--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/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