1 /* 2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv (at) altlinux.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 15 * 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. 26 */ 27 28 #include "tests.h" 29 #include <asm/unistd.h> 30 31 #if defined __NR_sched_getattr && defined __NR_sched_setattr 32 33 # include <inttypes.h> 34 # include <stdio.h> 35 # include <unistd.h> 36 37 int 38 main(void) 39 { 40 struct { 41 uint32_t size; 42 uint32_t sched_policy; 43 uint64_t sched_flags; 44 int32_t sched_nice; 45 uint32_t sched_priority; 46 uint64_t sched_runtime; 47 uint64_t sched_deadline; 48 uint64_t sched_period; 49 } *sched_attr = tail_alloc(sizeof(*sched_attr)); 50 51 long rc = syscall(__NR_sched_getattr, 0xdeadface, NULL, 0, 0); 52 printf("sched_getattr\\(%d, NULL, 0, 0\\) += %s\n", 53 0xdeadface, sprintrc_grep(rc)); 54 55 rc = syscall(__NR_sched_getattr, -1, 56 sched_attr, 0xbadfaced, 0xc0defeed); 57 printf("sched_getattr\\(-1, %p, %u, %u\\) += %s\n", 58 sched_attr, 0xbadfaced, 0xc0defeed, sprintrc_grep(rc)); 59 60 rc = syscall(__NR_sched_getattr, 0, 61 sched_attr + 1, sizeof(*sched_attr), 0); 62 printf("sched_getattr\\(0, %p, %u, 0\\) += %s\n", 63 sched_attr + 1, (unsigned)sizeof(*sched_attr), 64 sprintrc_grep(rc)); 65 66 if (syscall(__NR_sched_getattr, 0, sched_attr, sizeof(*sched_attr), 0)) 67 perror_msg_and_skip("sched_getattr"); 68 69 printf("sched_getattr\\(0, \\{size=%u, sched_policy=SCHED_[A-Z]+" 70 ", sched_flags=%s, sched_nice=%d, sched_priority=%u" 71 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64 72 ", sched_period=%" PRIu64 "\\}, %u, 0\\) += 0\n", 73 sched_attr->size, 74 sched_attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0", 75 sched_attr->sched_nice, 76 sched_attr->sched_priority, 77 sched_attr->sched_runtime, 78 sched_attr->sched_deadline, 79 sched_attr->sched_period, 80 (unsigned) sizeof(*sched_attr)); 81 82 sched_attr->sched_flags |= 1; 83 if (syscall(__NR_sched_setattr, 0, sched_attr, 0)) 84 perror_msg_and_skip("sched_setattr"); 85 86 printf("sched_setattr\\(0, \\{size=%u, sched_policy=SCHED_[A-Z]+" 87 ", sched_flags=%s, sched_nice=%d, sched_priority=%u" 88 ", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64 89 ", sched_period=%" PRIu64 "\\}, 0\\) += 0\n", 90 sched_attr->size, 91 "SCHED_FLAG_RESET_ON_FORK", 92 sched_attr->sched_nice, 93 sched_attr->sched_priority, 94 sched_attr->sched_runtime, 95 sched_attr->sched_deadline, 96 sched_attr->sched_period); 97 98 sched_attr->size = 0x90807060; 99 sched_attr->sched_policy = 0xca7faced; 100 sched_attr->sched_flags = 0xbadc0ded1057da7aULL; 101 sched_attr->sched_nice = 0xafbfcfdf; 102 sched_attr->sched_priority = 0xb8c8d8e8; 103 sched_attr->sched_runtime = 0xbadcaffedeadf157ULL; 104 sched_attr->sched_deadline = 0xc0de70a57badac75ULL; 105 sched_attr->sched_period = 0xded1ca7edda7aca7ULL; 106 107 rc = syscall(__NR_sched_setattr, 0xfacec0de, sched_attr, 0xbeeff00d); 108 109 printf("sched_setattr\\(%d, \\{size=%u, " 110 "sched_policy=%#x /\\* SCHED_\\?\\?\\? \\*/, " 111 "sched_flags=%#" PRIx64 " /\\* SCHED_FLAG_\\?\\?\\? \\*/, " 112 "sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", " 113 "sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 "\\}, " 114 "%u\\) += %s\n", 115 0xfacec0de, sched_attr->size, 116 sched_attr->sched_policy, 117 sched_attr->sched_flags, 118 sched_attr->sched_nice, 119 sched_attr->sched_priority, 120 sched_attr->sched_runtime, 121 sched_attr->sched_deadline, 122 sched_attr->sched_period, 0xbeeff00d, sprintrc_grep(rc)); 123 124 return 0; 125 } 126 127 #else 128 129 SKIP_MAIN_UNDEFINED("__NR_sched_getattr && __NR_sched_setattr") 130 131 #endif 132
