test/hotspot/jtreg/runtime/Unsafe/RangeCheck.java
changeset 47216 71c04702a3d5
parent 41092 c388d897472d
child 50407 3dfdcca00ecc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/Unsafe/RangeCheck.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2014, 2016, 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 8001071
+ * @summary Add simple range check into VM implemenation of Unsafe access methods
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ *          java.management
+ */
+
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.Platform;
+
+import jdk.internal.misc.Unsafe;
+
+public class RangeCheck {
+
+    public static void main(String args[]) throws Exception {
+        if (!Platform.isDebugBuild()) {
+            System.out.println("Testing assert which requires a debug build. Passing silently.");
+            return;
+        }
+
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+                true,
+                "-Xmx32m",
+                "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",
+                "-XX:-TransmitErrorReport",
+                "-XX:-CreateCoredumpOnCrash",
+                "-XX:-InlineUnsafeOps", // The compiler intrinsics doesn't have the assert
+                DummyClassWithMainRangeCheck.class.getName());
+
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldMatch("assert\\(byte_offset < p_size\\) failed: Unsafe access: offset \\d+ > object's size \\d+");
+    }
+
+    public static class DummyClassWithMainRangeCheck {
+        public static void main(String args[]) throws Exception {
+            Unsafe unsafe = Unsafe.getUnsafe();
+            unsafe.getObject(new DummyClassWithMainRangeCheck(), Short.MAX_VALUE);
+        }
+    }
+}