| /* |
| * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef CPU_ARM_VM_GLOBALS_ARM_HPP |
| #define CPU_ARM_VM_GLOBALS_ARM_HPP |
| |
| // |
| // Sets the default values for platform dependent flags used by the runtime system. |
| // (see globals.hpp) |
| // |
| |
| define_pd_global(bool, ShareVtableStubs, true); |
| |
| define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks |
| define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast |
| define_pd_global(bool, TrapBasedNullChecks, false); // Not needed |
| |
| define_pd_global(uintx, CodeCacheSegmentSize, 64 TIERED_ONLY(+64)); // Tiered compilation has large code-entry alignment. |
| define_pd_global(intx, CodeEntryAlignment, 16); |
| define_pd_global(intx, OptoLoopAlignment, 16); |
| |
| define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this |
| |
| #define DEFAULT_STACK_YELLOW_PAGES (2) |
| #define DEFAULT_STACK_RED_PAGES (1) |
| #define DEFAULT_STACK_SHADOW_PAGES (5 DEBUG_ONLY(+1)) |
| #define DEFAULT_STACK_RESERVED_PAGES (0) |
| |
| #define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES |
| #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES |
| #define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES |
| #define MIN_STACK_RESERVED_PAGES (0) |
| |
| define_pd_global(intx, StackYellowPages, DEFAULT_STACK_YELLOW_PAGES); |
| define_pd_global(intx, StackRedPages, DEFAULT_STACK_RED_PAGES); |
| define_pd_global(intx, StackShadowPages, DEFAULT_STACK_SHADOW_PAGES); |
| define_pd_global(intx, StackReservedPages, DEFAULT_STACK_RESERVED_PAGES); |
| |
| define_pd_global(intx, InlineFrequencyCount, 50); |
| #if defined(COMPILER1) || defined(COMPILER2) |
| define_pd_global(intx, InlineSmallCode, 1500); |
| #endif |
| |
| define_pd_global(bool, RewriteBytecodes, true); |
| define_pd_global(bool, RewriteFrequentPairs, true); |
| |
| define_pd_global(bool, UseMembar, true); |
| |
| define_pd_global(bool, PreserveFramePointer, false); |
| |
| // GC Ergo Flags |
| define_pd_global(size_t, CMSYoungGenPerWorker, 16*M); // default max size of CMS young gen, per GC worker thread |
| |
| define_pd_global(uintx, TypeProfileLevel, 0); |
| |
| // No performance work done here yet. |
| define_pd_global(bool, CompactStrings, false); |
| |
| define_pd_global(intx, InitArrayShortSize, 8*BytesPerLong); |
| |
| #define ARCH_FLAGS(develop, \ |
| product, \ |
| diagnostic, \ |
| experimental, \ |
| notproduct, \ |
| range, \ |
| constraint, \ |
| writeable) \ |
| \ |
| develop(bool, VerifyInterpreterStackTop, false, \ |
| "Verify interpreter stack top at every stack expansion (AArch64 only)") \ |
| \ |
| develop(bool, ZapHighNonSignificantBits, false, \ |
| "Zap high non-significant bits of values (AArch64 only)") \ |
| \ |
| |
| #endif // CPU_ARM_VM_GLOBALS_ARM_HPP |