135 lines
6.0 KiB
C++
135 lines
6.0 KiB
C++
/*
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* Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2015, Red Hat Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
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#define CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
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#include "utilities/globalDefinitions.hpp"
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#include "utilities/macros.hpp"
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// Sets the default values for platform dependent flags used by the runtime system.
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// (see globals.hpp)
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define_pd_global(bool, ConvertSleepToYield, true);
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define_pd_global(bool, ShareVtableStubs, true);
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define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this
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define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
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define_pd_global(bool, TrapBasedNullChecks, false);
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define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast
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#if defined(COMPILER2) || INCLUDE_JVMCI
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define_pd_global(intx, CodeEntryAlignment, 64);
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#else
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define_pd_global(intx, CodeEntryAlignment, 16);
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#endif // COMPILER2
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define_pd_global(intx, OptoLoopAlignment, 16);
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define_pd_global(intx, InlineFrequencyCount, 100);
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#define DEFAULT_STACK_YELLOW_PAGES (2)
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#define DEFAULT_STACK_RED_PAGES (1)
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#define DEFAULT_STACK_SHADOW_PAGES (4 DEBUG_ONLY(+5))
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#define DEFAULT_STACK_RESERVED_PAGES (0)
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#define MIN_STACK_YELLOW_PAGES 1
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#define MIN_STACK_RED_PAGES 1
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#define MIN_STACK_SHADOW_PAGES 1
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#define MIN_STACK_RESERVED_PAGES (0)
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define_pd_global(intx, StackYellowPages, DEFAULT_STACK_YELLOW_PAGES);
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define_pd_global(intx, StackRedPages, DEFAULT_STACK_RED_PAGES);
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define_pd_global(intx, StackShadowPages, DEFAULT_STACK_SHADOW_PAGES);
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define_pd_global(intx, StackReservedPages, DEFAULT_STACK_RESERVED_PAGES);
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define_pd_global(bool, RewriteBytecodes, true);
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define_pd_global(bool, RewriteFrequentPairs, true);
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define_pd_global(bool, UseMembar, true);
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define_pd_global(bool, PreserveFramePointer, false);
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// GC Ergo Flags
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define_pd_global(uintx, CMSYoungGenPerWorker, 64*M); // default max size of CMS young gen, per GC worker thread
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define_pd_global(uintx, TypeProfileLevel, 111);
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// No performance work done here yet.
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define_pd_global(bool, CompactStrings, false);
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// avoid biased locking while we are bootstrapping the aarch64 build
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define_pd_global(bool, UseBiasedLocking, false);
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#if defined(COMPILER1) || defined(COMPILER2)
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define_pd_global(intx, InlineSmallCode, 1000);
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#endif
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#ifdef BUILTIN_SIM
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#define UseBuiltinSim true
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#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct, range, constraint) \
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\
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product(bool, NotifySimulator, UseBuiltinSim, \
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"tell the AArch64 sim where we are in method code") \
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\
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product(bool, UseSimulatorCache, false, \
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"tell sim to cache memory updates until exclusive op occurs") \
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\
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product(bool, DisableBCCheck, true, \
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"tell sim not to invoke bccheck callback") \
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\
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product(bool, NearCpool, true, \
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"constant pool is close to instructions") \
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\
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product(bool, UseBarriersForVolatile, false, \
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"Use memory barriers to implement volatile accesses") \
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\
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product(bool, UseCRC32, false, \
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"Use CRC32 instructions for CRC32 computation") \
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// Don't attempt to use Neon on builtin sim until builtin sim supports it
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#define UseCRC32 false
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#else
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#define UseBuiltinSim false
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#define NotifySimulator false
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#define UseSimulatorCache false
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#define DisableBCCheck true
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#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct, range, constraint) \
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\
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product(bool, NearCpool, true, \
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"constant pool is close to instructions") \
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\
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product(bool, UseBarriersForVolatile, false, \
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"Use memory barriers to implement volatile accesses") \
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product(bool, UseNeon, false, \
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"Use Neon for CRC32 computation") \
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product(bool, UseCRC32, false, \
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"Use CRC32 instructions for CRC32 computation") \
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product(bool, TraceTraps, false, "Trace all traps the signal handler")
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#endif
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#endif // CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
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