1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.hotspot.replacements; 24 25 import org.graalvm.compiler.hotspot.replacements.NewObjectSnippets.ProfileContext; 26 import org.graalvm.compiler.options.EnumOptionValue; 27 import org.graalvm.compiler.options.Option; 28 import org.graalvm.compiler.options.OptionType; 29 import org.graalvm.compiler.options.OptionValue; 30 31 /** 32 * Options related to HotSpot snippets in this package. 33 * 34 * Note: This must be a top level class to work around for 35 * <a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=477597">Eclipse bug 477597</a>. 36 */ 37 public class HotspotSnippetsOptions { 38 39 // @formatter:off 40 @Option(help = "If the probability that a type check will hit one the profiled types (up to " + 41 "TypeCheckMaxHints) is below this value, the type check will be compiled without profiling info", type = OptionType.Expert) 42 public static final OptionValue<Double> TypeCheckMinProfileHitProbability = new OptionValue<>(0.5); 43 44 @Option(help = "The maximum number of profiled types that will be used when compiling a profiled type check. " + 45 "Note that TypeCheckMinProfileHitProbability also influences whether profiling info is used in compiled type checks.", type = OptionType.Expert) 46 public static final OptionValue<Integer> TypeCheckMaxHints = new OptionValue<>(2); 47 48 @Option(help = "Use a VM runtime call to load and clear the exception object from the thread at the start of a compiled exception handler.", type = OptionType.Debug) 49 public static final OptionValue<Boolean> LoadExceptionObjectInVM = new OptionValue<>(false); 50 51 @Option(help = "Enable profiling of allocation sites.", type = OptionType.Debug) 52 public static final OptionValue<Boolean> ProfileAllocations = new OptionValue<>(false); 53 54 @Option(help = "Control the naming of the counters when using ProfileAllocations.", type = OptionType.Debug) 55 public static final EnumOptionValue<ProfileContext> ProfileAllocationsContext = new EnumOptionValue<>(ProfileContext.AllocatingMethod); 56 57 @Option(help = "Enable profiling of monitor operations.", type = OptionType.Debug) 58 public static final OptionValue<Boolean> ProfileMonitors = new OptionValue<>(false); 59 60 @Option(help = "Trace monitor operations on objects whose type contains this substring.", type = OptionType.Debug) 61 public static final OptionValue<String> TraceMonitorsTypeFilter = new OptionValue<>(null); 62 63 @Option(help = "Trace monitor operations in methods whose fully qualified name contains this substring.", type = OptionType.Debug) 64 public static final OptionValue<String> TraceMonitorsMethodFilter = new OptionValue<>(null); 65 66 @Option(help = "Emit extra code to dynamically check monitor operations are balanced.", type = OptionType.Debug) 67 public static final OptionValue<Boolean> VerifyBalancedMonitors = new OptionValue<>(false); 68 //@formatter:on 69 }