2 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <asm/unistd.h>
31 #if defined __NR_sched_getattr && defined __NR_sched_setattr
33 # include <inttypes.h>
37 # include "sched_attr.h"
39 # include "xlat/schedulers.h"
41 static const char *errstr;
44 sys_sched_getattr(kernel_ulong_t pid, kernel_ulong_t attr,
45 kernel_ulong_t size, kernel_ulong_t flags)
47 long rc = syscall(__NR_sched_getattr, pid, attr, size, flags);
48 errstr = sprintrc(rc);
53 sys_sched_setattr(kernel_ulong_t pid, kernel_ulong_t attr, kernel_ulong_t flags)
55 long rc = syscall(__NR_sched_setattr, pid, attr, flags);
56 errstr = sprintrc(rc);
63 static const kernel_ulong_t bogus_pid =
64 (kernel_ulong_t) 0xdefacedfacefeedULL;
65 static const kernel_ulong_t bogus_size =
66 (kernel_ulong_t) 0xdefacedcafef00dULL;
67 static const kernel_ulong_t bogus_flags =
68 (kernel_ulong_t) 0xdefaceddeadc0deULL;
70 struct sched_attr *const attr = tail_alloc(sizeof(*attr));
71 void *const efault = attr + 1;
73 sys_sched_getattr(0, 0, 0, 0);
74 printf("sched_getattr(0, NULL, 0, 0) = %s\n", errstr);
76 sys_sched_getattr(0, (unsigned long) attr, 0, 0);
77 printf("sched_getattr(0, %p, 0, 0) = %s\n", attr, errstr);
79 sys_sched_getattr(bogus_pid, 0, 0, 0);
80 printf("sched_getattr(%d, NULL, 0, 0) = %s\n", (int) bogus_pid, errstr);
82 sys_sched_getattr(-1U, (unsigned long) attr, bogus_size, bogus_flags);
83 printf("sched_getattr(-1, %p, %u, %u) = %s\n",
84 attr, (unsigned) bogus_size, (unsigned) bogus_flags, errstr);
86 sys_sched_getattr(0, (unsigned long) efault, sizeof(*attr), 0);
87 printf("sched_getattr(0, %p, %u, 0) = %s\n",
88 efault, (unsigned) sizeof(*attr), errstr);
90 if (sys_sched_getattr(0, (unsigned long) attr, sizeof(*attr), 0))
91 perror_msg_and_skip("sched_getattr");
92 printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
93 printxval(schedulers, attr->sched_policy, NULL);
94 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
95 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
96 ", sched_period=%" PRIu64 "}, %u, 0) = 0\n",
97 attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
101 attr->sched_deadline,
103 (unsigned) sizeof(*attr));
105 sys_sched_getattr(F8ILL_KULONG_MASK, (unsigned long) attr,
106 F8ILL_KULONG_MASK | sizeof(*attr), F8ILL_KULONG_MASK);
107 printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
108 printxval(schedulers, attr->sched_policy, NULL);
109 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
110 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
111 ", sched_period=%" PRIu64 "}, %u, 0) = 0\n",
112 attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
114 attr->sched_priority,
116 attr->sched_deadline,
118 (unsigned) sizeof(*attr));
120 sys_sched_setattr(bogus_pid, 0, 0);
121 printf("sched_setattr(%d, NULL, 0) = %s\n", (int) bogus_pid, errstr);
123 attr->sched_flags |= 1;
125 if (sys_sched_setattr(0, (unsigned long) attr, 0))
126 perror_msg_and_skip("sched_setattr");
127 printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
128 printxval(schedulers, attr->sched_policy, NULL);
129 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
130 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
131 ", sched_period=%" PRIu64 "}, 0) = 0\n",
132 "SCHED_FLAG_RESET_ON_FORK",
134 attr->sched_priority,
136 attr->sched_deadline,
139 sys_sched_setattr(F8ILL_KULONG_MASK, (unsigned long) attr,
141 printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
142 printxval(schedulers, attr->sched_policy, NULL);
143 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
144 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
145 ", sched_period=%" PRIu64 "}, 0) = 0\n",
146 "SCHED_FLAG_RESET_ON_FORK",
148 attr->sched_priority,
150 attr->sched_deadline,
153 attr->size = 0x90807060;
154 attr->sched_policy = 0xca7faced;
155 attr->sched_flags = 0xbadc0ded1057da7aULL;
156 attr->sched_nice = 0xafbfcfdf;
157 attr->sched_priority = 0xb8c8d8e8;
158 attr->sched_runtime = 0xbadcaffedeadf157ULL;
159 attr->sched_deadline = 0xc0de70a57badac75ULL;
160 attr->sched_period = 0xded1ca7edda7aca7ULL;
162 sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
163 printf("sched_setattr(%d, {size=%u, sched_policy=%#x /* SCHED_??? */, "
164 "sched_flags=%#" PRIx64 " /* SCHED_FLAG_??? */, "
165 "sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
166 "sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 "}, %u)"
173 attr->sched_priority,
175 attr->sched_deadline,
177 (unsigned) bogus_flags, errstr);
179 if (F8ILL_KULONG_SUPPORTED) {
180 const kernel_ulong_t ill = f8ill_ptr_to_kulong(attr);
182 sys_sched_getattr(0, ill, sizeof(*attr), 0);
183 printf("sched_getattr(0, %#llx, %u, 0) = %s\n",
184 (unsigned long long) ill, (unsigned) sizeof(*attr),
187 sys_sched_setattr(0, ill, 0);
188 printf("sched_setattr(0, %#llx, 0) = %s\n",
189 (unsigned long long) ill, errstr);
192 puts("+++ exited with 0 +++");
198 SKIP_MAIN_UNDEFINED("__NR_sched_getattr && __NR_sched_setattr")