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