hotspot/test/runtime/modules/ImageFile/ImageGetDataAddressTest.java
changeset 31608 b5cb9a07591a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/modules/ImageFile/ImageGetDataAddressTest.java	Thu Jun 25 18:25:19 2015 +0200
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2015, 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 accessing the data address of a jimage. This only makes sense when the
+ * entire jimage is mapped into memory.
+ * @test ImageGetDataAddressTest
+ * @summary Unit test for JVM_ImageGetDataAddress() method
+ * @library /testlibrary /../../test/lib
+ * @build ImageGetDataAddressTest
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ *                              sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:+MemoryMapImage ImageGetDataAddressTest +
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:-MemoryMapImage ImageGetDataAddressTest -
+ */
+
+import java.io.File;
+import java.nio.ByteOrder;
+import sun.hotspot.WhiteBox;
+import static jdk.test.lib.Asserts.*;
+
+public class ImageGetDataAddressTest {
+
+    public static final WhiteBox wb = WhiteBox.getWhiteBox();
+
+    public static void main(String... args) throws Exception {
+        String javaHome = System.getProperty("java.home");
+        String imageFile = javaHome + File.separator + "lib" + File.separator
+                + "modules" + File.separator + "bootmodules.jimage";
+
+        if (!(new File(imageFile)).exists()) {
+            System.out.printf("Test skipped.");
+            return;
+        }
+
+        boolean isMMap = args[0].equals("+");
+
+        boolean bigEndian = ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN;
+        long id = wb.imageOpenImage(imageFile, bigEndian);
+
+        // get data for valid id
+        long dataAddr = wb.imageGetDataAddress(id);
+        assertFalse((dataAddr == 0) && isMMap, "Failed. Data address is " + dataAddr + " for valid id\n");
+
+        // get data for invalid id == 0
+        dataAddr = wb.imageGetDataAddress(0);
+        assertTrue(dataAddr == 0, "Failed. Data address is " + dataAddr + " for zero id\n");
+
+        wb.imageCloseImage(id);
+    }
+}