Mercurial > hg > truffle
diff test/runtime/7107135/Test.java @ 8710:9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
Summary: Detect the execstack attribute of the loaded library and attempt to fix the stack guard using Safepoint op.
Reviewed-by: dholmes, zgu
Contributed-by: ioi.lam@oracle.com
author | iklam |
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date | Tue, 05 Mar 2013 13:55:56 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/runtime/7107135/Test.java Tue Mar 05 13:55:56 2013 -0800 @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2002-2013, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2011 SAP AG. 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. + */ + +class Test { + + static boolean loadLib(String libName){ + try { + System.loadLibrary(libName); + System.out.println("Loaded library "+ libName + "."); + return true; + } catch (SecurityException e) { + System.out.println("loadLibrary(\"" + libName + "\") throws: " + e + "\n"); + } catch (UnsatisfiedLinkError e) { + System.out.println("loadLibrary(\"" + libName + "\") throws: " + e + "\n"); + } + return false; + } + + public static int counter = 1; + + static int Runner() { + counter = counter * -1; + int i = counter; + if(counter < 2) counter += Runner(); + return i; + } + + public static int run() { + try{ + Runner(); + } catch (StackOverflowError e) { + System.out.println("Caught stack overflow error."); + return 0; + } catch (OutOfMemoryError e) { + return 0; + } + return 2; + } + + public static void main(String argv[]) { + loadLib(argv[0]); + System.exit(run()); + } +}