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annotate src/cpu/x86/vm/stubRoutines_x86_32.hpp @ 7212:291ffc492eb6

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Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Fri, 14 Dec 2012 14:35:13 +0100
parents a3ecd773a7b9
children b800986664f4
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1 /*
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef CPU_X86_VM_STUBROUTINES_X86_32_HPP
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26 #define CPU_X86_VM_STUBROUTINES_X86_32_HPP
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27
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28 // This file holds the platform specific parts of the StubRoutines
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29 // definition. See stubRoutines.hpp for a description on how to
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30 // extend it.
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31
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32 enum platform_dependent_constants {
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33 code_size1 = 9000, // simply increase if too small (assembler will crash if too small)
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34 code_size2 = 22000 // simply increase if too small (assembler will crash if too small)
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35 };
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36
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37 class x86 {
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38 friend class StubGenerator;
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39 friend class VMStructs;
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40
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41 private:
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42 static address _verify_mxcsr_entry;
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43 static address _verify_fpu_cntrl_wrd_entry;
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44 // shuffle mask for fixing up 128-bit words consisting of big-endian 32-bit integers
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45 static address _key_shuffle_mask_addr;
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47 public:
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48 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; }
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49 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; }
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50 static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; }
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51
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52 };
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53
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54 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
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55
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56 #endif // CPU_X86_VM_STUBROUTINES_X86_32_HPP