usr/src/cmd/dtrace/test/tst/common/pid/tst.vfork.d

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  * ASSERTION: make sure probes called from a vfork(2) child fire in the parent
  31  *
  32  * SECTION: pid provider
  33  */
  34
  35 #pragma D option destructive
  36
  37 pid$1:a.out:waiting:entry
  38 {
  39         this->value = (int *)alloca(sizeof (int));
  40         *this->value = 1;
  41         copyout(this->value, arg0, sizeof (int));
  42 }
  43
  44 proc:::create
  45 /pid == $1/
  46 {
  47         child = args[0]->pr_pid;
  48 }
  49
  50 pid$1:a.out:go:
  51 /child != pid/
  52 {
  53         printf("wrong pid (%d %d)", pid, child);
  54         exit(1);
  55 }
  56
  57 syscall::rexit:entry
  58 /pid == $1/
  59 {
  60         exit(0);
  61 }