jdk8-mips64-public/hotspot: test/runtime/NMT/MallocSiteTypeChange.java@c3abd2b71b9a

8200109: NMT: diff_malloc_site assert(early->flags() == current->flags(), "Must be the same memory type")
Reviewed-by: shade, coleenp

     1 /*

     2  * Copyright (c) 2019, Red Hat, Inc. 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  */

    25 /*

    26  * @test MallocSiteTypeChange

    27  * @summary Test a malloc site type change results NMT to report deallocation of old type and allocation of new type

    28  * @bug 8200109

    29  * @key nmt jcmd

    30  * @modules java.base/jdk.internal.misc

    31  * @library /testlibrary /testlibrary/whitebox

    32  * @build sun.hotspot.WhiteBox

    33  * @run driver ClassFileInstaller sun.hotspot.WhiteBox

    34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocSiteTypeChange

    35  */

    37 import com.oracle.java.testlibrary.*;

    38 import sun.hotspot.WhiteBox;

    40 public class MallocSiteTypeChange {

    41     public static void main(String args[]) throws Exception {

    42         OutputAnalyzer output;

    43         WhiteBox wb = WhiteBox.getWhiteBox();

    45         // Grab my own PID

    46         String pid = Long.toString(ProcessTools.getProcessId());

    47         ProcessBuilder pb = new ProcessBuilder();

    49         int pc = 1;

    50         long addr = wb.NMTMallocWithPseudoStack(4 * 1024, pc);

    52         // Verify that current tracking level is "detail"

    53         pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});

    54         output = new OutputAnalyzer(pb.start());

    55         output.shouldContain("Test (reserved=4KB, committed=4KB)");

    57         pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "baseline"});

    58         output = new OutputAnalyzer(pb.start());

    59         output.shouldContain("Baseline succeeded");

    61         wb.NMTFree(addr);

    62         addr = wb.NMTMallocWithPseudoStackAndType(2 * 1024, pc, 7 /* mtInternal */ );

    63         pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail.diff"});

    64         output = new OutputAnalyzer(pb.start());

    65         output.shouldContain("(malloc=0KB type=Test -4KB)");

    66         output.shouldContain("(malloc=2KB type=Internal +2KB #1 +1)");

    67         output.shouldHaveExitValue(0);

    68   }

    69 }

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