1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8193373
  27  * @summary Test reading ELF info direct from underlaying file
  28  * @requires (os.family == "linux")
  29  * @modules java.base/jdk.internal.misc
  30  * @library /test/lib
  31  * @build sun.hotspot.WhiteBox
  32  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  33  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail TestElfDirectRead
  35  */
  36 
  37 import jdk.test.lib.process.ProcessTools;
  38 import jdk.test.lib.process.OutputAnalyzer;
  39 import jdk.test.lib.JDKToolFinder;
  40 import sun.hotspot.WhiteBox;
  41 
  42 public class TestElfDirectRead {
  43   public static void main(String args[]) throws Exception {
  44     WhiteBox wb = WhiteBox.getWhiteBox();
  45     wb.disableElfSectionCache();
  46     ProcessBuilder pb = new ProcessBuilder();
  47     OutputAnalyzer output;
  48     // Grab my own PID
  49     String pid = Long.toString(ProcessTools.getProcessId());
  50 
  51     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"});
  52     output = new OutputAnalyzer(pb.start());
  53     // This is a pre-populated stack frame, should always exist if can decode
  54     output.shouldContain("MallocSiteTable::new_entry");
  55   }
  56 }
  57