1 /* 2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2007, 2008, 2009, 2010, 2011 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. 23 * 24 */ 25 26 #ifndef CPU_ZERO_VM_GLOBALS_ZERO_HPP 27 #define CPU_ZERO_VM_GLOBALS_ZERO_HPP 28 29 #include "utilities/globalDefinitions.hpp" 30 #include "utilities/macros.hpp" 31 32 // Set the default values for platform dependent flags used by the 33 // runtime system. See globals.hpp for details of what they do. 34 35 define_pd_global(bool, ConvertSleepToYield, true); 36 define_pd_global(bool, ShareVtableStubs, true); 37 define_pd_global(bool, NeedsDeoptSuspend, false); 38 39 define_pd_global(bool, ImplicitNullChecks, true); 40 define_pd_global(bool, TrapBasedNullChecks, false); 41 define_pd_global(bool, UncommonNullCast, true); 42 43 define_pd_global(intx, CodeEntryAlignment, 32); 44 define_pd_global(intx, OptoLoopAlignment, 16); 45 define_pd_global(intx, InlineFrequencyCount, 100); 46 define_pd_global(intx, InlineSmallCode, 1000 ); 47 48 #define DEFAULT_STACK_YELLOW_PAGES (2) 49 #define DEFAULT_STACK_RED_PAGES (1) 50 #define DEFAULT_STACK_SHADOW_PAGES (5 LP64_ONLY(+1) DEBUG_ONLY(+3)) 51 52 #define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES 53 #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES 54 #define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES 55 56 define_pd_global(intx, StackYellowPages, DEFAULT_STACK_YELLOW_PAGES); 57 define_pd_global(intx, StackRedPages, DEFAULT_STACK_RED_PAGES); 58 define_pd_global(intx, StackShadowPages, DEFAULT_STACK_SHADOW_PAGES); 59 60 define_pd_global(bool, RewriteBytecodes, true); 61 define_pd_global(bool, RewriteFrequentPairs, true); 62 63 define_pd_global(bool, UseMembar, true); 64 65 // GC Ergo Flags 66 define_pd_global(size_t, CMSYoungGenPerWorker, 16*M); // default max size of CMS young gen, per GC worker thread 67 68 define_pd_global(uintx, TypeProfileLevel, 0); 69 70 define_pd_global(bool, PreserveFramePointer, false); 71 72 #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct, range, constraint) \ 73 \ 74 product(bool, UseFastEmptyMethods, true, \ 75 "Use fast method entry code for empty methods") \ 76 \ 77 product(bool, UseFastAccessorMethods, true, \ 78 "Use fast method entry code for accessor methods") \ 79 \ 80 81 #endif // CPU_ZERO_VM_GLOBALS_ZERO_HPP