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annotate graal/com.oracle.graal.hotspot.sourcegen/src/com/oracle/graal/hotspot/sourcegen/GenGraalRuntimeInlineHpp.java @ 21526:1da7aef31a08

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created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 19 May 2015 23:16:07 +0200
parents e1c063565b3c
children c1e2fdb5fea3
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot.sourcegen;
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24
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25 import java.io.*;
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26 import java.lang.reflect.*;
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27 import java.util.*;
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28 import java.util.stream.*;
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29 import java.util.zip.*;
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30
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31 import com.oracle.graal.api.runtime.*;
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32 import com.oracle.graal.compiler.common.*;
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33 import com.oracle.graal.options.*;
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34
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35 /**
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36 * Command line utility for generating the source code of {@code graalRuntime.inline.hpp}. The
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37 * generated code is comprised of:
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38 * <ul>
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39 * <li>{@code -G} command line option parsing {@linkplain #genSetOption(PrintStream) helper}</li>
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40 * </ul>
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41 *
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42 * The purpose of the generated code is to avoid executing Graal related Java code as much as
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43 * possible during initialization of the Graal runtime. Future solutions such as some kind of AOT
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44 * system may make such a mechanism redundant in terms of minimizing Graal's impact on VM startup
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45 * time.
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46 *
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47 * The input for the generation is all classes that implement {@link Service} or contain fields
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48 * annotated by {@link Option}. As such, the code generation process must be executed with a class
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49 * path including all Graal jars that contains such classes. Currently, this is
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50 * {@code graal-truffle.jar}.
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51 */
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52 public class GenGraalRuntimeInlineHpp {
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53
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54 public static class GraalJars implements Iterable<ZipEntry> {
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55 private final List<ZipFile> jars = new ArrayList<>(2);
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56
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57 public GraalJars() {
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58 String classPath = System.getProperty("java.class.path");
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59 for (String e : classPath.split(File.pathSeparator)) {
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60 if (e.endsWith(File.separatorChar + "graal.jar") || e.endsWith(File.separatorChar + "graal-truffle.jar")) {
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61 try {
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62 jars.add(new ZipFile(e));
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63 } catch (IOException ioe) {
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64 throw new InternalError(ioe);
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65 }
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66 }
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67 }
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68 if (jars.size() != 2) {
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69 throw new InternalError("Could not find graal.jar or graal-truffle.jar on class path: " + classPath);
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70 }
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71 }
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72
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73 public Iterator<ZipEntry> iterator() {
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74 Stream<ZipEntry> entries = jars.stream().flatMap(ZipFile::stream);
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75 return entries.iterator();
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76 }
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77
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78 public InputStream getInputStream(String classFilePath) throws IOException {
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79 for (ZipFile jar : jars) {
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80 ZipEntry entry = jar.getEntry(classFilePath);
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81 if (entry != null) {
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82 return jar.getInputStream(entry);
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83 }
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84 }
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85 return null;
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86 }
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87 }
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88
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89 private static final GraalJars graalJars = new GraalJars();
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90
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91 public static void main(String[] args) {
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92 PrintStream out = System.out;
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93 try {
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94 genSetOption(out);
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95 } catch (Throwable t) {
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96 t.printStackTrace(out);
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97 }
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98 out.flush();
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99 }
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100
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101 /**
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102 * Generates code for {@code GraalRuntime::set_option()} and
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103 * {@code GraalRuntime::set_option_bool()}.
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104 */
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105 private static void genSetOption(PrintStream out) throws Exception {
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106 SortedMap<String, OptionDescriptor> options = getOptions();
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107
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108 Set<Integer> lengths = new TreeSet<>();
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109 for (String s : options.keySet()) {
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110 lengths.add(s.length());
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111 }
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112 lengths.add("PrintFlags".length());
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113
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114 out.println("bool GraalRuntime::set_option_bool(KlassHandle hotSpotOptionsClass, char* name, size_t name_len, char value, TRAPS) {");
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115 out.println(" bool check_only = hotSpotOptionsClass.is_null();");
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116 genMatchers(out, lengths, options, true);
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117 out.println(" return false;");
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118 out.println("}");
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119 out.println("bool GraalRuntime::set_option(KlassHandle hotSpotOptionsClass, char* name, size_t name_len, const char* value, TRAPS) {");
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120 out.println(" bool check_only = hotSpotOptionsClass.is_null();");
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121 genMatchers(out, lengths, options, false);
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122 out.println(" return false;");
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123 out.println("}");
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124 }
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125
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126 protected static void genMatchers(PrintStream out, Set<Integer> lengths, SortedMap<String, OptionDescriptor> options, boolean isBoolean) throws Exception {
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127 out.println(" switch (name_len) {");
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128 for (int len : lengths) {
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129 boolean printedCase = false;
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130
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131 // The use of strncmp is required (instead of strcmp) as the option name will not be
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132 // null terminated for <name>=<value> style options.
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133 if (len == "PrintFlags".length() && isBoolean) {
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134 printedCase = true;
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135 out.println(" case " + len + ":");
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136 out.printf(" if (strncmp(name, \"PrintFlags\", %d) == 0) {%n", len);
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137 out.println(" if (value == '+') {");
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138 out.println(" if (check_only) {");
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1da7aef31a08 created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
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139 out.println(" TempNewSymbol name = SymbolTable::new_symbol(\"Lcom/oracle/graal/hotspot/jvmci/HotSpotOptions;\", CHECK_(true));");
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140 out.println(" hotSpotOptionsClass = SystemDictionary::resolve_or_fail(name, true, CHECK_(true));");
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141 out.println(" }");
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142 out.println(" set_option_helper(hotSpotOptionsClass, name, name_len, Handle(), '?', Handle(), 0L);");
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143 out.println(" }");
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144 out.println(" return true;");
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145 out.println(" }");
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146 }
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147 for (Map.Entry<String, OptionDescriptor> e : options.entrySet()) {
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148 OptionDescriptor desc = e.getValue();
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149 if (e.getKey().length() == len && ((desc.getType() == Boolean.class) == isBoolean)) {
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150 if (!printedCase) {
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151 printedCase = true;
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152 out.println(" case " + len + ":");
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153 }
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154 out.printf(" if (strncmp(name, \"%s\", %d) == 0) {%n", e.getKey(), len);
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155 Class<?> declaringClass = desc.getDeclaringClass();
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156 if (isBoolean) {
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157 out.printf(" Handle option = get_OptionValue(\"L%s;\", \"%s\", \"L%s;\", CHECK_(true));%n", toInternalName(declaringClass), desc.getFieldName(),
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158 toInternalName(getFieldType(desc)));
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159 out.println(" if (!check_only) {");
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160 out.println(" set_option_helper(hotSpotOptionsClass, name, name_len, option, value, Handle(), 0L);");
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161 out.println(" }");
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162 } else if (desc.getType() == String.class) {
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163 out.println(" check_required_value(name, name_len, value, CHECK_(true));");
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164 out.printf(" Handle option = get_OptionValue(\"L%s;\", \"%s\", \"L%s;\", CHECK_(true));%n", toInternalName(declaringClass), desc.getFieldName(),
16270
d56a09df1a1f implemented eager checking of Graal options (GRAAL-807)
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165 toInternalName(getFieldType(desc)));
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166 out.println(" if (!check_only) {");
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167 out.println(" Handle stringValue = java_lang_String::create_from_str(value, CHECK_(true));");
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168 out.println(" set_option_helper(hotSpotOptionsClass, name, name_len, option, 's', stringValue, 0L);");
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169 out.println(" }");
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170 } else {
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171 char spec = getPrimitiveSpecChar(desc);
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172 out.println(" jlong primitiveValue = parse_primitive_option_value('" + spec + "', name, name_len, value, CHECK_(true));");
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173 out.println(" if (!check_only) {");
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174 out.printf(" Handle option = get_OptionValue(\"L%s;\", \"%s\", \"L%s;\", CHECK_(true));%n", toInternalName(declaringClass), desc.getFieldName(),
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175 toInternalName(getFieldType(desc)));
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176 out.println(" set_option_helper(hotSpotOptionsClass, name, name_len, option, '" + spec + "', Handle(), primitiveValue);");
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177 out.println(" }");
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178 }
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179 out.println(" return true;");
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180 out.println(" }");
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181 }
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182 }
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183 }
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184 out.println(" }");
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185 }
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186
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187 @SuppressWarnings("unchecked")
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188 static SortedMap<String, OptionDescriptor> getOptions() throws Exception {
21526
1da7aef31a08 created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
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diff changeset
189 Field field = Class.forName("com.oracle.graal.hotspot.jvmci.HotSpotOptionsLoader").getDeclaredField("options");
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190 field.setAccessible(true);
16030
bddb3eb57e90 moved verification of OptionValue declaring classes from run time to build time
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diff changeset
191 SortedMap<String, OptionDescriptor> options = (SortedMap<String, OptionDescriptor>) field.get(null);
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diff changeset
192
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diff changeset
193 Set<Class<?>> checked = new HashSet<>();
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diff changeset
194 for (final OptionDescriptor option : options.values()) {
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diff changeset
195 Class<?> cls = option.getDeclaringClass();
16623
addc0564e5b5 split com.oracle.graal.truffle.* projects into a separate graal-truffle.jar and added truffle.jar to the boot class path
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parents: 16428
diff changeset
196 OptionsVerifier.checkClass(cls, option, checked, graalJars);
16030
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197 }
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198 return options;
15916
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199 }
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200
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diff changeset
201 private static Class<?> getFieldType(OptionDescriptor desc) throws Exception {
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diff changeset
202 return desc.getDeclaringClass().getDeclaredField(desc.getFieldName()).getType();
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203 }
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diff changeset
204
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parents:
diff changeset
205 private static String toInternalName(Class<?> c) {
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parents:
diff changeset
206 return c.getName().replace('.', '/');
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parents:
diff changeset
207 }
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parents:
diff changeset
208
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parents:
diff changeset
209 /**
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parents:
diff changeset
210 * @see HotSpotOptions#setOption(String, OptionValue, char, String, long)
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parents:
diff changeset
211 */
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parents:
diff changeset
212 @SuppressWarnings("javadoc")
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parents:
diff changeset
213 private static char getPrimitiveSpecChar(OptionDescriptor desc) {
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parents:
diff changeset
214 if (desc.getType() == Integer.class) {
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parents:
diff changeset
215 return 'i';
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parents:
diff changeset
216 }
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parents:
diff changeset
217 if (desc.getType() == Float.class) {
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parents:
diff changeset
218 return 'f';
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parents:
diff changeset
219 }
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parents:
diff changeset
220 if (desc.getType() == Double.class) {
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parents:
diff changeset
221 return 'd';
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parents:
diff changeset
222 }
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parents:
diff changeset
223 throw GraalInternalError.shouldNotReachHere("Unexpected primitive option type: " + desc.getType().getName());
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parents:
diff changeset
224 }
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parents:
diff changeset
225 }