diff -r 000000000000 -r a61af66fc99e src/cpu/sparc/vm/globals_sparc.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cpu/sparc/vm/globals_sparc.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,65 @@ +/* + * Copyright 2000-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// +// Sets the default values for platform dependent flags used by the runtime system. +// (see globals.hpp) +// + +// For sparc we do not do call backs when a thread is in the interpreter, because the +// interpreter dispatch needs at least two instructions - first to load the dispatch address +// in a register, and second to jmp. The swapping of the dispatch table may occur _after_ +// the load of the dispatch address and hence the jmp would still go to the location +// according to the prior table. So, we let the thread continue and let it block by itself. +define_pd_global(bool, DontYieldALot, true); // yield no more than 100 times per second +define_pd_global(bool, ConvertSleepToYield, false); // do not convert sleep(0) to yield. Helps GUI +define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress +define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter +define_pd_global(bool, NeedsDeoptSuspend, true); // 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 past to check cast + +define_pd_global(intx, CodeEntryAlignment, 32); +define_pd_global(uintx, TLABSize, 0); +define_pd_global(uintx, NewSize, ScaleForWordSize((2048 * K) + (2 * (64 * K)))); +define_pd_global(intx, SurvivorRatio, 8); +define_pd_global(intx, InlineFrequencyCount, 50); // we can use more inlining on the SPARC +#ifdef _LP64 +// Stack slots are 2X larger in LP64 than in the 32 bit VM. +define_pd_global(intx, ThreadStackSize, 1024); +define_pd_global(intx, VMThreadStackSize, 1024); +#else +define_pd_global(intx, ThreadStackSize, 512); +define_pd_global(intx, VMThreadStackSize, 512); +#endif + +define_pd_global(intx, StackYellowPages, 2); +define_pd_global(intx, StackRedPages, 1); +define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1)); + +define_pd_global(intx, PreInflateSpin, 40); // Determined by running design center + +define_pd_global(bool, RewriteBytecodes, true); +define_pd_global(bool, RewriteFrequentPairs, true);