1 /* $NetBSD: t_siglongjmp.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $ */ 2 3 /* 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __COPYRIGHT("@(#) Copyright (c) 2008\ 31 The NetBSD Foundation, inc. All rights reserved."); 32 __RCSID("$NetBSD: t_siglongjmp.c,v 1.1 2010/07/16 15:42:53 jmmv Exp $"); 33 34 /* 35 * Regression test for siglongjmp out of a signal handler back into 36 * its thread. 37 * 38 * Written by Christian Limpach <cl@NetBSD.org>, December 2003. 39 * Public domain. 40 */ 41 42 #include <sys/resource.h> 43 44 #include <pthread.h> 45 #include <setjmp.h> 46 #include <signal.h> 47 #include <unistd.h> 48 49 #include <atf-c.h> 50 51 #include "h_common.h" 52 53 static sigjmp_buf env; 54 55 static void * 56 thread(void *arg) 57 { 58 return NULL; 59 } 60 61 static void 62 handler(int sig, siginfo_t *info, void *ctx) 63 { 64 siglongjmp(env, 1); 65 } 66 67 ATF_TC(siglongjmp1); 68 ATF_TC_HEAD(siglongjmp1, tc) 69 { 70 atf_tc_set_md_var(tc, "descr", 71 "Checks siglongjmp() out of a signal handler back into its thread"); 72 } 73 ATF_TC_BODY(siglongjmp1, tc) 74 { 75 pthread_t t; 76 sigset_t nset; 77 struct rlimit rlim; 78 struct sigaction act; 79 80 rlim.rlim_cur = rlim.rlim_max = 0; 81 (void)setrlimit(RLIMIT_CORE, &rlim); 82 83 PTHREAD_REQUIRE(pthread_create(&t, NULL, thread, NULL)); 84 85 sigemptyset(&nset); 86 sigaddset(&nset, SIGUSR1); 87 PTHREAD_REQUIRE(pthread_sigmask(SIG_SETMASK, &nset, NULL)); 88 89 act.sa_sigaction = handler; 90 sigemptyset(&act.sa_mask); 91 sigaddset(&act.sa_mask, SIGUSR2); 92 act.sa_flags = 0; 93 sigaction(SIGSEGV, &act, NULL); 94 95 ATF_REQUIRE_EQ(sigsetjmp(env, 1), 0); 96 97 PTHREAD_REQUIRE(pthread_sigmask(0, NULL, &nset)); 98 99 ATF_REQUIRE_EQ_MSG(sigismember(&nset, SIGSEGV), 0, "SIGSEGV set"); 100 ATF_REQUIRE_EQ_MSG(sigismember(&nset, SIGUSR2), 0, "SIGUSR2 set"); 101 ATF_REQUIRE_MSG(sigismember(&nset, SIGUSR1), "SIGUSR1 not set"); 102 } 103 104 ATF_TP_ADD_TCS(tp) 105 { 106 ATF_TP_ADD_TC(tp, siglongjmp1); 107 108 return atf_no_error(); 109 } 110