From 086a66a0cd9fae4855693a75513e77f9942f7567 Mon Sep 17 00:00:00 2001
From: Vipin Sharma <vsharma@openjdk.org>
Date: Wed, 17 Mar 2021 08:30:53 +0000
Subject: [PATCH] 8261095: Add test for clhsdb "symbol" command
Reviewed-by: cjplummer, ysuenaga
---
.../jtreg/serviceability/sa/ClhsdbSymbol.java | 104 ++++++++++++++++++
1 file changed, 104 insertions(+)
create mode 100644 test/hotspot/jtreg/serviceability/sa/ClhsdbSymbol.java
diff --git a/test/hotspot/jtreg/serviceability/sa/ClhsdbSymbol.java b/test/hotspot/jtreg/serviceability/sa/ClhsdbSymbol.java
new file mode 100644
index 00000000000..bb7822c00d4
--- /dev/null
+++ b/test/hotspot/jtreg/serviceability/sa/ClhsdbSymbol.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2021, 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.
+ */
+
+import jdk.test.lib.apps.LingeredApp;
+import jtreg.SkippedException;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @test
+ * @bug 8261095
+ * @summary Test the clhsdb 'symbol' command on live process
+ * @requires vm.hasSA
+ * @library /test/lib
+ * @run main/othervm ClhsdbSymbol
+ */
+
+public class ClhsdbSymbol {
+
+ public static void main(String[] args) throws Exception {
+ System.out.println("Starting the ClhsdbSymbol test");
+ LingeredApp theApp = null;
+
+ try {
+ List<String> cmds = null;
+ String cmdStr = null;
+ Map<String, List<String>> expStrMap = null;
+ ClhsdbLauncher test = new ClhsdbLauncher();
+ theApp = LingeredApp.startApp();
+ System.out.println("Started LingeredApp with pid " + theApp.getPid());
+
+ // Use command "class java.lang.Thread" to get the address of the InstanceKlass for java.lang.Thread
+ cmdStr = "class java.lang.Thread";
+ cmds = List.of(cmdStr);
+ expStrMap = new HashMap<>();
+ expStrMap.put(cmdStr, List.of("java/lang/Thread"));
+ String classOutput = test.run(theApp.getPid(), cmds, expStrMap, null);
+
+ // Extract the thread InstanceKlass address from the output, which looks similar to the following:
+ // java/lang/Thread @0x000000080001d940
+ String threadAddress = classOutput.lines()
+ .filter(part -> part.startsWith("java/lang/Thread"))
+ .map(part -> part.split(" @"))
+ .findFirst()
+ .map(addresses -> addresses[1])
+ .orElseThrow(() -> new RuntimeException(
+ "Cannot find address of the InstanceKlass for java.lang.Thread in output"));
+
+
+ // Use "inspect" on the thread address we extracted in the previous step
+ cmdStr = "inspect " + threadAddress;
+ cmds = List.of(cmdStr);
+ expStrMap = new HashMap<>();
+ expStrMap.put(cmdStr, List.of("Symbol"));
+ String inspectOutput = test.run(theApp.getPid(), cmds, expStrMap, null);
+
+ // The inspect command output will have one line of output that looks like the following.
+ // Symbol* Klass::_name: Symbol @ 0x0000000800471120
+ // Extract the Symbol address from it.
+ String symbolAddress = inspectOutput.lines()
+ .filter(part -> part.startsWith("Symbol"))
+ .map(part -> part.split("@ "))
+ .findFirst().map(symbolParts -> symbolParts[1])
+ .orElseThrow(() -> new RuntimeException("Cannot find address with Symbol instance"));
+
+ // Run "symbol" command on the Symbol instance address extracted in the previous step.
+ // It should produce the symbol for java/lang/Thread.
+ cmdStr = "symbol " + symbolAddress;
+ cmds = List.of(cmdStr);
+ expStrMap = new HashMap<>();
+ expStrMap.put(cmdStr, List.of("#java/lang/Thread"));
+ test.run(theApp.getPid(), cmds, expStrMap, null);
+ } catch (SkippedException se) {
+ throw se;
+ } catch (Exception ex) {
+ throw new RuntimeException("Test ERROR " + ex, ex);
+ } finally {
+ LingeredApp.stopApp(theApp);
+ }
+ System.out.println("Test PASSED");
+ }
+}