auto import from //depot/cupcake/@135843
diff --git a/tools/preload/WritePreloadedClassFile.java b/tools/preload/WritePreloadedClassFile.java
new file mode 100644
index 0000000..d87b1f0
--- /dev/null
+++ b/tools/preload/WritePreloadedClassFile.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.BufferedWriter;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.TreeSet;
+
+/**
+ * Writes /frameworks/base/preloaded-classes. Also updates LoadedClass.preloaded
+ * fields and writes over compiled log file.
+ */
+public class WritePreloadedClassFile {
+
+ public static void main(String[] args) throws IOException, ClassNotFoundException {
+
+ // Process command-line arguments first
+ List<String> wiredProcesses = new ArrayList<String>();
+ String inputFileName = null;
+ int argOffset = 0;
+ try {
+ while ("--preload-all-process".equals(args[argOffset])) {
+ argOffset++;
+ wiredProcesses.add(args[argOffset++]);
+ }
+
+ inputFileName = args[argOffset++];
+ } catch (RuntimeException e) {
+ System.err.println("Usage: WritePreloadedClassFile " +
+ "[--preload-all-process process-name] " +
+ "[compiled log file]");
+ System.exit(0);
+ }
+
+ Root root = Root.fromFile(inputFileName);
+
+ for (LoadedClass loadedClass : root.loadedClasses.values()) {
+ loadedClass.preloaded = false;
+ }
+
+ Writer out = new BufferedWriter(new OutputStreamWriter(
+ new FileOutputStream(Policy.getPreloadedClassFileName()),
+ Charset.forName("US-ASCII")));
+
+ out.write("# Classes which are preloaded by com.android.internal.os.ZygoteInit.\n");
+ out.write("# Automatically generated by /frameworks/base/tools/preload.\n");
+ out.write("# percent=" + Proc.PERCENTAGE_TO_PRELOAD + ", weight="
+ + ClassRank.SEQUENCE_WEIGHT
+ + ", bucket_size=" + ClassRank.BUCKET_SIZE
+ + "\n");
+ for (String wiredProcess : wiredProcesses) {
+ out.write("# forcing classes loaded by: " + wiredProcess + "\n");
+ }
+
+ Set<LoadedClass> highestRanked = new TreeSet<LoadedClass>();
+ for (Proc proc : root.processes.values()) {
+ // test to see if this is one of the wired-down ("take all classes") processes
+ boolean isWired = wiredProcesses.contains(proc.name);
+
+ List<LoadedClass> highestForProc = proc.highestRankedClasses(isWired);
+
+ System.out.println(proc.name + ": " + highestForProc.size());
+
+ for (LoadedClass loadedClass : highestForProc) {
+ loadedClass.preloaded = true;
+ }
+ highestRanked.addAll(highestForProc);
+ }
+
+ for (LoadedClass loadedClass : highestRanked) {
+ out.write(loadedClass.name);
+ out.write('\n');
+ }
+
+ out.close();
+
+ System.out.println(highestRanked.size()
+ + " classes will be preloaded.");
+
+ // Update data to reflect LoadedClass.preloaded changes.
+ root.toFile(inputFileName);
+ }
+}