1/*
2 * Copyright (c) 2004 Ulrich Drepper <drepper@redhat.com>
3 * Copyright (c) 2005 Roland McGrath <roland@redhat.com>
4 * Copyright (c) 2012-2015 Dmitry V. Levin <ldv@altlinux.org>
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#include <sched.h>
33
34#include "xlat/schedulers.h"
35#include "xlat/sched_flags.h"
36
37SYS_FUNC(sched_getscheduler)
38{
39	if (entering(tcp)) {
40		tprintf("%d", (int) tcp->u_arg[0]);
41	} else if (!syserror(tcp)) {
42		tcp->auxstr = xlookup(schedulers, (kernel_ulong_t) tcp->u_rval);
43		if (tcp->auxstr != NULL)
44			return RVAL_STR;
45	}
46	return 0;
47}
48
49SYS_FUNC(sched_setscheduler)
50{
51	tprintf("%d, ", (int) tcp->u_arg[0]);
52	printxval(schedulers, tcp->u_arg[1], "SCHED_???");
53	tprints(", ");
54	printnum_int(tcp, tcp->u_arg[2], "%d");
55
56	return RVAL_DECODED;
57}
58
59SYS_FUNC(sched_getparam)
60{
61	if (entering(tcp))
62		tprintf("%d, ", (int) tcp->u_arg[0]);
63	else
64		printnum_int(tcp, tcp->u_arg[1], "%d");
65	return 0;
66}
67
68SYS_FUNC(sched_setparam)
69{
70	tprintf("%d, ", (int) tcp->u_arg[0]);
71	printnum_int(tcp, tcp->u_arg[1], "%d");
72
73	return RVAL_DECODED;
74}
75
76SYS_FUNC(sched_get_priority_min)
77{
78	printxval(schedulers, tcp->u_arg[0], "SCHED_???");
79
80	return RVAL_DECODED;
81}
82
83SYS_FUNC(sched_rr_get_interval)
84{
85	if (entering(tcp)) {
86		tprintf("%d, ", (int) tcp->u_arg[0]);
87	} else {
88		if (syserror(tcp))
89			printaddr(tcp->u_arg[1]);
90		else
91			print_timespec(tcp, tcp->u_arg[1]);
92	}
93	return 0;
94}
95
96static void
97print_sched_attr(struct tcb *const tcp, const kernel_ulong_t addr,
98		 unsigned int size)
99{
100	struct {
101		uint32_t size;
102		uint32_t sched_policy;
103		uint64_t sched_flags;
104		uint32_t sched_nice;
105		uint32_t sched_priority;
106		uint64_t sched_runtime;
107		uint64_t sched_deadline;
108		uint64_t sched_period;
109	} attr = {};
110
111	if (size > sizeof(attr))
112		size = sizeof(attr);
113	if (umoven_or_printaddr(tcp, addr, size, &attr))
114		return;
115
116	tprintf("{size=%u, sched_policy=", attr.size);
117	printxval(schedulers, attr.sched_policy, "SCHED_???");
118	tprints(", sched_flags=");
119	printflags64(sched_flags, attr.sched_flags, "SCHED_FLAG_???");
120	tprintf(", sched_nice=%d", attr.sched_nice);
121	tprintf(", sched_priority=%u", attr.sched_priority);
122	tprintf(", sched_runtime=%" PRIu64, attr.sched_runtime);
123	tprintf(", sched_deadline=%" PRIu64, attr.sched_deadline);
124	tprintf(", sched_period=%" PRIu64 "}", attr.sched_period);
125}
126
127SYS_FUNC(sched_setattr)
128{
129	tprintf("%d, ", (int) tcp->u_arg[0]);
130	print_sched_attr(tcp, tcp->u_arg[1], 0x100);
131	tprintf(", %u", (unsigned int) tcp->u_arg[2]);
132
133	return RVAL_DECODED;
134}
135
136SYS_FUNC(sched_getattr)
137{
138	if (entering(tcp)) {
139		tprintf("%d, ", (int) tcp->u_arg[0]);
140	} else {
141		print_sched_attr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
142		tprintf(", %u, %u",
143			(unsigned int) tcp->u_arg[2],
144			(unsigned int) tcp->u_arg[3]);
145	}
146
147	return 0;
148}
149