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annotate src/os_cpu/linux_sparc/vm/os_linux_sparc.hpp @ 20304:a22acf6d7598

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8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents f95d63e2154a
children
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1 /*
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2 * Copyright (c) 1999, 2010, 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 OS_CPU_LINUX_SPARC_VM_OS_LINUX_SPARC_HPP
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26 #define OS_CPU_LINUX_SPARC_VM_OS_LINUX_SPARC_HPP
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27
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28 //
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29 // NOTE: we are back in class os here, not Linux
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30 //
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31 static jint (*atomic_xchg_func) (jint, volatile jint*);
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32 static jint (*atomic_cmpxchg_func) (jint, volatile jint*, jint);
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33 static jlong (*atomic_cmpxchg_long_func)(jlong, volatile jlong*, jlong);
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34 static jint (*atomic_add_func) (jint, volatile jint*);
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35
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36 static jint atomic_xchg_bootstrap (jint, volatile jint*);
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37 static jint atomic_cmpxchg_bootstrap (jint, volatile jint*, jint);
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38 static jlong atomic_cmpxchg_long_bootstrap(jlong, volatile jlong*, jlong);
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39 static jint atomic_add_bootstrap (jint, volatile jint*);
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40
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41 static void setup_fpu() {}
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42
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43 static bool is_allocatable(size_t bytes);
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44
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45 // Used to register dynamic code cache area with the OS
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46 // Note: Currently only used in 64 bit Windows implementations
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47 static bool register_code_area(char *low, char *high) { return true; }
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48
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49 #endif // OS_CPU_LINUX_SPARC_VM_OS_LINUX_SPARC_HPP