1 /*
2 * Copyright (c) 2002-2004 Roland McGrath <roland@redhat.com>
3 * Copyright (c) 2009-2015 Dmitry V. Levin <ldv@altlinux.org>
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
31 static void
print_affinitylist(struct tcb * tcp,const unsigned long addr,const unsigned int len)32 print_affinitylist(struct tcb *tcp, const unsigned long addr, const unsigned int len)
33 {
34 unsigned long w;
35 const unsigned int size = len * sizeof(w);
36 const unsigned long end = addr + size;
37 unsigned long cur, abbrev_end;
38
39 if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
40 !addr || !len || size / sizeof(w) != len || end < addr) {
41 printaddr(addr);
42 return;
43 }
44
45 if (abbrev(tcp)) {
46 abbrev_end = addr + max_strlen * sizeof(w);
47 if (abbrev_end < addr)
48 abbrev_end = end;
49 } else {
50 abbrev_end = end;
51 }
52
53 tprints("[");
54 for (cur = addr; cur < end; cur += sizeof(w)) {
55 if (cur > addr)
56 tprints(", ");
57 if (cur >= abbrev_end) {
58 tprints("...");
59 break;
60 }
61 if (umove_or_printaddr(tcp, cur, &w))
62 break;
63 tprintf("%lx", w);
64 }
65 tprints("]");
66 }
67
SYS_FUNC(sched_setaffinity)68 SYS_FUNC(sched_setaffinity)
69 {
70 tprintf("%ld, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
71 print_affinitylist(tcp, tcp->u_arg[2], tcp->u_arg[1]);
72
73 return RVAL_DECODED;
74 }
75
SYS_FUNC(sched_getaffinity)76 SYS_FUNC(sched_getaffinity)
77 {
78 if (entering(tcp)) {
79 tprintf("%ld, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
80 } else {
81 print_affinitylist(tcp, tcp->u_arg[2], tcp->u_rval);
82 }
83 return 0;
84 }
85