usr/src/cmd/dtrace/test/tst/common/pid/tst.weak2.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 2006 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: check that we prefer weak symbols to local ones
  31  *
  32  * SECTION: pid provider
  33  */
  34
  35 #pragma D option destructive
  36
  37 BEGIN
  38 {
  39         /*
  40          * Wait no more than a second for the first call to getpid(2).
  41          */
  42         timeout = timestamp + 1000000000;
  43 }
  44
  45 syscall::getpid:return
  46 /pid == $1/
  47 {
  48         i = 0;
  49         raise(SIGUSR1);
  50         /*
  51          * Wait half a second after raising the signal.
  52          */
  53         timeout = timestamp + 500000000;
  54 }
  55
  56 pid$1:a.out:go:entry,
  57 pid$1:a.out:_go:entry
  58 /probefunc == "_go"/
  59 {
  60         i++;
  61 }
  62
  63 pid$1:a.out:go:entry,
  64 pid$1:a.out:_go:entry
  65 /probefunc == "go"/
  66 {
  67         trace("resolved to '_go' rather than 'go'");
  68         exit(1);
  69 }
  70
  71 pid$1:a.out:go:entry,
  72 pid$1:a.out:_go:entry
  73 /i == 2/
  74 {
  75         exit(0);
  76 }
  77
  78 profile:::tick-4
  79 /timestamp > timeout/
  80 {
  81         trace("test timed out");
  82         exit(1);
  83 }