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| 1 | +/* |
| 2 | + * Copyright (c) 2021, 2021, Oracle and/or its affiliates. All rights reserved. |
| 3 | + * Copyright (c) 2021, 2021, Alibaba Group Holding Limited. All rights reserved. |
| 4 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 | + * |
| 6 | + * This code is free software; you can redistribute it and/or modify it |
| 7 | + * under the terms of the GNU General Public License version 2 only, as |
| 8 | + * published by the Free Software Foundation. Oracle designates this |
| 9 | + * particular file as subject to the "Classpath" exception as provided |
| 10 | + * by Oracle in the LICENSE file that accompanied this code. |
| 11 | + * |
| 12 | + * This code is distributed in the hope that it will be useful, but WITHOUT |
| 13 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 15 | + * version 2 for more details (a copy is included in the LICENSE file that |
| 16 | + * accompanied this code). |
| 17 | + * |
| 18 | + * You should have received a copy of the GNU General Public License version |
| 19 | + * 2 along with this work; if not, write to the Free Software Foundation, |
| 20 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | + * |
| 22 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 23 | + * or visit www.oracle.com if you need additional information or have any |
| 24 | + * questions. |
| 25 | + */ |
| 26 | + |
| 27 | +package com.oracle.graal.pointsto.util; |
| 28 | + |
| 29 | +import org.graalvm.nativeimage.base.option.CommonOptionParser; |
| 30 | +import org.graalvm.nativeimage.base.option.CommonOptionParser.BooleanOptionFormat; |
| 31 | +import org.graalvm.nativeimage.base.option.CommonOptionParser.OptionParseResult; |
| 32 | +import org.graalvm.nativeimage.base.option.OptionParsingException; |
| 33 | +import org.graalvm.nativeimage.base.option.UnsupportedOptionClassException; |
| 34 | +import org.graalvm.collections.EconomicMap; |
| 35 | +import org.graalvm.compiler.options.OptionDescriptor; |
| 36 | +import org.graalvm.compiler.options.OptionDescriptors; |
| 37 | +import org.graalvm.compiler.options.OptionKey; |
| 38 | +import org.graalvm.compiler.options.OptionValues; |
| 39 | + |
| 40 | +import java.io.PrintStream; |
| 41 | +import java.util.ArrayList; |
| 42 | +import java.util.Arrays; |
| 43 | +import java.util.HashSet; |
| 44 | +import java.util.List; |
| 45 | +import java.util.Set; |
| 46 | +import java.util.function.Predicate; |
| 47 | + |
| 48 | +import static org.graalvm.nativeimage.base.option.CommonOptionParser.BooleanOptionFormat.PLUS_MINUS; |
| 49 | + |
| 50 | +public final class PointsToOptionParser { |
| 51 | + |
| 52 | + private static PointsToOptionParser instance = new PointsToOptionParser(); |
| 53 | + |
| 54 | + private OptionValues optionValues = null; |
| 55 | + private EconomicMap<OptionKey<?>, Object> analysisValues = OptionValues.newOptionMap(); |
| 56 | + private EconomicMap<String, OptionDescriptor> allAnalysisOptions = EconomicMap.create(); |
| 57 | + |
| 58 | + public static PointsToOptionParser getInstance() { |
| 59 | + return instance; |
| 60 | + } |
| 61 | + |
| 62 | + @SuppressWarnings("unchecked") |
| 63 | + private PointsToOptionParser() { |
| 64 | + List<Class<? extends OptionDescriptors>> optionDescriptorsList = new ArrayList<>(); |
| 65 | + try { |
| 66 | + ClassLoader appClassLoader = ClassPathSearcher.class.getClassLoader(); |
| 67 | + // Search the classpath to find out the OptionDescriptors classes |
| 68 | + ClassPathSearcher.search(entryName -> { |
| 69 | + if (entryName.endsWith(".class")) { |
| 70 | + // replace the "/" to "." and remove the ".class" postfix to get the qualified |
| 71 | + // class name |
| 72 | + String className = entryName.replace('/', '.').substring(0, entryName.length() - 6); |
| 73 | + try { |
| 74 | + Class<?> c = Class.forName(className, false, appClassLoader); |
| 75 | + if (OptionDescriptors.class.isAssignableFrom(c)) { |
| 76 | + optionDescriptorsList.add((Class<? extends OptionDescriptors>) c); |
| 77 | + } |
| 78 | + } catch (NoClassDefFoundError | ClassNotFoundException | IllegalAccessError e) { |
| 79 | + // ClassName may be not correct, ignore |
| 80 | + } |
| 81 | + } |
| 82 | + }); |
| 83 | + CommonOptionParser.collectOptions(optionDescriptorsList, descriptor -> { |
| 84 | + String name = descriptor.getName(); |
| 85 | + if (descriptor.getOptionKey() instanceof OptionKey) { |
| 86 | + OptionDescriptor existing = allAnalysisOptions.put(name, descriptor); |
| 87 | + if (existing != null) { |
| 88 | + AnalysisError.shouldNotReachHere("Option name \"" + name + "\" has multiple definitions: " + existing.getLocation() + " and " + descriptor.getLocation()); |
| 89 | + } |
| 90 | + } |
| 91 | + }); |
| 92 | + } catch (OptionParsingException e) { |
| 93 | + AnalysisError.shouldNotReachHere(e); |
| 94 | + } |
| 95 | + } |
| 96 | + |
| 97 | + public void setOptionValue(OptionKey<?> optionKey, Object value) { |
| 98 | + if (optionValues == null) { |
| 99 | + parse(new String[0]); |
| 100 | + } |
| 101 | + optionKey.update((EconomicMap<OptionKey<?>, Object>) optionValues.getMap(), value); |
| 102 | + } |
| 103 | + |
| 104 | + public OptionValues parse(String[] args) { |
| 105 | + List<String> remainingArgs = new ArrayList<>(); |
| 106 | + Set<String> errors = new HashSet<>(); |
| 107 | + for (String arg : args) { |
| 108 | + boolean isAnalysisOption = false; |
| 109 | + isAnalysisOption |= parseOption(CommonOptionParser.HOSTED_OPTION_PREFIX, allAnalysisOptions, analysisValues, PLUS_MINUS, errors, arg, System.out); |
| 110 | + if (!isAnalysisOption) { |
| 111 | + remainingArgs.add(arg); |
| 112 | + } |
| 113 | + } |
| 114 | + optionValues = new OptionValues(analysisValues); |
| 115 | + if (!remainingArgs.isEmpty()) { |
| 116 | + AnalysisError.interruptAnalysis(String.format("Unknown options: %s", Arrays.toString(remainingArgs.toArray(new String[0])))); |
| 117 | + } |
| 118 | + if (!errors.isEmpty()) { |
| 119 | + StringBuilder errMsg = new StringBuilder("Option format error:\n"); |
| 120 | + for (String err : errors) { |
| 121 | + errMsg.append(err).append("\n"); |
| 122 | + } |
| 123 | + AnalysisError.interruptAnalysis(errMsg.toString()); |
| 124 | + } |
| 125 | + return optionValues; |
| 126 | + } |
| 127 | + |
| 128 | + private static boolean parseOption(String optionPrefix, EconomicMap<String, OptionDescriptor> options, EconomicMap<OptionKey<?>, Object> valuesMap, |
| 129 | + BooleanOptionFormat booleanOptionFormat, Set<String> errors, String arg, PrintStream out) { |
| 130 | + if (!arg.startsWith(optionPrefix)) { |
| 131 | + return false; |
| 132 | + } |
| 133 | + try { |
| 134 | + Predicate<OptionKey<?>> optionKeyPredicate = optionKey -> { |
| 135 | + Class<?> clazz = optionKey.getClass(); |
| 136 | + // All classes from com.oracle.graal.pointsto.api.PointstoOptions are taken as non-hosted options. |
| 137 | + if (clazz.getName().startsWith("com.oracle.graal.pointsto.api.PointstoOptions")) { |
| 138 | + return false; |
| 139 | + } |
| 140 | + if (!clazz.equals(OptionKey.class) && OptionKey.class.isAssignableFrom(clazz)) { |
| 141 | + return true; |
| 142 | + } else { |
| 143 | + return false; |
| 144 | + } |
| 145 | + }; |
| 146 | + OptionParseResult optionParseResult = CommonOptionParser.parseOption(options, optionKeyPredicate, arg.substring(optionPrefix.length()), valuesMap, |
| 147 | + optionPrefix, booleanOptionFormat); |
| 148 | + if (optionParseResult.printFlags() || optionParseResult.printFlagsWithExtraHelp()) { |
| 149 | + CommonOptionParser.printFlags(d -> optionParseResult.matchesFlags(d, () -> true), options, optionPrefix, out, optionParseResult.printFlagsWithExtraHelp()); |
| 150 | + System.out.println("Abort analysis due to print flags are requested"); |
| 151 | + System.exit(1); |
| 152 | + } |
| 153 | + if (!optionParseResult.isValid()) { |
| 154 | + errors.add(optionParseResult.getError()); |
| 155 | + } |
| 156 | + } catch (UnsupportedOptionClassException e) { |
| 157 | + AnalysisError.shouldNotReachHere(e); |
| 158 | + } |
| 159 | + return true; |
| 160 | + } |
| 161 | +} |
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