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 unsigned int *const psize = tail_alloc(sizeof(*psize));
72 void *const efault = attr + 1;
74 sys_sched_getattr(0, 0, 0, 0);
75 printf("sched_getattr(0, NULL, 0, 0) = %s\n", errstr);
77 sys_sched_getattr(0, (unsigned long) attr, 0, 0);
78 printf("sched_getattr(0, %p, 0, 0) = %s\n", attr, errstr);
80 sys_sched_getattr(bogus_pid, 0, 0, 0);
81 printf("sched_getattr(%d, NULL, 0, 0) = %s\n", (int) bogus_pid, errstr);
83 sys_sched_getattr(-1U, (unsigned long) attr, bogus_size, bogus_flags);
84 printf("sched_getattr(-1, %p, %u, %u) = %s\n",
85 attr, (unsigned) bogus_size, (unsigned) bogus_flags, errstr);
87 sys_sched_getattr(0, (unsigned long) efault, sizeof(*attr), 0);
88 printf("sched_getattr(0, %p, %u, 0) = %s\n",
89 efault, (unsigned) sizeof(*attr), errstr);
91 if (sys_sched_getattr(0, (unsigned long) attr, sizeof(*attr), 0))
92 perror_msg_and_skip("sched_getattr");
93 printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
94 printxval(schedulers, attr->sched_policy, NULL);
95 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
96 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
97 ", sched_period=%" PRIu64 "}, %u, 0) = 0\n",
98 attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
100 attr->sched_priority,
102 attr->sched_deadline,
104 (unsigned) sizeof(*attr));
106 sys_sched_getattr(F8ILL_KULONG_MASK, (unsigned long) attr,
107 F8ILL_KULONG_MASK | sizeof(*attr), F8ILL_KULONG_MASK);
108 printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
109 printxval(schedulers, attr->sched_policy, NULL);
110 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
111 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
112 ", sched_period=%" PRIu64 "}, %u, 0) = 0\n",
113 attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
115 attr->sched_priority,
117 attr->sched_deadline,
119 (unsigned) sizeof(*attr));
121 sys_sched_setattr(bogus_pid, 0, 0);
122 printf("sched_setattr(%d, NULL, 0) = %s\n", (int) bogus_pid, errstr);
124 attr->sched_flags |= 1;
126 if (sys_sched_setattr(0, (unsigned long) attr, 0))
127 perror_msg_and_skip("sched_setattr");
128 printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
129 printxval(schedulers, attr->sched_policy, NULL);
130 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
131 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
132 ", sched_period=%" PRIu64 "}, 0) = 0\n",
133 "SCHED_FLAG_RESET_ON_FORK",
135 attr->sched_priority,
137 attr->sched_deadline,
140 sys_sched_setattr(F8ILL_KULONG_MASK, (unsigned long) attr,
142 printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
143 printxval(schedulers, attr->sched_policy, NULL);
144 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
145 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
146 ", sched_period=%" PRIu64 "}, 0) = 0\n",
147 "SCHED_FLAG_RESET_ON_FORK",
149 attr->sched_priority,
151 attr->sched_deadline,
156 sys_sched_setattr(0, (unsigned long) psize, 0);
157 printf("sched_setattr(0, %p, 0) = %s\n", psize, errstr);
161 sys_sched_setattr(0, (unsigned long) attr, 0);
162 printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
163 printxval(schedulers, attr->sched_policy, NULL);
164 printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
165 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
166 ", sched_period=%" PRIu64 "}, 0) = 0\n",
167 "SCHED_FLAG_RESET_ON_FORK",
169 attr->sched_priority,
171 attr->sched_deadline,
176 sys_sched_setattr(0, (unsigned long) attr, 0);
177 printf("sched_setattr(0, {size=%u} => {size=%u}, 0) = %s\n",
178 1, attr->size, errstr);
180 attr->size = SCHED_ATTR_MIN_SIZE - 1;
182 sys_sched_setattr(0, (unsigned long) attr, 0);
183 printf("sched_setattr(0, {size=%u} => {size=%u}, 0) = %s\n",
184 SCHED_ATTR_MIN_SIZE - 1, attr->size, errstr);
186 attr->size = 0x90807060;
187 attr->sched_policy = 0xca7faced;
188 attr->sched_flags = 0xbadc0ded1057da7aULL;
189 attr->sched_nice = 0xafbfcfdf;
190 attr->sched_priority = 0xb8c8d8e8;
191 attr->sched_runtime = 0xbadcaffedeadf157ULL;
192 attr->sched_deadline = 0xc0de70a57badac75ULL;
193 attr->sched_period = 0xded1ca7edda7aca7ULL;
195 sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
196 printf("sched_setattr(%d, {size=%u, sched_policy=%#x /* SCHED_??? */, "
197 "sched_flags=%#" PRIx64 " /* SCHED_FLAG_??? */, "
198 "sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
199 "sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 ", ...}, %u)"
206 attr->sched_priority,
208 attr->sched_deadline,
210 (unsigned) bogus_flags, errstr);
212 if (F8ILL_KULONG_SUPPORTED) {
213 const kernel_ulong_t ill = f8ill_ptr_to_kulong(attr);
215 sys_sched_getattr(0, ill, sizeof(*attr), 0);
216 printf("sched_getattr(0, %#llx, %u, 0) = %s\n",
217 (unsigned long long) ill, (unsigned) sizeof(*attr),
220 sys_sched_setattr(0, ill, 0);
221 printf("sched_setattr(0, %#llx, 0) = %s\n",
222 (unsigned long long) ill, errstr);
225 puts("+++ exited with 0 +++");
231 SKIP_MAIN_UNDEFINED("__NR_sched_getattr && __NR_sched_setattr")