 2421 jvmtiError | |
| 2422 JvmtiEnv::GetClassLoader(oop k_mirror, jobject* classloader_ptr) { | |
| 2423 { | |
| 2424 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2425 *classloader_ptr = (jclass) jni_reference(Handle()); | |
| 2426 return JVMTI_ERROR_NONE; | |
| 2427 } | |
| 2428 JavaThread* current_thread = JavaThread::current(); | |
| 2429 HandleMark hm(current_thread); | |
| 2430 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2431 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2432 | |
| 2433 oop result_oop = Klass::cast(k)->class_loader(); | |
| 2434 if (result_oop == NULL) { | |
| 2435 *classloader_ptr = (jclass) jni_reference(Handle()); | |
| 2436 return JVMTI_ERROR_NONE; | |
| 2437 } | |
| 2438 Handle result_handle = Handle(current_thread, result_oop); | |
| 2439 jclass result_jnihandle = (jclass) jni_reference(result_handle); | |
| 2440 *classloader_ptr = result_jnihandle; | |
| 2441 } | |
| 2442 return JVMTI_ERROR_NONE; | |
| 2443 } /* end GetClassLoader */ | |
| 2444 | |
| 2445 | |
| 2446 // k_mirror - may be primitive, this must be checked | |
| 2447 // source_debug_extension_ptr - pre-checked for NULL | |
| 2448 jvmtiError | |
| 2449 JvmtiEnv::GetSourceDebugExtension(oop k_mirror, char** source_debug_extension_ptr) { | |
| 2450 { | |
| 2451 if (java_lang_Class::is_primitive(k_mirror)) { | |
| 2452 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2453 } | |
| 2454 klassOop k = java_lang_Class::as_klassOop(k_mirror); | |
| 2455 NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); | |
| 2456 if (!Klass::cast(k)->oop_is_instance()) { | |
| 2457 return JVMTI_ERROR_ABSENT_INFORMATION; | |
| 2458 } | |
| 2459 symbolOop sdeOop = instanceKlass::cast(k)->source_debug_extension(); | |
| 2460 NULL_CHECK(sdeOop, JVMTI_ERROR_ABSENT_INFORMATION); | |
| 2461 | |
| 2462 { | |
| 2463 JavaThread* current_thread = JavaThread::current(); | |
| 2464 ResourceMark rm(current_thread); | |
| 2465 const char* sdecp = (const char*) sdeOop->as_C_string(); | |
| 2466 *source_debug_extension_ptr = (char *) jvmtiMalloc(strlen(sdecp)+1); | |
| 2467 strcpy(*source_debug_extension_ptr, sdecp); | |
| 2468 } | |
| 2469 } | |
| 2470 | |
| 2471 return JVMTI_ERROR_NONE; | |
| 2472 } /* end GetSourceDebugExtension */ | |
| 2473 | |
| 2474 // | |
| 2475 // Object functions | |
| 2476 // | |
| 2477 | |
| 2478 // hash_code_ptr - pre-checked for NULL | |
| 2479 jvmtiError | |
| 2480 JvmtiEnv::GetObjectHashCode(jobject object, jint* hash_code_ptr) { | |
| 2481 oop mirror = JNIHandles::resolve_external_guard(object); | |
| 2482 NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT); | |
| 2483 NULL_CHECK(hash_code_ptr, JVMTI_ERROR_NULL_POINTER); | |
| 2484 | |
| 2485 { | |
| 2486 jint result = (jint) mirror->identity_hash(); | |
| 2487 *hash_code_ptr = result; | |
| 2488 } | |
| 2489 return JVMTI_ERROR_NONE; | |
| 2490 } /* end GetObjectHashCode */ | |
| 2491 | |
| 2492 | |
| 2493 // info_ptr - pre-checked for NULL | |
| 2494 jvmtiError | |
| 2495 JvmtiEnv::GetObjectMonitorUsage(jobject object, jvmtiMonitorUsage* info_ptr) { | |
| 2496 JavaThread* calling_thread = JavaThread::current(); | |
| 2497 jvmtiError err = get_object_monitor_usage(calling_thread, object, info_ptr); | |
| 2498 if (err == JVMTI_ERROR_THREAD_NOT_SUSPENDED) { | |
| 2499 // Some of the critical threads were not suspended. go to a safepoint and try again | |
| 2500 VM_GetObjectMonitorUsage op(this, calling_thread, object, info_ptr); | |
| 2501 VMThread::execute(&op); | |
| 2502 err = op.result(); | |
| 2503 } | |
| 2504 return err; | |
| 2505 } /* end GetObjectMonitorUsage */ | |
| 2506 | |
| 2507 | |
| 2508 // | |
| 2509 // Field functions | |
| 2510 // | |
| 2511 | |
| 2512 // name_ptr - NULL is a valid value, must be checked | |
| 2513 // signature_ptr - NULL is a valid value, must be checked | |
| 2514 // generic_ptr - NULL is a valid value, must be checked | |
| 2515 jvmtiError | |
| 2516 JvmtiEnv::GetFieldName(fieldDescriptor* fdesc_ptr, char** name_ptr, char** signature_ptr, char** generic_ptr) { | |
| 2517 JavaThread* current_thread = JavaThread::current(); | |
| 2518 ResourceMark rm(current_thread); | |
| 2519 if (name_ptr == NULL) { | |
| 2520 // just don't return the name | |
| 2521 } else { | |
| 2522 const char* fieldName = fdesc_ptr->name()->as_C_string(); | |
| 2523 *name_ptr = (char*) jvmtiMalloc(strlen(fieldName) + 1); | |
| 2524 if (*name_ptr == NULL) | |
| 2525 return JVMTI_ERROR_OUT_OF_MEMORY; | |
| 2526 strcpy(*name_ptr, fieldName); | |
| 2527 } | |
| 2528 if (signature_ptr== NULL) { | |
| 2529 // just don't return the signature | |
| 2530 } else { | |
| 2531 const char* fieldSignature = fdesc_ptr->signature()->as_C_string(); | |
| 2532 *signature_ptr = (char*) jvmtiMalloc(strlen(fieldSignature) + 1); | |
| 2533 if (*signature_ptr == NULL) | |
| 2534 return JVMTI_ERROR_OUT_OF_MEMORY; | |
| 2535 strcpy(*signature_ptr, fieldSignature); | |
| 2536 } | |
| 2537 if (generic_ptr != NULL) { | |
| 2538 *generic_ptr = NULL; | |
| 2539 symbolOop soop = fdesc_ptr->generic_signature(); | |
| 2540 if (soop != NULL) { | |
| 2541 const char* gen_sig = soop->as_C_string(); | |
| 2542 if (gen_sig != NULL) { | |
| 2543 jvmtiError err = allocate(strlen(gen_sig) + 1, (unsigned char **)generic_ptr); | |
| 2544 if (err != JVMTI_ERROR_NONE) { | |
| 2545 return err; | |
| 2546 } | |
| 2547 strcpy(*generic_ptr, gen_sig); | |
| 2548 } | |
| 2549 } | |
| 2550 } | |
| 2551 return JVMTI_ERROR_NONE; | |
| 2552 } /* end GetFieldName */ | |
| 2553 | |
| 2554 | |
| 2555 // declaring_class_ptr - pre-checked for NULL | |
| 2556 jvmtiError | |
| 2557 JvmtiEnv::GetFieldDeclaringClass(fieldDescriptor* fdesc_ptr, jclass* declaring_class_ptr) { | |
| 2558 | |
| 2559 *declaring_class_ptr = get_jni_class_non_null(fdesc_ptr->field_holder()); | |
| 2560 return JVMTI_ERROR_NONE; | |
| 2561 } /* end GetFieldDeclaringClass */ | |
| 2562 | |
| 2563 | |
| 2564 // modifiers_ptr - pre-checked for NULL | |
| 2565 jvmtiError | |
| 2566 JvmtiEnv::GetFieldModifiers(fieldDescriptor* fdesc_ptr, jint* modifiers_ptr) { | |
| 2567 | |
| 2568 AccessFlags resultFlags = fdesc_ptr->access_flags(); | |
| 2569 jint result = resultFlags.as_int(); | |
| 2570 *modifiers_ptr = result; | |
| 2571 | |
| 2572 return JVMTI_ERROR_NONE; | |
| 2573 } /* end GetFieldModifiers */ | |
| 2574 | |
| 2575 | |
| 2576 // is_synthetic_ptr - pre-checked for NULL | |
| 2577 jvmtiError | |
| 2578 JvmtiEnv::IsFieldSynthetic(fieldDescriptor* fdesc_ptr, jboolean* is_synthetic_ptr) { | |
| 2579 *is_synthetic_ptr = fdesc_ptr->is_synthetic(); | |
| 2580 return JVMTI_ERROR_NONE; | |
| 2581 } /* end IsFieldSynthetic */ | |
| 2582 | |
| 2583 | |
| 2584 // | |
| 2585 // Method functions | |
| 2586 // | |
| 2587 | |
| 2588 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2589 // name_ptr - NULL is a valid value, must be checked | |
| 2590 // signature_ptr - NULL is a valid value, must be checked | |
| 2591 // generic_ptr - NULL is a valid value, must be checked | |
| 2592 jvmtiError | |
| 2593 JvmtiEnv::GetMethodName(methodOop method_oop, char** name_ptr, char** signature_ptr, char** generic_ptr) { | |
| 2594 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2595 JavaThread* current_thread = JavaThread::current(); | |
| 2596 | |
| 2597 ResourceMark rm(current_thread); // get the utf8 name and signature | |
| 2598 if (name_ptr == NULL) { | |
| 2599 // just don't return the name | |
| 2600 } else { | |
| 2601 const char* utf8_name = (const char *) method_oop->name()->as_utf8(); | |
| 2602 *name_ptr = (char *) jvmtiMalloc(strlen(utf8_name)+1); | |
| 2603 strcpy(*name_ptr, utf8_name); | |
| 2604 } | |
| 2605 if (signature_ptr == NULL) { | |
| 2606 // just don't return the signature | |
| 2607 } else { | |
| 2608 const char* utf8_signature = (const char *) method_oop->signature()->as_utf8(); | |
| 2609 *signature_ptr = (char *) jvmtiMalloc(strlen(utf8_signature) + 1); | |
| 2610 strcpy(*signature_ptr, utf8_signature); | |
| 2611 } | |
| 2612 | |
| 2613 if (generic_ptr != NULL) { | |
| 2614 *generic_ptr = NULL; | |
| 2615 symbolOop soop = method_oop->generic_signature(); | |
| 2616 if (soop != NULL) { | |
| 2617 const char* gen_sig = soop->as_C_string(); | |
| 2618 if (gen_sig != NULL) { | |
| 2619 jvmtiError err = allocate(strlen(gen_sig) + 1, (unsigned char **)generic_ptr); | |
| 2620 if (err != JVMTI_ERROR_NONE) { | |
| 2621 return err; | |
| 2622 } | |
| 2623 strcpy(*generic_ptr, gen_sig); | |
| 2624 } | |
| 2625 } | |
| 2626 } | |
| 2627 return JVMTI_ERROR_NONE; | |
| 2628 } /* end GetMethodName */ | |
| 2629 | |
| 2630 | |
| 2631 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2632 // declaring_class_ptr - pre-checked for NULL | |
| 2633 jvmtiError | |
| 2634 JvmtiEnv::GetMethodDeclaringClass(methodOop method_oop, jclass* declaring_class_ptr) { | |
| 2635 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2636 (*declaring_class_ptr) = get_jni_class_non_null(method_oop->method_holder()); | |
| 2637 return JVMTI_ERROR_NONE; | |
| 2638 } /* end GetMethodDeclaringClass */ | |
| 2639 | |
| 2640 | |
| 2641 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2642 // modifiers_ptr - pre-checked for NULL | |
| 2643 jvmtiError | |
| 2644 JvmtiEnv::GetMethodModifiers(methodOop method_oop, jint* modifiers_ptr) { | |
| 2645 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2646 (*modifiers_ptr) = method_oop->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; | |
| 2647 return JVMTI_ERROR_NONE; | |
| 2648 } /* end GetMethodModifiers */ | |
| 2649 | |
| 2650 | |
| 2651 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2652 // max_ptr - pre-checked for NULL | |
| 2653 jvmtiError | |
| 2654 JvmtiEnv::GetMaxLocals(methodOop method_oop, jint* max_ptr) { | |
| 2655 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2656 // get max stack | |
| 2657 (*max_ptr) = method_oop->max_locals(); | |
| 2658 return JVMTI_ERROR_NONE; | |
| 2659 } /* end GetMaxLocals */ | |
| 2660 | |
| 2661 | |
| 2662 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2663 // size_ptr - pre-checked for NULL | |
| 2664 jvmtiError | |
| 2665 JvmtiEnv::GetArgumentsSize(methodOop method_oop, jint* size_ptr) { | |
| 2666 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2667 // get size of arguments | |
| 2668 | |
| 2669 (*size_ptr) = method_oop->size_of_parameters(); | |
| 2670 return JVMTI_ERROR_NONE; | |
| 2671 } /* end GetArgumentsSize */ | |
| 2672 | |
| 2673 | |
| 2674 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2675 // entry_count_ptr - pre-checked for NULL | |
| 2676 // table_ptr - pre-checked for NULL | |
| 2677 jvmtiError | |
| 2678 JvmtiEnv::GetLineNumberTable(methodOop method_oop, jint* entry_count_ptr, jvmtiLineNumberEntry** table_ptr) { | |
| 2679 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2680 if (!method_oop->has_linenumber_table()) { | |
| 2681 return (JVMTI_ERROR_ABSENT_INFORMATION); | |
| 2682 } | |
| 2683 | |
| 2684 // The line number table is compressed so we don't know how big it is until decompressed. | |
| 2685 // Decompression is really fast so we just do it twice. | |
| 2686 | |
| 2687 // Compute size of table | |
| 2688 jint num_entries = 0; | |
| 2689 CompressedLineNumberReadStream stream(method_oop->compressed_linenumber_table()); | |
| 2690 while (stream.read_pair()) { | |
| 2691 num_entries++; | |
| 2692 } | |
| 2693 jvmtiLineNumberEntry *jvmti_table = | |
| 2694 (jvmtiLineNumberEntry *)jvmtiMalloc(num_entries * (sizeof(jvmtiLineNumberEntry))); | |
| 2695 | |
| 2696 // Fill jvmti table | |
| 2697 if (num_entries > 0) { | |
| 2698 int index = 0; | |
| 2699 CompressedLineNumberReadStream stream(method_oop->compressed_linenumber_table()); | |
| 2700 while (stream.read_pair()) { | |
| 2701 jvmti_table[index].start_location = (jlocation) stream.bci(); | |
| 2702 jvmti_table[index].line_number = (jint) stream.line(); | |
| 2703 index++; | |
| 2704 } | |
| 2705 assert(index == num_entries, "sanity check"); | |
| 2706 } | |
| 2707 | |
| 2708 // Set up results | |
| 2709 (*entry_count_ptr) = num_entries; | |
| 2710 (*table_ptr) = jvmti_table; | |
| 2711 | |
| 2712 return JVMTI_ERROR_NONE; | |
| 2713 } /* end GetLineNumberTable */ | |
| 2714 | |
| 2715 | |
| 2716 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2717 // start_location_ptr - pre-checked for NULL | |
| 2718 // end_location_ptr - pre-checked for NULL | |
| 2719 jvmtiError | |
| 2720 JvmtiEnv::GetMethodLocation(methodOop method_oop, jlocation* start_location_ptr, jlocation* end_location_ptr) { | |
| 2721 | |
| 2722 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2723 // get start and end location | |
| 2724 (*end_location_ptr) = (jlocation) (method_oop->code_size() - 1); | |
| 2725 if (method_oop->code_size() == 0) { | |
| 2726 // there is no code so there is no start location | |
| 2727 (*start_location_ptr) = (jlocation)(-1); | |
| 2728 } else { | |
| 2729 (*start_location_ptr) = (jlocation)(0); | |
| 2730 } | |
| 2731 | |
| 2732 return JVMTI_ERROR_NONE; | |
| 2733 } /* end GetMethodLocation */ | |
| 2734 | |
| 2735 | |
| 2736 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2737 // entry_count_ptr - pre-checked for NULL | |
| 2738 // table_ptr - pre-checked for NULL | |
| 2739 jvmtiError | |
| 2740 JvmtiEnv::GetLocalVariableTable(methodOop method_oop, jint* entry_count_ptr, jvmtiLocalVariableEntry** table_ptr) { | |
| 2741 | |
| 2742 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2743 JavaThread* current_thread = JavaThread::current(); | |
| 2744 | |
| 2745 // does the klass have any local variable information? | |
| 2746 instanceKlass* ik = instanceKlass::cast(method_oop->method_holder()); | |
| 2747 if (!ik->access_flags().has_localvariable_table()) { | |
| 2748 return (JVMTI_ERROR_ABSENT_INFORMATION); | |
| 2749 } | |
| 2750 | |
| 2751 constantPoolOop constants = method_oop->constants(); | |
| 2752 NULL_CHECK(constants, JVMTI_ERROR_ABSENT_INFORMATION); | |
| 2753 | |
| 2754 // in the vm localvariable table representation, 6 consecutive elements in the table | |
| 2755 // represent a 6-tuple of shorts | |
| 2756 // [start_pc, length, name_index, descriptor_index, signature_index, index] | |
| 2757 jint num_entries = method_oop->localvariable_table_length(); | |
| 2758 jvmtiLocalVariableEntry *jvmti_table = (jvmtiLocalVariableEntry *) | |
| 2759 jvmtiMalloc(num_entries * (sizeof(jvmtiLocalVariableEntry))); | |
| 2760 | |
| 2761 if (num_entries > 0) { | |
| 2762 LocalVariableTableElement* table = method_oop->localvariable_table_start(); | |
| 2763 for (int i = 0; i < num_entries; i++) { | |
| 2764 // get the 5 tuple information from the vm table | |
| 2765 jlocation start_location = (jlocation) table[i].start_bci; | |
| 2766 jint length = (jint) table[i].length; | |
| 2767 int name_index = (int) table[i].name_cp_index; | |
| 2768 int signature_index = (int) table[i].descriptor_cp_index; | |
| 2769 int generic_signature_index = (int) table[i].signature_cp_index; | |
| 2770 jint slot = (jint) table[i].slot; | |
| 2771 | |
| 2772 // get utf8 name and signature | |
| 2773 char *name_buf = NULL; | |
| 2774 char *sig_buf = NULL; | |
| 2775 char *gen_sig_buf = NULL; | |
| 2776 { | |
| 2777 ResourceMark rm(current_thread); | |
| 2778 | |
| 2779 const char *utf8_name = (const char *) constants->symbol_at(name_index)->as_utf8(); | |
| 2780 name_buf = (char *) jvmtiMalloc(strlen(utf8_name)+1); | |
| 2781 strcpy(name_buf, utf8_name); | |
| 2782 | |
| 2783 const char *utf8_signature = (const char *) constants->symbol_at(signature_index)->as_utf8(); | |
| 2784 sig_buf = (char *) jvmtiMalloc(strlen(utf8_signature)+1); | |
| 2785 strcpy(sig_buf, utf8_signature); | |
| 2786 | |
| 2787 if (generic_signature_index > 0) { | |
| 2788 const char *utf8_gen_sign = (const char *) | |
| 2789 constants->symbol_at(generic_signature_index)->as_utf8(); | |
| 2790 gen_sig_buf = (char *) jvmtiMalloc(strlen(utf8_gen_sign)+1); | |
| 2791 strcpy(gen_sig_buf, utf8_gen_sign); | |
| 2792 } | |
| 2793 } | |
| 2794 | |
| 2795 // fill in the jvmti local variable table | |
| 2796 jvmti_table[i].start_location = start_location; | |
| 2797 jvmti_table[i].length = length; | |
| 2798 jvmti_table[i].name = name_buf; | |
| 2799 jvmti_table[i].signature = sig_buf; | |
| 2800 jvmti_table[i].generic_signature = gen_sig_buf; | |
| 2801 jvmti_table[i].slot = slot; | |
| 2802 } | |
| 2803 } | |
| 2804 | |
| 2805 // set results | |
| 2806 (*entry_count_ptr) = num_entries; | |
| 2807 (*table_ptr) = jvmti_table; | |
| 2808 | |
| 2809 return JVMTI_ERROR_NONE; | |
| 2810 } /* end GetLocalVariableTable */ | |
| 2811 | |
| 2812 | |
| 2813 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2814 // bytecode_count_ptr - pre-checked for NULL | |
| 2815 // bytecodes_ptr - pre-checked for NULL | |
| 2816 jvmtiError | |
| 2817 JvmtiEnv::GetBytecodes(methodOop method_oop, jint* bytecode_count_ptr, unsigned char** bytecodes_ptr) { | |
| 2818 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2819 | |
| 2820 HandleMark hm; | |
| 2821 methodHandle method(method_oop); | |
| 2822 jint size = (jint)method->code_size(); | |
| 2823 jvmtiError err = allocate(size, bytecodes_ptr); | |
| 2824 if (err != JVMTI_ERROR_NONE) { | |
| 2825 return err; | |
| 2826 } | |
| 2827 | |
| 2828 (*bytecode_count_ptr) = size; | |
| 2829 // get byte codes | |
| 2830 JvmtiClassFileReconstituter::copy_bytecodes(method, *bytecodes_ptr); | |
| 2831 | |
| 2832 return JVMTI_ERROR_NONE; | |
| 2833 } /* end GetBytecodes */ | |
| 2834 | |
| 2835 | |
| 2836 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2837 // is_native_ptr - pre-checked for NULL | |
| 2838 jvmtiError | |
| 2839 JvmtiEnv::IsMethodNative(methodOop method_oop, jboolean* is_native_ptr) { | |
| 2840 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2841 (*is_native_ptr) = method_oop->is_native(); | |
| 2842 return JVMTI_ERROR_NONE; | |
| 2843 } /* end IsMethodNative */ | |
| 2844 | |
| 2845 | |
| 2846 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2847 // is_synthetic_ptr - pre-checked for NULL | |
| 2848 jvmtiError | |
| 2849 JvmtiEnv::IsMethodSynthetic(methodOop method_oop, jboolean* is_synthetic_ptr) { | |
| 2850 NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); | |
| 2851 (*is_synthetic_ptr) = method_oop->is_synthetic(); | |
| 2852 return JVMTI_ERROR_NONE; | |
| 2853 } /* end IsMethodSynthetic */ | |
| 2854 | |
| 2855 | |
| 2856 // method_oop - pre-checked for validity, but may be NULL meaning obsolete method | |
| 2857 // is_obsolete_ptr - pre-checked for NULL | |
| 2858 jvmtiError | |
| 2859 JvmtiEnv::IsMethodObsolete(methodOop method_oop, jboolean* is_obsolete_ptr) { | |
| 2860 if (method_oop == NULL || method_oop->is_obsolete()) { | |
| 2861 *is_obsolete_ptr = true; | |
| 2862 } else { | |
| 2863 *is_obsolete_ptr = false; | |
| 2864 } | |
| 2865 return JVMTI_ERROR_NONE; | |
| 2866 } /* end IsMethodObsolete */ | |
| 2867 | |
| 2868 // | |
| 2869 // Raw Monitor functions | |
| 2870 // | |
| 2871 | |
| 2872 // name - pre-checked for NULL | |
| 2873 // monitor_ptr - pre-checked for NULL | |
| 2874 jvmtiError | |
| 2875 JvmtiEnv::CreateRawMonitor(const char* name, jrawMonitorID* monitor_ptr) { | |
| 2876 JvmtiRawMonitor* rmonitor = new JvmtiRawMonitor(name); | |
| 2877 NULL_CHECK(rmonitor, JVMTI_ERROR_OUT_OF_MEMORY); | |
| 2878 | |
| 2879 *monitor_ptr = (jrawMonitorID)rmonitor; | |
| 2880 | |
| 2881 return JVMTI_ERROR_NONE; | |
| 2882 } /* end CreateRawMonitor */ | |
| 2883 | |
| 2884 | |
| 2885 // rmonitor - pre-checked for validity | |
| 2886 jvmtiError | |
| 2887 JvmtiEnv::DestroyRawMonitor(JvmtiRawMonitor * rmonitor) { | |
| 2888 if (Threads::number_of_threads() == 0) { | |
| 2889 // Remove this monitor from pending raw monitors list | |
| 2890 // if it has entered in onload or start phase. | |
| 2891 JvmtiPendingMonitors::destroy(rmonitor); | |
| 2892 } else { | |
| 2893 Thread* thread = Thread::current(); | |
| 2894 if (rmonitor->is_entered(thread)) { | |
| 2895 // The caller owns this monitor which we are about to destroy. | |
| 2896 // We exit the underlying synchronization object so that the | |
| 2897 // "delete monitor" call below can work without an assertion | |
| 2898 // failure on systems that don't like destroying synchronization | |
| 2899 // objects that are locked. | |
| 2900 int r; | |
| 2901 intptr_t recursion = rmonitor->recursions(); | |
| 2902 for (intptr_t i=0; i <= recursion; i++) { | |
| 2903 r = rmonitor->raw_exit(thread); | |
| 2904 assert(r == ObjectMonitor::OM_OK, "raw_exit should have worked"); | |
| 2905 if (r != ObjectMonitor::OM_OK) { // robustness | |
| 2906 return JVMTI_ERROR_INTERNAL; | |
| 2907 } | |
| 2908 } | |
| 2909 } | |
| 2910 if (rmonitor->owner() != NULL) { | |
| 2911 // The caller is trying to destroy a monitor that is locked by | |
| 2912 // someone else. While this is not forbidden by the JVMTI | |
| 2913 // spec, it will cause an assertion failure on systems that don't | |
| 2914 // like destroying synchronization objects that are locked. | |
| 2915 // We indicate a problem with the error return (and leak the | |
| 2916 // monitor's memory). | |
| 2917 return JVMTI_ERROR_NOT_MONITOR_OWNER; | |
| 2918 } | |
| 2919 } | |
| 2920 | |
| 2921 delete rmonitor; | |
| 2922 | |
| 2923 return JVMTI_ERROR_NONE; | |
| 2924 } /* end DestroyRawMonitor */ | |
| 2925 | |
| 2926 | |
| 2927 // rmonitor - pre-checked for validity | |
| 2928 jvmtiError | |
| 2929 JvmtiEnv::RawMonitorEnter(JvmtiRawMonitor * rmonitor) { | |
| 2930 if (Threads::number_of_threads() == 0) { | |
| 2931 // No JavaThreads exist so ObjectMonitor enter cannot be | |
| 2932 // used, add this raw monitor to the pending list. | |
| 2933 // The pending monitors will be actually entered when | |
| 2934 // the VM is setup. | |
| 2935 // See transition_pending_raw_monitors in create_vm() | |
| 2936 // in thread.cpp. | |
| 2937 JvmtiPendingMonitors::enter(rmonitor); | |
| 2938 } else { | |
| 2939 int r; | |
| 2940 Thread* thread = Thread::current(); | |
| 2941 | |
| 2942 if (thread->is_Java_thread()) { | |
| 2943 JavaThread* current_thread = (JavaThread*)thread; | |
| 2944 | |
| 2945 #ifdef PROPER_TRANSITIONS | |
| 2946 // Not really unknown but ThreadInVMfromNative does more than we want | |
| 2947 ThreadInVMfromUnknown __tiv; | |
| 2948 { | |
| 2949 ThreadBlockInVM __tbivm(current_thread); | |
| 2950 r = rmonitor->raw_enter(current_thread); | |
| 2951 } | |
| 2952 #else | |
| 2953 /* Transition to thread_blocked without entering vm state */ | |
| 2954 /* This is really evil. Normally you can't undo _thread_blocked */ | |
| 2955 /* transitions like this because it would cause us to miss a */ | |
| 2956 /* safepoint but since the thread was already in _thread_in_native */ | |
| 2957 /* the thread is not leaving a safepoint safe state and it will */ | |
| 2958 /* block when it tries to return from native. We can't safepoint */ | |
| 2959 /* block in here because we could deadlock the vmthread. Blech. */ | |
| 2960 | |
| 2961 JavaThreadState state = current_thread->thread_state(); | |
| 2962 assert(state == _thread_in_native, "Must be _thread_in_native"); | |
| 2963 // frame should already be walkable since we are in native | |
| 2964 assert(!current_thread->has_last_Java_frame() || | |
| 2965 current_thread->frame_anchor()->walkable(), "Must be walkable"); | |
| 2966 current_thread->set_thread_state(_thread_blocked); | |
| 2967 | |
| 2968 r = rmonitor->raw_enter(current_thread); | |
| 2969 // restore state, still at a safepoint safe state | |
| 2970 current_thread->set_thread_state(state); | |
| 2971 | |
| 2972 #endif /* PROPER_TRANSITIONS */ | |
| 2973 assert(r == ObjectMonitor::OM_OK, "raw_enter should have worked"); | |
| 2974 } else { | |
| 2975 if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { | |
| 2976 r = rmonitor->raw_enter(thread); | |
| 2977 } else { | |
| 2978 ShouldNotReachHere(); | |
| 2979 } | |
| 2980 } | |
| 2981 | |
| 2982 if (r != ObjectMonitor::OM_OK) { // robustness | |
| 2983 return JVMTI_ERROR_INTERNAL; | |
| 2984 } | |
| 2985 } | |
| 2986 return JVMTI_ERROR_NONE; | |
| 2987 } /* end RawMonitorEnter */ | |
| 2988 | |
| 2989 | |
| 2990 // rmonitor - pre-checked for validity | |
| 2991 jvmtiError | |
| 2992 JvmtiEnv::RawMonitorExit(JvmtiRawMonitor * rmonitor) { | |
| 2993 jvmtiError err = JVMTI_ERROR_NONE; | |
| 2994 | |
| 2995 if (Threads::number_of_threads() == 0) { | |
| 2996 // No JavaThreads exist so just remove this monitor from the pending list. | |
| 2997 // Bool value from exit is false if rmonitor is not in the list. | |
| 2998 if (!JvmtiPendingMonitors::exit(rmonitor)) { | |
| 2999 err = JVMTI_ERROR_NOT_MONITOR_OWNER; | |
| 3000 } | |
| 3001 } else { | |
| 3002 int r; | |
| 3003 Thread* thread = Thread::current(); | |
| 3004 | |
| 3005 if (thread->is_Java_thread()) { | |
| 3006 JavaThread* current_thread = (JavaThread*)thread; | |
| 3007 #ifdef PROPER_TRANSITIONS | |
| 3008 // Not really unknown but ThreadInVMfromNative does more than we want | |
| 3009 ThreadInVMfromUnknown __tiv; | |
| 3010 #endif /* PROPER_TRANSITIONS */ | |
| 3011 r = rmonitor->raw_exit(current_thread); | |
| 3012 } else { | |
| 3013 if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { | |
| 3014 r = rmonitor->raw_exit(thread); | |
| 3015 } else { | |
| 3016 ShouldNotReachHere(); | |
| 3017 } | |
| 3018 } | |
| 3019 | |
| 3020 if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) { | |
| 3021 err = JVMTI_ERROR_NOT_MONITOR_OWNER; | |
| 3022 } else { | |
| 3023 assert(r == ObjectMonitor::OM_OK, "raw_exit should have worked"); | |
| 3024 if (r != ObjectMonitor::OM_OK) { // robustness | |
| 3025 err = JVMTI_ERROR_INTERNAL; | |
| 3026 } | |
| 3027 } | |
| 3028 } | |
| 3029 return err; | |
| 3030 } /* end RawMonitorExit */ | |
| 3031 | |
| 3032 | |
| 3033 // rmonitor - pre-checked for validity | |
| 3034 jvmtiError | |
| 3035 JvmtiEnv::RawMonitorWait(JvmtiRawMonitor * rmonitor, jlong millis) { | |
| 3036 int r; | |
| 3037 Thread* thread = Thread::current(); | |
| 3038 | |
| 3039 if (thread->is_Java_thread()) { | |
| 3040 JavaThread* current_thread = (JavaThread*)thread; | |
| 3041 #ifdef PROPER_TRANSITIONS | |
| 3042 // Not really unknown but ThreadInVMfromNative does more than we want | |
| 3043 ThreadInVMfromUnknown __tiv; | |
| 3044 { | |
| 3045 ThreadBlockInVM __tbivm(current_thread); | |
| 3046 r = rmonitor->raw_wait(millis, true, current_thread); | |
| 3047 } | |
| 3048 #else | |
| 3049 /* Transition to thread_blocked without entering vm state */ | |
| 3050 /* This is really evil. Normally you can't undo _thread_blocked */ | |
| 3051 /* transitions like this because it would cause us to miss a */ | |
| 3052 /* safepoint but since the thread was already in _thread_in_native */ | |
| 3053 /* the thread is not leaving a safepoint safe state and it will */ | |
| 3054 /* block when it tries to return from native. We can't safepoint */ | |
| 3055 /* block in here because we could deadlock the vmthread. Blech. */ | |
| 3056 | |
| 3057 JavaThreadState state = current_thread->thread_state(); | |
| 3058 assert(state == _thread_in_native, "Must be _thread_in_native"); | |
| 3059 // frame should already be walkable since we are in native | |
| 3060 assert(!current_thread->has_last_Java_frame() || | |
| 3061 current_thread->frame_anchor()->walkable(), "Must be walkable"); | |
| 3062 current_thread->set_thread_state(_thread_blocked); | |
| 3063 | |
| 3064 r = rmonitor->raw_wait(millis, true, current_thread); | |
| 3065 // restore state, still at a safepoint safe state | |
| 3066 current_thread->set_thread_state(state); | |
| 3067 | |
| 3068 #endif /* PROPER_TRANSITIONS */ | |
| 3069 } else { | |
| 3070 if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { | |
| 3071 r = rmonitor->raw_wait(millis, true, thread); | |
| 3072 } else { | |
| 3073 ShouldNotReachHere(); | |
| 3074 } | |
| 3075 } | |
| 3076 | |
| 3077 switch (r) { | |
| 3078 case ObjectMonitor::OM_INTERRUPTED: | |
| 3079 return JVMTI_ERROR_INTERRUPT; | |
| 3080 case ObjectMonitor::OM_ILLEGAL_MONITOR_STATE: | |
| 3081 return JVMTI_ERROR_NOT_MONITOR_OWNER; | |
| 3082 } | |
| 3083 assert(r == ObjectMonitor::OM_OK, "raw_wait should have worked"); | |
| 3084 if (r != ObjectMonitor::OM_OK) { // robustness | |
| 3085 return JVMTI_ERROR_INTERNAL; | |
| 3086 } | |
| 3087 | |
| 3088 return JVMTI_ERROR_NONE; | |
| 3089 } /* end RawMonitorWait */ | |
| 3090 | |
| 3091 | |
| 3092 // rmonitor - pre-checked for validity | |
| 3093 jvmtiError | |
| 3094 JvmtiEnv::RawMonitorNotify(JvmtiRawMonitor * rmonitor) { | |
| 3095 int r; | |
| 3096 Thread* thread = Thread::current(); | |
| 3097 | |
| 3098 if (thread->is_Java_thread()) { | |
| 3099 JavaThread* current_thread = (JavaThread*)thread; | |
| 3100 // Not really unknown but ThreadInVMfromNative does more than we want | |
| 3101 ThreadInVMfromUnknown __tiv; | |
| 3102 r = rmonitor->raw_notify(current_thread); | |
| 3103 } else { | |
| 3104 if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { | |
| 3105 r = rmonitor->raw_notify(thread); | |
| 3106 } else { | |
| 3107 ShouldNotReachHere(); | |
| 3108 } | |
| 3109 } | |
| 3110 | |
| 3111 if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) { | |
| 3112 return JVMTI_ERROR_NOT_MONITOR_OWNER; | |
| 3113 } | |
| 3114 assert(r == ObjectMonitor::OM_OK, "raw_notify should have worked"); | |
| 3115 if (r != ObjectMonitor::OM_OK) { // robustness | |
| 3116 return JVMTI_ERROR_INTERNAL; | |
| 3117 } | |
| 3118 | |
| 3119 return JVMTI_ERROR_NONE; | |
| 3120 } /* end RawMonitorNotify */ | |
| 3121 | |
| 3122 | |
| 3123 // rmonitor - pre-checked for validity | |
| 3124 jvmtiError | |
| 3125 JvmtiEnv::RawMonitorNotifyAll(JvmtiRawMonitor * rmonitor) { | |
| 3126 int r; | |
| 3127 Thread* thread = Thread::current(); | |
| 3128 | |
| 3129 if (thread->is_Java_thread()) { | |
| 3130 JavaThread* current_thread = (JavaThread*)thread; | |
| 3131 ThreadInVMfromUnknown __tiv; | |
| 3132 r = rmonitor->raw_notifyAll(current_thread); | |
| 3133 } else { | |
| 3134 if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { | |
| 3135 r = rmonitor->raw_notifyAll(thread); | |
| 3136 } else { | |
| 3137 ShouldNotReachHere(); | |
| 3138 } | |
| 3139 } | |
| 3140 | |
| 3141 if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) { | |
| 3142 return JVMTI_ERROR_NOT_MONITOR_OWNER; | |
| 3143 } | |
| 3144 assert(r == ObjectMonitor::OM_OK, "raw_notifyAll should have worked"); | |
| 3145 if (r != ObjectMonitor::OM_OK) { // robustness | |
| 3146 return JVMTI_ERROR_INTERNAL; | |
| 3147 } | |
| 3148 | |
| 3149 return JVMTI_ERROR_NONE; | |
| 3150 } /* end RawMonitorNotifyAll */ | |
| 3151 | |
| 3152 | |
| 3153 // | |
| 3154 // JNI Function Interception functions | |
| 3155 // | |
| 3156 | |
| 3157 | |
| 3158 // function_table - pre-checked for NULL | |
| 3159 jvmtiError | |
| 3160 JvmtiEnv::SetJNIFunctionTable(const jniNativeInterface* function_table) { | |
| 3161 // Copy jni function table at safepoint. | |
| 3162 VM_JNIFunctionTableCopier copier(function_table); | |
| 3163 VMThread::execute(&copier); | |
| 3164 | |
| 3165 return JVMTI_ERROR_NONE; | |
| 3166 } /* end SetJNIFunctionTable */ | |
| 3167 | |
| 3168 | |
| 3169 // function_table - pre-checked for NULL | |
| 3170 jvmtiError | |
| 3171 JvmtiEnv::GetJNIFunctionTable(jniNativeInterface** function_table) { | |
| 3172 *function_table=(jniNativeInterface*)jvmtiMalloc(sizeof(jniNativeInterface)); | |
| 3173 if (*function_table == NULL) | |
| 3174 return JVMTI_ERROR_OUT_OF_MEMORY; | |
| 3175 memcpy(*function_table,(JavaThread::current())->get_jni_functions(),sizeof(jniNativeInterface)); | |
| 3176 return JVMTI_ERROR_NONE; | |
| 3177 } /* end GetJNIFunctionTable */ | |
| 3178 | |
| 3179 | |
| 3180 // | |
| 3181 // Event Management functions | |
| 3182 // | |
| 3183 | |
| 3184 jvmtiError | |
| 3185 JvmtiEnv::GenerateEvents(jvmtiEvent event_type) { | |
| 3186 // can only generate two event types | |
| 3187 if (event_type != JVMTI_EVENT_COMPILED_METHOD_LOAD && | |
| 3188 event_type != JVMTI_EVENT_DYNAMIC_CODE_GENERATED) { | |
| 3189 return JVMTI_ERROR_ILLEGAL_ARGUMENT; | |
| 3190 } | |
| 3191 | |
| 3192 // for compiled_method_load events we must check that the environment | |
| 3193 // has the can_generate_compiled_method_load_events capability. | |
| 3194 if (event_type == JVMTI_EVENT_COMPILED_METHOD_LOAD) { | |
| 3195 if (get_capabilities()->can_generate_compiled_method_load_events == 0) { | |
| 3196 return JVMTI_ERROR_MUST_POSSESS_CAPABILITY; | |
| 3197 } | |
| 3198 return JvmtiCodeBlobEvents::generate_compiled_method_load_events(this); | |
| 3199 } else { | |
| 3200 return JvmtiCodeBlobEvents::generate_dynamic_code_events(this); | |
| 3201 } | |
| 3202 | |
| 3203 } /* end GenerateEvents */ | |
| 3204 | |
| 3205 | |
| 3206 // | |
| 3207 // Extension Mechanism functions | |
| 3208 // | |
| 3209 | |
| 3210 // extension_count_ptr - pre-checked for NULL | |
| 3211 // extensions - pre-checked for NULL | |
| 3212 jvmtiError | |
| 3213 JvmtiEnv::GetExtensionFunctions(jint* extension_count_ptr, jvmtiExtensionFunctionInfo** extensions) { | |
| 3214 return JvmtiExtensions::get_functions(this, extension_count_ptr, extensions); | |
| 3215 } /* end GetExtensionFunctions */ | |
| 3216 | |
| 3217 | |
| 3218 // extension_count_ptr - pre-checked for NULL | |
| 3219 // extensions - pre-checked for NULL | |
| 3220 jvmtiError | |
| 3221 JvmtiEnv::GetExtensionEvents(jint* extension_count_ptr, jvmtiExtensionEventInfo** extensions) { | |
| 3222 return JvmtiExtensions::get_events(this, extension_count_ptr, extensions); | |
| 3223 } /* end GetExtensionEvents */ | |
| 3224 | |
| 3225 | |
| 3226 // callback - NULL is a valid value, must be checked | |
| 3227 jvmtiError | |
| 3228 JvmtiEnv::SetExtensionEventCallback(jint extension_event_index, jvmtiExtensionEvent callback) { | |
| 3229 return JvmtiExtensions::set_event_callback(this, extension_event_index, callback); | |
| 3230 } /* end SetExtensionEventCallback */ | |
| 3231 | |
| 3232 // | |
| 3233 // Timers functions | |
| 3234 // | |
| 3235 | |
| 3236 // info_ptr - pre-checked for NULL | |
| 3237 jvmtiError | |
| 3238 JvmtiEnv::GetCurrentThreadCpuTimerInfo(jvmtiTimerInfo* info_ptr) { | |
| 3239 os::current_thread_cpu_time_info(info_ptr); | |
| 3240 return JVMTI_ERROR_NONE; | |
| 3241 } /* end GetCurrentThreadCpuTimerInfo */ | |
| 3242 | |
| 3243 | |
| 3244 // nanos_ptr - pre-checked for NULL | |
| 3245 jvmtiError | |
| 3246 JvmtiEnv::GetCurrentThreadCpuTime(jlong* nanos_ptr) { | |
| 3247 *nanos_ptr = os::current_thread_cpu_time(); | |
| 3248 return JVMTI_ERROR_NONE; | |
| 3249 } /* end GetCurrentThreadCpuTime */ | |
| 3250 | |
| 3251 | |
| 3252 // info_ptr - pre-checked for NULL | |
| 3253 jvmtiError | |
| 3254 JvmtiEnv::GetThreadCpuTimerInfo(jvmtiTimerInfo* info_ptr) { | |
| 3255 os::thread_cpu_time_info(info_ptr); | |
| 3256 return JVMTI_ERROR_NONE; | |
| 3257 } /* end GetThreadCpuTimerInfo */ | |
| 3258 | |
| 3259 | |
| 3260 // Threads_lock NOT held, java_thread not protected by lock | |
| 3261 // java_thread - pre-checked | |
| 3262 // nanos_ptr - pre-checked for NULL | |
| 3263 jvmtiError | |
| 3264 JvmtiEnv::GetThreadCpuTime(JavaThread* java_thread, jlong* nanos_ptr) { | |
| 3265 *nanos_ptr = os::thread_cpu_time(java_thread); | |
| 3266 return JVMTI_ERROR_NONE; | |
| 3267 } /* end GetThreadCpuTime */ | |
| 3268 | |
| 3269 | |
| 3270 // info_ptr - pre-checked for NULL | |
| 3271 jvmtiError | |
| 3272 JvmtiEnv::GetTimerInfo(jvmtiTimerInfo* info_ptr) { | |
| 3273 os::javaTimeNanos_info(info_ptr); | |
| 3274 return JVMTI_ERROR_NONE; | |
| 3275 } /* end GetTimerInfo */ | |
| 3276 | |
| 3277 | |
| 3278 // nanos_ptr - pre-checked for NULL | |
| 3279 jvmtiError | |
| 3280 JvmtiEnv::GetTime(jlong* nanos_ptr) { | |
| 3281 *nanos_ptr = os::javaTimeNanos(); | |
| 3282 return JVMTI_ERROR_NONE; | |
| 3283 } /* end GetTime */ | |
| 3284 | |
| 3285 | |
| 3286 // processor_count_ptr - pre-checked for NULL | |
| 3287 jvmtiError | |
| 3288 JvmtiEnv::GetAvailableProcessors(jint* processor_count_ptr) { | |
| 3289 *processor_count_ptr = os::active_processor_count(); | |
| 3290 return JVMTI_ERROR_NONE; | |
| 3291 } /* end GetAvailableProcessors */ | |
| 3292 | |
| 3293 // | |
| 3294 // System Properties functions | |
| 3295 // | |
| 3296 | |
| 3297 // count_ptr - pre-checked for NULL | |
| 3298 // property_ptr - pre-checked for NULL | |
| 3299 jvmtiError | |
| 3300 JvmtiEnv::GetSystemProperties(jint* count_ptr, char*** property_ptr) { | |
| 3301 jvmtiError err = JVMTI_ERROR_NONE; | |
| 3302 | |
| 3303 *count_ptr = Arguments::PropertyList_count(Arguments::system_properties()); | |
| 3304 | |
| 3305 err = allocate(*count_ptr * sizeof(char *), (unsigned char **)property_ptr); | |
| 3306 if (err != JVMTI_ERROR_NONE) { | |
| 3307 return err; | |
| 3308 } | |
| 3309 int i = 0 ; | |
| 3310 for (SystemProperty* p = Arguments::system_properties(); p != NULL && i < *count_ptr; p = p->next(), i++) { | |
| 3311 const char *key = p->key(); | |
| 3312 char **tmp_value = *property_ptr+i; | |
| 3313 err = allocate((strlen(key)+1) * sizeof(char), (unsigned char**)tmp_value); | |
| 3314 if (err == JVMTI_ERROR_NONE) { | |
| 3315 strcpy(*tmp_value, key); | |
| 3316 } else { | |
| 3317 // clean up previously allocated memory. | |
| 3318 for (int j=0; j<i; j++) { | |
| 3319 Deallocate((unsigned char*)*property_ptr+j); | |
| 3320 } | |
| 3321 Deallocate((unsigned char*)property_ptr); | |
| 3322 break; | |
| 3323 } | |
| 3324 } | |
| 3325 return err; | |
| 3326 } /* end GetSystemProperties */ | |
| 3327 | |
| 3328 | |
| 3329 // property - pre-checked for NULL | |
| 3330 // value_ptr - pre-checked for NULL | |
| 3331 jvmtiError | |
| 3332 JvmtiEnv::GetSystemProperty(const char* property, char** value_ptr) { | |
| 3333 jvmtiError err = JVMTI_ERROR_NONE; | |
| 3334 const char *value; | |
| 3335 | |
| 3336 value = Arguments::PropertyList_get_value(Arguments::system_properties(), property); | |
| 3337 if (value == NULL) { | |
| 3338 err = JVMTI_ERROR_NOT_AVAILABLE; | |
| 3339 } else { | |
| 3340 err = allocate((strlen(value)+1) * sizeof(char), (unsigned char **)value_ptr); | |
| 3341 if (err == JVMTI_ERROR_NONE) { | |
| 3342 strcpy(*value_ptr, value); | |
| 3343 } | |
| 3344 } | |
| 3345 return err; | |
| 3346 } /* end GetSystemProperty */ | |
| 3347 | |
| 3348 | |
| 3349 // property - pre-checked for NULL | |
| 3350 // value - NULL is a valid value, must be checked | |
| 3351 jvmtiError | |
| 3352 JvmtiEnv::SetSystemProperty(const char* property, const char* value) { | |
| 3353 jvmtiError err =JVMTI_ERROR_NOT_AVAILABLE; | |
| 3354 | |
| 3355 for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { | |
| 3356 if (strcmp(property, p->key()) == 0) { | |
| 3357 if (p->set_value((char *)value)) { | |
| 3358 err = JVMTI_ERROR_NONE; | |
| 3359 } | |
| 3360 } | |
| 3361 } | |
| 3362 return err; | |
| 3363 } /* end SetSystemProperty */ | |
| 3364 | |
| 3365 #endif // !JVMTI_KERNEL |