235 } else {
236 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type);
237 }
238 #undef RETURN_BOXED_LONG
239 #undef RETURN_BOXED_DOUBLE
240 C2V_END
241
242 C2V_VMENTRY_NULL(jobject, getObjectAtAddress, (JNIEnv* env, jobject c2vm, jlong oop_address))
243 requireInHotSpot("getObjectAtAddress", JVMCI_CHECK_NULL);
244 if (oop_address == 0) {
245 JVMCI_THROW_MSG_NULL(InternalError, "Handle must be non-zero");
246 }
247 oop obj = *((oopDesc**) oop_address);
248 if (obj != NULL) {
249 oopDesc::verify(obj);
250 }
251 return JNIHandles::make_local(obj);
252 C2V_END
253
254 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, jobject jvmci_method))
255 methodHandle method = JVMCIENV->asMethod(jvmci_method);
256
257 int code_size = method->code_size();
258 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
259
260 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
261 // iterate over all bytecodes and replace non-Java bytecodes
262
263 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
264 Bytecodes::Code code = s.code();
265 Bytecodes::Code raw_code = s.raw_code();
266 int bci = s.bci();
267 int len = s.instruction_size();
268
269 // Restore original byte code.
270 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
271 if (len > 1) {
272 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
273 }
274
275 if (len > 1) {
313 case Bytecodes::_fast_aldc_w: {
314 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
315 int cp_index = method->constants()->object_to_cp_index(cpc_index);
316 assert(cp_index < method->constants()->length(), "sanity check");
317 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
318 break;
319 }
320
321 default:
322 break;
323 }
324 }
325 }
326
327 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
328 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
329 return JVMCIENV->get_jbyteArray(result);
330 C2V_END
331
332 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
333 methodHandle method = JVMCIENV->asMethod(jvmci_method);
334 return method->exception_table_length();
335 C2V_END
336
337 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
338 methodHandle method = JVMCIENV->asMethod(jvmci_method);
339 if (method->exception_table_length() == 0) {
340 return 0L;
341 }
342 return (jlong) (address) method->exception_table_start();
343 C2V_END
344
345 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
346 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
347 oop executable = JNIHandles::resolve(executable_handle);
348 oop mirror = NULL;
349 int slot = 0;
350
351 if (executable->klass() == SystemDictionary::reflect_Constructor_klass()) {
352 mirror = java_lang_reflect_Constructor::clazz(executable);
353 slot = java_lang_reflect_Constructor::slot(executable);
354 } else {
355 assert(executable->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
356 mirror = java_lang_reflect_Method::clazz(executable);
357 slot = java_lang_reflect_Method::slot(executable);
358 }
359 Klass* holder = java_lang_Class::as_Klass(mirror);
360 methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
361 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
362 return JVMCIENV->get_jobject(result);
363 }
364
365 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
366 methodHandle method;
367 JVMCIObject base_object = JVMCIENV->wrap(base);
368 if (base_object.is_null()) {
369 method = *((Method**)(offset));
370 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
371 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
372 if (obj->is_a(SystemDictionary::ResolvedMethodName_klass())) {
373 method = (Method*) (intptr_t) obj->long_field(offset);
374 } else {
375 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
376 }
377 } else if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
378 method = JVMCIENV->asMethod(base_object);
379 }
380 if (method.is_null()) {
381 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
382 }
383 assert (method.is_null() || method->is_method(), "invalid read");
384 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
385 return JVMCIENV->get_jobject(result);
386 }
387
388 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, jobject object_handle))
389 constantPoolHandle cp;
390 JVMCIObject object = JVMCIENV->wrap(object_handle);
391 if (object.is_null()) {
392 JVMCI_THROW_NULL(NullPointerException);
393 }
394 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(object)) {
395 cp = JVMCIENV->asMethod(object)->constMethod()->constants();
396 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(object)) {
397 cp = InstanceKlass::cast(JVMCIENV->asKlass(object))->constants();
398 } else {
399 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
400 err_msg("Unexpected type: %s", JVMCIENV->klass_name(object)));
401 }
402 assert(!cp.is_null(), "npe");
403
404 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(cp, JVMCI_CHECK_NULL);
405 return JVMCIENV->get_jobject(result);
406 }
407
408 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
409 JVMCIKlassHandle klass(THREAD);
410 JVMCIObject base_object = JVMCIENV->wrap(base);
411 jlong base_address = 0;
412 if (base_object.is_non_null() && offset == oopDesc::klass_offset_in_bytes()) {
413 // klass = JVMCIENV->unhandle(base_object)->klass();
414 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
415 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
416 klass = base_oop->klass();
417 } else {
418 assert(false, "What types are we actually expecting here?");
419 }
420 } else if (!compressed) {
421 if (base_object.is_non_null()) {
422 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
423 base_address = (intptr_t) JVMCIENV->asMethod(base_object);
424 } else if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
432 }
433 }
434 if (base_address == 0) {
435 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
436 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", JVMCIENV->klass_name(base_object), offset, compressed ? "true" : "false"));
437 }
438 }
439 klass = *((Klass**) (intptr_t) (base_address + offset));
440 } else {
441 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
442 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s",
443 base_object.is_non_null() ? JVMCIENV->klass_name(base_object) : "null",
444 offset, compressed ? "true" : "false"));
445 }
446 assert (klass == NULL || klass->is_klass(), "invalid read");
447 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
448 return JVMCIENV->get_jobject(result);
449 }
450
451 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
452 methodHandle method = JVMCIENV->asMethod(jvmci_method);
453 Klass* holder = JVMCIENV->asKlass(jvmci_type);
454 if (holder->is_interface()) {
455 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
456 }
457 if (method->can_be_statically_bound()) {
458 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name()));
459 }
460
461 methodHandle ucm;
462 {
463 MutexLocker locker(Compile_lock);
464 ucm = Dependencies::find_unique_concrete_method(holder, method());
465 }
466 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
467 return JVMCIENV->get_jobject(result);
468 C2V_END
469
470 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, jobject jvmci_type))
471 Klass* klass = JVMCIENV->asKlass(jvmci_type);
472 if (!klass->is_interface()) {
473 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
474 err_msg("Expected interface type, got %s", klass->external_name()));
475 }
476 InstanceKlass* iklass = InstanceKlass::cast(klass);
477 JVMCIKlassHandle handle(THREAD);
478 {
479 // Need Compile_lock around implementor()
480 MutexLocker locker(Compile_lock);
481 handle = iklass->implementor();
482 }
483 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
484 return JVMCIENV->get_jobject(implementor);
485 C2V_END
486
487 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, jobject jvmci_method))
488 methodHandle method = JVMCIENV->asMethod(jvmci_method);
489 return method->is_ignored_by_security_stack_walk();
490 C2V_END
491
492 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
493 methodHandle method = JVMCIENV->asMethod(jvmci_method);
494 constantPoolHandle cp = method->constMethod()->constants();
495 assert(!cp.is_null(), "npe");
496 // don't inline method when constant pool contains a CONSTANT_Dynamic
497 return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant();
498 C2V_END
499
500 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, jobject jvmci_method))
501 methodHandle method = JVMCIENV->asMethod(jvmci_method);
502 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
503 C2V_END
504
505 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, jobject jvmci_method))
506 methodHandle method = JVMCIENV->asMethod(jvmci_method);
507 return CompilerOracle::should_inline(method) || method->force_inline();
508 C2V_END
509
510 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, jclass accessing_class, jboolean resolve))
511 JVMCIObject name = JVMCIENV->wrap(jname);
512 const char* str = JVMCIENV->as_utf8_string(name);
513 TempNewSymbol class_name = SymbolTable::new_symbol(str);
514
515 if (class_name->utf8_length() <= 1) {
516 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
517 }
518
519 JVMCIKlassHandle resolved_klass(THREAD);
520 Klass* accessing_klass = NULL;
521 Handle class_loader;
522 Handle protection_domain;
523 if (accessing_class != NULL) {
524 accessing_klass = JVMCIENV->asKlass(accessing_class);
525 class_loader = Handle(THREAD, accessing_klass->class_loader());
526 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
594 }
595 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
596 return JVMCIENV->get_jobject(result);
597 C2V_END
598
599 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
600 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
601 if (mirror == NULL) {
602 return NULL;
603 }
604 JVMCIKlassHandle klass(THREAD);
605 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
606 if (klass == NULL) {
607 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
608 }
609 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
610 return JVMCIENV->get_jobject(result);
611 }
612
613 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
614 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
615 oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
616 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(result));
617 C2V_END
618
619 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
620 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
621 return cp->name_and_type_ref_index_at(index);
622 C2V_END
623
624 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
625 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
626 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
627 return JVMCIENV->get_jobject(sym);
628 C2V_END
629
630 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
631 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
632 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
633 return JVMCIENV->get_jobject(sym);
634 C2V_END
635
636 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
637 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
638 return cp->klass_ref_index_at(index);
639 C2V_END
640
641 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
642 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
643 Klass* klass = cp->klass_at(index, CHECK_NULL);
644 JVMCIKlassHandle resolved_klass(THREAD, klass);
645 if (resolved_klass->is_instance_klass()) {
646 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
647 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
648 // link_class() should not return here if there is an issue.
649 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
650 }
651 }
652 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
653 return JVMCIENV->get_jobject(klassObject);
654 C2V_END
655
656 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
657 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
658 Klass* loading_klass = cp->pool_holder();
659 bool is_accessible = false;
660 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
661 Symbol* symbol = NULL;
662 if (klass.is_null()) {
663 constantTag tag = cp->tag_at(index);
664 if (tag.is_klass()) {
665 // The klass has been inserted into the constant pool
666 // very recently.
667 klass = cp->resolved_klass_at(index);
668 } else if (tag.is_symbol()) {
669 symbol = cp->symbol_at(index);
670 } else {
671 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
672 symbol = cp->klass_name_at(index);
673 }
674 }
675 JVMCIObject result;
676 if (!klass.is_null()) {
677 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
678 } else {
679 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
680 }
681 return JVMCIENV->get_jobject(result);
682 C2V_END
683
684 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
685 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
686 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
687 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
688 C2V_END
689
690 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
691 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
692 InstanceKlass* pool_holder = cp->pool_holder();
693 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
694 methodHandle method = JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder);
695 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
696 return JVMCIENV->get_jobject(result);
697 C2V_END
698
699 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
700 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
701 return cp->remap_instruction_operand_from_cache(index);
702 C2V_END
703
704 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
705 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
706 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
707 fieldDescriptor fd;
708 LinkInfo link_info(cp, index, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL, CHECK_0);
709 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
710 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
711 if (info.is_null() || JVMCIENV->get_length(info) != 3) {
712 JVMCI_ERROR_NULL("info must not be null and have a length of 3");
713 }
714 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
715 JVMCIENV->put_int_at(info, 1, fd.offset());
716 JVMCIENV->put_int_at(info, 2, fd.index());
717 JVMCIKlassHandle handle(THREAD, fd.field_holder());
718 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
719 return JVMCIENV->get_jobject(field_holder);
720 C2V_END
721
722 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
723 Klass* klass = JVMCIENV->asKlass(jvmci_type);
724 Method* method = JVMCIENV->asMethod(jvmci_method);
725 if (klass->is_interface()) {
726 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
727 }
728 if (!method->method_holder()->is_interface()) {
729 JVMCI_THROW_MSG_0(InternalError, err_msg("Method %s is not held by an interface, this case should be handled in Java code", method->name_and_sig_as_C_string()));
730 }
731 if (!klass->is_instance_klass()) {
732 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
733 }
734 if (!InstanceKlass::cast(klass)->is_linked()) {
735 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
736 }
737 return LinkResolver::vtable_index_of_interface_method(klass, method);
738 C2V_END
739
740 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
741 Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type);
742 Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type);
743 methodHandle method = JVMCIENV->asMethod(jvmci_method);
744
745 Klass* resolved = method->method_holder();
746 Symbol* h_name = method->name();
747 Symbol* h_signature = method->signature();
748
749 if (MethodHandles::is_signature_polymorphic_method(method())) {
750 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
751 return NULL;
752 }
753
754 if (method->name() == vmSymbols::clone_name() &&
755 resolved == SystemDictionary::Object_klass() &&
756 recv_klass->is_array_klass()) {
757 // Resolution of the clone method on arrays always returns Object.clone even though that method
758 // has protected access. There's some trickery in the access checking to make this all work out
759 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
760 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
761 // LinkResolver::check_method_accessability for the matching logic.
762 resolved = recv_klass;
763 }
764
765 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
766 methodHandle m;
767 // Only do exact lookup if receiver klass has been linked. Otherwise,
768 // the vtable has not been setup, and the LinkResolver will fail.
769 if (recv_klass->is_array_klass() ||
770 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
771 if (resolved->is_interface()) {
772 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
773 } else {
774 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
775 }
776 }
777
778 if (m.is_null()) {
779 // Return NULL if there was a problem with lookup (uninitialized class, etc.)
780 return NULL;
781 }
782
783 JVMCIObject result = JVMCIENV->get_jvmci_method(m, JVMCI_CHECK_NULL);
784 return JVMCIENV->get_jobject(result);
785 C2V_END
786
787 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type))
788 Klass* klass = JVMCIENV->asKlass(jvmci_type);
789 assert(klass != NULL, "method must not be called for primitive types");
790 return Dependencies::find_finalizable_subclass(klass) != NULL;
791 C2V_END
792
793 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type))
794 Klass* klass = JVMCIENV->asKlass(jvmci_type);
795 if (!klass->is_instance_klass()) {
796 return NULL;
797 }
798 InstanceKlass* iklass = InstanceKlass::cast(klass);
799 JVMCIObject result = JVMCIENV->get_jvmci_method(iklass->class_initializer(), JVMCI_CHECK_NULL);
800 return JVMCIENV->get_jobject(result);
801 C2V_END
802
803 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
804 address target_addr = (address) addr;
805 if (target_addr != 0x0) {
806 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
807 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
808 return MAX2(ABS(off_low), ABS(off_high));
809 }
810 return -1;
811 C2V_END
812
813 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
814 methodHandle method = JVMCIENV->asMethod(jvmci_method);
815 method->set_not_c1_compilable();
816 method->set_not_c2_compilable();
817 method->set_dont_inline(true);
818 C2V_END
819
820 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code,
821 jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj))
822 HandleMark hm;
823 JNIHandleMark jni_hm(thread);
824
825 JVMCIObject target_handle = JVMCIENV->wrap(target);
826 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
827 CodeBlob* cb = NULL;
828 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
829 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
830
831 int speculations_len = JVMCIENV->get_length(speculations_handle);
832 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
833 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
834
990 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
991 stringStream st(buffer, bufferSize);
992 if (cb->is_nmethod()) {
993 nmethod* nm = (nmethod*) cb;
994 if (!nm->is_alive()) {
995 return NULL;
996 }
997 }
998 Disassembler::decode(cb, &st);
999 if (st.size() <= 0) {
1000 return NULL;
1001 }
1002
1003 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1004 return JVMCIENV->get_jobject(result);
1005 C2V_END
1006
1007 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci))
1008 HandleMark hm;
1009
1010 methodHandle method = JVMCIENV->asMethod(jvmci_method);
1011 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1012 return JVMCIENV->get_jobject(element);
1013 C2V_END
1014
1015 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1016 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1017 // and the return value would have to be wrapped as a JavaConstant.
1018 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1019
1020 HandleMark hm;
1021
1022 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1023 nmethod* nm = JVMCIENV->asNmethod(nmethod_mirror);
1024 if (nm == NULL) {
1025 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1026 }
1027 methodHandle mh = nm->method();
1028 Symbol* signature = mh->signature();
1029 JavaCallArguments jca(mh->size_of_parameters());
1030
1031 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1032 JavaValue result(jap.get_ret_type());
1033 jca.set_alternative_target(nm);
1034 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1035
1036 if (jap.get_ret_type() == T_VOID) {
1037 return NULL;
1038 } else if (is_reference_type(jap.get_ret_type())) {
1039 return JNIHandles::make_local((oop) result.get_jobject());
1040 } else {
1041 jvalue *value = (jvalue *) result.get_value_addr();
1042 // Narrow the value down if required (Important on big endian machines)
1043 switch (jap.get_ret_type()) {
1044 case T_BOOLEAN:
1045 value->z = (jboolean) value->i;
1046 break;
1047 case T_BYTE:
1085 i += 2;
1086 }
1087
1088 return (jlongArray) JVMCIENV->get_jobject(result);
1089 C2V_END
1090
1091 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
1092 Method* method = JVMCIENV->asMethod(jvmci_method);
1093 if (!method->has_localvariable_table()) {
1094 return 0;
1095 }
1096 return (jlong) (address) method->localvariable_table_start();
1097 C2V_END
1098
1099 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
1100 Method* method = JVMCIENV->asMethod(jvmci_method);
1101 return method->localvariable_table_length();
1102 C2V_END
1103
1104 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method))
1105 Method* method = JVMCIENV->asMethod(jvmci_method);
1106 MethodCounters* mcs = method->method_counters();
1107 if (mcs != NULL) {
1108 mcs->clear_counters();
1109 }
1110 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1111
1112 CompiledMethod* code = method->code();
1113 if (code != NULL) {
1114 code->make_not_entrant();
1115 }
1116
1117 MethodData* method_data = method->method_data();
1118 if (method_data == NULL) {
1119 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1120 method_data = MethodData::allocate(loader_data, method, CHECK);
1121 method->set_method_data(method_data);
1122 } else {
1123 method_data->initialize();
1124 }
1125 C2V_END
1142 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1143 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1144 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1145 }
1146 return (jlongArray) JVMCIENV->get_jobject(array);
1147 C2V_END
1148
1149 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1150 return (jint) JVMCICounterSize;
1151 C2V_END
1152
1153 C2V_VMENTRY(void, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1154 JavaThread::resize_all_jvmci_counters(new_size);
1155 C2V_END
1156
1157 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci))
1158 HandleMark hm;
1159 if (jvmci_method == NULL) {
1160 JVMCI_THROW_0(NullPointerException);
1161 }
1162 Method* method = JVMCIENV->asMethod(jvmci_method);
1163 if (entry_bci >= method->code_size() || entry_bci < -1) {
1164 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1165 }
1166 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1167 C2V_END
1168
1169
1170 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data))
1171 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1172 return mdo != NULL && mdo->is_mature();
1173 C2V_END
1174
1175 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1176 Method* method = JVMCIENV->asMethod(jvmci_method);
1177 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1178 C2V_END
1179
1180 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1181 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1182 return JVMCIENV->get_jobject(sym);
1184
1185 bool matches(jobjectArray methods, Method* method, JVMCIEnv* JVMCIENV) {
1186 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1187
1188 for (int i = 0; i < methods_oop->length(); i++) {
1189 oop resolved = methods_oop->obj_at(i);
1190 if ((resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) && HotSpotJVMCI::asMethod(JVMCIENV, resolved) == method) {
1191 return true;
1192 }
1193 }
1194 return false;
1195 }
1196
1197 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1198 CallInfo callinfo;
1199 Handle receiver = args->receiver();
1200 Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
1201 LinkInfo link_info(spec_klass, name, signature);
1202 LinkResolver::resolve_interface_call(
1203 callinfo, receiver, recvrKlass, link_info, true, CHECK);
1204 methodHandle method = callinfo.selected_method();
1205 assert(method.not_null(), "should have thrown exception");
1206
1207 // Invoke the method
1208 JavaCalls::call(result, method, args, CHECK);
1209 }
1210
1211 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1212
1213 if (!thread->has_last_Java_frame()) {
1214 return NULL;
1215 }
1216 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1217
1218 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1219
1220 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1221 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1222
1223 StackFrameStream fst(thread);
1224 jobjectArray methods = initial_methods;
1258 Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false);
1259 realloc_called = true;
1260
1261 GrowableArray<ScopeValue*>* local_values = scope->locals();
1262 assert(local_values != NULL, "NULL locals");
1263 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1264 typeArrayHandle array(THREAD, array_oop);
1265 for (int i = 0; i < local_values->length(); i++) {
1266 ScopeValue* value = local_values->at(i);
1267 if (value->is_object()) {
1268 array->bool_at_put(i, true);
1269 }
1270 }
1271 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), array());
1272 } else {
1273 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1274 }
1275
1276 locals = cvf->locals();
1277 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), cvf->bci());
1278 JVMCIObject method = JVMCIENV->get_jvmci_method(cvf->method(), JVMCI_CHECK_NULL);
1279 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1280 }
1281 }
1282 } else if (vf->is_interpreted_frame()) {
1283 // interpreted method frame
1284 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1285 if (methods == NULL || matches(methods, ivf->method(), JVMCIENV)) {
1286 if (initialSkip > 0) {
1287 initialSkip--;
1288 } else {
1289 locals = ivf->locals();
1290 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), ivf->bci());
1291 JVMCIObject method = JVMCIENV->get_jvmci_method(ivf->method(), JVMCI_CHECK_NULL);
1292 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1293 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1294 }
1295 }
1296 }
1297
1298 // locals != NULL means that we found a matching frame and result is already partially initialized
1299 if (locals != NULL) {
1300 methods = match_methods;
1301 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1302 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) fst.current()->sp());
1303 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1304
1305 // initialize the locals array
1306 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1307 objArrayHandle array(THREAD, array_oop);
1308 for (int i = 0; i < locals->size(); i++) {
1309 StackValue* var = locals->at(i);
1310 if (var->type() == T_OBJECT) {
1311 array->obj_at_put(i, locals->at(i)->get_obj()());
1351 if (vf->is_top()) {
1352 break;
1353 }
1354 frame_number++;
1355 vf = vf->sender();
1356 } // end of vframe loop
1357
1358 if (fst.is_done()) {
1359 break;
1360 }
1361 fst.next();
1362 vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1363 frame_number = 0;
1364 } // end of frame loop
1365
1366 // the end was reached without finding a matching method
1367 return NULL;
1368 C2V_END
1369
1370 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1371 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1372 CallInfo callInfo;
1373 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1374 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1375 cp_cache_entry->set_dynamic_call(cp, callInfo);
1376 C2V_END
1377
1378 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1379 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1380 Klass* holder = cp->klass_ref_at(index, CHECK);
1381 Symbol* name = cp->name_ref_at(index);
1382 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1383 CallInfo callInfo;
1384 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1385 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1386 cp_cache_entry->set_method_handle(cp, callInfo);
1387 }
1388 C2V_END
1389
1390 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1391 constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1392 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1393 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1394 // MethodHandle.invoke* --> LambdaForm?
1395 ResourceMark rm;
1396
1397 LinkInfo link_info(cp, index, CATCH);
1398
1399 Klass* resolved_klass = link_info.resolved_klass();
1400
1401 Symbol* name_sym = cp->name_ref_at(index);
1402
1403 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1404 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1405
1406 methodHandle adapter_method(cp_cache_entry->f1_as_method());
1407
1408 methodHandle resolved_method(adapter_method);
1409
1410 // Can we treat it as a regular invokevirtual?
1411 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1412 vmassert(!resolved_method->is_static(),"!");
1413 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1414 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1415 vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1416
1417 methodHandle m(LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1418 vmassert(m == resolved_method, "!!");
1419 return -1;
1420 }
1421
1422 return Bytecodes::_invokevirtual;
1423 }
1424 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1425 return Bytecodes::_invokedynamic;
1426 }
1427 return -1;
1428 C2V_END
1429
1430
1431 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1432 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1433 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1434 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1435 JVMCIENV->put_object_at(holders, 0, mh);
1436 JVMCIENV->put_object_at(holders, 1, vh);
1437 return JVMCIENV->get_jobject(holders);
1890 }
1891 Klass* klass = JVMCIENV->asKlass(holder);
1892 if (!klass->is_instance_klass()) {
1893 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1894 return JVMCIENV->get_jobjectArray(methods);
1895 }
1896
1897 InstanceKlass* iklass = InstanceKlass::cast(klass);
1898 // Ensure class is linked
1899 iklass->link_class(CHECK_NULL);
1900
1901 GrowableArray<Method*> constructors_array;
1902 for (int i = 0; i < iklass->methods()->length(); i++) {
1903 Method* m = iklass->methods()->at(i);
1904 if (m->is_initializer() && !m->is_static()) {
1905 constructors_array.append(m);
1906 }
1907 }
1908 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1909 for (int i = 0; i < constructors_array.length(); i++) {
1910 JVMCIObject method = JVMCIENV->get_jvmci_method(constructors_array.at(i), JVMCI_CHECK_NULL);
1911 JVMCIENV->put_object_at(methods, i, method);
1912 }
1913 return JVMCIENV->get_jobjectArray(methods);
1914 C2V_END
1915
1916 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder))
1917 if (holder == NULL) {
1918 JVMCI_THROW_0(NullPointerException);
1919 }
1920 Klass* klass = JVMCIENV->asKlass(holder);
1921 if (!klass->is_instance_klass()) {
1922 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1923 return JVMCIENV->get_jobjectArray(methods);
1924 }
1925
1926 InstanceKlass* iklass = InstanceKlass::cast(klass);
1927 // Ensure class is linked
1928 iklass->link_class(CHECK_NULL);
1929
1930 GrowableArray<Method*> methods_array;
1931 for (int i = 0; i < iklass->methods()->length(); i++) {
1932 Method* m = iklass->methods()->at(i);
1933 if (!m->is_initializer() && !m->is_overpass()) {
1934 methods_array.append(m);
1935 }
1936 }
1937 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1938 for (int i = 0; i < methods_array.length(); i++) {
1939 JVMCIObject method = JVMCIENV->get_jvmci_method(methods_array.at(i), JVMCI_CHECK_NULL);
1940 JVMCIENV->put_object_at(methods, i, method);
1941 }
1942 return JVMCIENV->get_jobjectArray(methods);
1943 C2V_END
1944
1945 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject field, jboolean is_volatile))
1946 if (object == NULL || field == NULL) {
1947 JVMCI_THROW_0(NullPointerException);
1948 }
1949 JVMCIObject field_object = JVMCIENV->wrap(field);
1950 JVMCIObject java_type = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_type(field_object);
1951 int modifiers = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_modifiers(field_object);
1952 Klass* holder = JVMCIENV->asKlass(JVMCIENV->get_HotSpotResolvedJavaFieldImpl_holder(field_object));
1953 if (!holder->is_instance_klass()) {
1954 JVMCI_THROW_MSG_0(InternalError, err_msg("Holder %s must be instance klass", holder->external_name()));
1955 }
1956 InstanceKlass* ik = InstanceKlass::cast(holder);
1957 BasicType constant_type;
1958 if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(java_type)) {
1959 constant_type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(java_type), JVMCI_CHECK_NULL);
2240 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerEnv);
2241 if (peerEnv->has_pending_exception()) {
2242 peerEnv->describe_pending_exception(true);
2243 }
2244 shared_library = JVMCIEnv::get_shared_library_handle();
2245 if (shared_library == NULL) {
2246 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2247 }
2248 }
2249
2250 if (mirror == NULL) {
2251 JVMCI_THROW_0(NullPointerException);
2252 }
2253 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2254 if (klass == NULL || !klass->is_instance_klass()) {
2255 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2256 }
2257
2258 InstanceKlass* iklass = InstanceKlass::cast(klass);
2259 for (int i = 0; i < iklass->methods()->length(); i++) {
2260 Method* method = iklass->methods()->at(i);
2261 if (method->is_native()) {
2262
2263 // Compute argument size
2264 int args_size = 1 // JNIEnv
2265 + (method->is_static() ? 1 : 0) // class for static methods
2266 + method->size_of_parameters(); // actual parameters
2267
2268 // 1) Try JNI short style
2269 stringStream st;
2270 char* pure_name = NativeLookup::pure_jni_name(method);
2271 os::print_jni_name_prefix_on(&st, args_size);
2272 st.print_raw(pure_name);
2273 os::print_jni_name_suffix_on(&st, args_size);
2274 char* jni_name = st.as_string();
2275
2276 address entry = (address) os::dll_lookup(shared_library, jni_name);
2277 if (entry == NULL) {
2278 // 2) Try JNI long style
2279 st.reset();
2280 char* long_name = NativeLookup::long_jni_name(method);
2408 extern struct JavaVM_ main_vm;
2409 jint res = main_vm.DetachCurrentThread();
2410 if (res != JNI_OK) {
2411 JNI_THROW("detachCurrentThread", InternalError, err_msg("Cannot detach non-attached thread"));
2412 }
2413 }
2414 C2V_END
2415
2416 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
2417 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2418 if (obj_handle == NULL) {
2419 return 0L;
2420 }
2421 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2422 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2423 JVMCIEnv* thisEnv = JVMCIENV;
2424
2425 JVMCIObject obj = thisEnv->wrap(obj_handle);
2426 JVMCIObject result;
2427 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2428 Method* method = thisEnv->asMethod(obj);
2429 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2430 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2431 Klass* klass = thisEnv->asKlass(obj);
2432 JVMCIKlassHandle klass_handle(THREAD);
2433 klass_handle = klass;
2434 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2435 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2436 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2437 result = peerEnv->get_jvmci_primitive_type(type);
2438 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2439 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2440 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2441 result = peerEnv->get_object_constant(constant());
2442 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2443 nmethod* nm = thisEnv->asNmethod(obj);
2444 if (nm != NULL) {
2445 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2446 if (data != NULL) {
2447 if (peerEnv->is_hotspot()) {
2448 // Only the mirror in the HotSpot heap is accessible
2449 // through JVMCINMethodData
2450 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2451 if (nmethod_mirror != NULL) {
2452 result = HotSpotJVMCI::wrap(nmethod_mirror);
2453 }
2454 }
2455 }
2456 }
2457 if (result.is_null()) {
2458 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2459 methodHandle mh = thisEnv->asMethod(methodObject);
2460 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2461 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2462 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2463 const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string);
2464 // Create a new HotSpotNmethod instance in the peer runtime
2465 result = peerEnv->new_HotSpotNmethod(mh(), cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2466 if (nm == NULL) {
2467 // nmethod must have been unloaded
2468 } else {
2469 // Link the new HotSpotNmethod to the nmethod
2470 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2471 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2472 if (peerEnv->is_hotspot()) {
2473 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2474 if (data == NULL) {
2475 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2476 }
2477 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) {
2478 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2479 }
2480 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2481 data->set_nmethod_mirror(nm, nmethod_mirror);
2482 }
2483 }
2484 }
2485 } else {
2505 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2506 JVMCIObject code = JVMCIENV->wrap(code_handle);
2507 // Execute this operation for the side effect of updating the InstalledCode state
2508 JVMCIENV->asNmethod(code);
2509 }
2510
2511 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2512 JVMCIObject code = JVMCIENV->wrap(code_handle);
2513 CodeBlob* cb = JVMCIENV->asCodeBlob(code);
2514 if (cb == NULL) {
2515 return NULL;
2516 }
2517 int code_size = cb->code_size();
2518 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2519 JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size);
2520 return JVMCIENV->get_jbyteArray(result);
2521 }
2522
2523 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method))
2524 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2525 methodHandle m = JVMCIENV->asMethod(jvmci_method);
2526 oop executable;
2527 if (m->is_initializer()) {
2528 if (m->is_static_initializer()) {
2529 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2530 "Cannot create java.lang.reflect.Method for class initializer");
2531 }
2532 executable = Reflection::new_constructor(m, CHECK_NULL);
2533 } else {
2534 executable = Reflection::new_method(m, false, CHECK_NULL);
2535 }
2536 return JNIHandles::make_local(THREAD, executable);
2537 }
2538
2539 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index))
2540 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2541 Klass* klass = JVMCIENV->asKlass(jvmci_type);
2542 if (!klass->is_instance_klass()) {
2543 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2544 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2545 }
2570 return current;
2571 }
2572 }
2573 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2574 int result_index = 0;
2575 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2576 assert(fs != NULL, "npe");
2577 JVMCIPrimitiveArray entry;
2578 if (result_index < current_length) {
2579 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2580 } else {
2581 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2582 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2583 }
2584 JVMCIENV->put_object_at(result, result_index++, entry);
2585 }
2586 return JVMCIENV->get_jobjectArray(result);
2587 }
2588
2589 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method))
2590 methodHandle method = JVMCIENV->asMethod(jvmci_method);
2591 MethodData* method_data = method->method_data();
2592 if (method_data == NULL) {
2593 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2594 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2595 method->set_method_data(method_data);
2596 }
2597 return (jlong) method_data->get_failed_speculations_address();
2598 }
2599
2600 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2601 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2602 }
2603
2604 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2605 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2606 int speculation_len = JVMCIENV->get_length(speculation_handle);
2607 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2608 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2609 return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2610 }
|
235 } else {
236 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type);
237 }
238 #undef RETURN_BOXED_LONG
239 #undef RETURN_BOXED_DOUBLE
240 C2V_END
241
242 C2V_VMENTRY_NULL(jobject, getObjectAtAddress, (JNIEnv* env, jobject c2vm, jlong oop_address))
243 requireInHotSpot("getObjectAtAddress", JVMCI_CHECK_NULL);
244 if (oop_address == 0) {
245 JVMCI_THROW_MSG_NULL(InternalError, "Handle must be non-zero");
246 }
247 oop obj = *((oopDesc**) oop_address);
248 if (obj != NULL) {
249 oopDesc::verify(obj);
250 }
251 return JNIHandles::make_local(obj);
252 C2V_END
253
254 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, jobject jvmci_method))
255 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
256
257 int code_size = method->code_size();
258 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
259
260 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
261 // iterate over all bytecodes and replace non-Java bytecodes
262
263 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
264 Bytecodes::Code code = s.code();
265 Bytecodes::Code raw_code = s.raw_code();
266 int bci = s.bci();
267 int len = s.instruction_size();
268
269 // Restore original byte code.
270 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code);
271 if (len > 1) {
272 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
273 }
274
275 if (len > 1) {
313 case Bytecodes::_fast_aldc_w: {
314 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
315 int cp_index = method->constants()->object_to_cp_index(cpc_index);
316 assert(cp_index < method->constants()->length(), "sanity check");
317 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
318 break;
319 }
320
321 default:
322 break;
323 }
324 }
325 }
326
327 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
328 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
329 return JVMCIENV->get_jbyteArray(result);
330 C2V_END
331
332 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
333 Method* method = JVMCIENV->asMethod(jvmci_method);
334 return method->exception_table_length();
335 C2V_END
336
337 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
338 Method* method = JVMCIENV->asMethod(jvmci_method);
339 if (method->exception_table_length() == 0) {
340 return 0L;
341 }
342 return (jlong) (address) method->exception_table_start();
343 C2V_END
344
345 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
346 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
347 oop executable = JNIHandles::resolve(executable_handle);
348 oop mirror = NULL;
349 int slot = 0;
350
351 if (executable->klass() == SystemDictionary::reflect_Constructor_klass()) {
352 mirror = java_lang_reflect_Constructor::clazz(executable);
353 slot = java_lang_reflect_Constructor::slot(executable);
354 } else {
355 assert(executable->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
356 mirror = java_lang_reflect_Method::clazz(executable);
357 slot = java_lang_reflect_Method::slot(executable);
358 }
359 Klass* holder = java_lang_Class::as_Klass(mirror);
360 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot));
361 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
362 return JVMCIENV->get_jobject(result);
363 }
364
365 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
366 Method* method;
367 JVMCIObject base_object = JVMCIENV->wrap(base);
368 if (base_object.is_null()) {
369 method = *((Method**)(offset));
370 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
371 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
372 if (obj->is_a(SystemDictionary::ResolvedMethodName_klass())) {
373 method = (Method*) (intptr_t) obj->long_field(offset);
374 } else {
375 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
376 }
377 } else if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
378 method = JVMCIENV->asMethod(base_object);
379 }
380 if (method == NULL) {
381 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
382 }
383 assert (method->is_method(), "invalid read");
384 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL);
385 return JVMCIENV->get_jobject(result);
386 }
387
388 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, jobject object_handle))
389 ConstantPool* cp = NULL;
390 JVMCIObject object = JVMCIENV->wrap(object_handle);
391 if (object.is_null()) {
392 JVMCI_THROW_NULL(NullPointerException);
393 }
394 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(object)) {
395 cp = JVMCIENV->asMethod(object)->constMethod()->constants();
396 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(object)) {
397 cp = InstanceKlass::cast(JVMCIENV->asKlass(object))->constants();
398 } else {
399 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
400 err_msg("Unexpected type: %s", JVMCIENV->klass_name(object)));
401 }
402 assert(cp != NULL, "npe");
403
404 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL);
405 return JVMCIENV->get_jobject(result);
406 }
407
408 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
409 JVMCIKlassHandle klass(THREAD);
410 JVMCIObject base_object = JVMCIENV->wrap(base);
411 jlong base_address = 0;
412 if (base_object.is_non_null() && offset == oopDesc::klass_offset_in_bytes()) {
413 // klass = JVMCIENV->unhandle(base_object)->klass();
414 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
415 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
416 klass = base_oop->klass();
417 } else {
418 assert(false, "What types are we actually expecting here?");
419 }
420 } else if (!compressed) {
421 if (base_object.is_non_null()) {
422 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
423 base_address = (intptr_t) JVMCIENV->asMethod(base_object);
424 } else if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
432 }
433 }
434 if (base_address == 0) {
435 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
436 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", JVMCIENV->klass_name(base_object), offset, compressed ? "true" : "false"));
437 }
438 }
439 klass = *((Klass**) (intptr_t) (base_address + offset));
440 } else {
441 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
442 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s",
443 base_object.is_non_null() ? JVMCIENV->klass_name(base_object) : "null",
444 offset, compressed ? "true" : "false"));
445 }
446 assert (klass == NULL || klass->is_klass(), "invalid read");
447 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
448 return JVMCIENV->get_jobject(result);
449 }
450
451 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
452 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method));
453 Klass* holder = JVMCIENV->asKlass(jvmci_type);
454 if (holder->is_interface()) {
455 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
456 }
457 if (method->can_be_statically_bound()) {
458 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name()));
459 }
460
461 methodHandle ucm;
462 {
463 MutexLocker locker(Compile_lock);
464 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method()));
465 }
466 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
467 return JVMCIENV->get_jobject(result);
468 C2V_END
469
470 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, jobject jvmci_type))
471 Klass* klass = JVMCIENV->asKlass(jvmci_type);
472 if (!klass->is_interface()) {
473 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
474 err_msg("Expected interface type, got %s", klass->external_name()));
475 }
476 InstanceKlass* iklass = InstanceKlass::cast(klass);
477 JVMCIKlassHandle handle(THREAD);
478 {
479 // Need Compile_lock around implementor()
480 MutexLocker locker(Compile_lock);
481 handle = iklass->implementor();
482 }
483 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
484 return JVMCIENV->get_jobject(implementor);
485 C2V_END
486
487 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, jobject jvmci_method))
488 Method* method = JVMCIENV->asMethod(jvmci_method);
489 return method->is_ignored_by_security_stack_walk();
490 C2V_END
491
492 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
493 Method* method = JVMCIENV->asMethod(jvmci_method);
494 ConstantPool* cp = method->constMethod()->constants();
495 assert(cp != NULL, "npe");
496 // don't inline method when constant pool contains a CONSTANT_Dynamic
497 return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant();
498 C2V_END
499
500 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, jobject jvmci_method))
501 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method));
502 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
503 C2V_END
504
505 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, jobject jvmci_method))
506 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method));
507 return CompilerOracle::should_inline(method) || method->force_inline();
508 C2V_END
509
510 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, jclass accessing_class, jboolean resolve))
511 JVMCIObject name = JVMCIENV->wrap(jname);
512 const char* str = JVMCIENV->as_utf8_string(name);
513 TempNewSymbol class_name = SymbolTable::new_symbol(str);
514
515 if (class_name->utf8_length() <= 1) {
516 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
517 }
518
519 JVMCIKlassHandle resolved_klass(THREAD);
520 Klass* accessing_klass = NULL;
521 Handle class_loader;
522 Handle protection_domain;
523 if (accessing_class != NULL) {
524 accessing_klass = JVMCIENV->asKlass(accessing_class);
525 class_loader = Handle(THREAD, accessing_klass->class_loader());
526 protection_domain = Handle(THREAD, accessing_klass->protection_domain());
594 }
595 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
596 return JVMCIENV->get_jobject(result);
597 C2V_END
598
599 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
600 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
601 if (mirror == NULL) {
602 return NULL;
603 }
604 JVMCIKlassHandle klass(THREAD);
605 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
606 if (klass == NULL) {
607 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
608 }
609 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
610 return JVMCIENV->get_jobject(result);
611 }
612
613 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
614 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
615 oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
616 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(result));
617 C2V_END
618
619 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
620 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
621 return cp->name_and_type_ref_index_at(index);
622 C2V_END
623
624 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
625 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
626 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
627 return JVMCIENV->get_jobject(sym);
628 C2V_END
629
630 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
631 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
632 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
633 return JVMCIENV->get_jobject(sym);
634 C2V_END
635
636 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
637 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
638 return cp->klass_ref_index_at(index);
639 C2V_END
640
641 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
642 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
643 Klass* klass = cp->klass_at(index, CHECK_NULL);
644 JVMCIKlassHandle resolved_klass(THREAD, klass);
645 if (resolved_klass->is_instance_klass()) {
646 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
647 if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
648 // link_class() should not return here if there is an issue.
649 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
650 }
651 }
652 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
653 return JVMCIENV->get_jobject(klassObject);
654 C2V_END
655
656 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
657 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
658 Klass* loading_klass = cp->pool_holder();
659 bool is_accessible = false;
660 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
661 Symbol* symbol = NULL;
662 if (klass.is_null()) {
663 constantTag tag = cp->tag_at(index);
664 if (tag.is_klass()) {
665 // The klass has been inserted into the constant pool
666 // very recently.
667 klass = cp->resolved_klass_at(index);
668 } else if (tag.is_symbol()) {
669 symbol = cp->symbol_at(index);
670 } else {
671 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
672 symbol = cp->klass_name_at(index);
673 }
674 }
675 JVMCIObject result;
676 if (!klass.is_null()) {
677 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
678 } else {
679 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
680 }
681 return JVMCIENV->get_jobject(result);
682 C2V_END
683
684 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
685 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
686 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
687 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
688 C2V_END
689
690 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
691 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
692 InstanceKlass* pool_holder = cp->pool_holder();
693 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
694 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder));
695 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
696 return JVMCIENV->get_jobject(result);
697 C2V_END
698
699 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
700 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
701 return cp->remap_instruction_operand_from_cache(index);
702 C2V_END
703
704 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
705 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
706 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
707 fieldDescriptor fd;
708 methodHandle mh(THREAD, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL);
709 LinkInfo link_info(cp, index, mh, CHECK_0);
710 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
711 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
712 if (info.is_null() || JVMCIENV->get_length(info) != 3) {
713 JVMCI_ERROR_NULL("info must not be null and have a length of 3");
714 }
715 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
716 JVMCIENV->put_int_at(info, 1, fd.offset());
717 JVMCIENV->put_int_at(info, 2, fd.index());
718 JVMCIKlassHandle handle(THREAD, fd.field_holder());
719 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
720 return JVMCIENV->get_jobject(field_holder);
721 C2V_END
722
723 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
724 Klass* klass = JVMCIENV->asKlass(jvmci_type);
725 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
726 if (klass->is_interface()) {
727 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
728 }
729 if (!method->method_holder()->is_interface()) {
730 JVMCI_THROW_MSG_0(InternalError, err_msg("Method %s is not held by an interface, this case should be handled in Java code", method->name_and_sig_as_C_string()));
731 }
732 if (!klass->is_instance_klass()) {
733 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
734 }
735 if (!InstanceKlass::cast(klass)->is_linked()) {
736 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
737 }
738 return LinkResolver::vtable_index_of_interface_method(klass, method);
739 C2V_END
740
741 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
742 Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type);
743 Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type);
744 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
745
746 Klass* resolved = method->method_holder();
747 Symbol* h_name = method->name();
748 Symbol* h_signature = method->signature();
749
750 if (MethodHandles::is_signature_polymorphic_method(method())) {
751 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
752 return NULL;
753 }
754
755 if (method->name() == vmSymbols::clone_name() &&
756 resolved == SystemDictionary::Object_klass() &&
757 recv_klass->is_array_klass()) {
758 // Resolution of the clone method on arrays always returns Object.clone even though that method
759 // has protected access. There's some trickery in the access checking to make this all work out
760 // so it's necessary to pass in the array class as the resolved class to properly trigger this.
761 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See
762 // LinkResolver::check_method_accessability for the matching logic.
763 resolved = recv_klass;
764 }
765
766 LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
767 Method* m = NULL;
768 // Only do exact lookup if receiver klass has been linked. Otherwise,
769 // the vtable has not been setup, and the LinkResolver will fail.
770 if (recv_klass->is_array_klass() ||
771 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
772 if (resolved->is_interface()) {
773 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
774 } else {
775 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
776 }
777 }
778
779 if (m == NULL) {
780 // Return NULL if there was a problem with lookup (uninitialized class, etc.)
781 return NULL;
782 }
783
784 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL);
785 return JVMCIENV->get_jobject(result);
786 C2V_END
787
788 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type))
789 Klass* klass = JVMCIENV->asKlass(jvmci_type);
790 assert(klass != NULL, "method must not be called for primitive types");
791 return Dependencies::find_finalizable_subclass(klass) != NULL;
792 C2V_END
793
794 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type))
795 Klass* klass = JVMCIENV->asKlass(jvmci_type);
796 if (!klass->is_instance_klass()) {
797 return NULL;
798 }
799 InstanceKlass* iklass = InstanceKlass::cast(klass);
800 methodHandle clinit(THREAD, iklass->class_initializer());
801 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL);
802 return JVMCIENV->get_jobject(result);
803 C2V_END
804
805 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
806 address target_addr = (address) addr;
807 if (target_addr != 0x0) {
808 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
809 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
810 return MAX2(ABS(off_low), ABS(off_high));
811 }
812 return -1;
813 C2V_END
814
815 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
816 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
817 method->set_not_c1_compilable();
818 method->set_not_c2_compilable();
819 method->set_dont_inline(true);
820 C2V_END
821
822 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code,
823 jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj))
824 HandleMark hm;
825 JNIHandleMark jni_hm(thread);
826
827 JVMCIObject target_handle = JVMCIENV->wrap(target);
828 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
829 CodeBlob* cb = NULL;
830 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
831 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
832
833 int speculations_len = JVMCIENV->get_length(speculations_handle);
834 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
835 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
836
992 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
993 stringStream st(buffer, bufferSize);
994 if (cb->is_nmethod()) {
995 nmethod* nm = (nmethod*) cb;
996 if (!nm->is_alive()) {
997 return NULL;
998 }
999 }
1000 Disassembler::decode(cb, &st);
1001 if (st.size() <= 0) {
1002 return NULL;
1003 }
1004
1005 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1006 return JVMCIENV->get_jobject(result);
1007 C2V_END
1008
1009 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci))
1010 HandleMark hm;
1011
1012 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1013 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1014 return JVMCIENV->get_jobject(element);
1015 C2V_END
1016
1017 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1018 // The incoming arguments array would have to contain JavaConstants instead of regular objects
1019 // and the return value would have to be wrapped as a JavaConstant.
1020 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1021
1022 HandleMark hm;
1023
1024 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1025 nmethod* nm = JVMCIENV->asNmethod(nmethod_mirror);
1026 if (nm == NULL) {
1027 JVMCI_THROW_NULL(InvalidInstalledCodeException);
1028 }
1029 methodHandle mh(THREAD, nm->method());
1030 Symbol* signature = mh->signature();
1031 JavaCallArguments jca(mh->size_of_parameters());
1032
1033 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1034 JavaValue result(jap.get_ret_type());
1035 jca.set_alternative_target(nm);
1036 JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1037
1038 if (jap.get_ret_type() == T_VOID) {
1039 return NULL;
1040 } else if (is_reference_type(jap.get_ret_type())) {
1041 return JNIHandles::make_local((oop) result.get_jobject());
1042 } else {
1043 jvalue *value = (jvalue *) result.get_value_addr();
1044 // Narrow the value down if required (Important on big endian machines)
1045 switch (jap.get_ret_type()) {
1046 case T_BOOLEAN:
1047 value->z = (jboolean) value->i;
1048 break;
1049 case T_BYTE:
1087 i += 2;
1088 }
1089
1090 return (jlongArray) JVMCIENV->get_jobject(result);
1091 C2V_END
1092
1093 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
1094 Method* method = JVMCIENV->asMethod(jvmci_method);
1095 if (!method->has_localvariable_table()) {
1096 return 0;
1097 }
1098 return (jlong) (address) method->localvariable_table_start();
1099 C2V_END
1100
1101 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
1102 Method* method = JVMCIENV->asMethod(jvmci_method);
1103 return method->localvariable_table_length();
1104 C2V_END
1105
1106 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method))
1107 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1108 MethodCounters* mcs = method->method_counters();
1109 if (mcs != NULL) {
1110 mcs->clear_counters();
1111 }
1112 NOT_PRODUCT(method->set_compiled_invocation_count(0));
1113
1114 CompiledMethod* code = method->code();
1115 if (code != NULL) {
1116 code->make_not_entrant();
1117 }
1118
1119 MethodData* method_data = method->method_data();
1120 if (method_data == NULL) {
1121 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1122 method_data = MethodData::allocate(loader_data, method, CHECK);
1123 method->set_method_data(method_data);
1124 } else {
1125 method_data->initialize();
1126 }
1127 C2V_END
1144 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1145 JavaThread::collect_counters(temp_array, JVMCICounterSize);
1146 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1147 }
1148 return (jlongArray) JVMCIENV->get_jobject(array);
1149 C2V_END
1150
1151 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1152 return (jint) JVMCICounterSize;
1153 C2V_END
1154
1155 C2V_VMENTRY(void, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1156 JavaThread::resize_all_jvmci_counters(new_size);
1157 C2V_END
1158
1159 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci))
1160 HandleMark hm;
1161 if (jvmci_method == NULL) {
1162 JVMCI_THROW_0(NullPointerException);
1163 }
1164 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
1165 if (entry_bci >= method->code_size() || entry_bci < -1) {
1166 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1167 }
1168 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1169 C2V_END
1170
1171
1172 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data))
1173 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1174 return mdo != NULL && mdo->is_mature();
1175 C2V_END
1176
1177 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1178 Method* method = JVMCIENV->asMethod(jvmci_method);
1179 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1180 C2V_END
1181
1182 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1183 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1184 return JVMCIENV->get_jobject(sym);
1186
1187 bool matches(jobjectArray methods, Method* method, JVMCIEnv* JVMCIENV) {
1188 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1189
1190 for (int i = 0; i < methods_oop->length(); i++) {
1191 oop resolved = methods_oop->obj_at(i);
1192 if ((resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) && HotSpotJVMCI::asMethod(JVMCIENV, resolved) == method) {
1193 return true;
1194 }
1195 }
1196 return false;
1197 }
1198
1199 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1200 CallInfo callinfo;
1201 Handle receiver = args->receiver();
1202 Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
1203 LinkInfo link_info(spec_klass, name, signature);
1204 LinkResolver::resolve_interface_call(
1205 callinfo, receiver, recvrKlass, link_info, true, CHECK);
1206 methodHandle method(THREAD, callinfo.selected_method());
1207 assert(method.not_null(), "should have thrown exception");
1208
1209 // Invoke the method
1210 JavaCalls::call(result, method, args, CHECK);
1211 }
1212
1213 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1214
1215 if (!thread->has_last_Java_frame()) {
1216 return NULL;
1217 }
1218 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1219
1220 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1221
1222 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1223 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1224
1225 StackFrameStream fst(thread);
1226 jobjectArray methods = initial_methods;
1260 Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false);
1261 realloc_called = true;
1262
1263 GrowableArray<ScopeValue*>* local_values = scope->locals();
1264 assert(local_values != NULL, "NULL locals");
1265 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1266 typeArrayHandle array(THREAD, array_oop);
1267 for (int i = 0; i < local_values->length(); i++) {
1268 ScopeValue* value = local_values->at(i);
1269 if (value->is_object()) {
1270 array->bool_at_put(i, true);
1271 }
1272 }
1273 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), array());
1274 } else {
1275 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1276 }
1277
1278 locals = cvf->locals();
1279 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), cvf->bci());
1280 methodHandle mh(THREAD, cvf->method());
1281 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1282 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1283 }
1284 }
1285 } else if (vf->is_interpreted_frame()) {
1286 // interpreted method frame
1287 interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1288 if (methods == NULL || matches(methods, ivf->method(), JVMCIENV)) {
1289 if (initialSkip > 0) {
1290 initialSkip--;
1291 } else {
1292 locals = ivf->locals();
1293 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), ivf->bci());
1294 methodHandle mh(THREAD, ivf->method());
1295 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1296 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1297 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1298 }
1299 }
1300 }
1301
1302 // locals != NULL means that we found a matching frame and result is already partially initialized
1303 if (locals != NULL) {
1304 methods = match_methods;
1305 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1306 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) fst.current()->sp());
1307 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1308
1309 // initialize the locals array
1310 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1311 objArrayHandle array(THREAD, array_oop);
1312 for (int i = 0; i < locals->size(); i++) {
1313 StackValue* var = locals->at(i);
1314 if (var->type() == T_OBJECT) {
1315 array->obj_at_put(i, locals->at(i)->get_obj()());
1355 if (vf->is_top()) {
1356 break;
1357 }
1358 frame_number++;
1359 vf = vf->sender();
1360 } // end of vframe loop
1361
1362 if (fst.is_done()) {
1363 break;
1364 }
1365 fst.next();
1366 vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1367 frame_number = 0;
1368 } // end of frame loop
1369
1370 // the end was reached without finding a matching method
1371 return NULL;
1372 C2V_END
1373
1374 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1375 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1376 CallInfo callInfo;
1377 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1378 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1379 cp_cache_entry->set_dynamic_call(cp, callInfo);
1380 C2V_END
1381
1382 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1383 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1384 Klass* holder = cp->klass_ref_at(index, CHECK);
1385 Symbol* name = cp->name_ref_at(index);
1386 if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1387 CallInfo callInfo;
1388 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1389 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1390 cp_cache_entry->set_method_handle(cp, callInfo);
1391 }
1392 C2V_END
1393
1394 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1395 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool));
1396 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1397 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1398 // MethodHandle.invoke* --> LambdaForm?
1399 ResourceMark rm;
1400
1401 LinkInfo link_info(cp, index, CATCH);
1402
1403 Klass* resolved_klass = link_info.resolved_klass();
1404
1405 Symbol* name_sym = cp->name_ref_at(index);
1406
1407 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1408 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1409
1410 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method());
1411
1412 methodHandle resolved_method(adapter_method);
1413
1414 // Can we treat it as a regular invokevirtual?
1415 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1416 vmassert(!resolved_method->is_static(),"!");
1417 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1418 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1419 vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1420
1421 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1422 vmassert(m == resolved_method, "!!");
1423 return -1;
1424 }
1425
1426 return Bytecodes::_invokevirtual;
1427 }
1428 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1429 return Bytecodes::_invokedynamic;
1430 }
1431 return -1;
1432 C2V_END
1433
1434
1435 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1436 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1437 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1438 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1439 JVMCIENV->put_object_at(holders, 0, mh);
1440 JVMCIENV->put_object_at(holders, 1, vh);
1441 return JVMCIENV->get_jobject(holders);
1894 }
1895 Klass* klass = JVMCIENV->asKlass(holder);
1896 if (!klass->is_instance_klass()) {
1897 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1898 return JVMCIENV->get_jobjectArray(methods);
1899 }
1900
1901 InstanceKlass* iklass = InstanceKlass::cast(klass);
1902 // Ensure class is linked
1903 iklass->link_class(CHECK_NULL);
1904
1905 GrowableArray<Method*> constructors_array;
1906 for (int i = 0; i < iklass->methods()->length(); i++) {
1907 Method* m = iklass->methods()->at(i);
1908 if (m->is_initializer() && !m->is_static()) {
1909 constructors_array.append(m);
1910 }
1911 }
1912 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1913 for (int i = 0; i < constructors_array.length(); i++) {
1914 methodHandle ctor(THREAD, constructors_array.at(i));
1915 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
1916 JVMCIENV->put_object_at(methods, i, method);
1917 }
1918 return JVMCIENV->get_jobjectArray(methods);
1919 C2V_END
1920
1921 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder))
1922 if (holder == NULL) {
1923 JVMCI_THROW_0(NullPointerException);
1924 }
1925 Klass* klass = JVMCIENV->asKlass(holder);
1926 if (!klass->is_instance_klass()) {
1927 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1928 return JVMCIENV->get_jobjectArray(methods);
1929 }
1930
1931 InstanceKlass* iklass = InstanceKlass::cast(klass);
1932 // Ensure class is linked
1933 iklass->link_class(CHECK_NULL);
1934
1935 GrowableArray<Method*> methods_array;
1936 for (int i = 0; i < iklass->methods()->length(); i++) {
1937 Method* m = iklass->methods()->at(i);
1938 if (!m->is_initializer() && !m->is_overpass()) {
1939 methods_array.append(m);
1940 }
1941 }
1942 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1943 for (int i = 0; i < methods_array.length(); i++) {
1944 methodHandle mh(THREAD, methods_array.at(i));
1945 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
1946 JVMCIENV->put_object_at(methods, i, method);
1947 }
1948 return JVMCIENV->get_jobjectArray(methods);
1949 C2V_END
1950
1951 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject field, jboolean is_volatile))
1952 if (object == NULL || field == NULL) {
1953 JVMCI_THROW_0(NullPointerException);
1954 }
1955 JVMCIObject field_object = JVMCIENV->wrap(field);
1956 JVMCIObject java_type = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_type(field_object);
1957 int modifiers = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_modifiers(field_object);
1958 Klass* holder = JVMCIENV->asKlass(JVMCIENV->get_HotSpotResolvedJavaFieldImpl_holder(field_object));
1959 if (!holder->is_instance_klass()) {
1960 JVMCI_THROW_MSG_0(InternalError, err_msg("Holder %s must be instance klass", holder->external_name()));
1961 }
1962 InstanceKlass* ik = InstanceKlass::cast(holder);
1963 BasicType constant_type;
1964 if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(java_type)) {
1965 constant_type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(java_type), JVMCI_CHECK_NULL);
2246 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerEnv);
2247 if (peerEnv->has_pending_exception()) {
2248 peerEnv->describe_pending_exception(true);
2249 }
2250 shared_library = JVMCIEnv::get_shared_library_handle();
2251 if (shared_library == NULL) {
2252 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2253 }
2254 }
2255
2256 if (mirror == NULL) {
2257 JVMCI_THROW_0(NullPointerException);
2258 }
2259 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2260 if (klass == NULL || !klass->is_instance_klass()) {
2261 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2262 }
2263
2264 InstanceKlass* iklass = InstanceKlass::cast(klass);
2265 for (int i = 0; i < iklass->methods()->length(); i++) {
2266 methodHandle method(THREAD, iklass->methods()->at(i));
2267 if (method->is_native()) {
2268
2269 // Compute argument size
2270 int args_size = 1 // JNIEnv
2271 + (method->is_static() ? 1 : 0) // class for static methods
2272 + method->size_of_parameters(); // actual parameters
2273
2274 // 1) Try JNI short style
2275 stringStream st;
2276 char* pure_name = NativeLookup::pure_jni_name(method);
2277 os::print_jni_name_prefix_on(&st, args_size);
2278 st.print_raw(pure_name);
2279 os::print_jni_name_suffix_on(&st, args_size);
2280 char* jni_name = st.as_string();
2281
2282 address entry = (address) os::dll_lookup(shared_library, jni_name);
2283 if (entry == NULL) {
2284 // 2) Try JNI long style
2285 st.reset();
2286 char* long_name = NativeLookup::long_jni_name(method);
2414 extern struct JavaVM_ main_vm;
2415 jint res = main_vm.DetachCurrentThread();
2416 if (res != JNI_OK) {
2417 JNI_THROW("detachCurrentThread", InternalError, err_msg("Cannot detach non-attached thread"));
2418 }
2419 }
2420 C2V_END
2421
2422 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
2423 requireJVMCINativeLibrary(JVMCI_CHECK_0);
2424 if (obj_handle == NULL) {
2425 return 0L;
2426 }
2427 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2428 JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2429 JVMCIEnv* thisEnv = JVMCIENV;
2430
2431 JVMCIObject obj = thisEnv->wrap(obj_handle);
2432 JVMCIObject result;
2433 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2434 methodHandle method(THREAD, thisEnv->asMethod(obj));
2435 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2436 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2437 Klass* klass = thisEnv->asKlass(obj);
2438 JVMCIKlassHandle klass_handle(THREAD);
2439 klass_handle = klass;
2440 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2441 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2442 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2443 result = peerEnv->get_jvmci_primitive_type(type);
2444 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2445 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2446 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2447 result = peerEnv->get_object_constant(constant());
2448 } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2449 nmethod* nm = thisEnv->asNmethod(obj);
2450 if (nm != NULL) {
2451 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2452 if (data != NULL) {
2453 if (peerEnv->is_hotspot()) {
2454 // Only the mirror in the HotSpot heap is accessible
2455 // through JVMCINMethodData
2456 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2457 if (nmethod_mirror != NULL) {
2458 result = HotSpotJVMCI::wrap(nmethod_mirror);
2459 }
2460 }
2461 }
2462 }
2463 if (result.is_null()) {
2464 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2465 methodHandle mh(THREAD, thisEnv->asMethod(methodObject));
2466 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2467 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2468 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2469 const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string);
2470 // Create a new HotSpotNmethod instance in the peer runtime
2471 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2472 if (nm == NULL) {
2473 // nmethod must have been unloaded
2474 } else {
2475 // Link the new HotSpotNmethod to the nmethod
2476 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2477 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2478 if (peerEnv->is_hotspot()) {
2479 JVMCINMethodData* data = nm->jvmci_nmethod_data();
2480 if (data == NULL) {
2481 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2482 }
2483 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) {
2484 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2485 }
2486 oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2487 data->set_nmethod_mirror(nm, nmethod_mirror);
2488 }
2489 }
2490 }
2491 } else {
2511 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2512 JVMCIObject code = JVMCIENV->wrap(code_handle);
2513 // Execute this operation for the side effect of updating the InstalledCode state
2514 JVMCIENV->asNmethod(code);
2515 }
2516
2517 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2518 JVMCIObject code = JVMCIENV->wrap(code_handle);
2519 CodeBlob* cb = JVMCIENV->asCodeBlob(code);
2520 if (cb == NULL) {
2521 return NULL;
2522 }
2523 int code_size = cb->code_size();
2524 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2525 JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size);
2526 return JVMCIENV->get_jbyteArray(result);
2527 }
2528
2529 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method))
2530 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2531 methodHandle m(THREAD, JVMCIENV->asMethod(jvmci_method));
2532 oop executable;
2533 if (m->is_initializer()) {
2534 if (m->is_static_initializer()) {
2535 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2536 "Cannot create java.lang.reflect.Method for class initializer");
2537 }
2538 executable = Reflection::new_constructor(m, CHECK_NULL);
2539 } else {
2540 executable = Reflection::new_method(m, false, CHECK_NULL);
2541 }
2542 return JNIHandles::make_local(THREAD, executable);
2543 }
2544
2545 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index))
2546 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2547 Klass* klass = JVMCIENV->asKlass(jvmci_type);
2548 if (!klass->is_instance_klass()) {
2549 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2550 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2551 }
2576 return current;
2577 }
2578 }
2579 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2580 int result_index = 0;
2581 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2582 assert(fs != NULL, "npe");
2583 JVMCIPrimitiveArray entry;
2584 if (result_index < current_length) {
2585 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2586 } else {
2587 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2588 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2589 }
2590 JVMCIENV->put_object_at(result, result_index++, entry);
2591 }
2592 return JVMCIENV->get_jobjectArray(result);
2593 }
2594
2595 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method))
2596 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method));
2597 MethodData* method_data = method->method_data();
2598 if (method_data == NULL) {
2599 ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2600 method_data = MethodData::allocate(loader_data, method, CHECK_0);
2601 method->set_method_data(method_data);
2602 }
2603 return (jlong) method_data->get_failed_speculations_address();
2604 }
2605
2606 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2607 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2608 }
2609
2610 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2611 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2612 int speculation_len = JVMCIENV->get_length(speculation_handle);
2613 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2614 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2615 return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2616 }
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