1 /*
2 * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
3 * Copyright (c) 2015-2017 The strace developers.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "defs.h"
30 #include "xlat/kcmp_types.h"
31
SYS_FUNC(kcmp)32 SYS_FUNC(kcmp)
33 {
34 pid_t pid1 = tcp->u_arg[0];
35 pid_t pid2 = tcp->u_arg[1];
36 int type = tcp->u_arg[2];
37 kernel_ulong_t idx1 = tcp->u_arg[3];
38 kernel_ulong_t idx2 = tcp->u_arg[4];
39
40 tprintf("%d, %d, ", pid1, pid2);
41 printxval(kcmp_types, type, "KCMP_???");
42
43 switch (type) {
44 case KCMP_FILE:
45 tprintf(", %u, %u", (unsigned) idx1, (unsigned) idx2);
46 break;
47 case KCMP_FILES:
48 case KCMP_FS:
49 case KCMP_IO:
50 case KCMP_SIGHAND:
51 case KCMP_SYSVSEM:
52 case KCMP_VM:
53 break;
54 default:
55 tprintf(", %#" PRI_klx ", %#" PRI_klx, idx1, idx2);
56 }
57
58 return RVAL_DECODED;
59 }
60