usr/src/cmd/dtrace/test/tst/i386/funcs/tst.badcopyout.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:
  31  *      On IA/32, there is a single 32-bit address space that is partitioned
  32  *      between user-level and kernel-level.  copyin()/copyinstr() and
  33  *      copyout()/copyoutstr() must check that addresses specified as
  34  *      user-level addresses are actually at user-level.  This test attempts
  35  *      to perform an illegal copyout() to a kernel address.  It asserts that
  36  *      the fault type is DTRACEFLT_BADADDR and that the bad address is set to
  37  *      the kernel address to which the copyout() was attempted.
  38  *
  39  * SECTION: Actions and Subroutines/copyout()
  40  *
  41  */
  42
  43 #pragma D option destructive
  44
  45 BEGIN
  46 {
  47         this->a = (uint32_t *)alloca(4);
  48         *this->a = -1;
  49         copyout(this->a, (uintptr_t)&`clock, 4);
  50         exit(1);
  51 }
  52
  53 ERROR
  54 {
  55         exit(arg4 == DTRACEFLT_BADADDR && arg5 == (uint64_t)&`clock ? 0 : 1);
  56 }