hotspot/test/runtime/SharedArchiveFile/SASymbolTableTest.java
changeset 37995 92aec042a43b
child 39696 80c9894e18f9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/SASymbolTableTest.java	Sun Apr 17 19:15:52 2016 -0700
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 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 SASymbolTableTest
+ * @summary Walk symbol table using SA, with and without CDS.
+ * @library /testlibrary
+ * @modules java.base/jdk.internal.misc
+ *          jdk.hotspot.agent/sun.jvm.hotspot.oops
+ *          jdk.hotspot.agent/sun.jvm.hotspot.memory
+ *          jdk.hotspot.agent/sun.jvm.hotspot.runtime
+ *          jdk.hotspot.agent/sun.jvm.hotspot.tools
+ *          java.management
+ * @build SASymbolTableTestAgent SASymbolTableTestAttachee jdk.test.lib.*
+ * @run main SASymbolTableTest
+ */
+
+import jdk.test.lib.*;
+
+/*
+ * The purpose of this test is to validate that we can use SA to
+ * attach a process and walk its SymbolTable, regardless whether
+ * the attachee process runs in CDS mode or not.
+ *
+ * SASymbolTableTest Just sets up the agent and attachee processes.
+ * The SymbolTable walking is done in the SASymbolTableTestAgent class.
+ */
+public class SASymbolTableTest {
+    static String jsaName = "./SASymbolTableTest.jsa";
+
+    public static void main(String[] args) throws Exception {
+        if (!Platform.shouldSAAttach()) {
+            System.out.println("SA attach not expected to work - test skipped.");
+            return;
+        }
+        createArchive();
+        run(true);
+        run(false);
+    }
+
+    private static void createArchive()  throws Exception {
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=" + jsaName,
+            "-Xshare:dump");
+
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Loading classes to share");
+        output.shouldHaveExitValue(0);
+    }
+
+    private static void run(boolean useArchive) throws Exception {
+        String flag = useArchive ? "auto" : "off";
+
+        // (1) Launch the attachee process
+        ProcessBuilder attachee = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=" + jsaName,
+            "-Xshare:" + flag,
+            "-showversion",                // so we can see "sharing" in the output
+            "SASymbolTableTestAttachee");
+
+        final Process p = attachee.start();
+
+        // (2) Launch the agent process
+        long pid = p.getPid();
+        System.out.println("Attaching agent " + pid);
+        ProcessBuilder tool = ProcessTools.createJavaProcessBuilder(
+            "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED",
+            "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.memory=ALL-UNNAMED",
+            "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.runtime=ALL-UNNAMED",
+            "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.tools=ALL-UNNAMED",
+            "SASymbolTableTestAgent",
+            Long.toString(pid));
+        OutputAnalyzer output = ProcessTools.executeProcess(tool);
+        System.out.println(output.getOutput());
+        output.shouldHaveExitValue(0);
+
+        Thread t = new Thread() {
+                public void run() {
+                    try {
+                        OutputAnalyzer output = new OutputAnalyzer(p);
+                        System.out.println("STDOUT[");
+                        System.out.print(output.getStdout());
+                        System.out.println("]");
+                        System.out.println("STDERR[");
+                        System.out.print(output.getStderr());
+                        System.out.println("]");
+                    } catch (Throwable t) {
+                        t.printStackTrace();
+                    }
+                }
+            };
+        t.start();
+
+        Thread.sleep(2 * 1000);
+        p.destroy();
+        t.join();
+    }
+}