duke@435: /*
drchase@6680:  * Copyright (c) 2001, 2014, Oracle and/or its affiliates. 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:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
jprovino@4542: #include "utilities/macros.hpp"
jprovino@4542: #if INCLUDE_ALL_GCS
stefank@2314: #include "gc_implementation/shared/immutableSpace.hpp"
stefank@2314: #include "memory/universe.hpp"
stefank@2314: #include "oops/oop.inline.hpp"
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435: 
duke@435: void ImmutableSpace::initialize(MemRegion mr) {
duke@435:   HeapWord* bottom = mr.start();
duke@435:   HeapWord* end    = mr.end();
duke@435: 
duke@435:   assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end),
duke@435:          "invalid space boundaries");
duke@435: 
duke@435:   _bottom = bottom;
duke@435:   _end = end;
duke@435: }
duke@435: 
coleenp@4037: void ImmutableSpace::oop_iterate(ExtendedOopClosure* cl) {
duke@435:   HeapWord* obj_addr = bottom();
duke@435:   HeapWord* t = end();
duke@435:   // Could call objects iterate, but this is easier.
duke@435:   while (obj_addr < t) {
duke@435:     obj_addr += oop(obj_addr)->oop_iterate(cl);
duke@435:   }
duke@435: }
duke@435: 
duke@435: void ImmutableSpace::object_iterate(ObjectClosure* cl) {
duke@435:   HeapWord* p = bottom();
duke@435:   while (p < end()) {
duke@435:     cl->do_object(oop(p));
duke@435:     p += oop(p)->size();
duke@435:   }
duke@435: }
duke@435: 
duke@435: #ifndef PRODUCT
duke@435: 
duke@435: void ImmutableSpace::print_short() const {
duke@435:   tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K);
duke@435: }
duke@435: 
duke@435: void ImmutableSpace::print() const {
duke@435:   print_short();
drchase@6680:   tty->print_cr(" [" INTPTR_FORMAT_W(#-6) "," INTPTR_FORMAT_W(#-6) ")", p2i(bottom()), p2i(end()));
duke@435: }
duke@435: 
duke@435: #endif
duke@435: 
brutisso@3711: void ImmutableSpace::verify() {
duke@435:   HeapWord* p = bottom();
duke@435:   HeapWord* t = end();
duke@435:   HeapWord* prev_p = NULL;
duke@435:   while (p < t) {
duke@435:     oop(p)->verify();
duke@435:     prev_p = p;
duke@435:     p += oop(p)->size();
duke@435:   }
duke@435:   guarantee(p == end(), "end of last object must match end of space");
duke@435: }