usr/src/cmd/dtrace/test/tst/common/misc/tst.enablerace.ksh

   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 2006 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26 #ident  "%Z%%M% %I%     %E% SMI"
  27
  28 #
  29 # This script attempts to tease out a race when probes are initially enabled.
  30 #
  31 script()
  32 {
  33         #
  34         # Nauseatingly, the #defines below must be in the 0th column to
  35         # satisfy the ancient cpp that -C defaults to.
  36         #
  37         $dtrace -C -s /dev/stdin <<EOF
  38 #define PROF1           profile:::profile-4000hz
  39 #define PROF4           PROF1, PROF1, PROF1, PROF1
  40 #define PROF16          PROF4, PROF4, PROF4, PROF4
  41 #define PROF64          PROF16, PROF16, PROF16, PROF16
  42 #define PROF256         PROF64, PROF64, PROF64, PROF64
  43 #define PROF512         PROF256, PROF256
  44
  45         PROF1
  46         {
  47                 this->x = 0;
  48         }
  49
  50         PROF512
  51         {
  52                 this->x++;
  53         }
  54
  55         PROF1
  56         /this->x != 512/
  57         {
  58                 printf("failed! x is %d (expected 512)", this->x);
  59                 exit(1);
  60         }
  61
  62         tick-1sec
  63         /secs++/
  64         {
  65                 exit(0);
  66         }
  67 EOF
  68 }
  69
  70 if [ $# != 1 ]; then
  71         echo expected one argument: '<'dtrace-path'>'
  72         exit 2
  73 fi
  74
  75 dtrace=$1
  76 let i=0
  77
  78 while [ "$i" -lt 20 ]; do
  79         script
  80         status=$?
  81
  82         if [ "$status" -ne 0 ]; then
  83                 exit $status
  84         fi
  85
  86         let i=i+1
  87 done
  88
  89 exit 0