Mercurial > hg > truffle
view src/cpu/ppc/vm/globals_ppc.hpp @ 14408:ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
Summary: With this change the HotSpot core build works on Linux/PPC64. The VM succesfully executes simple test programs.
Reviewed-by: kvn
author | goetz |
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date | Fri, 02 Aug 2013 16:46:45 +0200 |
parents | |
children | bd29f2c96a5f |
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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, 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(intx, CMSYoungGenPerWorker, 16*M); // Default max size of CMS young gen, per GC worker thread. // Platform dependent flag handling: flags only defined on this platform. #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \ 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.") \ \ /* 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, false, \ "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, TrapBasedNullChecks, true, \ "Generate code for null checks that uses a cmp and trap " \ "instruction raising SIGTRAP. This is only used if an access to" \ "null (+offset) will not raise a SIGSEGV.") \ product(bool, TrapBasedRangeChecks, true, \ "Raise and handle SIGTRAP if array out of bounds check fails.") \ 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