aoqi@0: /*
aoqi@0:  * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "ci/ciField.hpp"
aoqi@0: #include "ci/ciInstance.hpp"
aoqi@0: #include "ci/ciInstanceKlass.hpp"
aoqi@0: #include "ci/ciUtilities.hpp"
aoqi@0: #include "classfile/systemDictionary.hpp"
aoqi@0: #include "memory/allocation.hpp"
aoqi@0: #include "memory/allocation.inline.hpp"
aoqi@0: #include "oops/oop.inline.hpp"
aoqi@0: #include "oops/fieldStreams.hpp"
aoqi@0: #include "runtime/fieldDescriptor.hpp"
aoqi@0: 
aoqi@0: // ciInstanceKlass
aoqi@0: //
aoqi@0: // This class represents a Klass* in the HotSpot virtual machine
aoqi@0: // whose Klass part in an InstanceKlass.
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::ciInstanceKlass
aoqi@0: //
aoqi@0: // Loaded instance klass.
aoqi@0: ciInstanceKlass::ciInstanceKlass(KlassHandle h_k) :
aoqi@0:   ciKlass(h_k), _non_static_fields(NULL)
aoqi@0: {
aoqi@0:   assert(get_Klass()->oop_is_instance(), "wrong type");
aoqi@0:   assert(get_instanceKlass()->is_loaded(), "must be at least loaded");
aoqi@0:   InstanceKlass* ik = get_instanceKlass();
aoqi@0: 
aoqi@0:   AccessFlags access_flags = ik->access_flags();
aoqi@0:   _flags = ciFlags(access_flags);
aoqi@0:   _has_finalizer = access_flags.has_finalizer();
aoqi@0:   _has_subklass = ik->subklass() != NULL;
aoqi@0:   _init_state = ik->init_state();
aoqi@0:   _nonstatic_field_size = ik->nonstatic_field_size();
aoqi@0:   _has_nonstatic_fields = ik->has_nonstatic_fields();
aoqi@0:   _has_default_methods = ik->has_default_methods();
aoqi@0:   _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields:
aoqi@0: 
aoqi@0:   _implementor = NULL; // we will fill these lazily
aoqi@0: 
aoqi@0:   Thread *thread = Thread::current();
aoqi@0:   if (ciObjectFactory::is_initialized()) {
aoqi@0:     _loader = JNIHandles::make_local(thread, ik->class_loader());
aoqi@0:     _protection_domain = JNIHandles::make_local(thread,
aoqi@0:                                                 ik->protection_domain());
aoqi@0:     _is_shared = false;
aoqi@0:   } else {
aoqi@0:     Handle h_loader(thread, ik->class_loader());
aoqi@0:     Handle h_protection_domain(thread, ik->protection_domain());
aoqi@0:     _loader = JNIHandles::make_global(h_loader);
aoqi@0:     _protection_domain = JNIHandles::make_global(h_protection_domain);
aoqi@0:     _is_shared = true;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Lazy fields get filled in only upon request.
aoqi@0:   _super  = NULL;
aoqi@0:   _java_mirror = NULL;
aoqi@0: 
aoqi@0:   if (is_shared()) {
aoqi@0:     if (h_k() != SystemDictionary::Object_klass()) {
aoqi@0:       super();
aoqi@0:     }
aoqi@0:     //compute_nonstatic_fields();  // done outside of constructor
aoqi@0:   }
aoqi@0: 
aoqi@0:   _field_cache = NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: // Version for unloaded classes:
aoqi@0: ciInstanceKlass::ciInstanceKlass(ciSymbol* name,
aoqi@0:                                  jobject loader, jobject protection_domain)
aoqi@0:   : ciKlass(name, T_OBJECT)
aoqi@0: {
aoqi@0:   assert(name->byte_at(0) != '[', "not an instance klass");
aoqi@0:   _init_state = (InstanceKlass::ClassState)0;
aoqi@0:   _nonstatic_field_size = -1;
aoqi@0:   _has_nonstatic_fields = false;
aoqi@0:   _nonstatic_fields = NULL;
aoqi@0:   _loader = loader;
aoqi@0:   _protection_domain = protection_domain;
aoqi@0:   _is_shared = false;
aoqi@0:   _super = NULL;
aoqi@0:   _java_mirror = NULL;
aoqi@0:   _field_cache = NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::compute_shared_is_initialized
aoqi@0: void ciInstanceKlass::compute_shared_init_state() {
aoqi@0:   GUARDED_VM_ENTRY(
aoqi@0:     InstanceKlass* ik = get_instanceKlass();
aoqi@0:     _init_state = ik->init_state();
aoqi@0:   )
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::compute_shared_has_subklass
aoqi@0: bool ciInstanceKlass::compute_shared_has_subklass() {
aoqi@0:   GUARDED_VM_ENTRY(
aoqi@0:     InstanceKlass* ik = get_instanceKlass();
aoqi@0:     _has_subklass = ik->subklass() != NULL;
aoqi@0:     return _has_subklass;
aoqi@0:   )
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::loader
aoqi@0: oop ciInstanceKlass::loader() {
aoqi@0:   ASSERT_IN_VM;
aoqi@0:   return JNIHandles::resolve(_loader);
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::loader_handle
aoqi@0: jobject ciInstanceKlass::loader_handle() {
aoqi@0:   return _loader;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::protection_domain
aoqi@0: oop ciInstanceKlass::protection_domain() {
aoqi@0:   ASSERT_IN_VM;
aoqi@0:   return JNIHandles::resolve(_protection_domain);
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::protection_domain_handle
aoqi@0: jobject ciInstanceKlass::protection_domain_handle() {
aoqi@0:   return _protection_domain;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::field_cache
aoqi@0: //
aoqi@0: // Get the field cache associated with this klass.
aoqi@0: ciConstantPoolCache* ciInstanceKlass::field_cache() {
aoqi@0:   if (is_shared()) {
aoqi@0:     return NULL;
aoqi@0:   }
aoqi@0:   if (_field_cache == NULL) {
aoqi@0:     assert(!is_java_lang_Object(), "Object has no fields");
aoqi@0:     Arena* arena = CURRENT_ENV->arena();
aoqi@0:     _field_cache = new (arena) ciConstantPoolCache(arena, 5);
aoqi@0:   }
aoqi@0:   return _field_cache;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::get_canonical_holder
aoqi@0: //
aoqi@0: ciInstanceKlass* ciInstanceKlass::get_canonical_holder(int offset) {
aoqi@0:   #ifdef ASSERT
aoqi@0:   if (!(offset >= 0 && offset < layout_helper())) {
aoqi@0:     tty->print("*** get_canonical_holder(%d) on ", offset);
aoqi@0:     this->print();
aoqi@0:     tty->print_cr(" ***");
aoqi@0:   };
aoqi@0:   assert(offset >= 0 && offset < layout_helper(), "offset must be tame");
aoqi@0:   #endif
aoqi@0: 
aoqi@0:   if (offset < instanceOopDesc::base_offset_in_bytes()) {
aoqi@0:     // All header offsets belong properly to java/lang/Object.
aoqi@0:     return CURRENT_ENV->Object_klass();
aoqi@0:   }
aoqi@0: 
aoqi@0:   ciInstanceKlass* self = this;
aoqi@0:   for (;;) {
aoqi@0:     assert(self->is_loaded(), "must be loaded to have size");
aoqi@0:     ciInstanceKlass* super = self->super();
aoqi@0:     if (super == NULL || super->nof_nonstatic_fields() == 0 ||
aoqi@0:         !super->contains_field_offset(offset)) {
aoqi@0:       return self;
aoqi@0:     } else {
aoqi@0:       self = super;  // return super->get_canonical_holder(offset)
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::is_java_lang_Object
aoqi@0: //
aoqi@0: // Is this klass java.lang.Object?
aoqi@0: bool ciInstanceKlass::is_java_lang_Object() const {
aoqi@0:   return equals(CURRENT_ENV->Object_klass());
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::uses_default_loader
aoqi@0: bool ciInstanceKlass::uses_default_loader() const {
aoqi@0:   // Note:  We do not need to resolve the handle or enter the VM
aoqi@0:   // in order to test null-ness.
aoqi@0:   return _loader == NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Return basic type of boxed value for box klass or T_OBJECT if not.
aoqi@0:  */
aoqi@0: BasicType ciInstanceKlass::box_klass_type() const {
aoqi@0:   if (uses_default_loader() && is_loaded()) {
aoqi@0:     return SystemDictionary::box_klass_type(get_Klass());
aoqi@0:   } else {
aoqi@0:     return T_OBJECT;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Is this boxing klass?
aoqi@0:  */
aoqi@0: bool ciInstanceKlass::is_box_klass() const {
aoqi@0:   return is_java_primitive(box_klass_type());
aoqi@0: }
aoqi@0: 
aoqi@0: /**
aoqi@0:  *  Is this boxed value offset?
aoqi@0:  */
aoqi@0: bool ciInstanceKlass::is_boxed_value_offset(int offset) const {
aoqi@0:   BasicType bt = box_klass_type();
aoqi@0:   return is_java_primitive(bt) &&
aoqi@0:          (offset == java_lang_boxing_object::value_offset_in_bytes(bt));
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::is_in_package
aoqi@0: //
aoqi@0: // Is this klass in the given package?
aoqi@0: bool ciInstanceKlass::is_in_package(const char* packagename, int len) {
aoqi@0:   // To avoid class loader mischief, this test always rejects application classes.
aoqi@0:   if (!uses_default_loader())
aoqi@0:     return false;
aoqi@0:   GUARDED_VM_ENTRY(
aoqi@0:     return is_in_package_impl(packagename, len);
aoqi@0:   )
aoqi@0: }
aoqi@0: 
aoqi@0: bool ciInstanceKlass::is_in_package_impl(const char* packagename, int len) {
aoqi@0:   ASSERT_IN_VM;
aoqi@0: 
aoqi@0:   // If packagename contains trailing '/' exclude it from the
aoqi@0:   // prefix-test since we test for it explicitly.
aoqi@0:   if (packagename[len - 1] == '/')
aoqi@0:     len--;
aoqi@0: 
aoqi@0:   if (!name()->starts_with(packagename, len))
aoqi@0:     return false;
aoqi@0: 
aoqi@0:   // Test if the class name is something like "java/lang".
aoqi@0:   if ((len + 1) > name()->utf8_length())
aoqi@0:     return false;
aoqi@0: 
aoqi@0:   // Test for trailing '/'
aoqi@0:   if ((char) name()->byte_at(len) != '/')
aoqi@0:     return false;
aoqi@0: 
aoqi@0:   // Make sure it's not actually in a subpackage:
aoqi@0:   if (name()->index_of_at(len+1, "/", 1) >= 0)
aoqi@0:     return false;
aoqi@0: 
aoqi@0:   return true;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::print_impl
aoqi@0: //
aoqi@0: // Implementation of the print method.
aoqi@0: void ciInstanceKlass::print_impl(outputStream* st) {
aoqi@0:   ciKlass::print_impl(st);
aoqi@0:   GUARDED_VM_ENTRY(st->print(" loader=" INTPTR_FORMAT, p2i((address)loader()));)
aoqi@0:   if (is_loaded()) {
aoqi@0:     st->print(" loaded=true initialized=%s finalized=%s subklass=%s size=%d flags=",
aoqi@0:               bool_to_str(is_initialized()),
aoqi@0:               bool_to_str(has_finalizer()),
aoqi@0:               bool_to_str(has_subklass()),
aoqi@0:               layout_helper());
aoqi@0: 
aoqi@0:     _flags.print_klass_flags();
aoqi@0: 
aoqi@0:     if (_super) {
aoqi@0:       st->print(" super=");
aoqi@0:       _super->print_name();
aoqi@0:     }
aoqi@0:     if (_java_mirror) {
aoqi@0:       st->print(" mirror=PRESENT");
aoqi@0:     }
aoqi@0:   } else {
aoqi@0:     st->print(" loaded=false");
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::super
aoqi@0: //
aoqi@0: // Get the superklass of this klass.
aoqi@0: ciInstanceKlass* ciInstanceKlass::super() {
aoqi@0:   assert(is_loaded(), "must be loaded");
aoqi@0:   if (_super == NULL && !is_java_lang_Object()) {
aoqi@0:     GUARDED_VM_ENTRY(
aoqi@0:       Klass* super_klass = get_instanceKlass()->super();
aoqi@0:       _super = CURRENT_ENV->get_instance_klass(super_klass);
aoqi@0:     )
aoqi@0:   }
aoqi@0:   return _super;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::java_mirror
aoqi@0: //
aoqi@0: // Get the instance of java.lang.Class corresponding to this klass.
aoqi@0: // Cache it on this->_java_mirror.
aoqi@0: ciInstance* ciInstanceKlass::java_mirror() {
aoqi@0:   if (is_shared()) {
aoqi@0:     return ciKlass::java_mirror();
aoqi@0:   }
aoqi@0:   if (_java_mirror == NULL) {
aoqi@0:     _java_mirror = ciKlass::java_mirror();
aoqi@0:   }
aoqi@0:   return _java_mirror;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::unique_concrete_subklass
aoqi@0: ciInstanceKlass* ciInstanceKlass::unique_concrete_subklass() {
aoqi@0:   if (!is_loaded())     return NULL; // No change if class is not loaded
aoqi@0:   if (!is_abstract())   return NULL; // Only applies to abstract classes.
aoqi@0:   if (!has_subklass())  return NULL; // Must have at least one subklass.
aoqi@0:   VM_ENTRY_MARK;
aoqi@0:   InstanceKlass* ik = get_instanceKlass();
aoqi@0:   Klass* up = ik->up_cast_abstract();
aoqi@0:   assert(up->oop_is_instance(), "must be InstanceKlass");
aoqi@0:   if (ik == up) {
aoqi@0:     return NULL;
aoqi@0:   }
aoqi@0:   return CURRENT_THREAD_ENV->get_instance_klass(up);
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::has_finalizable_subclass
aoqi@0: bool ciInstanceKlass::has_finalizable_subclass() {
aoqi@0:   if (!is_loaded())     return true;
aoqi@0:   VM_ENTRY_MARK;
aoqi@0:   return Dependencies::find_finalizable_subclass(get_instanceKlass()) != NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::get_field_by_offset
aoqi@0: ciField* ciInstanceKlass::get_field_by_offset(int field_offset, bool is_static) {
aoqi@0:   if (!is_static) {
aoqi@0:     for (int i = 0, len = nof_nonstatic_fields(); i < len; i++) {
aoqi@0:       ciField* field = _nonstatic_fields->at(i);
aoqi@0:       int  field_off = field->offset_in_bytes();
aoqi@0:       if (field_off == field_offset)
aoqi@0:         return field;
aoqi@0:       if (field_off > field_offset)
aoqi@0:         break;
aoqi@0:       // could do binary search or check bins, but probably not worth it
aoqi@0:     }
aoqi@0:     return NULL;
aoqi@0:   }
aoqi@0:   VM_ENTRY_MARK;
aoqi@0:   InstanceKlass* k = get_instanceKlass();
aoqi@0:   fieldDescriptor fd;
aoqi@0:   if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
aoqi@0:     return NULL;
aoqi@0:   }
aoqi@0:   ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
aoqi@0:   return field;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::get_field_by_name
aoqi@0: ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
aoqi@0:   VM_ENTRY_MARK;
aoqi@0:   InstanceKlass* k = get_instanceKlass();
aoqi@0:   fieldDescriptor fd;
aoqi@0:   Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
aoqi@0:   if (def == NULL) {
aoqi@0:     return NULL;
aoqi@0:   }
aoqi@0:   ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
aoqi@0:   return field;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::non_static_fields.
aoqi@0: 
aoqi@0: class NonStaticFieldFiller: public FieldClosure {
aoqi@0:   GrowableArray<ciField*>* _arr;
aoqi@0:   ciEnv* _curEnv;
aoqi@0: public:
aoqi@0:   NonStaticFieldFiller(ciEnv* curEnv, GrowableArray<ciField*>* arr) :
aoqi@0:     _curEnv(curEnv), _arr(arr)
aoqi@0:   {}
aoqi@0:   void do_field(fieldDescriptor* fd) {
aoqi@0:     ciField* field = new (_curEnv->arena()) ciField(fd);
aoqi@0:     _arr->append(field);
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: GrowableArray<ciField*>* ciInstanceKlass::non_static_fields() {
aoqi@0:   if (_non_static_fields == NULL) {
aoqi@0:     VM_ENTRY_MARK;
aoqi@0:     ciEnv* curEnv = ciEnv::current();
aoqi@0:     InstanceKlass* ik = get_instanceKlass();
aoqi@0:     int max_n_fields = ik->java_fields_count();
aoqi@0: 
aoqi@0:     Arena* arena = curEnv->arena();
aoqi@0:     _non_static_fields =
aoqi@0:       new (arena) GrowableArray<ciField*>(arena, max_n_fields, 0, NULL);
aoqi@0:     NonStaticFieldFiller filler(curEnv, _non_static_fields);
aoqi@0:     ik->do_nonstatic_fields(&filler);
aoqi@0:   }
aoqi@0:   return _non_static_fields;
aoqi@0: }
aoqi@0: 
aoqi@0: static int sort_field_by_offset(ciField** a, ciField** b) {
aoqi@0:   return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
aoqi@0:   // (no worries about 32-bit overflow...)
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::compute_nonstatic_fields
aoqi@0: int ciInstanceKlass::compute_nonstatic_fields() {
aoqi@0:   assert(is_loaded(), "must be loaded");
aoqi@0: 
aoqi@0:   if (_nonstatic_fields != NULL)
aoqi@0:     return _nonstatic_fields->length();
aoqi@0: 
aoqi@0:   if (!has_nonstatic_fields()) {
aoqi@0:     Arena* arena = CURRENT_ENV->arena();
aoqi@0:     _nonstatic_fields = new (arena) GrowableArray<ciField*>(arena, 0, 0, NULL);
aoqi@0:     return 0;
aoqi@0:   }
aoqi@0:   assert(!is_java_lang_Object(), "bootstrap OK");
aoqi@0: 
aoqi@0:   // Size in bytes of my fields, including inherited fields.
aoqi@0:   int fsize = nonstatic_field_size() * heapOopSize;
aoqi@0: 
aoqi@0:   ciInstanceKlass* super = this->super();
aoqi@0:   GrowableArray<ciField*>* super_fields = NULL;
aoqi@0:   if (super != NULL && super->has_nonstatic_fields()) {
aoqi@0:     int super_fsize  = super->nonstatic_field_size() * heapOopSize;
aoqi@0:     int super_flen   = super->nof_nonstatic_fields();
aoqi@0:     super_fields = super->_nonstatic_fields;
aoqi@0:     assert(super_flen == 0 || super_fields != NULL, "first get nof_fields");
aoqi@0:     // See if I am no larger than my super; if so, I can use his fields.
aoqi@0:     if (fsize == super_fsize) {
aoqi@0:       _nonstatic_fields = super_fields;
aoqi@0:       return super_fields->length();
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   GrowableArray<ciField*>* fields = NULL;
aoqi@0:   GUARDED_VM_ENTRY({
aoqi@0:       fields = compute_nonstatic_fields_impl(super_fields);
aoqi@0:     });
aoqi@0: 
aoqi@0:   if (fields == NULL) {
aoqi@0:     // This can happen if this class (java.lang.Class) has invisible fields.
aoqi@0:     _nonstatic_fields = super_fields;
aoqi@0:     return super_fields->length();
aoqi@0:   }
aoqi@0: 
aoqi@0:   int flen = fields->length();
aoqi@0: 
aoqi@0:   // Now sort them by offset, ascending.
aoqi@0:   // (In principle, they could mix with superclass fields.)
aoqi@0:   fields->sort(sort_field_by_offset);
aoqi@0:   _nonstatic_fields = fields;
aoqi@0:   return flen;
aoqi@0: }
aoqi@0: 
aoqi@0: GrowableArray<ciField*>*
aoqi@0: ciInstanceKlass::compute_nonstatic_fields_impl(GrowableArray<ciField*>*
aoqi@0:                                                super_fields) {
aoqi@0:   ASSERT_IN_VM;
aoqi@0:   Arena* arena = CURRENT_ENV->arena();
aoqi@0:   int flen = 0;
aoqi@0:   GrowableArray<ciField*>* fields = NULL;
aoqi@0:   InstanceKlass* k = get_instanceKlass();
aoqi@0:   for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
aoqi@0:     if (fs.access_flags().is_static())  continue;
aoqi@0:     flen += 1;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // allocate the array:
aoqi@0:   if (flen == 0) {
aoqi@0:     return NULL;  // return nothing if none are locally declared
aoqi@0:   }
aoqi@0:   if (super_fields != NULL) {
aoqi@0:     flen += super_fields->length();
aoqi@0:   }
aoqi@0:   fields = new (arena) GrowableArray<ciField*>(arena, flen, 0, NULL);
aoqi@0:   if (super_fields != NULL) {
aoqi@0:     fields->appendAll(super_fields);
aoqi@0:   }
aoqi@0: 
aoqi@0:   for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
aoqi@0:     if (fs.access_flags().is_static())  continue;
aoqi@0:     fieldDescriptor& fd = fs.field_descriptor();
aoqi@0:     ciField* field = new (arena) ciField(&fd);
aoqi@0:     fields->append(field);
aoqi@0:   }
aoqi@0:   assert(fields->length() == flen, "sanity");
aoqi@0:   return fields;
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::find_method
aoqi@0: //
aoqi@0: // Find a method in this klass.
aoqi@0: ciMethod* ciInstanceKlass::find_method(ciSymbol* name, ciSymbol* signature) {
aoqi@0:   VM_ENTRY_MARK;
aoqi@0:   InstanceKlass* k = get_instanceKlass();
aoqi@0:   Symbol* name_sym = name->get_symbol();
aoqi@0:   Symbol* sig_sym= signature->get_symbol();
aoqi@0: 
aoqi@0:   Method* m = k->find_method(name_sym, sig_sym);
aoqi@0:   if (m == NULL)  return NULL;
aoqi@0: 
aoqi@0:   return CURRENT_THREAD_ENV->get_method(m);
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::is_leaf_type
aoqi@0: bool ciInstanceKlass::is_leaf_type() {
aoqi@0:   assert(is_loaded(), "must be loaded");
aoqi@0:   if (is_shared()) {
aoqi@0:     return is_final();  // approximately correct
aoqi@0:   } else {
aoqi@0:     return !_has_subklass && (nof_implementors() == 0);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // ------------------------------------------------------------------
aoqi@0: // ciInstanceKlass::implementor
aoqi@0: //
aoqi@0: // Report an implementor of this interface.
aoqi@0: // Note that there are various races here, since my copy
aoqi@0: // of _nof_implementors might be out of date with respect
aoqi@0: // to results returned by InstanceKlass::implementor.
aoqi@0: // This is OK, since any dependencies we decide to assert
aoqi@0: // will be checked later under the Compile_lock.
aoqi@0: ciInstanceKlass* ciInstanceKlass::implementor() {
aoqi@0:   ciInstanceKlass* impl = _implementor;
aoqi@0:   if (impl == NULL) {
aoqi@0:     // Go into the VM to fetch the implementor.
aoqi@0:     {
aoqi@0:       VM_ENTRY_MARK;
aoqi@0:       Klass* k = get_instanceKlass()->implementor();
aoqi@0:       if (k != NULL) {
aoqi@0:         if (k == get_instanceKlass()) {
aoqi@0:           // More than one implementors. Use 'this' in this case.
aoqi@0:           impl = this;
aoqi@0:         } else {
aoqi@0:           impl = CURRENT_THREAD_ENV->get_instance_klass(k);
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:     // Memoize this result.
aoqi@0:     if (!is_shared()) {
aoqi@0:       _implementor = impl;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   return impl;
aoqi@0: }
aoqi@0: 
aoqi@0: // Utility class for printing of the contents of the static fields for
aoqi@0: // use by compilation replay.  It only prints out the information that
aoqi@0: // could be consumed by the compiler, so for primitive types it prints
aoqi@0: // out the actual value.  For Strings it's the actual string value.
aoqi@0: // For array types it it's first level array size since that's the
aoqi@0: // only value which statically unchangeable.  For all other reference
aoqi@0: // types it simply prints out the dynamic type.
aoqi@0: 
aoqi@0: class StaticFinalFieldPrinter : public FieldClosure {
aoqi@0:   outputStream* _out;
aoqi@0:   const char*   _holder;
aoqi@0:  public:
aoqi@0:   StaticFinalFieldPrinter(outputStream* out, const char* holder) :
aoqi@0:     _out(out),
aoqi@0:     _holder(holder) {
aoqi@0:   }
aoqi@0:   void do_field(fieldDescriptor* fd) {
aoqi@0:     if (fd->is_final() && !fd->has_initial_value()) {
aoqi@0:       ResourceMark rm;
aoqi@0:       oop mirror = fd->field_holder()->java_mirror();
aoqi@0:       _out->print("staticfield %s %s %s ", _holder, fd->name()->as_quoted_ascii(), fd->signature()->as_quoted_ascii());
aoqi@0:       switch (fd->field_type()) {
aoqi@0:         case T_BYTE:    _out->print_cr("%d", mirror->byte_field(fd->offset()));   break;
aoqi@0:         case T_BOOLEAN: _out->print_cr("%d", mirror->bool_field(fd->offset()));   break;
aoqi@0:         case T_SHORT:   _out->print_cr("%d", mirror->short_field(fd->offset()));  break;
aoqi@0:         case T_CHAR:    _out->print_cr("%d", mirror->char_field(fd->offset()));   break;
aoqi@0:         case T_INT:     _out->print_cr("%d", mirror->int_field(fd->offset()));    break;
aoqi@0:         case T_LONG:    _out->print_cr(INT64_FORMAT, (int64_t)(mirror->long_field(fd->offset())));   break;
aoqi@0:         case T_FLOAT: {
aoqi@0:           float f = mirror->float_field(fd->offset());
aoqi@0:           _out->print_cr("%d", *(int*)&f);
aoqi@0:           break;
aoqi@0:         }
aoqi@0:         case T_DOUBLE: {
aoqi@0:           double d = mirror->double_field(fd->offset());
aoqi@0:           _out->print_cr(INT64_FORMAT, *(int64_t*)&d);
aoqi@0:           break;
aoqi@0:         }
aoqi@0:         case T_ARRAY: {
aoqi@0:           oop value =  mirror->obj_field_acquire(fd->offset());
aoqi@0:           if (value == NULL) {
aoqi@0:             _out->print_cr("null");
aoqi@0:           } else {
aoqi@0:             typeArrayOop ta = (typeArrayOop)value;
aoqi@0:             _out->print("%d", ta->length());
aoqi@0:             if (value->is_objArray()) {
aoqi@0:               objArrayOop oa = (objArrayOop)value;
aoqi@0:               const char* klass_name  = value->klass()->name()->as_quoted_ascii();
aoqi@0:               _out->print(" %s", klass_name);
aoqi@0:             }
aoqi@0:             _out->cr();
aoqi@0:           }
aoqi@0:           break;
aoqi@0:         }
aoqi@0:         case T_OBJECT: {
aoqi@0:           oop value =  mirror->obj_field_acquire(fd->offset());
aoqi@0:           if (value == NULL) {
aoqi@0:             _out->print_cr("null");
aoqi@0:           } else if (value->is_instance()) {
aoqi@0:             if (value->is_a(SystemDictionary::String_klass())) {
aoqi@0:               _out->print("\"");
aoqi@0:               _out->print_raw(java_lang_String::as_quoted_ascii(value));
aoqi@0:               _out->print_cr("\"");
aoqi@0:             } else {
aoqi@0:               const char* klass_name  = value->klass()->name()->as_quoted_ascii();
aoqi@0:               _out->print_cr("%s", klass_name);
aoqi@0:             }
aoqi@0:           } else {
aoqi@0:             ShouldNotReachHere();
aoqi@0:           }
aoqi@0:           break;
aoqi@0:         }
aoqi@0:         default:
aoqi@0:           ShouldNotReachHere();
aoqi@0:         }
aoqi@0:     }
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: 
aoqi@0: void ciInstanceKlass::dump_replay_data(outputStream* out) {
aoqi@0:   ResourceMark rm;
aoqi@0: 
aoqi@0:   InstanceKlass* ik = get_instanceKlass();
aoqi@0:   ConstantPool*  cp = ik->constants();
aoqi@0: 
aoqi@0:   // Try to record related loaded classes
aoqi@0:   Klass* sub = ik->subklass();
aoqi@0:   while (sub != NULL) {
aoqi@0:     if (sub->oop_is_instance()) {
aoqi@0:       out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
aoqi@0:     }
aoqi@0:     sub = sub->next_sibling();
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Dump out the state of the constant pool tags.  During replay the
aoqi@0:   // tags will be validated for things which shouldn't change and
aoqi@0:   // classes will be resolved if the tags indicate that they were
aoqi@0:   // resolved at compile time.
aoqi@0:   out->print("ciInstanceKlass %s %d %d %d", ik->name()->as_quoted_ascii(),
aoqi@0:              is_linked(), is_initialized(), cp->length());
aoqi@0:   for (int index = 1; index < cp->length(); index++) {
aoqi@0:     out->print(" %d", cp->tags()->at(index));
aoqi@0:   }
aoqi@0:   out->cr();
aoqi@0:   if (is_initialized()) {
aoqi@0:     //  Dump out the static final fields in case the compilation relies
aoqi@0:     //  on their value for correct replay.
aoqi@0:     StaticFinalFieldPrinter sffp(out, ik->name()->as_quoted_ascii());
aoqi@0:     ik->do_local_static_fields(&sffp);
aoqi@0:   }
aoqi@0: }