| /* |
| * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package nsk.jvmti.SingleStep; |
| |
| import java.io.*; |
| |
| import nsk.share.*; |
| import nsk.share.jvmti.*; |
| |
| /** |
| * This test exercises the JVMTI event <code>SingleStep</code>. |
| * <br>It verifies that no single step event will be generated from |
| * within native methods.<br> |
| * The test works as follows. Breakpoint is set at special method |
| * <code>bpMethod()</code>. Upon reaching the breakpoint, agent |
| * enables <code>SingleStep</code> event generation and checks the |
| * events. The java part calls native method <code>nativeMethod()</code> |
| * which calls another native <code>anotherNativeMethod()</code> |
| * in order to provoke the SingleStep events from within native |
| * methods. When <code>bpMethod()</code> is leaved and accordingly, |
| * the program returns to the calling method <code>runThis()</code>, |
| * the agent disables the event generation. |
| */ |
| public class singlestep003 { |
| static { |
| try { |
| System.loadLibrary("singlestep003"); |
| } catch (UnsatisfiedLinkError ule) { |
| System.err.println("Could not load \"singlestep003\" library"); |
| System.err.println("java.library.path:" |
| + System.getProperty("java.library.path")); |
| throw ule; |
| } |
| } |
| |
| native void nativeMethod(); |
| native void anotherNativeMethod(int i); |
| |
| native int check(); |
| |
| public static void main(String[] argv) { |
| argv = nsk.share.jvmti.JVMTITest.commonInit(argv); |
| |
| // produce JCK-like exit status |
| System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); |
| } |
| |
| public static int run(String argv[], PrintStream out) { |
| return new singlestep003().runThis(argv, out); |
| } |
| |
| private int runThis(String argv[], PrintStream out) { |
| ArgumentHandler argHandler = new ArgumentHandler(argv); |
| Log log = new Log(out, argHandler); |
| |
| log.display("\nReaching a breakpoint method ...\n"); |
| bpMethod(); |
| log.display("The breakpoint method leaved ..."); |
| |
| return check(); |
| } |
| |
| /** |
| * dummy method used to reach breakpoint, enable the SingleStep |
| * event in the agent and provoke SingleStep for native method |
| */ |
| private void bpMethod() { |
| nativeMethod(); |
| } |
| } |