duke@435: /*
xdono@631:  * Copyright 2000-2008 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: # include "incls/_precompiled.incl"
duke@435: # include "incls/_methodDataKlass.cpp.incl"
duke@435: 
duke@435: klassOop methodDataKlass::create_klass(TRAPS) {
duke@435:   methodDataKlass o;
duke@435:   KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
duke@435:   KlassHandle k = base_create_klass(h_this_klass, header_size(),
duke@435:                                     o.vtbl_value(), CHECK_NULL);
duke@435:   // Make sure size calculation is right
duke@435:   assert(k()->size() == align_object_size(header_size()),
duke@435:          "wrong size for object");
duke@435:   return k();
duke@435: }
duke@435: 
duke@435: 
duke@435: int methodDataKlass::oop_size(oop obj) const {
duke@435:   assert(obj->is_methodData(), "must be method data oop");
duke@435:   return methodDataOop(obj)->object_size();
duke@435: }
duke@435: 
duke@435: 
duke@435: bool methodDataKlass::oop_is_parsable(oop obj) const {
duke@435:   assert(obj->is_methodData(), "must be method data oop");
duke@435:   return methodDataOop(obj)->object_is_parsable();
duke@435: }
duke@435: 
duke@435: 
duke@435: methodDataOop methodDataKlass::allocate(methodHandle method, TRAPS) {
duke@435:   int size = methodDataOopDesc::compute_allocation_size_in_words(method);
duke@435:   KlassHandle h_k(THREAD, as_klassOop());
duke@435:   methodDataOop mdo =
duke@435:     (methodDataOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL);
duke@435:   assert(!mdo->is_parsable(), "not expecting parsability yet.");
duke@435:   No_Safepoint_Verifier no_safepoint;  // init function atomic wrt GC
duke@435:   mdo->initialize(method);
duke@435: 
duke@435:   assert(mdo->is_parsable(), "should be parsable here.");
duke@435:   assert(size == mdo->object_size(), "wrong size for methodDataOop");
duke@435:   return mdo;
duke@435: }
duke@435: 
duke@435: 
duke@435: void methodDataKlass::oop_follow_contents(oop obj) {
duke@435:   assert (obj->is_methodData(), "object must be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435: 
duke@435:   obj->follow_header();
duke@435:   MarkSweep::mark_and_push(m->adr_method());
duke@435:   ResourceMark rm;
duke@435:   for (ProfileData* data = m->first_data();
duke@435:        m->is_valid(data);
duke@435:        data = m->next_data(data)) {
duke@435:     data->follow_contents();
duke@435:   }
duke@435: }
duke@435: 
duke@435: #ifndef SERIALGC
duke@435: void methodDataKlass::oop_follow_contents(ParCompactionManager* cm,
duke@435:                                           oop obj) {
duke@435:   assert (obj->is_methodData(), "object must be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435: 
duke@435:   obj->follow_header(cm);
duke@435:   PSParallelCompact::mark_and_push(cm, m->adr_method());
duke@435:   ResourceMark rm;
duke@435:   for (ProfileData* data = m->first_data();
duke@435:        m->is_valid(data);
duke@435:        data = m->next_data(data)) {
duke@435:     data->follow_contents(cm);
duke@435:   }
duke@435: }
duke@435: #endif // SERIALGC
duke@435: 
coleenp@548: 
duke@435: int methodDataKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
duke@435:   assert (obj->is_methodData(), "object must be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   // Get size before changing pointers
duke@435:   // Don't call size() or oop_size() since that is a virtual call.
duke@435:   int size = m->object_size();
duke@435: 
duke@435:   obj->oop_iterate_header(blk);
duke@435:   blk->do_oop(m->adr_method());
duke@435:   ResourceMark rm;
duke@435:   for (ProfileData* data = m->first_data();
duke@435:        m->is_valid(data);
duke@435:        data = m->next_data(data)) {
duke@435:     data->oop_iterate(blk);
duke@435:   }
duke@435:   return size;
duke@435: }
duke@435: 
duke@435: int methodDataKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
duke@435:   assert (obj->is_methodData(), "object must be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   // Get size before changing pointers
duke@435:   // Don't call size() or oop_size() since that is a virtual call.
duke@435:   int size = m->object_size();
duke@435: 
duke@435:   obj->oop_iterate_header(blk, mr);
duke@435:   oop* adr = m->adr_method();
duke@435:   if (mr.contains(adr)) {
duke@435:     blk->do_oop(m->adr_method());
duke@435:   }
duke@435:   ResourceMark rm;
duke@435:   for (ProfileData* data = m->first_data();
duke@435:        m->is_valid(data);
duke@435:        data = m->next_data(data)) {
duke@435:     data->oop_iterate_m(blk, mr);
duke@435:   }
duke@435:   return size;
duke@435: }
duke@435: 
duke@435: int methodDataKlass::oop_adjust_pointers(oop obj) {
duke@435:   assert(obj->is_methodData(), "should be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   // Get size before changing pointers
duke@435:   // Don't call size() or oop_size() since that is a virtual call.
duke@435:   int size = m->object_size();
duke@435: 
duke@435:   obj->adjust_header();
duke@435:   MarkSweep::adjust_pointer(m->adr_method());
duke@435:   ResourceMark rm;
duke@435:   ProfileData* data;
duke@435:   for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) {
duke@435:     data->adjust_pointers();
duke@435:   }
duke@435:   return size;
duke@435: }
duke@435: 
duke@435: 
duke@435: #ifndef SERIALGC
duke@435: void methodDataKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
duke@435:   assert (obj->is_methodData(), "object must be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   // This should never point into the young gen.
coleenp@548:   assert(!PSScavenge::should_scavenge(m->adr_method()), "Sanity");
duke@435: }
duke@435: 
duke@435: void methodDataKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
duke@435:   assert (obj->is_methodData(), "object must be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   // This should never point into the young gen.
coleenp@548:   assert(!PSScavenge::should_scavenge(m->adr_method()), "Sanity");
duke@435: }
duke@435: 
duke@435: int methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
duke@435:   assert(obj->is_methodData(), "should be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435: 
duke@435:   PSParallelCompact::adjust_pointer(m->adr_method());
duke@435: 
duke@435:   ResourceMark rm;
duke@435:   ProfileData* data;
duke@435:   for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) {
duke@435:     data->update_pointers();
duke@435:   }
duke@435:   return m->object_size();
duke@435: }
duke@435: 
duke@435: int
duke@435: methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
duke@435:                                      HeapWord* beg_addr, HeapWord* end_addr) {
duke@435:   assert(obj->is_methodData(), "should be method data");
duke@435: 
duke@435:   oop* p;
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435: 
duke@435:   p = m->adr_method();
duke@435:   PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
duke@435: 
duke@435:   ResourceMark rm;
duke@435:   ProfileData* data;
duke@435:   for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) {
duke@435:     data->update_pointers(beg_addr, end_addr);
duke@435:   }
duke@435:   return m->object_size();
duke@435: }
duke@435: #endif // SERIALGC
duke@435: 
duke@435: #ifndef PRODUCT
duke@435: 
duke@435: // Printing
duke@435: void methodDataKlass::oop_print_on(oop obj, outputStream* st) {
duke@435:   assert(obj->is_methodData(), "should be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   st->print("method data for ");
duke@435:   m->method()->print_value_on(st);
duke@435:   st->cr();
duke@435:   m->print_data_on(st);
duke@435: }
duke@435: 
duke@435: void methodDataKlass::oop_print_value_on(oop obj, outputStream* st) {
duke@435:   assert(obj->is_methodData(), "should be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   st->print("method data for ");
duke@435:   m->method()->print_value_on(st);
duke@435: }
duke@435: 
duke@435: #endif // !PRODUCT
duke@435: 
duke@435: const char* methodDataKlass::internal_name() const {
duke@435:   return "{method data}";
duke@435: }
duke@435: 
duke@435: 
duke@435: // Verification
duke@435: void methodDataKlass::oop_verify_on(oop obj, outputStream* st) {
duke@435:   Klass::oop_verify_on(obj, st);
duke@435:   guarantee(obj->is_methodData(), "object must be method data");
duke@435:   methodDataOop m = methodDataOop(obj);
duke@435:   guarantee(m->is_perm(), "should be in permspace");
duke@435:   m->verify_data_on(st);
duke@435: }