1d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes/* 2d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * This file is part of rt_sigsuspend strace test. 3d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 4d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 539bac055674d23770b9a724221b728e443196ea7Elliott Hughes * Copyright (c) 2016-2017 The strace developers. 6d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * All rights reserved. 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Redistribution and use in source and binary forms, with or without 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * modification, are permitted provided that the following conditions 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * are met: 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 1. Redistributions of source code must retain the above copyright 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer. 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer in the 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * documentation and/or other materials provided with the distribution. 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 3. The name of the author may not be used to endorse or promote products 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * derived from this software without specific prior written permission. 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "tests.h" 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <asm/unistd.h> 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#ifdef __NR_rt_sigsuspend 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <assert.h> 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <errno.h> 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <signal.h> 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <stdio.h> 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <stdint.h> 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <string.h> 42d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <unistd.h> 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic long 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesk_sigsuspend(const sigset_t *const set, const unsigned long size) 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return syscall(__NR_rt_sigsuspend, set, size); 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesiterate(const char *const text, const int sig, 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const void *const set, unsigned int size) 53d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 54d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const void *mask; 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes for (mask = set;; size >>= 1, mask += size) { 57d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(sig); 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(mask, size) == -1); 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (EINTR == errno) { 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%s, %u) = ? ERESTARTNOHAND" 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes text, size); 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } else { 64d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (size < sizeof(long)) 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%p, %u)" 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " = -1 EINVAL (%m)\n", 67d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes mask, size); 68d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes else 69d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%s, %u)" 70d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " = -1 EINVAL (%m)\n", 71d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes set == mask ? text : "~[]", size); 72d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 73d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (!size) 74d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes break; 75d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 76d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 77d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 78d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 79d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hugheshandler(int signo) 80d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 81d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 82d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 83d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesint 84d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesmain(void) 85d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 86d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("%s", ""); 87d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 88d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const unsigned int big_size = 1024 / 8; 89d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *k_set = tail_alloc(big_size); 90d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memset(k_set, 0, big_size); 91d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 9239bac055674d23770b9a724221b728e443196ea7Elliott Hughes TAIL_ALLOC_OBJECT_CONST_PTR(sigset_t, libc_set); 93d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigemptyset(libc_set); 94d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGUSR1); 95d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (sigprocmask(SIG_SETMASK, libc_set, NULL)) 96d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("sigprocmask"); 97d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 98d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct sigaction sa = { 99d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .sa_handler = handler 100d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }; 101d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (sigaction(SIGUSR1, &sa, NULL)) 102d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("sigaction"); 103d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 104d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 105d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes unsigned int set_size = big_size; 106d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes for (; set_size; set_size >>= 1, k_set += set_size) { 107d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 108d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (EINTR == errno) 109d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes break; 110d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%p, %u) = -1 EINVAL (%m)\n", 111d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes k_set, set_size); 112d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 113d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (!set_size) 114d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("rt_sigsuspend"); 115d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([], %u) = ? ERESTARTNOHAND" 116d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 117d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 118d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigemptyset(libc_set); 119d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGUSR2); 120d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 121d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 122d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 123d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 124d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([USR2], %u) = ? ERESTARTNOHAND" 125d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 126d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 127d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGHUP); 128d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 129d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 130d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 131d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 132d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([HUP USR2], %u) = ? ERESTARTNOHAND" 133d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 134d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 135d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGINT); 136d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 137d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 138d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 139d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 140d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([HUP INT USR2], %u) = ? ERESTARTNOHAND" 141d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 142d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 143d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memset(libc_set, -1, sizeof(*libc_set)); 144d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigdelset(libc_set, SIGUSR1); 145d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 146d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 147d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 148d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 149d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(~[USR1], %u) = ? ERESTARTNOHAND" 150d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 151d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 152d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set - set_size, set_size << 1) == -1); 153d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%p, %u) = -1 EINVAL (%m)\n", 154d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes k_set - set_size, set_size << 1); 155d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 156d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes iterate("~[USR1]", SIGUSR1, k_set, set_size >> 1); 157d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 158d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("+++ exited with 0 +++\n"); 159d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return 0; 160d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 161d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 162d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#else 163d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 164d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott HughesSKIP_MAIN_UNDEFINED("__NR_rt_sigsuspend") 165d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 166d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 167