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/*
* Copyright (c) 2011, 2012, 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.
*/
/**
* @test
* @bug 7116216
* @summary The vm crashes when GC happens during throwing a StackOverflow exception
* @library /
* @run main/othervm -Xcomp -Xbatch compiler.interpreter.cr7116216.StackOverflow
*/
package compiler.interpreter.cr7116216;
public class StackOverflow {
static String stackOverflow_largeFrame_liveOopForGC;
public static int stackOverflow_largeFrame(int call_count, String liveOopForGC) {
try {
int return_count = stackOverflow_largeFrame(++call_count, liveOopForGC);
if (return_count == 0) {
try {
LargeFrame.method_with_many_locals(liveOopForGC, 2,3,4,5,6,7,liveOopForGC);
} catch (StackOverflowError e2) {
// access liveOopForGC to make it a live variable
stackOverflow_largeFrame_liveOopForGC = liveOopForGC;
}
}
return return_count - 1;
} catch (StackOverflowError e) {
// Return a value that is large enough such that no unrecoverable
// stack overflow will occur afterwards, but that is small enough
// such that calling LargeFrame.method_with_many_locals() will
// cause a StackOverflowError.
// Don't use a call here because we're out of stack space anyway!
int tmp = call_count / 2;
return (tmp < 100 ? tmp : 100);
}
}
public static void main(String args[]) {
LargeFrame.method_with_many_locals(new Object(), 2,3,4,5,6,7,new Object());
stackOverflow_largeFrame(0, "this is a live oop to test GC");
System.out.println("finished ok!");
}
}
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