xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/i386/funcs/tst.badcopyinstr.d (revision 9b9d39d2a32ff806d2431dbcc50968ef1e6d46b2)
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 /*
28  * ASSERTION:
29  *	On IA/32, there is a single 32-bit address space that is partitioned
30  *	between user-level and kernel-level.  copyin()/copyinstr() and
31  *	copyout()/copyoutstr() must check that addresses specified as
32  *	user-level addresses are actually at user-level.  This test attempts
33  *	to perform an illegal copyinstr() from a kernel address.  It asserts
34  *	that the fault type is DTRACEFLT_BADADDR and that the bad address is
35  *	set to the kernel address from which the copyinstr() was attempted.
36  *
37  * SECTION: Actions and Subroutines/copyinstr();
38  *	User Process Tracing/copyin() and copyinstr()
39  */
40 
41 BEGIN
42 {
43 	os = copyinstr((uintptr_t)&`utsname);
44 	exit(1);
45 }
46 
47 ERROR
48 {
49 	exit(arg4 == DTRACEFLT_BADADDR && arg5 == (uint64_t)&`utsname ? 0 : 1);
50 }
51