2 * Copyright (c) 2002-2004 Roland McGrath <roland@redhat.com>
3 * Copyright (c) 2009-2016 Dmitry V. Levin <ldv@altlinux.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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.
35 static unsigned int cpuset_size;
41 sched_getaffinity(pid, cpuset_size, NULL) == -1 &&
53 print_affinitylist(struct tcb *tcp, const unsigned long addr, const unsigned int len)
55 const unsigned int max_size = get_cpuset_size();
56 const unsigned int umove_size = len < max_size ? len : max_size;
57 const unsigned int size =
58 (umove_size + current_wordsize - 1) & -current_wordsize;
59 const unsigned int ncpu = size * 8;
62 if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) ||
63 !addr || !len || !(cpu = calloc(size, 1))) {
68 if (!umoven_or_printaddr(tcp, addr, umove_size, cpu)) {
74 i = next_set_bit(cpu, i, ncpu);
77 tprintf("%s%d", sep, i);
81 tprintf("%s...", sep);
88 SYS_FUNC(sched_setaffinity)
90 const int pid = tcp->u_arg[0];
91 const unsigned int len = tcp->u_arg[1];
93 tprintf("%d, %u, ", pid, len);
94 print_affinitylist(tcp, tcp->u_arg[2], len);
99 SYS_FUNC(sched_getaffinity)
101 const int pid = tcp->u_arg[0];
102 const unsigned int len = tcp->u_arg[1];
105 tprintf("%d, %u, ", pid, len);
107 print_affinitylist(tcp, tcp->u_arg[2], tcp->u_rval);