/* * Copyright (C) 2011 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. */ public class StackWalk2 { // use v1 for this String str = new String(); // use v0 for str in <init> int f() { g(1); // use v0 for 1, v1 for this g(2); // use v0 for 2, v1 for this strTest(); // use v1 for this return 0; } void g(int num_calls) throws RuntimeException { if (num_calls == 1) { // use v0 for 1, v3 for num_calls System.logI("1st call"); // use v0 for PrintStream, v1 for "1st call" refmap2(24); // use v0 for 24, v2 for this } else if (num_calls == 2) { // use v0 for 2, v3 for num_calls System.logI("2nd call"); // use v0 for PrintStream, v1 for "2nd call" refmap2(25); // use v0 for 24, v2 for this } throw new RuntimeException(); // use v0 for new RuntimeException } void strTest() { System.logI(str); // use v1 for PrintStream, v2, v3 for str str = null; // use v1 for null, v3 for str str = new String("ya"); // use v2 for "ya", v1 for new String String s = str; // use v0, v1, v3 System.logI(str); // use v1 for PrintStream, v2, v3 for str System.logI(s); // use v1 for PrintStream, v0 for s s = null; // use v0 System.logI(s); // use v1 for PrintStream, v0 for s } native int refmap2(int x); public static void main(String[] args) { System.loadLibrary(args[0]); StackWalk2 st = new StackWalk2(); st.f(); } }