62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
/*
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* Copyright (c) 2011, 2015, 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_CODE_RELOCINFO_EXT_HPP
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#define SHARE_VM_CODE_RELOCINFO_EXT_HPP
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// symbolic_Relocation allows to anotate some addresses in the generated code.
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//
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// This class was initially defined using the last unused relocType. The
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// new version tries to limit the impact on open source code changes.
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//
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// Without compiled code support, symbolic_Relocation need not be a real
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// relocation. To avoid using the last unused relocType, the
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// symbolic_Relocation::spec(<any symbolic type>) has been replaced
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// by additional methods using directly the symbolic type.
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//
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// Note: the order of the arguments in some methods had to reversed
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// to avoid confusion between the relocType enum and the
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// symbolic_reference enum.
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class symbolic_Relocation : AllStatic {
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public:
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enum symbolic_reference {
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card_table_reference,
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eden_top_reference,
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heap_end_reference,
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polling_page_reference,
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mark_bits_reference,
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mark_mask_reference,
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oop_bits_reference,
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oop_mask_reference,
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debug_string_reference,
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last_symbolic_reference
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};
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// get the new value for a given symbolic type
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static address symbolic_value(symbolic_reference t);
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};
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#endif // SHARE_VM_CODE_RELOCINFO_EXT_HPP
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