115 JavaCallArguments* jca,
116 arrayOop args,
117 bool is_static)
118 : SignatureIterator(signature)
119 {
120 this->_return_type = T_ILLEGAL;
121 _jca = jca;
122 _index = 0;
123 _args = args;
124 if (!is_static) {
125 _jca->push_oop(next_arg(T_OBJECT));
126 }
127 do_parameters_on(this);
128 assert(_index == args->length(), "arg count mismatch with signature");
129 }
130
131 private:
132 friend class SignatureIterator; // so do_parameters_on can call do_type
133 void do_type(BasicType type) {
134 if (is_reference_type(type)) {
135 _jca->push_oop(next_arg(T_OBJECT));
136 return;
137 }
138 Handle arg = next_arg(type);
139 int box_offset = java_lang_boxing_object::value_offset(type);
140 switch (type) {
141 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
142 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
143 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
144 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
145 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
146 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
147 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
148 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
149 default: ShouldNotReachHere();
150 }
151 }
152 };
153
154 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
155 assert(_index < _args->length(), "out of bounds");
1474 if (vf->is_compiled_frame()) {
1475 // compiled method frame
1476 compiledVFrame* cvf = compiledVFrame::cast(vf);
1477
1478 ScopeDesc* scope = cvf->scope();
1479 // native wrappers do not have a scope
1480 if (scope != nullptr && scope->objects() != nullptr) {
1481 prev_cvf = cvf;
1482
1483 GrowableArray<ScopeValue*>* objects = nullptr;
1484 if (!realloc_called) {
1485 objects = scope->objects();
1486 } else {
1487 // some object might already have been re-allocated, only reallocate the non-allocated ones
1488 objects = get_unallocated_objects_or_null(scope->objects());
1489 }
1490
1491 if (objects != nullptr) {
1492 RegisterMap reg_map(vf->register_map());
1493 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1494 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false);
1495 realloc_called = true;
1496 }
1497
1498 GrowableArray<ScopeValue*>* local_values = scope->locals();
1499 for (int i = 0; i < local_values->length(); i++) {
1500 ScopeValue* value = local_values->at(i);
1501 if (value->is_object()) {
1502 if (localIsVirtual_h.is_null()) {
1503 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1504 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1505 }
1506 localIsVirtual_h->bool_at_put(i, true);
1507 }
1508 }
1509 }
1510
1511 locals = cvf->locals();
1512 frame_number = cvf->vframe_id();
1513 } else {
1514 // interpreted method frame
1713 break;
1714 }
1715 vf = vf->sender();
1716 }
1717
1718 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1719 if (last_frame_number >= virtualFrames->length()) {
1720 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1721 }
1722
1723 // Reallocate the non-escaping objects and restore their fields.
1724 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1725 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1726
1727 if (objects == nullptr) {
1728 // no objects to materialize
1729 return;
1730 }
1731
1732 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1733 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1734
1735 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1736 compiledVFrame* cvf = virtualFrames->at(frame_index);
1737
1738 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1739 StackValueCollection* locals = cvf->locals();
1740 if (locals != nullptr) {
1741 for (int i2 = 0; i2 < locals->size(); i2++) {
1742 StackValue* var = locals->at(i2);
1743 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1744 jvalue val;
1745 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1746 cvf->update_local(T_OBJECT, i2, val);
1747 }
1748 }
1749 }
1750
1751 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1752 StackValueCollection* expressions = cvf->expressions();
1753 if (expressions != nullptr) {
2035 box_signature, &jargs, CHECK_NULL);
2036 oop hotspot_box = box_result.get_oop();
2037 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
2038 return JVMCIENV->get_jobject(result);
2039 C2V_END
2040
2041 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2042 Klass* klass = UNPACK_PAIR(Klass, klass);
2043 if (klass == nullptr) {
2044 JVMCI_THROW_0(NullPointerException);
2045 }
2046 if (!klass->is_instance_klass()) {
2047 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2048 return JVMCIENV->get_jobjectArray(methods);
2049 }
2050
2051 InstanceKlass* iklass = InstanceKlass::cast(klass);
2052 GrowableArray<Method*> constructors_array;
2053 for (int i = 0; i < iklass->methods()->length(); i++) {
2054 Method* m = iklass->methods()->at(i);
2055 if (m->is_initializer() && !m->is_static()) {
2056 constructors_array.append(m);
2057 }
2058 }
2059 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
2060 for (int i = 0; i < constructors_array.length(); i++) {
2061 methodHandle ctor(THREAD, constructors_array.at(i));
2062 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
2063 JVMCIENV->put_object_at(methods, i, method);
2064 }
2065 return JVMCIENV->get_jobjectArray(methods);
2066 C2V_END
2067
2068 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2069 Klass* klass = UNPACK_PAIR(Klass, klass);
2070 if (klass == nullptr) {
2071 JVMCI_THROW_0(NullPointerException);
2072 }
2073 if (!klass->is_instance_klass()) {
2074 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2075 return JVMCIENV->get_jobjectArray(methods);
2076 }
2077
2078 InstanceKlass* iklass = InstanceKlass::cast(klass);
2079 GrowableArray<Method*> methods_array;
2080 for (int i = 0; i < iklass->methods()->length(); i++) {
2081 Method* m = iklass->methods()->at(i);
2082 if (!m->is_initializer() && !m->is_overpass()) {
2083 methods_array.append(m);
2084 }
2085 }
2086 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
2087 for (int i = 0; i < methods_array.length(); i++) {
2088 methodHandle mh(THREAD, methods_array.at(i));
2089 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
2090 JVMCIENV->put_object_at(methods, i, method);
2091 }
2092 return JVMCIENV->get_jobjectArray(methods);
2093 C2V_END
2094
2095 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2096 Klass* klass = UNPACK_PAIR(Klass, klass);
2097 if (klass == nullptr) {
2098 JVMCI_THROW_0(NullPointerException);
2099 }
2100 if (!klass->is_instance_klass()) {
2101 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass");
2102 }
2775 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2776 JVMCIObject code = JVMCIENV->wrap(code_handle);
2777 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2778 if (cb == nullptr) {
2779 return nullptr;
2780 }
2781 // Make a resource copy of code before the allocation causes a safepoint
2782 int code_size = cb->code_size();
2783 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2784 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2785
2786 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2787 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2788 return JVMCIENV->get_jbyteArray(result);
2789 }
2790
2791 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2792 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2793 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2794 oop executable;
2795 if (m->is_initializer()) {
2796 if (m->is_static_initializer()) {
2797 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2798 "Cannot create java.lang.reflect.Method for class initializer");
2799 }
2800 executable = Reflection::new_constructor(m, CHECK_NULL);
2801 } else {
2802 executable = Reflection::new_method(m, false, CHECK_NULL);
2803 }
2804 return JNIHandles::make_local(THREAD, executable);
2805 }
2806
2807 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2808 if (!klass->is_instance_klass()) {
2809 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2810 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2811 }
2812 InstanceKlass* iklass = InstanceKlass::cast(klass);
2813 if (index < 0 || index > iklass->total_fields_count()) {
2814 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2815 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2816 }
2817 return iklass;
2818 }
2819
|
115 JavaCallArguments* jca,
116 arrayOop args,
117 bool is_static)
118 : SignatureIterator(signature)
119 {
120 this->_return_type = T_ILLEGAL;
121 _jca = jca;
122 _index = 0;
123 _args = args;
124 if (!is_static) {
125 _jca->push_oop(next_arg(T_OBJECT));
126 }
127 do_parameters_on(this);
128 assert(_index == args->length(), "arg count mismatch with signature");
129 }
130
131 private:
132 friend class SignatureIterator; // so do_parameters_on can call do_type
133 void do_type(BasicType type) {
134 if (is_reference_type(type)) {
135 (type == T_PRIMITIVE_OBJECT) ? _jca->push_oop(next_arg(T_PRIMITIVE_OBJECT)) : _jca->push_oop(next_arg(T_OBJECT));
136 return;
137 }
138 Handle arg = next_arg(type);
139 int box_offset = java_lang_boxing_object::value_offset(type);
140 switch (type) {
141 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break;
142 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break;
143 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break;
144 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break;
145 case T_INT: _jca->push_int(arg->int_field(box_offset)); break;
146 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break;
147 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break;
148 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break;
149 default: ShouldNotReachHere();
150 }
151 }
152 };
153
154 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
155 assert(_index < _args->length(), "out of bounds");
1474 if (vf->is_compiled_frame()) {
1475 // compiled method frame
1476 compiledVFrame* cvf = compiledVFrame::cast(vf);
1477
1478 ScopeDesc* scope = cvf->scope();
1479 // native wrappers do not have a scope
1480 if (scope != nullptr && scope->objects() != nullptr) {
1481 prev_cvf = cvf;
1482
1483 GrowableArray<ScopeValue*>* objects = nullptr;
1484 if (!realloc_called) {
1485 objects = scope->objects();
1486 } else {
1487 // some object might already have been re-allocated, only reallocate the non-allocated ones
1488 objects = get_unallocated_objects_or_null(scope->objects());
1489 }
1490
1491 if (objects != nullptr) {
1492 RegisterMap reg_map(vf->register_map());
1493 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL);
1494 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false, CHECK_NULL);
1495 realloc_called = true;
1496 }
1497
1498 GrowableArray<ScopeValue*>* local_values = scope->locals();
1499 for (int i = 0; i < local_values->length(); i++) {
1500 ScopeValue* value = local_values->at(i);
1501 if (value->is_object()) {
1502 if (localIsVirtual_h.is_null()) {
1503 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1504 localIsVirtual_h = typeArrayHandle(THREAD, array_oop);
1505 }
1506 localIsVirtual_h->bool_at_put(i, true);
1507 }
1508 }
1509 }
1510
1511 locals = cvf->locals();
1512 frame_number = cvf->vframe_id();
1513 } else {
1514 // interpreted method frame
1713 break;
1714 }
1715 vf = vf->sender();
1716 }
1717
1718 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1719 if (last_frame_number >= virtualFrames->length()) {
1720 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1721 }
1722
1723 // Reallocate the non-escaping objects and restore their fields.
1724 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope");
1725 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1726
1727 if (objects == nullptr) {
1728 // no objects to materialize
1729 return;
1730 }
1731
1732 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1733 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false, THREAD);
1734
1735 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1736 compiledVFrame* cvf = virtualFrames->at(frame_index);
1737
1738 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals();
1739 StackValueCollection* locals = cvf->locals();
1740 if (locals != nullptr) {
1741 for (int i2 = 0; i2 < locals->size(); i2++) {
1742 StackValue* var = locals->at(i2);
1743 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) {
1744 jvalue val;
1745 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()());
1746 cvf->update_local(T_OBJECT, i2, val);
1747 }
1748 }
1749 }
1750
1751 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1752 StackValueCollection* expressions = cvf->expressions();
1753 if (expressions != nullptr) {
2035 box_signature, &jargs, CHECK_NULL);
2036 oop hotspot_box = box_result.get_oop();
2037 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
2038 return JVMCIENV->get_jobject(result);
2039 C2V_END
2040
2041 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2042 Klass* klass = UNPACK_PAIR(Klass, klass);
2043 if (klass == nullptr) {
2044 JVMCI_THROW_0(NullPointerException);
2045 }
2046 if (!klass->is_instance_klass()) {
2047 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2048 return JVMCIENV->get_jobjectArray(methods);
2049 }
2050
2051 InstanceKlass* iklass = InstanceKlass::cast(klass);
2052 GrowableArray<Method*> constructors_array;
2053 for (int i = 0; i < iklass->methods()->length(); i++) {
2054 Method* m = iklass->methods()->at(i);
2055 if (m->is_object_constructor()) {
2056 constructors_array.append(m);
2057 }
2058 }
2059 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
2060 for (int i = 0; i < constructors_array.length(); i++) {
2061 methodHandle ctor(THREAD, constructors_array.at(i));
2062 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL);
2063 JVMCIENV->put_object_at(methods, i, method);
2064 }
2065 return JVMCIENV->get_jobjectArray(methods);
2066 C2V_END
2067
2068 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2069 Klass* klass = UNPACK_PAIR(Klass, klass);
2070 if (klass == nullptr) {
2071 JVMCI_THROW_0(NullPointerException);
2072 }
2073 if (!klass->is_instance_klass()) {
2074 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
2075 return JVMCIENV->get_jobjectArray(methods);
2076 }
2077
2078 InstanceKlass* iklass = InstanceKlass::cast(klass);
2079 GrowableArray<Method*> methods_array;
2080 for (int i = 0; i < iklass->methods()->length(); i++) {
2081 Method* m = iklass->methods()->at(i);
2082 if (!(m->is_object_constructor() || m->is_class_initializer()) && !m->is_overpass()) {
2083 methods_array.append(m);
2084 }
2085 }
2086 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
2087 for (int i = 0; i < methods_array.length(); i++) {
2088 methodHandle mh(THREAD, methods_array.at(i));
2089 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL);
2090 JVMCIENV->put_object_at(methods, i, method);
2091 }
2092 return JVMCIENV->get_jobjectArray(methods);
2093 C2V_END
2094
2095 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass)))
2096 Klass* klass = UNPACK_PAIR(Klass, klass);
2097 if (klass == nullptr) {
2098 JVMCI_THROW_0(NullPointerException);
2099 }
2100 if (!klass->is_instance_klass()) {
2101 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass");
2102 }
2775 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2776 JVMCIObject code = JVMCIENV->wrap(code_handle);
2777 CodeBlob* cb = JVMCIENV->get_code_blob(code);
2778 if (cb == nullptr) {
2779 return nullptr;
2780 }
2781 // Make a resource copy of code before the allocation causes a safepoint
2782 int code_size = cb->code_size();
2783 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size);
2784 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size);
2785
2786 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2787 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size);
2788 return JVMCIENV->get_jbyteArray(result);
2789 }
2790
2791 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method)))
2792 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2793 methodHandle m(THREAD, UNPACK_PAIR(Method, method));
2794 oop executable;
2795 if (m->is_class_initializer()) {
2796 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2797 "Cannot create java.lang.reflect.Method for class initializer");
2798 }
2799 else if (m->is_object_constructor() || m->is_static_vnew_factory()) {
2800 executable = Reflection::new_constructor(m, CHECK_NULL);
2801 } else {
2802 executable = Reflection::new_method(m, false, CHECK_NULL);
2803 }
2804 return JNIHandles::make_local(THREAD, executable);
2805 }
2806
2807 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) {
2808 if (!klass->is_instance_klass()) {
2809 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2810 err_msg("Expected non-primitive type, got %s", klass->external_name()));
2811 }
2812 InstanceKlass* iklass = InstanceKlass::cast(klass);
2813 if (index < 0 || index > iklass->total_fields_count()) {
2814 JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2815 err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2816 }
2817 return iklass;
2818 }
2819
|