1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.performanceLaunch; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.content.ComponentName; 22 import android.content.Intent; 23 import android.os.Bundle; 24 import android.os.Process; 25 import android.util.Log; 26 import java.io.File; 27 import java.io.InputStream; 28 import java.io.IOException; 29 import java.lang.ProcessBuilder; 30 31 public class DispatchActivity extends Activity { 32 33 private static final String TAG = "DispatchActivity"; 34 private Context mContext; 35 private Bundle mExtras; 36 private Intent mIntent; 37 private String mActivityName; 38 private String mSimpleperfBin; 39 private String mSimpleperfEvt; 40 private String mSimpleperfDir; 41 private String mPackageName; 42 private int mPid; 43 44 @Override onCreate(Bundle savedInstanceState)45 protected void onCreate(Bundle savedInstanceState) { 46 super.onCreate(savedInstanceState); 47 mExtras = getIntent().getExtras(); 48 if (mExtras != null) { 49 mActivityName = mExtras.getString("ACTIVITY_NAME"); 50 mSimpleperfBin = mExtras.getString("SIMPLEPERF_BIN"); 51 mSimpleperfEvt = mExtras.getString("SIMPLEPERF_EVT"); 52 mSimpleperfDir = mExtras.getString("SIMPLEPERF_DIR"); 53 if (mSimpleperfBin == null || mSimpleperfBin.isEmpty()) { 54 mSimpleperfBin = "/system/xbin/simpleperf"; 55 } 56 if (mSimpleperfEvt == null || mSimpleperfEvt.isEmpty()) { 57 mSimpleperfEvt = "cpu-cycles,instructions:k,instructions:u"; 58 } 59 if (mSimpleperfDir == null || mSimpleperfDir.isEmpty()) { 60 mSimpleperfDir = "/sdcard/perf_simpleperf"; 61 } 62 mPackageName = getApplicationContext().getPackageName(); 63 mContext = getApplicationContext(); 64 65 ComponentName cn = new ComponentName(mPackageName, mActivityName); 66 mIntent = new Intent(Intent.ACTION_MAIN); 67 mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 68 mIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); 69 mIntent.setComponent(cn); 70 } 71 72 try { 73 mPid = android.os.Process.myPid(); 74 ProcessBuilder simpleperf = 75 new ProcessBuilder(mSimpleperfBin, "stat", "--group", 76 mSimpleperfEvt, "-p", String.valueOf(mPid)); 77 78 simpleperf.redirectOutput(new File(String.format("%s/%s.%s", 79 mSimpleperfDir, "perf.data", String.valueOf(mPid)))); 80 simpleperf.start(); 81 82 } catch (Exception e) { 83 Log.v(TAG, "simpleperf throw exception"); 84 e.printStackTrace(); 85 } 86 87 startActivity(mIntent); 88 } 89 90 @Override onDestroy()91 protected void onDestroy() { 92 super.onDestroy(); 93 try { 94 Runtime.getRuntime().exec("pkill -l SIGINT simpleperf").waitFor(); 95 } catch (Exception e) { 96 Log.v(TAG, "Failed to stop simpleperf"); 97 e.printStackTrace(); 98 } 99 } 100 } 101