hotspot/src/cpu/x86/vm/globals_x86.hpp
changeset 1 489c9b5090e2
child 2342 9a1260c3679d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/x86/vm/globals_x86.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,69 @@
+/*
+ * 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)
+//
+
+define_pd_global(bool,  ConvertSleepToYield,      true);
+define_pd_global(bool,  ShareVtableStubs,         true);
+define_pd_global(bool,  CountInterpCalls,         true);
+
+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
+
+// See 4827828 for this change. There is no globals_core_i486.hpp. I can't
+// assign a different value for C2 without touching a number of files. Use
+// #ifdef to minimize the change as it's late in Mantis. -- FIXME.
+// c1 doesn't have this problem because the fix to 4858033 assures us
+// the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
+// the uep and the vep doesn't get real alignment but just slops on by
+// only assured that the entry instruction meets the 5 byte size requirement.
+#ifdef COMPILER2
+define_pd_global(intx,  CodeEntryAlignment,       32);
+#else
+define_pd_global(intx,  CodeEntryAlignment,       16);
+#endif // COMPILER2
+
+define_pd_global(bool, NeedsDeoptSuspend,           false); // only register window machines need this
+
+define_pd_global(uintx, TLABSize,                 0);
+#ifdef AMD64
+define_pd_global(uintx, NewSize, ScaleForWordSize(2048 * K));
+// Very large C++ stack frames using solaris-amd64 optimized builds
+// due to lack of optimization caused by C++ compiler bugs
+define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2));
+#else
+define_pd_global(uintx, NewSize,                  1024 * K);
+define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
+#endif // AMD64
+define_pd_global(intx,  InlineFrequencyCount,     100);
+define_pd_global(intx,  PreInflateSpin,           10);
+
+define_pd_global(intx, StackYellowPages, 2);
+define_pd_global(intx, StackRedPages, 1);
+
+define_pd_global(bool, RewriteBytecodes,     true);
+define_pd_global(bool, RewriteFrequentPairs, true);