gtriantafill@7156: /*
gtriantafill@7156:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
gtriantafill@7156:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
gtriantafill@7156:  *
gtriantafill@7156:  * This code is free software; you can redistribute it and/or modify it
gtriantafill@7156:  * under the terms of the GNU General Public License version 2 only, as
gtriantafill@7156:  * published by the Free Software Foundation.
gtriantafill@7156:  *
gtriantafill@7156:  * This code is distributed in the hope that it will be useful, but WITHOUT
gtriantafill@7156:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
gtriantafill@7156:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
gtriantafill@7156:  * version 2 for more details (a copy is included in the LICENSE file that
gtriantafill@7156:  * accompanied this code).
gtriantafill@7156:  *
gtriantafill@7156:  * You should have received a copy of the GNU General Public License version
gtriantafill@7156:  * 2 along with this work; if not, write to the Free Software Foundation,
gtriantafill@7156:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
gtriantafill@7156:  *
gtriantafill@7156:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
gtriantafill@7156:  * or visit www.oracle.com if you need additional information or have any
gtriantafill@7156:  * questions.
gtriantafill@7156:  */
gtriantafill@7156: 
gtriantafill@7156: /*
gtriantafill@7156:  * @test
gtriantafill@7156:  * @bug 8054836
gtriantafill@7156:  * @summary Test to verify correctness of malloc tracking
gtriantafill@7156:  * @key nmt jcmd
gtriantafill@7156:  * @library /testlibrary /testlibrary/whitebox
gtriantafill@7156:  * @build MallocTrackingVerify
gtriantafill@7156:  * @run main ClassFileInstaller sun.hotspot.WhiteBox
gtriantafill@7156:  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTrackingVerify
gtriantafill@7156:  *
gtriantafill@7156:  */
gtriantafill@7156: 
gtriantafill@7156: import java.util.ArrayList;
gtriantafill@7156: import java.util.Random;
gtriantafill@7156: 
gtriantafill@7156: import com.oracle.java.testlibrary.*;
gtriantafill@7156: 
gtriantafill@7156: import sun.hotspot.WhiteBox;
gtriantafill@7156: 
gtriantafill@7156: public class MallocTrackingVerify {
gtriantafill@7156:     private static int MAX_ALLOC = 4 * 1024;
gtriantafill@7156: 
gtriantafill@7156:     static ArrayList<MallocMemory> mallocd_memory = new ArrayList<MallocMemory>();
gtriantafill@7156:     static long mallocd_total = 0;
gtriantafill@7156:     public static WhiteBox wb = WhiteBox.getWhiteBox();
gtriantafill@7156: 
gtriantafill@7156:     public static void main(String args[]) throws Exception {
gtriantafill@7156:         OutputAnalyzer output;
gtriantafill@7156: 
gtriantafill@7156:         // Grab my own PID
gtriantafill@7156:         String pid = Integer.toString(ProcessTools.getProcessId());
gtriantafill@7156:         ProcessBuilder pb = new ProcessBuilder();
gtriantafill@7156: 
gtriantafill@7156:         Random random = new Random();
gtriantafill@7156:         // Allocate small amounts of memory with random pseudo call stack
gtriantafill@7156:         while (mallocd_total < MAX_ALLOC) {
gtriantafill@7156:             int size = random.nextInt(31) + 1;
gtriantafill@7156:             long addr = wb.NMTMallocWithPseudoStack(size, random.nextInt());
gtriantafill@7156:             if (addr != 0) {
gtriantafill@7156:                 MallocMemory mem = new MallocMemory(addr, size);
gtriantafill@7156:                 mallocd_memory.add(mem);
gtriantafill@7156:                 mallocd_total += size;
gtriantafill@7156:             } else {
gtriantafill@7156:                 System.out.println("Out of malloc memory");
gtriantafill@7156:                 break;
gtriantafill@7156:             }
gtriantafill@7156:         }
gtriantafill@7156: 
gtriantafill@7156:         pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" });
gtriantafill@7156:         output = new OutputAnalyzer(pb.start());
gtriantafill@7156:         output.shouldContain("Test (reserved=4KB, committed=4KB)");
gtriantafill@7156: 
gtriantafill@7156:         // Free
gtriantafill@7156:         for (MallocMemory mem : mallocd_memory) {
gtriantafill@7156:             wb.NMTFree(mem.addr());
gtriantafill@7156:         }
gtriantafill@7156: 
gtriantafill@7156:         // Run 'jcmd <pid> VM.native_memory summary', check for expected output
gtriantafill@7156:         pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid,
gtriantafill@7156:                 "VM.native_memory", "summary" });
gtriantafill@7156:         output = new OutputAnalyzer(pb.start());
gtriantafill@7156:         output.shouldNotContain("Test (reserved=");
gtriantafill@7156:     }
gtriantafill@7156: 
gtriantafill@7156:     static class MallocMemory {
gtriantafill@7156:         private long addr;
gtriantafill@7156:         private int size;
gtriantafill@7156: 
gtriantafill@7156:         MallocMemory(long addr, int size) {
gtriantafill@7156:             this.addr = addr;
gtriantafill@7156:             this.size = size;
gtriantafill@7156:         }
gtriantafill@7156: 
gtriantafill@7156:         long addr() {
gtriantafill@7156:             return this.addr;
gtriantafill@7156:         }
gtriantafill@7156: 
gtriantafill@7156:         int size() {
gtriantafill@7156:             return this.size;
gtriantafill@7156:         }
gtriantafill@7156:     }
gtriantafill@7156: }