#!/usr/sbin/dtrace -Zs

/*

 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/*

*/

/*

 * Usage:

 *   1. hotspot_calls_tree.d -c "java ..."

 *   2. hotspot_calls_tree.d -p JAVA_PID

 *

 * This script prints calls tree of fired 'hotspot' probes.

 *

 * Notes: 

 *    The script uses 'monitors' probes which are disabled by default since

 *    it incurs performance overhead to the application. To enable them, you

 *    need to turn on the ExtendedDTraceProbes VM option. You can either

 *    start the application with -XX:+ExtendedDTraceProbes option or use the

 *    jinfo command to enable it at runtime as follows:

 *

 *       jinfo -flag +ExtendedDTraceProbes <java_pid>

 *

 */

#pragma D option quiet

#pragma D option destructive

#pragma D option defaultargs

#pragma D option aggrate=100ms

self int indent;

string PAUSE_AT_STARTUP_FILE;

:::BEGIN

{

    SAMPLE_NAME = "hotspot probes tracing";

    printf("BEGIN %s\n\n", SAMPLE_NAME);

    self->indent = 10;

}

hotspot$target:::class-loaded,

hotspot$target:::class-unloaded,

hotspot$target:::compiled-method-load,

hotspot$target:::compiled-method-unload,

hotspot$target:::monitor-notify,

hotspot$target:::monitor-notifyAll

{

    printf("%d %*s <-> %s\n", curcpu->cpu_id, self->indent, "", probename);

}

hotspot$target:::vm-init-begin,

hotspot$target:::gc-begin,

hotspot$target:::mem-pool-gc-begin,

hotspot$target:::thread-start,

hotspot$target:::method-compile-begin,

hotspot$target:::monitor-contended-enter,

hotspot$target:::monitor-wait

{

    self->indent ++;

    printf("%d %*s -> %s\n", curcpu->cpu_id, self->indent, "", probename);

}

hotspot$target:::vm-init-end,

hotspot$target:::vm-shutdown,

hotspot$target:::gc-end,

hotspot$target:::mem-pool-gc-end,

hotspot$target:::thread-stop,

hotspot$target:::method-compile-end,

hotspot$target:::monitor-contended-entered,

hotspot$target:::monitor-contended-exit,

hotspot$target:::monitor-waited

{

    printf("%d %*s <- %s\n", curcpu->cpu_id, self->indent, "", probename);

    self->indent --;

}

:::END

{

    printf("\nEND of %s\n", SAMPLE_NAME);

}

syscall::rexit:entry,

syscall::exit:entry

/pid == $target/

{

    exit(0);

}