Mercurial > hg > graal-compiler
diff graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotOptions.java @ 21551:5324104ac4f3
moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 26 May 2015 17:13:37 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotOptions.java Tue May 26 17:13:37 2015 +0200 @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2011, Oracle and/or its affiliates. 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. + */ +package com.oracle.jvmci.hotspot; + +import static com.oracle.jvmci.hotspot.HotSpotOptionsLoader.*; +import static java.lang.Double.*; + +import com.oracle.graal.debug.*; +import com.oracle.graal.options.*; +import com.oracle.graal.options.OptionUtils.OptionConsumer; +import com.oracle.jvmci.runtime.*; + +//JaCoCo Exclude + +/** + * Sets Graal options from the HotSpot command line. Such options are distinguished by the + * {@link #GRAAL_OPTION_PREFIX} prefix. + */ +public class HotSpotOptions { + + private static final String GRAAL_OPTION_PREFIX = "-G:"; + + /** + * Parses the JVMCI specific options specified to HotSpot (e.g., on the command line). + * + * @param optionsParsedClass the {@link Class} for {@link OptionsParsed} + * @return the implementations of {@link OptionsParsed} available + */ + private static native OptionsParsed[] parseVMOptions(Class<?> optionsParsedClass); + + static { + // Debug should not be initialized until all options that may affect + // its initialization have been processed. + assert !Debug.Initialization.isDebugInitialized() : "The class " + Debug.class.getName() + " must not be initialized before the JVMCI runtime has been initialized. " + + "This can be fixed by placing a call to " + JVMCI.class.getName() + ".getRuntime() on the path that triggers initialization of " + Debug.class.getName(); + + for (OptionsParsed handler : parseVMOptions(OptionsParsed.class)) { + handler.apply(); + } + } + + /** + * Ensures {@link HotSpotOptions} is initialized. + */ + public static void initialize() { + } + + /** + * Helper for the VM code called by {@link #parseVMOptions}. + * + * @param name the name of a parsed option + * @param option the object encapsulating the option + * @param spec specification of boolean option value, type of option value or action to take + */ + static void setOption(String name, OptionValue<?> option, char spec, String stringValue, long primitiveValue) { + switch (spec) { + case '+': + option.setValue(Boolean.TRUE); + break; + case '-': + option.setValue(Boolean.FALSE); + break; + case '?': + OptionUtils.printFlags(options, GRAAL_OPTION_PREFIX); + break; + case ' ': + OptionUtils.printNoMatchMessage(options, name, GRAAL_OPTION_PREFIX); + break; + case 'i': + option.setValue((int) primitiveValue); + break; + case 'f': + option.setValue((float) longBitsToDouble(primitiveValue)); + break; + case 'd': + option.setValue(longBitsToDouble(primitiveValue)); + break; + case 's': + option.setValue(stringValue); + break; + } + } + + /** + * Parses a given option value specification. + * + * @param option the specification of an option and its value + * @param setter the object to notify of the parsed option and value. If null, the + * {@link OptionValue#setValue(Object)} method of the specified option is called + * instead. + */ + public static boolean parseOption(String option, OptionConsumer setter) { + return OptionUtils.parseOption(options, option, GRAAL_OPTION_PREFIX, setter); + } +}