Branch data Line data Source code
1 : : /*
2 : : * Copyright (c) 2012 Denys Vlasenko <vda.linux@googlemail.com>
3 : : * Copyright (c) 2012-2015 Dmitry V. Levin <ldv@altlinux.org>
4 : : * Copyright (c) 2014-2017 The strace developers.
5 : : * All rights reserved.
6 : : *
7 : : * Redistribution and use in source and binary forms, with or without
8 : : * modification, are permitted provided that the following conditions
9 : : * are met:
10 : : * 1. Redistributions of source code must retain the above copyright
11 : : * notice, this list of conditions and the following disclaimer.
12 : : * 2. Redistributions in binary form must reproduce the above copyright
13 : : * notice, this list of conditions and the following disclaimer in the
14 : : * documentation and/or other materials provided with the distribution.
15 : : * 3. The name of the author may not be used to endorse or promote products
16 : : * derived from this software without specific prior written permission.
17 : : *
18 : : * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 : : * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 : : * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 : : * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 : : * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 : : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 : : * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 : : * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 : : * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 : : * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 : : */
29 : :
30 : : #include "defs.h"
31 : :
32 : 28 : SYS_FUNC(process_vm_readv)
33 : : {
34 [ + + ]: 28 : if (entering(tcp)) {
35 : : /* arg 1: pid */
36 : 14 : tprintf("%d, ", (int) tcp->u_arg[0]);
37 : : } else {
38 : 14 : kernel_ulong_t local_iovcnt = tcp->u_arg[2];
39 : 14 : kernel_ulong_t remote_iovcnt = tcp->u_arg[4];
40 : 14 : kernel_ulong_t flags = tcp->u_arg[5];
41 : :
42 : : /* arg 2: local iov */
43 : 14 : tprint_iov_upto(tcp, local_iovcnt, tcp->u_arg[1],
44 : 14 : syserror(tcp) ? IOV_DECODE_ADDR : IOV_DECODE_STR,
45 : 14 : tcp->u_rval);
46 : : /* arg 3: local iovcnt */
47 : 14 : tprintf(", %" PRI_klu ", ", local_iovcnt);
48 : : /* arg 4: remote iov */
49 : 14 : tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3],
50 : : IOV_DECODE_ADDR);
51 : : /* arg 5: remote iovcnt */
52 : : /* arg 6: flags */
53 : 14 : tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags);
54 : : }
55 : 28 : return 0;
56 : : }
57 : :
58 : 14 : SYS_FUNC(process_vm_writev)
59 : : {
60 : 14 : kernel_ulong_t local_iovcnt = tcp->u_arg[2];
61 : 14 : kernel_ulong_t remote_iovcnt = tcp->u_arg[4];
62 : 14 : kernel_ulong_t flags = tcp->u_arg[5];
63 : :
64 : : /* arg 1: pid */
65 : 14 : tprintf("%d, ", (int) tcp->u_arg[0]);
66 : : /* arg 2: local iov */
67 : 14 : tprint_iov(tcp, local_iovcnt, tcp->u_arg[1], IOV_DECODE_STR);
68 : : /* arg 3: local iovcnt */
69 : 14 : tprintf(", %" PRI_klu ", ", local_iovcnt);
70 : : /* arg 4: remote iov */
71 : 14 : tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3], IOV_DECODE_ADDR);
72 : : /* arg 5: remote iovcnt */
73 : : /* arg 6: flags */
74 : 14 : tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags);
75 : :
76 : 14 : return RVAL_DECODED;
77 : : }
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