diff test/runtime/memory/ReadFromNoaccessArea.java @ 13053:9d8b29a0548c

8027237: New tests on ReservedSpace/VirtualSpace classes Summary: Three tests added: 1) test stressing VirtualSpace by resizing it constantly 2) test running unit tests in several threads 3) test checking protected area in ReservedHeapSpace class Reviewed-by: stefank, zgu Contributed-by: aleksey.timofeev@oracle.com
author mgerdin
date Fri, 08 Nov 2013 16:48:21 +0100
parents
children e567d5afd4dd
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/runtime/memory/ReadFromNoaccessArea.java	Fri Nov 08 16:48:21 2013 +0100
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+/*
+ * Copyright (c) 2013, 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
+ * @summary Test that touching noaccess area in class ReservedHeapSpace results in SIGSEGV/ACCESS_VIOLATION
+ * @library /testlibrary /testlibrary/whitebox
+ * @build ReadFromNoaccessArea
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main ReadFromNoaccessArea
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.hotspot.WhiteBox;
+
+public class ReadFromNoaccessArea {
+
+  public static void main(String args[]) throws Exception {
+    if (!Platform.is64bit()) {
+      System.out.println("ReadFromNoaccessArea tests is useful only on 64bit architecture. Passing silently.");
+      return;
+    }
+
+    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+          "-Xbootclasspath/a:.",
+          "-XX:+UnlockDiagnosticVMOptions",
+          "-XX:+WhiteBoxAPI",
+          "-XX:+UseCompressedOops",
+          "-XX:HeapBaseMinAddress=33G",
+          DummyClassWithMainTryingToReadFromNoaccessArea.class.getName());
+
+    OutputAnalyzer output = new OutputAnalyzer(pb.start());
+    System.out.println("******* Printing stdout for analysis in case of failure *******");
+    System.out.println(output.getStdout());
+    System.out.println("******* Printing stderr for analysis in case of failure *******");
+    System.out.println(output.getStderr());
+    System.out.println("***************************************************************");
+    if (output.getStdout() != null && output.getStdout().contains("WB_ReadFromNoaccessArea method is useless")) {
+      // Test conditions broken. There is no protected page in ReservedHeapSpace in these circumstances. Silently passing test.
+      return;
+    }
+    if (Platform.isWindows()) {
+      output.shouldContain("EXCEPTION_ACCESS_VIOLATION");
+    } else if (Platform.isOSX()) {
+      output.shouldContain("SIGBUS");
+    } else {
+      output.shouldContain("SIGSEGV");
+    }
+  }
+
+  public static class DummyClassWithMainTryingToReadFromNoaccessArea {
+
+    // This method calls whitebox method reading from noaccess area
+    public static void main(String args[]) throws Exception {
+      WhiteBox.getWhiteBox().readFromNoaccessArea();
+      throw new Exception("Call of readFromNoaccessArea succeeded! This is wrong. Crash expected. Test failed.");
+    }
+  }
+
+}