author | ysr |
Wed, 16 Mar 2011 10:37:08 -0700 | |
changeset 8687 | 264727307495 |
parent 7921 | 9a89fc7051a3 |
child 10565 | dc90c239f4ec |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2000, 2011, 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 CPU_X86_VM_GLOBALS_X86_HPP |
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#define CPU_X86_VM_GLOBALS_X86_HPP |
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#include "utilities/globalDefinitions.hpp" |
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#include "utilities/macros.hpp" |
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// Sets the default values for platform dependent flags used by the runtime system. |
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// (see globals.hpp) |
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define_pd_global(bool, ConvertSleepToYield, true); |
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define_pd_global(bool, ShareVtableStubs, true); |
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define_pd_global(bool, CountInterpCalls, true); |
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define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this |
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define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks |
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define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast |
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// See 4827828 for this change. There is no globals_core_i486.hpp. I can't |
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// assign a different value for C2 without touching a number of files. Use |
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// #ifdef to minimize the change as it's late in Mantis. -- FIXME. |
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// c1 doesn't have this problem because the fix to 4858033 assures us |
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// the the vep is aligned at CodeEntryAlignment whereas c2 only aligns |
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// the uep and the vep doesn't get real alignment but just slops on by |
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// only assured that the entry instruction meets the 5 byte size requirement. |
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#ifdef COMPILER2 |
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define_pd_global(intx, CodeEntryAlignment, 32); |
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#else |
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define_pd_global(intx, CodeEntryAlignment, 16); |
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#endif // COMPILER2 |
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define_pd_global(intx, OptoLoopAlignment, 16); |
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define_pd_global(intx, InlineFrequencyCount, 100); |
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define_pd_global(intx, InlineSmallCode, 1000); |
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define_pd_global(intx, StackYellowPages, 2); |
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define_pd_global(intx, StackRedPages, 1); |
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#ifdef AMD64 |
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// Very large C++ stack frames using solaris-amd64 optimized builds |
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// due to lack of optimization caused by C++ compiler bugs |
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define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2)); |
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#else |
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define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+5)); |
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#endif // AMD64 |
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define_pd_global(intx, PreInflateSpin, 10); |
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define_pd_global(bool, RewriteBytecodes, true); |
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define_pd_global(bool, RewriteFrequentPairs, true); |
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define_pd_global(bool, UseMembar, false); |
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// GC Ergo Flags |
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define_pd_global(intx, CMSYoungGenPerWorker, 64*M); // default max size of CMS young gen, per GC worker thread |
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#endif // CPU_X86_VM_GLOBALS_X86_HPP |