Mercurial > hg > truffle
diff 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 |
---|---|
date | Fri, 02 Aug 2013 16:46:45 +0200 |
parents | |
children | bd29f2c96a5f |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cpu/ppc/vm/globals_ppc.hpp Fri Aug 02 16:46:45 2013 +0200 @@ -0,0 +1,116 @@ +/* + * 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