Thu, 07 Oct 2010 15:12:57 -0400
6989297: Integrate additional portability improvements
Reviewed-by: vladidan, dholmes
1 /*
2 * Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
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24 */
26 // Set the default values for platform dependent flags used by the
27 // runtime system. See globals.hpp for details of what they do.
29 define_pd_global(bool, ConvertSleepToYield, true);
30 define_pd_global(bool, ShareVtableStubs, true);
31 define_pd_global(bool, CountInterpCalls, true);
32 define_pd_global(bool, NeedsDeoptSuspend, false);
34 define_pd_global(bool, ImplicitNullChecks, true);
35 define_pd_global(bool, UncommonNullCast, true);
37 define_pd_global(intx, CodeEntryAlignment, 32);
38 define_pd_global(intx, OptoLoopAlignment, 16);
39 define_pd_global(intx, InlineFrequencyCount, 100);
40 define_pd_global(intx, PreInflateSpin, 10);
42 define_pd_global(intx, StackYellowPages, 2);
43 define_pd_global(intx, StackRedPages, 1);
44 define_pd_global(intx, StackShadowPages, 5 LP64_ONLY(+1) DEBUG_ONLY(+3));
46 define_pd_global(bool, RewriteBytecodes, true);
47 define_pd_global(bool, RewriteFrequentPairs, true);
49 define_pd_global(bool, UseMembar, false);