klassOop typeArrayKlassKlass::create_klass(TRAPS) {
typeArrayKlassKlass o;
KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_0);
assert(k()->size() == align_object_size(header_size()), "wrong size for object");
java_lang_Class::create_mirror(k, CHECK_0); // Allocate mirror
return k();
}
klassOop arrayKlassKlass::create_klass(TRAPS) {
arrayKlassKlass o;
KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL);
// Make sure size calculation is right
assert(k()->size() == align_object_size(header_size()), "wrong size for object");
java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror, make links
return k();
}
klassOop methodDataKlass::create_klass(TRAPS) {
methodDataKlass o;
KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
KlassHandle k = base_create_klass(h_this_klass, header_size(),
o.vtbl_value(), CHECK_0);
// Make sure size calculation is right
assert(k()->size() == align_object_size(header_size()),
"wrong size for object");
return k();
}
klassOop instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_len, int static_field_size,
int nonstatic_oop_map_size, ReferenceType rt, TRAPS) {
int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + static_field_size + nonstatic_oop_map_size);
// Allocation
KlassHandle h_this_klass(THREAD, as_klassOop());
KlassHandle k;
if (rt == REF_NONE) {
// regular klass
instanceKlass o;
k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_0);
} else {
// reference klass
instanceRefKlass o;
k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_0);
}
instanceKlass* ik = (instanceKlass*) k()->klass_part();
assert(!k()->is_parsable(), "not expecting parsability yet.");
// The sizes of these these three variables are used for determining the
// size of the instanceKlassOop. It is critical that these are set to the right
// sizes before the first GC, i.e., when we allocate the mirror.
ik->set_vtable_length(vtable_len);
ik->set_itable_length(itable_len);
ik->set_static_field_size(static_field_size);
ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size);
assert(k()->size() == size, "wrong size for object");
ik->set_array_klasses(NULL);
ik->set_methods(NULL);
ik->set_method_ordering(NULL);
ik->set_local_interfaces(NULL);
ik->set_transitive_interfaces(NULL);
ik->init_implementor();
ik->set_fields(NULL);
ik->set_constants(NULL);
ik->set_class_loader(NULL);
ik->set_protection_domain(NULL);
ik->set_signers(NULL);
ik->set_source_file_name(NULL);
ik->set_source_debug_extension(NULL);
ik->set_inner_classes(NULL);
ik->set_static_oop_field_size(0);
ik->set_nonstatic_field_size(0);
ik->set_is_marked_dependent(false);
ik->set_init_state(instanceKlass::allocated);
ik->set_init_thread(NULL);
ik->set_reference_type(rt);
ik->set_oop_map_cache(NULL);
ik->set_jni_ids(NULL);
ik->set_osr_nmethods_head(NULL);
ik->set_breakpoints(NULL);
ik->init_previous_version();
// initialize the non-header words to zero
intptr_t* p = (intptr_t*)k();
for (int index = instanceKlass::header_size(); index < size; index++) {
p[index] = NULL;
}
// To get verify to work - must be set to partial loaded before first GC point.
NOT_PRODUCT(k()->set_partially_loaded());
assert(k()->is_parsable(), "should be parsable here.");
// GC can happen here
java_lang_Class::create_mirror(k, CHECK_0); // Allocate mirror
return k();
}
klassOop
instanceKlassKlass::allocate_instance_klass(Symbol* name, int vtable_len, int itable_len,
int static_field_size,
unsigned nonstatic_oop_map_count,
AccessFlags access_flags,
ReferenceType rt,
KlassHandle host_klass, TRAPS) {
const int nonstatic_oop_map_size =
instanceKlass::nonstatic_oop_map_size(nonstatic_oop_map_count);
int size = align_object_offset(vtable_len) + align_object_offset(itable_len);
if (access_flags.is_interface() || !host_klass.is_null()) {
size += align_object_offset(nonstatic_oop_map_size);
} else {
size += nonstatic_oop_map_size;
}
if (access_flags.is_interface()) {
size += (int)sizeof(klassOop)/HeapWordSize;
}
if (!host_klass.is_null()) {
size += (int)sizeof(klassOop)/HeapWordSize;
}
size = instanceKlass::object_size(size);
// Allocation
KlassHandle h_this_klass(THREAD, as_klassOop());
KlassHandle k;
if (rt == REF_NONE) {
if (name != vmSymbols::java_lang_Class()) {
// regular klass
instanceKlass o;
k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
} else {
// Class
instanceMirrorKlass o;
k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
}
} else {
// reference klass
instanceRefKlass o;
k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
}
{
No_Safepoint_Verifier no_safepoint; // until k becomes parsable
instanceKlass* ik = (instanceKlass*) k()->klass_part();
assert(!k()->is_parsable(), "not expecting parsability yet.");
// The sizes of these these three variables are used for determining the
// size of the instanceKlassOop. It is critical that these are set to the right
// sizes before the first GC, i.e., when we allocate the mirror.
ik->set_vtable_length(vtable_len);
ik->set_itable_length(itable_len);
ik->set_static_field_size(static_field_size);
ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size);
ik->set_access_flags(access_flags);
ik->set_is_anonymous(!host_klass.is_null());
assert(k()->size() == size, "wrong size for object");
ik->set_array_klasses(NULL);
ik->set_methods(NULL);
ik->set_method_ordering(NULL);
ik->set_local_interfaces(NULL);
ik->set_transitive_interfaces(NULL);
ik->init_implementor();
ik->set_fields(NULL, 0);
ik->set_constants(NULL);
ik->set_class_loader(NULL);
ik->set_protection_domain(NULL);
ik->set_signers(NULL);
ik->set_source_file_name(NULL);
ik->set_source_debug_extension(NULL, 0);
ik->set_array_name(NULL);
ik->set_inner_classes(NULL);
ik->set_static_oop_field_count(0);
ik->set_nonstatic_field_size(0);
ik->set_is_marked_dependent(false);
ik->set_init_state(instanceKlass::allocated);
ik->set_init_thread(NULL);
ik->set_reference_type(rt);
ik->set_oop_map_cache(NULL);
ik->set_jni_ids(NULL);
ik->set_osr_nmethods_head(NULL);
ik->set_breakpoints(NULL);
ik->init_previous_versions();
ik->set_generic_signature(NULL);
ik->release_set_methods_jmethod_ids(NULL);
ik->release_set_methods_cached_itable_indices(NULL);
ik->set_class_annotations(NULL);
ik->set_fields_annotations(NULL);
ik->set_methods_annotations(NULL);
ik->set_methods_parameter_annotations(NULL);
ik->set_methods_default_annotations(NULL);
ik->set_jvmti_cached_class_field_map(NULL);
ik->set_initial_method_idnum(0);
assert(k()->is_parsable(), "should be parsable here.");
// initialize the non-header words to zero
intptr_t* p = (intptr_t*)k();
for (int index = instanceKlass::header_size(); index < size; index++) {
p[index] = NULL_WORD;
}
// To get verify to work - must be set to partial loaded before first GC point.
k()->set_partially_loaded();
}
Atomic::inc(&instanceKlass::_total_instanceKlass_count);
return k();
}