Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/globals_ext.hpp @ 4712:e7dead7e90af
7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not (and cannot) guarantee monotonicity, in GC code to an equivalent expression that uses os::javaTimeNanos(). os::javaTimeNanos is guaranteed monotonically non-decreasing if the underlying platform provides a monotonic time source. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes, ysr
author | johnc |
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date | Mon, 19 Dec 2011 10:02:05 -0800 |
parents | cd00eaeebef6 |
children | 6c995c08526c |
rev | line source |
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1 /* |
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2 * Copyright (c) 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 SHARE_VM_RUNTIME_GLOBALS_EXT_HPP |
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26 #define SHARE_VM_RUNTIME_GLOBALS_EXT_HPP |
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27 |
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28 // globals_extension.hpp extension |
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29 |
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30 // Additional CommandLineFlags enum values |
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31 #define COMMANDLINEFLAG_EXT |
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32 |
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33 // Additional CommandLineFlagsWithType enum values |
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34 #define COMMANDLINEFLAGWITHTYPE_EXT |
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35 |
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36 |
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37 // globals.cpp extension |
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38 |
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39 // Additional flag definitions |
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40 #define MATERIALIZE_FLAGS_EXT |
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41 |
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42 // Additional flag descriptors: see flagTable definition |
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43 #define FLAGTABLE_EXT |
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44 |
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45 |
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46 // Default method implementations |
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47 |
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48 inline bool Flag::is_unlocker_ext() const { |
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49 return false; |
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50 } |
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51 |
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52 inline bool Flag::is_unlocked_ext() const { |
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53 return true; |
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54 } |
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55 |
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56 #endif // SHARE_VM_RUNTIME_GLOBALS_EXT_HPP |