1 /* 2 * Copyright (c) 2002, 2008, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "incls/_precompiled.incl" 26 #include "incls/_psPromotionLAB.cpp.incl" 27 28 size_t PSPromotionLAB::filler_header_size; 29 30 // This is the shared initialization code. It sets up the basic pointers, 31 // and allows enough extra space for a filler object. We call a virtual 32 // method, "lab_is_valid()" to handle the different asserts the old/young 33 // labs require. 34 void PSPromotionLAB::initialize(MemRegion lab) { 35 assert(lab_is_valid(lab), "Sanity"); 36 37 HeapWord* bottom = lab.start(); 38 HeapWord* end = lab.end(); 39 40 set_bottom(bottom); 41 set_end(end); 42 set_top(bottom); 43 44 // Initialize after VM starts up because header_size depends on compressed 45 // oops. 46 filler_header_size = align_object_size(typeArrayOopDesc::header_size(T_INT)); | 1 /* 2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp" 27 #include "gc_implementation/parallelScavenge/psPromotionLAB.hpp" 28 #include "gc_implementation/shared/mutableSpace.hpp" 29 #include "oops/oop.inline.hpp" 30 31 size_t PSPromotionLAB::filler_header_size; 32 33 // This is the shared initialization code. It sets up the basic pointers, 34 // and allows enough extra space for a filler object. We call a virtual 35 // method, "lab_is_valid()" to handle the different asserts the old/young 36 // labs require. 37 void PSPromotionLAB::initialize(MemRegion lab) { 38 assert(lab_is_valid(lab), "Sanity"); 39 40 HeapWord* bottom = lab.start(); 41 HeapWord* end = lab.end(); 42 43 set_bottom(bottom); 44 set_end(end); 45 set_top(bottom); 46 47 // Initialize after VM starts up because header_size depends on compressed 48 // oops. 49 filler_header_size = align_object_size(typeArrayOopDesc::header_size(T_INT)); |