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> 5d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * All rights reserved. 6d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * Redistribution and use in source and binary forms, with or without 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * modification, are permitted provided that the following conditions 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * are met: 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 1. Redistributions of source code must retain the above copyright 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer. 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 2. Redistributions in binary form must reproduce the above copyright 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * notice, this list of conditions and the following disclaimer in the 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * documentation and/or other materials provided with the distribution. 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 3. The name of the author may not be used to endorse or promote products 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * derived from this software without specific prior written permission. 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes */ 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include "tests.h" 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#include <asm/unistd.h> 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#ifdef __NR_rt_sigsuspend 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <assert.h> 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <errno.h> 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <signal.h> 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <stdio.h> 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <stdint.h> 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <string.h> 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# include <unistd.h> 42d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic long 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesk_sigsuspend(const sigset_t *const set, const unsigned long size) 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return syscall(__NR_rt_sigsuspend, set, size); 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesiterate(const char *const text, const int sig, 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const void *const set, unsigned int size) 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 53d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const void *mask; 54d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes for (mask = set;; size >>= 1, mask += size) { 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(sig); 57d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(mask, size) == -1); 58d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (EINTR == errno) { 59d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%s, %u) = ? ERESTARTNOHAND" 60d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", 61d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes text, size); 62d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } else { 63d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (size < sizeof(long)) 64d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%p, %u)" 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " = -1 EINVAL (%m)\n", 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes mask, size); 67d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes else 68d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%s, %u)" 69d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " = -1 EINVAL (%m)\n", 70d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes set == mask ? text : "~[]", size); 71d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 72d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (!size) 73d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes break; 74d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 75d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 76d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 77d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesstatic void 78d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hugheshandler(int signo) 79d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 80d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 81d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 82d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesint 83d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesmain(void) 84d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes{ 85d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("%s", ""); 86d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 87d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const unsigned int big_size = 1024 / 8; 88d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes void *k_set = tail_alloc(big_size); 89d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memset(k_set, 0, big_size); 90d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 91d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigset_t *const libc_set = tail_alloc(sizeof(sigset_t)); 92d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigemptyset(libc_set); 93d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGUSR1); 94d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (sigprocmask(SIG_SETMASK, libc_set, NULL)) 95d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("sigprocmask"); 96d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 97d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes const struct sigaction sa = { 98d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes .sa_handler = handler 99d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes }; 100d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (sigaction(SIGUSR1, &sa, NULL)) 101d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("sigaction"); 102d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 103d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 104d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes unsigned int set_size = big_size; 105d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes for (; set_size; set_size >>= 1, k_set += set_size) { 106d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 107d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (EINTR == errno) 108d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes break; 109d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%p, %u) = -1 EINVAL (%m)\n", 110d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes k_set, set_size); 111d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes } 112d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes if (!set_size) 113d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes perror_msg_and_fail("rt_sigsuspend"); 114d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([], %u) = ? ERESTARTNOHAND" 115d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 116d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 117d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigemptyset(libc_set); 118d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGUSR2); 119d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 120d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 121d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 122d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 123d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([USR2], %u) = ? ERESTARTNOHAND" 124d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 125d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 126d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGHUP); 127d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 128d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 129d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 130d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 131d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([HUP USR2], %u) = ? ERESTARTNOHAND" 132d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 133d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 134d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigaddset(libc_set, SIGINT); 135d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 136d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 137d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 138d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 139d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend([HUP INT USR2], %u) = ? ERESTARTNOHAND" 140d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 141d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 142d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memset(libc_set, -1, sizeof(*libc_set)); 143d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sigdelset(libc_set, SIGUSR1); 144d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes memcpy(k_set, libc_set, set_size); 145d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes raise(SIGUSR1); 146d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set, set_size) == -1); 147d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(EINTR == errno); 148d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(~[USR1], %u) = ? ERESTARTNOHAND" 149d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes " (To be restarted if no handler)\n", set_size); 150d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 151d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes assert(k_sigsuspend(k_set - set_size, set_size << 1) == -1); 152d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("rt_sigsuspend(%p, %u) = -1 EINVAL (%m)\n", 153d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes k_set - set_size, set_size << 1); 154d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 155d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes iterate("~[USR1]", SIGUSR1, k_set, set_size >> 1); 156d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 157d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes tprintf("+++ exited with 0 +++\n"); 158d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes return 0; 159d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes} 160d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 161d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#else 162d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 163d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott HughesSKIP_MAIN_UNDEFINED("__NR_rt_sigsuspend") 164d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 165d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#endif 166