--- /dev/null 2016-08-24 15:41:39.598575000 -0400 +++ new/hotspot/src/cpu/arm/vm/globals_arm.hpp 2016-12-02 11:20:36.929400818 -0500 @@ -0,0 +1,98 @@ +/* + * 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