/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.io.File;
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import java.io.IOException;
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import java.lang.reflect.Method;
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public class Main {
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public static void main(String[] args) throws Exception {
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System.loadLibrary(args[0]);
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File file = null;
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try {
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file = createTempFile();
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// String codePath = getDexBaseLocation();
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String codePath = System.getenv("DEX_LOCATION") + "/595-profile-saving.jar";
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VMRuntime.registerAppInfo(file.getPath(),
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new String[] {codePath});
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// Test that the profile saves an app method with a profiling info.
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Method appMethod = Main.class.getDeclaredMethod("testAddMethodToProfile",
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File.class, Method.class);
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testAddMethodToProfile(file, appMethod);
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// Test that the profile saves a boot class path method with a profiling info.
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Method bootMethod = File.class.getDeclaredMethod("delete");
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if (bootMethod.getDeclaringClass().getClassLoader() != Object.class.getClassLoader()) {
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System.out.println("Class loader does not match boot class");
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}
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testAddMethodToProfile(file, bootMethod);
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} finally {
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if (file != null) {
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file.delete();
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}
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}
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}
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static void testAddMethodToProfile(File file, Method m) {
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// Make sure we have a profile info for this method without the need to loop.
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ensureProfilingInfo(m);
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// Make sure the profile gets saved.
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ensureProfileProcessing();
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// Verify that the profile was saved and contains the method.
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if (!presentInProfile(file.getPath(), m)) {
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throw new RuntimeException("Method with index " + m + " not in the profile");
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}
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}
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// Ensure a method has a profiling info.
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public static native void ensureProfilingInfo(Method method);
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// Ensures the profile saver does its usual processing.
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public static native void ensureProfileProcessing();
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// Checks if the profiles saver knows about the method.
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public static native boolean presentInProfile(String profile, Method method);
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private static final String TEMP_FILE_NAME_PREFIX = "dummy";
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private static final String TEMP_FILE_NAME_SUFFIX = "-file";
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static native String getProfileInfoDump(
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String filename);
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private static File createTempFile() throws Exception {
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try {
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return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
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} catch (IOException e) {
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System.setProperty("java.io.tmpdir", "/data/local/tmp");
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try {
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return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
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} catch (IOException e2) {
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System.setProperty("java.io.tmpdir", "/sdcard");
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return File.createTempFile(TEMP_FILE_NAME_PREFIX, TEMP_FILE_NAME_SUFFIX);
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}
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}
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}
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private static class VMRuntime {
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private static final Method registerAppInfoMethod;
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static {
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try {
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Class<? extends Object> c = Class.forName("dalvik.system.VMRuntime");
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registerAppInfoMethod = c.getDeclaredMethod("registerAppInfo",
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String.class, String[].class);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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public static void registerAppInfo(String profile, String[] codePaths)
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throws Exception {
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registerAppInfoMethod.invoke(null, profile, codePaths);
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}
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}
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}
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