Main.java revision 7403503d9ba33463e850b7e87a1b0430372d7003
1d063d912e5580222b1822b152de315420cef49eeJeff Hao/* 2d063d912e5580222b1822b152de315420cef49eeJeff Hao * Copyright (C) 2014 The Android Open Source Project 3d063d912e5580222b1822b152de315420cef49eeJeff Hao * 4d063d912e5580222b1822b152de315420cef49eeJeff Hao * Licensed under the Apache License, Version 2.0 (the "License"); 5d063d912e5580222b1822b152de315420cef49eeJeff Hao * you may not use this file except in compliance with the License. 6d063d912e5580222b1822b152de315420cef49eeJeff Hao * You may obtain a copy of the License at 7d063d912e5580222b1822b152de315420cef49eeJeff Hao * 8d063d912e5580222b1822b152de315420cef49eeJeff Hao * http://www.apache.org/licenses/LICENSE-2.0 9d063d912e5580222b1822b152de315420cef49eeJeff Hao * 10d063d912e5580222b1822b152de315420cef49eeJeff Hao * Unless required by applicable law or agreed to in writing, software 11d063d912e5580222b1822b152de315420cef49eeJeff Hao * distributed under the License is distributed on an "AS IS" BASIS, 12d063d912e5580222b1822b152de315420cef49eeJeff Hao * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d063d912e5580222b1822b152de315420cef49eeJeff Hao * See the License for the specific language governing permissions and 14d063d912e5580222b1822b152de315420cef49eeJeff Hao * limitations under the License. 15d063d912e5580222b1822b152de315420cef49eeJeff Hao */ 16d063d912e5580222b1822b152de315420cef49eeJeff Hao 17d063d912e5580222b1822b152de315420cef49eeJeff Haoimport java.io.File; 18d063d912e5580222b1822b152de315420cef49eeJeff Haoimport java.io.IOException; 19d063d912e5580222b1822b152de315420cef49eeJeff Haoimport java.lang.reflect.Method; 20d063d912e5580222b1822b152de315420cef49eeJeff Hao 21d063d912e5580222b1822b152de315420cef49eeJeff Haopublic class Main { 22d063d912e5580222b1822b152de315420cef49eeJeff Hao public static void main(String[] args) throws Exception { 23d063d912e5580222b1822b152de315420cef49eeJeff Hao String name = System.getProperty("java.vm.name"); 24d063d912e5580222b1822b152de315420cef49eeJeff Hao if (!"Dalvik".equals(name)) { 25d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("This test is not supported on " + name); 26d063d912e5580222b1822b152de315420cef49eeJeff Hao return; 27d063d912e5580222b1822b152de315420cef49eeJeff Hao } 28d063d912e5580222b1822b152de315420cef49eeJeff Hao testMethodTracing(); 29d063d912e5580222b1822b152de315420cef49eeJeff Hao } 30d063d912e5580222b1822b152de315420cef49eeJeff Hao 317403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe private static File createTempFile() throws Exception { 328cf89c4ac6e09f17093ef0f8c35e86dcd2807d98Jeff Hao try { 337403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe return File.createTempFile("test", ".trace"); 348cf89c4ac6e09f17093ef0f8c35e86dcd2807d98Jeff Hao } catch (IOException e) { 357403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe System.setProperty("java.io.tmpdir", "/data/local/tmp"); 367403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe try { 377403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe return File.createTempFile("test", ".trace"); 387403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe } catch (IOException e2) { 397403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe System.setProperty("java.io.tmpdir", "/sdcard"); 407403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe return File.createTempFile("test", ".trace"); 417403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe } 42d063d912e5580222b1822b152de315420cef49eeJeff Hao } 437403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe } 447403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe 457403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe private static void testMethodTracing() throws Exception { 467403503d9ba33463e850b7e87a1b0430372d7003Andreas Gampe File tempFile = createTempFile(); 478cf89c4ac6e09f17093ef0f8c35e86dcd2807d98Jeff Hao tempFile.deleteOnExit(); 488cf89c4ac6e09f17093ef0f8c35e86dcd2807d98Jeff Hao String tempFileName = tempFile.getPath(); 49d063d912e5580222b1822b152de315420cef49eeJeff Hao 50cbe15be6f108da7f56c7cb481d2cbed9c568d35aJeff Hao if (VMDebug.getMethodTracingMode() != 0) { 51cbe15be6f108da7f56c7cb481d2cbed9c568d35aJeff Hao VMDebug.stopMethodTracing(); 52cbe15be6f108da7f56c7cb481d2cbed9c568d35aJeff Hao } 53cbe15be6f108da7f56c7cb481d2cbed9c568d35aJeff Hao 54d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Confirm enable/disable"); 55d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 56d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.startMethodTracing(tempFileName, 0, 0, false, 0); 57d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 58d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.stopMethodTracing(); 59d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 60d063d912e5580222b1822b152de315420cef49eeJeff Hao if (tempFile.length() == 0) { 61d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("ERROR: tracing output file is empty"); 62d063d912e5580222b1822b152de315420cef49eeJeff Hao } 63d063d912e5580222b1822b152de315420cef49eeJeff Hao 64d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Confirm sampling"); 65d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.startMethodTracing(tempFileName, 0, 0, true, 1000); 66d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 67d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.stopMethodTracing(); 68d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 69d063d912e5580222b1822b152de315420cef49eeJeff Hao if (tempFile.length() == 0) { 70d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("ERROR: sample tracing output file is empty"); 71d063d912e5580222b1822b152de315420cef49eeJeff Hao } 72d063d912e5580222b1822b152de315420cef49eeJeff Hao 73d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Test starting when already started"); 74d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.startMethodTracing(tempFileName, 0, 0, false, 0); 75d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 76d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.startMethodTracing(tempFileName, 0, 0, false, 0); 77d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 78d063d912e5580222b1822b152de315420cef49eeJeff Hao 79d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Test stopping when already stopped"); 80d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.stopMethodTracing(); 81d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 82d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.stopMethodTracing(); 83d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("status=" + VMDebug.getMethodTracingMode()); 84d063d912e5580222b1822b152de315420cef49eeJeff Hao 85d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Test tracing with empty filename"); 86d063d912e5580222b1822b152de315420cef49eeJeff Hao try { 87d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.startMethodTracing("", 0, 0, false, 0); 88d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Should have thrown an exception"); 89d063d912e5580222b1822b152de315420cef49eeJeff Hao } catch (Exception e) { 90d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Got expected exception"); 91d063d912e5580222b1822b152de315420cef49eeJeff Hao } 92d063d912e5580222b1822b152de315420cef49eeJeff Hao 93d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Test tracing with bogus (< 1024 && != 0) filesize"); 94d063d912e5580222b1822b152de315420cef49eeJeff Hao try { 95d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.startMethodTracing(tempFileName, 1000, 0, false, 0); 96d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Should have thrown an exception"); 97d063d912e5580222b1822b152de315420cef49eeJeff Hao } catch (Exception e) { 98d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Got expected exception"); 99d063d912e5580222b1822b152de315420cef49eeJeff Hao } 100d063d912e5580222b1822b152de315420cef49eeJeff Hao 101d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Test sampling with bogus (<= 0) interval"); 102d063d912e5580222b1822b152de315420cef49eeJeff Hao try { 103d063d912e5580222b1822b152de315420cef49eeJeff Hao VMDebug.startMethodTracing(tempFileName, 0, 0, true, 0); 104d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Should have thrown an exception"); 105d063d912e5580222b1822b152de315420cef49eeJeff Hao } catch (Exception e) { 106d063d912e5580222b1822b152de315420cef49eeJeff Hao System.out.println("Got expected exception"); 107d063d912e5580222b1822b152de315420cef49eeJeff Hao } 108d063d912e5580222b1822b152de315420cef49eeJeff Hao 109d063d912e5580222b1822b152de315420cef49eeJeff Hao tempFile.delete(); 110d063d912e5580222b1822b152de315420cef49eeJeff Hao } 111d063d912e5580222b1822b152de315420cef49eeJeff Hao 112d063d912e5580222b1822b152de315420cef49eeJeff Hao private static class VMDebug { 113d063d912e5580222b1822b152de315420cef49eeJeff Hao private static final Method startMethodTracingMethod; 114d063d912e5580222b1822b152de315420cef49eeJeff Hao private static final Method stopMethodTracingMethod; 115d063d912e5580222b1822b152de315420cef49eeJeff Hao private static final Method getMethodTracingModeMethod; 116d063d912e5580222b1822b152de315420cef49eeJeff Hao static { 117d063d912e5580222b1822b152de315420cef49eeJeff Hao try { 118d063d912e5580222b1822b152de315420cef49eeJeff Hao Class c = Class.forName("dalvik.system.VMDebug"); 119d063d912e5580222b1822b152de315420cef49eeJeff Hao startMethodTracingMethod = c.getDeclaredMethod("startMethodTracing", String.class, 120d063d912e5580222b1822b152de315420cef49eeJeff Hao Integer.TYPE, Integer.TYPE, Boolean.TYPE, Integer.TYPE); 121d063d912e5580222b1822b152de315420cef49eeJeff Hao stopMethodTracingMethod = c.getDeclaredMethod("stopMethodTracing"); 122d063d912e5580222b1822b152de315420cef49eeJeff Hao getMethodTracingModeMethod = c.getDeclaredMethod("getMethodTracingMode"); 123d063d912e5580222b1822b152de315420cef49eeJeff Hao } catch (Exception e) { 124d063d912e5580222b1822b152de315420cef49eeJeff Hao throw new RuntimeException(e); 125d063d912e5580222b1822b152de315420cef49eeJeff Hao } 126d063d912e5580222b1822b152de315420cef49eeJeff Hao } 127d063d912e5580222b1822b152de315420cef49eeJeff Hao 128d063d912e5580222b1822b152de315420cef49eeJeff Hao public static void startMethodTracing(String filename, int bufferSize, int flags, 129d063d912e5580222b1822b152de315420cef49eeJeff Hao boolean samplingEnabled, int intervalUs) throws Exception { 130d063d912e5580222b1822b152de315420cef49eeJeff Hao startMethodTracingMethod.invoke(null, filename, bufferSize, flags, samplingEnabled, 131d063d912e5580222b1822b152de315420cef49eeJeff Hao intervalUs); 132d063d912e5580222b1822b152de315420cef49eeJeff Hao } 133d063d912e5580222b1822b152de315420cef49eeJeff Hao public static void stopMethodTracing() throws Exception { 134d063d912e5580222b1822b152de315420cef49eeJeff Hao stopMethodTracingMethod.invoke(null); 135d063d912e5580222b1822b152de315420cef49eeJeff Hao } 136d063d912e5580222b1822b152de315420cef49eeJeff Hao public static int getMethodTracingMode() throws Exception { 137d063d912e5580222b1822b152de315420cef49eeJeff Hao return (int) getMethodTracingModeMethod.invoke(null); 138d063d912e5580222b1822b152de315420cef49eeJeff Hao } 139d063d912e5580222b1822b152de315420cef49eeJeff Hao } 140d063d912e5580222b1822b152de315420cef49eeJeff Hao} 141