Mercurial > hg > graal-compiler
view src/cpu/ppc/vm/globals_ppc.hpp @ 20331:18bf0b66de52
8044406: JVM crash with JDK8 (build 1.8.0-b132) with G1 GC
Summary: Fill the last card that has been allocated into with a dummy object
Reviewed-by: tschatzl, mgerdin
author | poonam |
---|---|
date | Tue, 19 Aug 2014 02:05:49 -0700 |
parents | 67fa91961822 |
children |
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/* * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright 2012, 2013 SAP AG. 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_PPC_VM_GLOBALS_PPC_HPP #define CPU_PPC_VM_GLOBALS_PPC_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, false); // Improves performance markedly for mtrt and compress. 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, true); define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast. // Use large code-entry alignment. define_pd_global(intx, CodeEntryAlignment, 128); define_pd_global(intx, OptoLoopAlignment, 16); define_pd_global(intx, InlineFrequencyCount, 100); define_pd_global(intx, InlineSmallCode, 1500); define_pd_global(intx, PreInflateSpin, 10); // Flags for template interpreter. define_pd_global(bool, RewriteBytecodes, true); define_pd_global(bool, RewriteFrequentPairs, true); define_pd_global(bool, UseMembar, false); // GC Ergo Flags define_pd_global(uintx, CMSYoungGenPerWorker, 16*M); // Default max size of CMS young gen, per GC worker thread. define_pd_global(uintx, TypeProfileLevel, 0); // Platform dependent flag handling: flags only defined on this platform. #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \ \ /* Load poll address from thread. This is used to implement per-thread */ \ /* safepoints on platforms != IA64. */ \ product(bool, LoadPollAddressFromThread, false, \ "Load polling page address from thread object (required for " \ "per-thread safepoints on platforms != IA64)") \ \ product(uintx, PowerArchitecturePPC64, 0, \ "CPU Version: x for PowerX. Currently recognizes Power5 to " \ "Power7. Default is 0. CPUs newer than Power7 will be " \ "recognized as Power7.") \ \ /* Reoptimize code-sequences of calls at runtime, e.g. replace an */ \ /* indirect call by a direct call. */ \ product(bool, ReoptimizeCallSequences, true, \ "Reoptimize code-sequences of calls at runtime.") \ \ product(bool, UseLoadInstructionsForStackBangingPPC64, false, \ "Use load instructions for stack banging.") \ \ /* special instructions */ \ \ product(bool, UseCountLeadingZerosInstructionsPPC64, true, \ "Use count leading zeros instructions.") \ \ product(bool, UseExtendedLoadAndReserveInstructionsPPC64, false, \ "Use extended versions of load-and-reserve instructions.") \ \ product(bool, UseRotateAndMaskInstructionsPPC64, true, \ "Use rotate and mask instructions.") \ \ product(bool, UseStaticBranchPredictionInCompareAndSwapPPC64, true, \ "Use static branch prediction hints in CAS operations.") \ product(bool, UseStaticBranchPredictionForUncommonPathsPPC64, false, \ "Use static branch prediction hints for uncommon paths.") \ \ product(bool, UsePower6SchedulerPPC64, false, \ "Use Power6 Scheduler.") \ \ product(bool, InsertEndGroupPPC64, false, \ "Insert EndGroup instructions to optimize for Power6.") \ \ /* Trap based checks. */ \ /* Trap based checks use the ppc trap instructions to check certain */ \ /* conditions. This instruction raises a SIGTRAP caught by the */ \ /* exception handler of the VM. */ \ product(bool, UseSIGTRAP, true, \ "Allow trap instructions that make use of SIGTRAP. Use this to " \ "switch off all optimizations requiring SIGTRAP.") \ product(bool, TrapBasedICMissChecks, true, \ "Raise and handle SIGTRAP if inline cache miss detected.") \ product(bool, TrapBasedNotEntrantChecks, true, \ "Raise and handle SIGTRAP if calling not entrant or zombie" \ " method.") \ product(bool, TraceTraps, false, "Trace all traps the signal handler" \ "handles.") \ \ product(bool, ZapMemory, false, "Write 0x0101... to empty memory." \ " Use this to ease debugging.") \ #endif // CPU_PPC_VM_GLOBALS_PPC_HPP