1/* 2 * This file is part of rt_sigtimedwait strace test. 3 * 4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 5 * Copyright (c) 2016-2017 The strace developers. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "tests.h" 32#include <asm/unistd.h> 33 34#ifdef __NR_rt_sigtimedwait 35 36# include <assert.h> 37# include <errno.h> 38# include <signal.h> 39# include <stdio.h> 40# include <stdint.h> 41# include <string.h> 42# include <unistd.h> 43 44static long 45k_sigtimedwait(const sigset_t *const set, siginfo_t *const info, 46 const struct timespec *const timeout, const unsigned long size) 47{ 48 return syscall(__NR_rt_sigtimedwait, set, info, timeout, size); 49} 50 51static void 52iterate(const char *const text, const void *set, 53 const struct timespec *const timeout, unsigned int size) 54{ 55 for (;;) { 56 assert(k_sigtimedwait(set, NULL, timeout, size) == -1); 57 if (EINTR == errno) { 58 tprintf("rt_sigtimedwait(%s, NULL" 59 ", {tv_sec=%lld, tv_nsec=%llu}, %u)" 60 " = -1 EAGAIN (%m)\n", text, 61 (long long) timeout->tv_sec, 62 zero_extend_signed_to_ull(timeout->tv_nsec), 63 size); 64 } else { 65 if (size < sizeof(long)) 66 tprintf("rt_sigtimedwait(%p, NULL" 67 ", {tv_sec=%lld, tv_nsec=%llu}" 68 ", %u) = -1 EINVAL (%m)\n", 69 set, (long long) timeout->tv_sec, 70 zero_extend_signed_to_ull(timeout->tv_nsec), 71 size); 72 else 73 tprintf("rt_sigtimedwait(%s, NULL" 74 ", {tv_sec=%lld, tv_nsec=%llu}" 75 ", %u) = -1 EINVAL (%m)\n", 76 text, (long long) timeout->tv_sec, 77 zero_extend_signed_to_ull(timeout->tv_nsec), 78 size); 79 } 80 if (!size) 81 break; 82 size >>= 1; 83 set += size; 84 } 85} 86 87int 88main(void) 89{ 90 tprintf("%s", ""); 91 92 TAIL_ALLOC_OBJECT_CONST_PTR(siginfo_t, info); 93 TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, timeout); 94 timeout->tv_sec = 0; 95 timeout->tv_nsec = 42; 96 97 const unsigned int big_size = 1024 / 8; 98 void *k_set = tail_alloc(big_size); 99 memset(k_set, 0, big_size); 100 101 unsigned int set_size = big_size; 102 for (; set_size; set_size >>= 1, k_set += set_size) { 103 assert(k_sigtimedwait(k_set, NULL, timeout, set_size) == -1); 104 if (EAGAIN == errno) 105 break; 106 tprintf("rt_sigtimedwait(%p, NULL, {tv_sec=%lld, tv_nsec=%llu}" 107 ", %u) = -1 EINVAL (%m)\n", 108 k_set, (long long) timeout->tv_sec, 109 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 110 } 111 if (!set_size) 112 perror_msg_and_fail("rt_sigtimedwait"); 113 tprintf("rt_sigtimedwait([], NULL, {tv_sec=%lld, tv_nsec=%llu}, %u)" 114 " = -1 EAGAIN (%m)\n", 115 (long long) timeout->tv_sec, 116 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 117 118 timeout->tv_sec = 0xdeadbeefU; 119 timeout->tv_nsec = 0xfacefeedU; 120 assert(k_sigtimedwait(k_set, NULL, timeout, set_size) == -1); 121 tprintf("rt_sigtimedwait([], NULL, {tv_sec=%lld, tv_nsec=%llu}" 122 ", %u) = -1 EINVAL (%m)\n", 123 (long long) timeout->tv_sec, 124 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 125 126 timeout->tv_sec = (time_t) 0xcafef00ddeadbeefLL; 127 timeout->tv_nsec = (long) 0xbadc0dedfacefeedLL; 128 assert(k_sigtimedwait(k_set, NULL, timeout, set_size) == -1); 129 tprintf("rt_sigtimedwait([], NULL, {tv_sec=%lld, tv_nsec=%llu}" 130 ", %u) = -1 EINVAL (%m)\n", 131 (long long) timeout->tv_sec, 132 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 133 134 timeout->tv_sec = 0; 135 timeout->tv_nsec = 42; 136 137 TAIL_ALLOC_OBJECT_CONST_PTR(sigset_t, libc_set); 138 sigemptyset(libc_set); 139 sigaddset(libc_set, SIGHUP); 140 memcpy(k_set, libc_set, set_size); 141 142 assert(k_sigtimedwait(k_set, info, timeout, set_size) == -1); 143 assert(EAGAIN == errno); 144 tprintf("rt_sigtimedwait([HUP], %p, {tv_sec=%lld, tv_nsec=%llu}, %u)" 145 " = -1 EAGAIN (%m)\n", 146 info, (long long) timeout->tv_sec, 147 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 148 149 sigaddset(libc_set, SIGINT); 150 memcpy(k_set, libc_set, set_size); 151 152 assert(k_sigtimedwait(k_set, info, timeout, set_size) == -1); 153 assert(EAGAIN == errno); 154 tprintf("rt_sigtimedwait([HUP INT], %p, {tv_sec=%lld, tv_nsec=%llu}, %u)" 155 " = -1 EAGAIN (%m)\n", 156 info, (long long) timeout->tv_sec, 157 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 158 159 sigaddset(libc_set, SIGQUIT); 160 sigaddset(libc_set, SIGALRM); 161 sigaddset(libc_set, SIGTERM); 162 memcpy(k_set, libc_set, set_size); 163 164 assert(k_sigtimedwait(k_set, info, timeout, set_size) == -1); 165 assert(EAGAIN == errno); 166 tprintf("rt_sigtimedwait(%s, %p, {tv_sec=%lld, tv_nsec=%llu}, %u)" 167 " = -1 EAGAIN (%m)\n", 168 "[HUP INT QUIT ALRM TERM]", 169 info, (long long) timeout->tv_sec, 170 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 171 172 memset(k_set - set_size, -1, set_size); 173 assert(k_sigtimedwait(k_set - set_size, info, timeout, set_size) == -1); 174 assert(EAGAIN == errno); 175 tprintf("rt_sigtimedwait(~[], %p, {tv_sec=%lld, tv_nsec=%llu}, %u)" 176 " = -1 EAGAIN (%m)\n", 177 info, (long long) timeout->tv_sec, 178 zero_extend_signed_to_ull(timeout->tv_nsec), set_size); 179 180 if (sigprocmask(SIG_SETMASK, libc_set, NULL)) 181 perror_msg_and_fail("sigprocmask"); 182 183 assert(k_sigtimedwait(k_set - set_size, info, NULL, set_size << 1) == -1); 184 tprintf("rt_sigtimedwait(%p, %p, NULL, %u) = -1 EINVAL (%m)\n", 185 k_set - set_size, info, set_size << 1); 186 187 iterate("~[]", k_set - set_size, timeout, set_size >> 1); 188 189 timeout->tv_sec = 1; 190 raise(SIGALRM); 191 assert(k_sigtimedwait(k_set, info, timeout, set_size) == SIGALRM); 192 tprintf("rt_sigtimedwait(%s, {si_signo=%s, si_code=SI_TKILL" 193 ", si_pid=%d, si_uid=%d}, {tv_sec=%lld, tv_nsec=%llu}, %u)" 194 " = %d (%s)\n", 195 "[HUP INT QUIT ALRM TERM]", "SIGALRM", getpid(), getuid(), 196 (long long) timeout->tv_sec, 197 zero_extend_signed_to_ull(timeout->tv_nsec), 198 set_size, SIGALRM, "SIGALRM"); 199 200 raise(SIGALRM); 201 assert(k_sigtimedwait(k_set, NULL, NULL, set_size) == SIGALRM); 202 tprintf("rt_sigtimedwait(%s, NULL, NULL, %u) = %d (%s)\n", 203 "[HUP INT QUIT ALRM TERM]", set_size, SIGALRM, "SIGALRM"); 204 205 tprintf("+++ exited with 0 +++\n"); 206 return 0; 207} 208 209#else 210 211SKIP_MAIN_UNDEFINED("__NR_rt_sigtimedwait") 212 213#endif 214