1 /* 2 * Copyright (c) 2015-2017 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 <signal.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 33 #ifdef ASM_SIGRTMIN 34 # define RT_0 ASM_SIGRTMIN 35 #else 36 /* Linux kernel >= 3.18 defines SIGRTMIN to 32 on all architectures. */ 37 # define RT_0 32 38 #endif 39 40 static void 41 handler(int no, siginfo_t *si, void *uc) 42 { 43 } 44 45 int 46 main(void) 47 { 48 static sigset_t set; 49 sigemptyset(&set); 50 sigaddset(&set, SIGINT); 51 sigaddset(&set, SIGUSR2); 52 sigaddset(&set, SIGCHLD); 53 sigaddset(&set, RT_0 + 3); 54 sigaddset(&set, RT_0 + 4); 55 sigaddset(&set, RT_0 + 5); 56 sigaddset(&set, RT_0 + 26); 57 sigaddset(&set, RT_0 + 27); 58 if (sigprocmask(SIG_SETMASK, &set, NULL)) 59 perror_msg_and_fail("sigprocmask"); 60 sigemptyset(&set); 61 62 static const struct sigaction sa = { 63 .sa_sigaction = handler, 64 .sa_flags = SA_SIGINFO 65 }; 66 if (sigaction(SIGUSR1, &sa, NULL)) 67 perror_msg_and_fail("sigaction"); 68 69 if (raise(SIGUSR1)) 70 perror_msg_and_fail("raise"); 71 72 static const char *const sigs = 73 (SIGUSR2 < SIGCHLD) ? "INT USR2 CHLD" : "INT CHLD USR2"; 74 static const char *const rt_sigs = "RT_3 RT_4 RT_5 RT_26 RT_27"; 75 printf("rt_sigreturn({mask=[%s %s]}) = 0\n", sigs, rt_sigs); 76 77 puts("+++ exited with 0 +++"); 78 return 0; 79 } 80
