duke@435: /*
ysr@2650:  * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef CPU_X86_VM_GLOBALS_X86_HPP
stefank@2314: #define CPU_X86_VM_GLOBALS_X86_HPP
stefank@2314: 
stefank@2314: #include "utilities/globalDefinitions.hpp"
stefank@2314: #include "utilities/macros.hpp"
stefank@2314: 
duke@435: // Sets the default values for platform dependent flags used by the runtime system.
duke@435: // (see globals.hpp)
duke@435: 
phh@1499: define_pd_global(bool, ConvertSleepToYield,      true);
phh@1499: define_pd_global(bool, ShareVtableStubs,         true);
phh@1499: define_pd_global(bool, CountInterpCalls,         true);
phh@1499: define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this
duke@435: 
phh@1499: define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
phh@1499: define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
duke@435: 
duke@435: // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
duke@435: // assign a different value for C2 without touching a number of files. Use
duke@435: // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
duke@435: // c1 doesn't have this problem because the fix to 4858033 assures us
duke@435: // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
duke@435: // the uep and the vep doesn't get real alignment but just slops on by
duke@435: // only assured that the entry instruction meets the 5 byte size requirement.
duke@435: #ifdef COMPILER2
phh@1499: define_pd_global(intx, CodeEntryAlignment,       32);
duke@435: #else
phh@1499: define_pd_global(intx, CodeEntryAlignment,       16);
duke@435: #endif // COMPILER2
kvn@1800: define_pd_global(intx, OptoLoopAlignment,        16);
phh@1499: define_pd_global(intx, InlineFrequencyCount,     100);
phh@1499: define_pd_global(intx, InlineSmallCode,          1000);
duke@435: 
phh@1499: define_pd_global(intx, StackYellowPages, 2);
phh@1499: define_pd_global(intx, StackRedPages, 1);
duke@435: #ifdef AMD64
duke@435: // Very large C++ stack frames using solaris-amd64 optimized builds
duke@435: // due to lack of optimization caused by C++ compiler bugs
duke@435: define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2));
duke@435: #else
never@3569: define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));
duke@435: #endif // AMD64
duke@435: 
phh@1499: define_pd_global(intx, PreInflateSpin,           10);
duke@435: 
duke@435: define_pd_global(bool, RewriteBytecodes,     true);
duke@435: define_pd_global(bool, RewriteFrequentPairs, true);
bobv@2223: 
never@3156: #ifdef _ALLBSD_SOURCE
never@3156: define_pd_global(bool, UseMembar,            true);
never@3156: #else
bobv@2223: define_pd_global(bool, UseMembar,            false);
never@3156: #endif
stefank@2314: 
ysr@2650: // GC Ergo Flags
ysr@2650: define_pd_global(intx, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
stefank@2314: #endif // CPU_X86_VM_GLOBALS_X86_HPP