b52c5bbd67
Implement stack walking using javaVFrame instead of vframeStream Reviewed-by: mchung, vlivanov
62 lines
2.6 KiB
Java
62 lines
2.6 KiB
Java
/*
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* Copyright (c) 2016 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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/*
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* @test
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* @bug 8147039
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* @summary Confirm locals[] always has expected length, even for "dead" locals
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* @compile LocalsAndOperands.java
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* @run testng/othervm -Xcomp CountLocalSlots
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*/
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import org.testng.annotations.Test;
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import java.lang.StackWalker.StackFrame;
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public class CountLocalSlots {
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final static boolean debug = true;
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@Test(dataProvider = "provider", dataProviderClass = LocalsAndOperands.class)
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public void countLocalSlots(StackFrame... frames) {
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for (StackFrame frame : frames) {
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if (debug) {
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System.out.println("Running countLocalSlots");
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LocalsAndOperands.dumpStackWithLocals(frames);
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}
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// Confirm expected number of locals
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String methodName = frame.getMethodName();
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Integer expectedObj = (Integer) LocalsAndOperands.Tester.NUM_LOCALS.get(methodName);
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if (expectedObj == null) {
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if (!debug) { LocalsAndOperands.dumpStackWithLocals(frames); }
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throw new RuntimeException("No NUM_LOCALS entry for " +
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methodName + "(). Update test?");
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}
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Object[] locals = (Object[]) LocalsAndOperands.invokeGetLocals(frame);
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if (locals.length != expectedObj) {
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if (!debug) { LocalsAndOperands.dumpStackWithLocals(frames); }
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throw new RuntimeException(methodName + "(): number of locals (" +
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locals.length + ") did not match expected (" + expectedObj + ")");
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}
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}
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}
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}
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