1 /* 2 * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_PRIMS_JVMTIENVBASE_HPP 26 #define SHARE_PRIMS_JVMTIENVBASE_HPP 27 28 #include "classfile/classLoader.hpp" 29 #include "prims/jvmtiEnvThreadState.hpp" 30 #include "prims/jvmtiEventController.hpp" 31 #include "prims/jvmtiThreadState.hpp" 32 #include "oops/oopHandle.hpp" 33 #include "runtime/atomic.hpp" 34 #include "runtime/fieldDescriptor.hpp" 35 #include "runtime/frame.hpp" 36 #include "runtime/thread.hpp" 37 #include "runtime/vmOperations.hpp" 38 #include "utilities/growableArray.hpp" 39 #include "utilities/macros.hpp" 40 41 // 42 // Forward Declarations 43 // 44 45 class JvmtiEnv; 46 class JvmtiThreadState; 47 class JvmtiRawMonitor; // for jvmtiEnv.hpp 48 class JvmtiEventControllerPrivate; 49 class JvmtiTagMap; 50 51 52 53 // One JvmtiEnv object is created per jvmti attachment; 54 // done via JNI GetEnv() call. Multiple attachments are 55 // allowed in jvmti. 56 57 class JvmtiEnvBase : public CHeapObj<mtInternal> { 58 59 private: 60 61 #if INCLUDE_JVMTI 62 static JvmtiEnvBase* _head_environment; // head of environment list 63 #endif // INCLUDE_JVMTI 64 65 static bool _globally_initialized; 66 static jvmtiPhase _phase; 67 static volatile int _dying_thread_env_iteration_count; 68 69 public: 70 71 enum { 72 JDK15_JVMTI_VERSION = JVMTI_VERSION_1_0 + 33, /* version: 1.0.33 */ 73 JDK16_JVMTI_VERSION = JVMTI_VERSION_1_1 + 102, /* version: 1.1.102 */ 74 JDK17_JVMTI_VERSION = JVMTI_VERSION_1_2 + 2 /* version: 1.2.2 */ 75 }; 76 77 static jvmtiPhase get_phase() { return _phase; } 78 static jvmtiPhase get_phase(jvmtiEnv* env) { return ((JvmtiEnvBase*)JvmtiEnv_from_jvmti_env(env))->phase(); } 79 static void set_phase(jvmtiPhase phase) { _phase = phase; } 80 static bool is_vm_live() { return _phase == JVMTI_PHASE_LIVE; } 81 82 static void entering_dying_thread_env_iteration() { ++_dying_thread_env_iteration_count; } 83 static void leaving_dying_thread_env_iteration() { --_dying_thread_env_iteration_count; } 84 static bool is_inside_dying_thread_env_iteration(){ return _dying_thread_env_iteration_count > 0; } 85 86 private: 87 88 enum { 89 JVMTI_MAGIC = 0x71EE, 90 DISPOSED_MAGIC = 0xDEFC, 91 BAD_MAGIC = 0xDEAD 92 }; 93 94 jvmtiEnv _jvmti_external; 95 jint _magic; 96 jint _version; // version value passed to JNI GetEnv() 97 JvmtiEnvBase* _next; 98 bool _is_retransformable; 99 const void *_env_local_storage; // per env agent allocated data. 100 jvmtiEventCallbacks _event_callbacks; 101 jvmtiExtEventCallbacks _ext_event_callbacks; 102 JvmtiTagMap* volatile _tag_map; 103 JvmtiEnvEventEnable _env_event_enable; 104 jvmtiCapabilities _current_capabilities; 105 jvmtiCapabilities _prohibited_capabilities; 106 volatile bool _class_file_load_hook_ever_enabled; 107 static volatile bool _needs_clean_up; 108 char** _native_method_prefixes; 109 int _native_method_prefix_count; 110 111 protected: 112 JvmtiEnvBase(jint version); 113 ~JvmtiEnvBase(); 114 void dispose(); 115 void env_dispose(); 116 117 void set_env_local_storage(const void* data) { _env_local_storage = data; } 118 const void* get_env_local_storage() { return _env_local_storage; } 119 120 void record_class_file_load_hook_enabled(); 121 void record_first_time_class_file_load_hook_enabled(); 122 123 char** get_native_method_prefixes() { return _native_method_prefixes; } 124 int get_native_method_prefix_count() { return _native_method_prefix_count; } 125 jvmtiError set_native_method_prefixes(jint prefix_count, char** prefixes); 126 127 private: 128 friend class JvmtiEventControllerPrivate; 129 void initialize(); 130 void set_event_callbacks(const jvmtiEventCallbacks* callbacks, jint size_of_callbacks); 131 static void globally_initialize(); 132 static void periodic_clean_up(); 133 134 friend class JvmtiEnvIterator; 135 JvmtiEnv* next_environment() { return (JvmtiEnv*)_next; } 136 void set_next_environment(JvmtiEnvBase* env) { _next = env; } 137 static JvmtiEnv* head_environment() { 138 JVMTI_ONLY(return (JvmtiEnv*)_head_environment); 139 NOT_JVMTI(return NULL); 140 } 141 142 public: 143 144 jvmtiPhase phase(); 145 bool is_valid(); 146 147 bool use_version_1_0_semantics(); // agent asked for version 1.0 148 bool use_version_1_1_semantics(); // agent asked for version 1.1 149 bool use_version_1_2_semantics(); // agent asked for version 1.2 150 151 bool is_retransformable() { return _is_retransformable; } 152 153 static ByteSize jvmti_external_offset() { 154 return byte_offset_of(JvmtiEnvBase, _jvmti_external); 155 }; 156 157 static JvmtiEnv* JvmtiEnv_from_jvmti_env(jvmtiEnv *env) { 158 return (JvmtiEnv*)((intptr_t)env - in_bytes(jvmti_external_offset())); 159 }; 160 161 jvmtiCapabilities *get_capabilities() { return &_current_capabilities; } 162 163 jvmtiCapabilities *get_prohibited_capabilities() { return &_prohibited_capabilities; } 164 165 bool early_class_hook_env() { 166 return get_capabilities()->can_generate_early_class_hook_events != 0 167 && get_capabilities()->can_generate_all_class_hook_events != 0; 168 } 169 170 bool early_vmstart_env() { 171 return get_capabilities()->can_generate_early_vmstart != 0; 172 } 173 174 static char** get_all_native_method_prefixes(int* count_ptr); 175 176 // This test will answer true when all environments have been disposed and some have 177 // not yet been deallocated. As a result, this test should only be used as an 178 // optimization for the no environment case. 179 static bool environments_might_exist() { 180 return head_environment() != NULL; 181 } 182 183 static void check_for_periodic_clean_up(); 184 185 JvmtiEnvEventEnable *env_event_enable() { 186 return &_env_event_enable; 187 } 188 189 jvmtiError allocate(jlong size, unsigned char** mem_ptr) { 190 if (size < 0) { 191 return JVMTI_ERROR_ILLEGAL_ARGUMENT; 192 } 193 if (size == 0) { 194 *mem_ptr = NULL; 195 } else { 196 *mem_ptr = (unsigned char *)os::malloc((size_t)size, mtInternal); 197 if (*mem_ptr == NULL) { 198 return JVMTI_ERROR_OUT_OF_MEMORY; 199 } 200 } 201 return JVMTI_ERROR_NONE; 202 } 203 204 jvmtiError deallocate(unsigned char* mem) { 205 if (mem != NULL) { 206 os::free(mem); 207 } 208 return JVMTI_ERROR_NONE; 209 } 210 211 212 // Memory functions 213 unsigned char* jvmtiMalloc(jlong size); // don't use this - call allocate 214 215 // method to create a local handle 216 jobject jni_reference(Handle hndl); 217 218 // method to create a local handle. 219 // This function allows caller to specify which 220 // threads local handle table to use. 221 jobject jni_reference(JavaThread *thread, Handle hndl); 222 223 // method to destroy a local handle 224 void destroy_jni_reference(jobject jobj); 225 226 // method to destroy a local handle. 227 // This function allows caller to specify which 228 // threads local handle table to use. 229 void destroy_jni_reference(JavaThread *thread, jobject jobj); 230 231 jvmtiEnv* jvmti_external() { return &_jvmti_external; }; 232 233 // Event Dispatch 234 235 bool has_callback(jvmtiEvent event_type) { 236 assert(event_type >= JVMTI_MIN_EVENT_TYPE_VAL && 237 event_type <= JVMTI_MAX_EVENT_TYPE_VAL, "checking"); 238 return ((void**)&_event_callbacks)[event_type-JVMTI_MIN_EVENT_TYPE_VAL] != NULL; 239 } 240 241 jvmtiEventCallbacks* callbacks() { 242 return &_event_callbacks; 243 } 244 245 jvmtiExtEventCallbacks* ext_callbacks() { 246 return &_ext_event_callbacks; 247 } 248 249 void set_tag_map(JvmtiTagMap* tag_map) { 250 _tag_map = tag_map; 251 } 252 253 JvmtiTagMap* tag_map() { 254 return _tag_map; 255 } 256 257 JvmtiTagMap* tag_map_acquire() { 258 return Atomic::load_acquire(&_tag_map); 259 } 260 261 void release_set_tag_map(JvmtiTagMap* tag_map) { 262 Atomic::release_store(&_tag_map, tag_map); 263 } 264 265 // return true if event is enabled globally or for any thread 266 // True only if there is a callback for it. 267 bool is_enabled(jvmtiEvent event_type) { 268 return _env_event_enable.is_enabled(event_type); 269 } 270 271 // Random Utilities 272 273 protected: 274 // helper methods for creating arrays of global JNI Handles from local Handles 275 // allocated into environment specific storage 276 jobject * new_jobjectArray(int length, Handle *handles); 277 jthread * new_jthreadArray(int length, Handle *handles); 278 jthreadGroup * new_jthreadGroupArray(int length, Handle *handles); 279 280 // convert to a jni jclass from a non-null Klass* 281 jclass get_jni_class_non_null(Klass* k); 282 283 jint count_locked_objects(JavaThread *java_thread, Handle hobj); 284 jvmtiError get_locked_objects_in_frame(JavaThread *calling_thread, 285 JavaThread* java_thread, 286 javaVFrame *jvf, 287 GrowableArray<jvmtiMonitorStackDepthInfo*>* owned_monitors_list, 288 jint depth); 289 vframe* vframeFor(JavaThread* java_thread, jint depth); 290 291 public: 292 // get a field descriptor for the specified class and field 293 static bool get_field_descriptor(Klass* k, jfieldID field, fieldDescriptor* fd); 294 295 // JVMTI API helper functions which are called when target thread is suspended 296 // or at safepoint / thread local handshake. 297 jvmtiError get_frame_count(JvmtiThreadState *state, jint *count_ptr); 298 jvmtiError get_frame_location(JavaThread* java_thread, jint depth, 299 jmethodID* method_ptr, jlocation* location_ptr); 300 jvmtiError get_object_monitor_usage(JavaThread *calling_thread, 301 jobject object, jvmtiMonitorUsage* info_ptr); 302 jvmtiError get_stack_trace(JavaThread *java_thread, 303 jint stack_depth, jint max_count, 304 jvmtiFrameInfo* frame_buffer, jint* count_ptr); 305 jvmtiError get_current_contended_monitor(JavaThread *calling_thread, JavaThread *java_thread, 306 jobject *monitor_ptr); 307 jvmtiError get_owned_monitors(JavaThread *calling_thread, JavaThread* java_thread, 308 GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors_list); 309 jvmtiError check_top_frame(JavaThread* current_thread, JavaThread* java_thread, 310 jvalue value, TosState tos, Handle* ret_ob_h); 311 jvmtiError force_early_return(JavaThread* java_thread, jvalue value, TosState tos); 312 }; 313 314 // This class is the only safe means of iterating through environments. 315 // Note that this iteratation includes invalid environments pending 316 // deallocation -- in fact, some uses depend on this behavior. 317 318 class JvmtiEnvIterator : public StackObj { 319 private: 320 bool _entry_was_marked; 321 public: 322 JvmtiEnvIterator() { 323 if (Threads::number_of_threads() == 0) { 324 _entry_was_marked = false; // we are single-threaded, no need 325 } else { 326 Thread::current()->entering_jvmti_env_iteration(); 327 _entry_was_marked = true; 328 } 329 } 330 ~JvmtiEnvIterator() { 331 if (_entry_was_marked) { 332 Thread::current()->leaving_jvmti_env_iteration(); 333 } 334 } 335 JvmtiEnv* first() { return JvmtiEnvBase::head_environment(); } 336 JvmtiEnv* next(JvmtiEnvBase* env) { return env->next_environment(); } 337 }; 338 339 // VM operation to update for pop top frame. 340 class VM_UpdateForPopTopFrame : public VM_Operation { 341 private: 342 JvmtiThreadState* _state; 343 jvmtiError _result; 344 345 public: 346 VM_UpdateForPopTopFrame(JvmtiThreadState* state) { 347 _state = state; 348 _result = JVMTI_ERROR_NONE; 349 } 350 VMOp_Type type() const { return VMOp_UpdateForPopTopFrame; } 351 jvmtiError result() { return _result; } 352 void doit(); 353 }; 354 355 // VM operation to set frame pop. 356 class VM_SetFramePop : public VM_Operation { 357 private: 358 JvmtiEnv *_env; 359 JvmtiThreadState* _state; 360 jint _depth; 361 jvmtiError _result; 362 363 public: 364 VM_SetFramePop(JvmtiEnv *env, JvmtiThreadState* state, jint depth) { 365 _env = env; 366 _state = state; 367 _depth = depth; 368 _result = JVMTI_ERROR_NONE; 369 } 370 VMOp_Type type() const { return VMOp_SetFramePop; } 371 jvmtiError result() { return _result; } 372 void doit(); 373 }; 374 375 376 // HandshakeClosure to get monitor information with stack depth. 377 class GetOwnedMonitorInfoClosure : public HandshakeClosure { 378 private: 379 JavaThread* _calling_thread; 380 JvmtiEnv *_env; 381 jvmtiError _result; 382 GrowableArray<jvmtiMonitorStackDepthInfo*> *_owned_monitors_list; 383 384 public: 385 GetOwnedMonitorInfoClosure(JavaThread* calling_thread, JvmtiEnv* env, 386 GrowableArray<jvmtiMonitorStackDepthInfo*>* owned_monitor_list) 387 : HandshakeClosure("GetOwnedMonitorInfo"), 388 _calling_thread(calling_thread), 389 _env(env), 390 _result(JVMTI_ERROR_THREAD_NOT_ALIVE), 391 _owned_monitors_list(owned_monitor_list) {} 392 jvmtiError result() { return _result; } 393 void do_thread(Thread *target); 394 }; 395 396 397 // VM operation to get object monitor usage. 398 class VM_GetObjectMonitorUsage : public VM_Operation { 399 private: 400 JvmtiEnv *_env; 401 jobject _object; 402 JavaThread* _calling_thread; 403 jvmtiMonitorUsage* _info_ptr; 404 jvmtiError _result; 405 406 public: 407 VM_GetObjectMonitorUsage(JvmtiEnv *env, JavaThread* calling_thread, jobject object, jvmtiMonitorUsage* info_ptr) { 408 _env = env; 409 _object = object; 410 _calling_thread = calling_thread; 411 _info_ptr = info_ptr; 412 } 413 VMOp_Type type() const { return VMOp_GetObjectMonitorUsage; } 414 jvmtiError result() { return _result; } 415 void doit() { 416 _result = ((JvmtiEnvBase*) _env)->get_object_monitor_usage(_calling_thread, _object, _info_ptr); 417 } 418 419 }; 420 421 // HandshakeClosure to get current contended monitor. 422 class GetCurrentContendedMonitorClosure : public HandshakeClosure { 423 private: 424 JavaThread *_calling_thread; 425 JvmtiEnv *_env; 426 jobject *_owned_monitor_ptr; 427 jvmtiError _result; 428 429 public: 430 GetCurrentContendedMonitorClosure(JavaThread* calling_thread, JvmtiEnv *env, jobject *mon_ptr) 431 : HandshakeClosure("GetCurrentContendedMonitor"), 432 _calling_thread(calling_thread), 433 _env(env), 434 _owned_monitor_ptr(mon_ptr), 435 _result(JVMTI_ERROR_THREAD_NOT_ALIVE) {} 436 jvmtiError result() { return _result; } 437 void do_thread(Thread *target); 438 }; 439 440 // VM operation to get stack trace at safepoint. 441 class VM_GetStackTrace : public VM_Operation { 442 private: 443 JvmtiEnv *_env; 444 JavaThread *_java_thread; 445 jint _start_depth; 446 jint _max_count; 447 jvmtiFrameInfo *_frame_buffer; 448 jint *_count_ptr; 449 jvmtiError _result; 450 451 public: 452 VM_GetStackTrace(JvmtiEnv *env, JavaThread *java_thread, 453 jint start_depth, jint max_count, 454 jvmtiFrameInfo* frame_buffer, jint* count_ptr) { 455 _env = env; 456 _java_thread = java_thread; 457 _start_depth = start_depth; 458 _max_count = max_count; 459 _frame_buffer = frame_buffer; 460 _count_ptr = count_ptr; 461 } 462 jvmtiError result() { return _result; } 463 VMOp_Type type() const { return VMOp_GetStackTrace; } 464 void doit(); 465 }; 466 467 // forward declaration 468 struct StackInfoNode; 469 470 // VM operation to get stack trace at safepoint. 471 class VM_GetMultipleStackTraces : public VM_Operation { 472 private: 473 JvmtiEnv *_env; 474 jint _max_frame_count; 475 jvmtiStackInfo *_stack_info; 476 jvmtiError _result; 477 int _frame_count_total; 478 struct StackInfoNode *_head; 479 480 JvmtiEnvBase *env() { return (JvmtiEnvBase *)_env; } 481 jint max_frame_count() { return _max_frame_count; } 482 struct StackInfoNode *head() { return _head; } 483 void set_head(StackInfoNode *head) { _head = head; } 484 485 protected: 486 void set_result(jvmtiError result) { _result = result; } 487 void fill_frames(jthread jt, JavaThread *thr, oop thread_oop); 488 void allocate_and_fill_stacks(jint thread_count); 489 490 public: 491 VM_GetMultipleStackTraces(JvmtiEnv *env, jint max_frame_count) { 492 _env = env; 493 _max_frame_count = max_frame_count; 494 _frame_count_total = 0; 495 _head = NULL; 496 _result = JVMTI_ERROR_NONE; 497 } 498 VMOp_Type type() const { return VMOp_GetMultipleStackTraces; } 499 jvmtiStackInfo *stack_info() { return _stack_info; } 500 jvmtiError result() { return _result; } 501 }; 502 503 504 // VM operation to get stack trace at safepoint. 505 class VM_GetAllStackTraces : public VM_GetMultipleStackTraces { 506 private: 507 JavaThread *_calling_thread; 508 jint _final_thread_count; 509 510 public: 511 VM_GetAllStackTraces(JvmtiEnv *env, JavaThread *calling_thread, 512 jint max_frame_count) 513 : VM_GetMultipleStackTraces(env, max_frame_count) { 514 _calling_thread = calling_thread; 515 } 516 VMOp_Type type() const { return VMOp_GetAllStackTraces; } 517 void doit(); 518 jint final_thread_count() { return _final_thread_count; } 519 }; 520 521 // VM operation to get stack trace at safepoint. 522 class VM_GetThreadListStackTraces : public VM_GetMultipleStackTraces { 523 private: 524 jint _thread_count; 525 const jthread* _thread_list; 526 527 public: 528 VM_GetThreadListStackTraces(JvmtiEnv *env, jint thread_count, const jthread* thread_list, jint max_frame_count) 529 : VM_GetMultipleStackTraces(env, max_frame_count) { 530 _thread_count = thread_count; 531 _thread_list = thread_list; 532 } 533 VMOp_Type type() const { return VMOp_GetThreadListStackTraces; } 534 void doit(); 535 }; 536 537 538 // VM operation to count stack frames at safepoint. 539 class VM_GetFrameCount : public VM_Operation { 540 private: 541 JvmtiEnv *_env; 542 JvmtiThreadState *_state; 543 jint *_count_ptr; 544 jvmtiError _result; 545 546 public: 547 VM_GetFrameCount(JvmtiEnv *env, JvmtiThreadState *state, jint *count_ptr) { 548 _env = env; 549 _state = state; 550 _count_ptr = count_ptr; 551 } 552 VMOp_Type type() const { return VMOp_GetFrameCount; } 553 jvmtiError result() { return _result; } 554 void doit(); 555 }; 556 557 // VM operation to frame location at safepoint. 558 class VM_GetFrameLocation : public VM_Operation { 559 private: 560 JvmtiEnv *_env; 561 JavaThread* _java_thread; 562 jint _depth; 563 jmethodID* _method_ptr; 564 jlocation* _location_ptr; 565 jvmtiError _result; 566 567 public: 568 VM_GetFrameLocation(JvmtiEnv *env, JavaThread* java_thread, jint depth, 569 jmethodID* method_ptr, jlocation* location_ptr) { 570 _env = env; 571 _java_thread = java_thread; 572 _depth = depth; 573 _method_ptr = method_ptr; 574 _location_ptr = location_ptr; 575 } 576 VMOp_Type type() const { return VMOp_GetFrameLocation; } 577 jvmtiError result() { return _result; } 578 void doit(); 579 }; 580 581 582 // ResourceTracker 583 // 584 // ResourceTracker works a little like a ResourceMark. All allocates 585 // using the resource tracker are recorded. If an allocate using the 586 // resource tracker fails the destructor will free any resources 587 // that were allocated using the tracker. 588 // The motive for this class is to avoid messy error recovery code 589 // in situations where multiple allocations are done in sequence. If 590 // the second or subsequent allocation fails it avoids any code to 591 // release memory allocated in the previous calls. 592 // 593 // Usage :- 594 // ResourceTracker rt(env); 595 // : 596 // err = rt.allocate(1024, &ptr); 597 598 class ResourceTracker : public StackObj { 599 private: 600 JvmtiEnv* _env; 601 GrowableArray<unsigned char*> *_allocations; 602 bool _failed; 603 public: 604 ResourceTracker(JvmtiEnv* env); 605 ~ResourceTracker(); 606 jvmtiError allocate(jlong size, unsigned char** mem_ptr); 607 unsigned char* allocate(jlong size); 608 char* strdup(const char* str); 609 }; 610 611 612 // Jvmti monitor closure to collect off stack monitors. 613 class JvmtiMonitorClosure: public MonitorClosure { 614 private: 615 JavaThread *_java_thread; 616 JavaThread *_calling_thread; 617 GrowableArray<jvmtiMonitorStackDepthInfo*> *_owned_monitors_list; 618 jvmtiError _error; 619 JvmtiEnvBase *_env; 620 621 public: 622 JvmtiMonitorClosure(JavaThread* thread, JavaThread *calling_thread, 623 GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors, 624 JvmtiEnvBase *env) { 625 _java_thread = thread; 626 _calling_thread = calling_thread; 627 _owned_monitors_list = owned_monitors; 628 _error = JVMTI_ERROR_NONE; 629 _env = env; 630 } 631 void do_monitor(ObjectMonitor* mon); 632 jvmtiError error() { return _error;} 633 }; 634 635 636 // Jvmti module closure to collect all modules loaded to the system. 637 class JvmtiModuleClosure : public StackObj { 638 private: 639 static GrowableArray<OopHandle> *_tbl; // Protected with Module_lock 640 641 static void do_module(ModuleEntry* entry); 642 public: 643 jvmtiError get_all_modules(JvmtiEnv* env, jint* module_count_ptr, jobject** modules_ptr); 644 }; 645 646 #endif // SHARE_PRIMS_JVMTIENVBASE_HPP