diff -r 78af2a4d1ec3 -r 0cc8699f7372 hotspot/src/cpu/aarch64/vm/globals_aarch64.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/src/cpu/aarch64/vm/globals_aarch64.hpp Tue Jan 20 11:34:17 2015 -0800 @@ -0,0 +1,129 @@ +/* + * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2014, Red Hat Inc. 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_AARCH64_VM_GLOBALS_AARCH64_HPP +#define CPU_AARCH64_VM_GLOBALS_AARCH64_HPP + +#include "utilities/globalDefinitions.hpp" +#include "utilities/macros.hpp" + +// Sets the default values for platform dependent flags used by the runtime system. +// (see globals.hpp) + +define_pd_global(bool, ConvertSleepToYield, true); +define_pd_global(bool, ShareVtableStubs, true); +define_pd_global(bool, CountInterpCalls, true); +define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this + +define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks +define_pd_global(bool, TrapBasedNullChecks, false); +define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast + +// See 4827828 for this change. There is no globals_core_i486.hpp. I can't +// assign a different value for C2 without touching a number of files. Use +// #ifdef to minimize the change as it's late in Mantis. -- FIXME. +// c1 doesn't have this problem because the fix to 4858033 assures us +// the the vep is aligned at CodeEntryAlignment whereas c2 only aligns +// the uep and the vep doesn't get real alignment but just slops on by +// only assured that the entry instruction meets the 5 byte size requirement. +#ifdef COMPILER2 +define_pd_global(intx, CodeEntryAlignment, 64); +#else +define_pd_global(intx, CodeEntryAlignment, 16); +#endif // COMPILER2 +define_pd_global(intx, OptoLoopAlignment, 16); +define_pd_global(intx, InlineFrequencyCount, 100); + +define_pd_global(intx, StackYellowPages, 2); +define_pd_global(intx, StackRedPages, 1); + +define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5)); + +define_pd_global(intx, PreInflateSpin, 10); + +define_pd_global(bool, RewriteBytecodes, true); +define_pd_global(bool, RewriteFrequentPairs, false); + +define_pd_global(bool, UseMembar, true); + +// GC Ergo Flags +define_pd_global(uintx, CMSYoungGenPerWorker, 64*M); // default max size of CMS young gen, per GC worker thread + +define_pd_global(uintx, TypeProfileLevel, 111); + +// avoid biased locking while we are bootstrapping the aarch64 build +define_pd_global(bool, UseBiasedLocking, false); + +#if defined(COMPILER1) || defined(COMPILER2) +define_pd_global(intx, InlineSmallCode, 1000); +#endif + +#ifdef BUILTIN_SIM +#define UseBuiltinSim true +#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \ + \ + product(bool, NotifySimulator, UseBuiltinSim, \ + "tell the AArch64 sim where we are in method code") \ + \ + product(bool, UseSimulatorCache, false, \ + "tell sim to cache memory updates until exclusive op occurs") \ + \ + product(bool, DisableBCCheck, true, \ + "tell sim not to invoke bccheck callback") \ + \ + product(bool, NearCpool, true, \ + "constant pool is close to instructions") \ + \ + notproduct(bool, UseAcqRelForVolatileFields, false, \ + "Use acquire and release insns for volatile fields") \ + \ + product(bool, UseCRC32, false, \ + "Use CRC32 instructions for CRC32 computation") \ + +// Don't attempt to use Neon on builtin sim until builtin sim supports it +#define UseCRC32 false + +#else +#define UseBuiltinSim false +#define NotifySimulator false +#define UseSimulatorCache false +#define DisableBCCheck true +#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \ + \ + product(bool, NearCpool, true, \ + "constant pool is close to instructions") \ + \ + notproduct(bool, UseAcqRelForVolatileFields, false, \ + "Use acquire and release insns for volatile fields") \ + product(bool, UseNeon, false, \ + "Use Neon for CRC32 computation") \ + product(bool, UseCRC32, false, \ + "Use CRC32 instructions for CRC32 computation") \ + product(bool, TraceTraps, false, "Trace all traps the signal handler") + +#endif + + +#endif // CPU_AARCH64_VM_GLOBALS_AARCH64_HPP