6397e809aa
Fix remaining issues after 8146401. Also fix windows VS2010 linkage problem (g1OopClosures.hpp). Reviewed-by: stefank, mgerdin
54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_GC_PARALLEL_OBJECTSTARTARRAY_INLINE_HPP
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#define SHARE_VM_GC_PARALLEL_OBJECTSTARTARRAY_INLINE_HPP
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#include "gc/parallel/objectStartArray.hpp"
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// Optimized for finding the first object that crosses into
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// a given block. The blocks contain the offset of the last
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// object in that block. Scroll backwards by one, and the first
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// object hit should be at the beginning of the block
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HeapWord* ObjectStartArray::object_start(HeapWord* addr) const {
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assert_covered_region_contains(addr);
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jbyte* block = block_for_addr(addr);
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HeapWord* scroll_forward = offset_addr_for_block(block--);
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while (scroll_forward > addr) {
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scroll_forward = offset_addr_for_block(block--);
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}
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HeapWord* next = scroll_forward;
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while (next <= addr) {
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scroll_forward = next;
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next += oop(next)->size();
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}
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assert(scroll_forward <= addr, "wrong order for current and arg");
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assert(addr <= next, "wrong order for arg and next");
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return scroll_forward;
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}
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#endif // SHARE_VM_GC_PARALLEL_OBJECTSTARTARRAY_INLINE_HPP
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