tests/lib/libc/setjmp/t_threadjmp.c

   1 /* $NetBSD: t_threadjmp.c,v 1.1 2011/04/21 18:58:20 martin 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 /*
  30  * Copyright (c) 1994 Christopher G. Demetriou
  31  * All rights reserved.
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  * 2. Redistributions in binary form must reproduce the above copyright
  39  *    notice, this list of conditions and the following disclaimer in the
  40  *    documentation and/or other materials provided with the distribution.
  41  * 3. All advertising materials mentioning features or use of this software
  42  *    must display the following acknowledgement:
  43  *          This product includes software developed for the
  44  *          NetBSD Project.  See http://www.NetBSD.org/ for
  45  *          information about NetBSD.
  46  * 4. The name of the author may not be used to endorse or promote products
  47  *    derived from this software without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  50  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  51  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  52  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  53  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  54  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  55  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  56  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  57  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  58  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  59  *
  60  * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
  61  */
  62
  63 #include <sys/cdefs.h>
  64 __COPYRIGHT("@(#) Copyright (c) 2008\
  65  The NetBSD Foundation, inc. All rights reserved.");
  66 __RCSID("$NetBSD: t_threadjmp.c,v 1.1 2011/04/21 18:58:20 martin Exp $");
  67
  68 #include <sys/types.h>
  69
  70 #include <errno.h>
  71 #include <setjmp.h>
  72 #include <signal.h>
  73 #include <stdio.h>
  74 #include <stdlib.h>
  75 #include <string.h>
  76 #include <unistd.h>
  77
  78 #include <pthread.h>
  79
  80 #include <atf-c.h>
  81
  82 #define REQUIRE_ERRNO(x) ATF_REQUIRE_MSG(x, "%s", strerror(errno))
  83
  84 #define TEST_SETJMP 0
  85 #define TEST_U_SETJMP 1
  86 #define TEST_SIGSETJMP_SAVE 2
  87 #define TEST_SIGSETJMP_NOSAVE 3
  88
  89 static pthread_t myself = NULL;
  90
  91 static int expectsignal;
  92
  93 static void
  94 aborthandler(int signo)
  95 {
  96         ATF_REQUIRE(myself == pthread_self());
  97         ATF_REQUIRE_MSG(expectsignal, "kill(SIGABRT) succeeded");
  98         atf_tc_pass();
  99 }
 100
 101 static void
 102 h_check(int test)
 103 {
 104         struct sigaction sa;
 105         jmp_buf jb;
 106         sigjmp_buf sjb;
 107         sigset_t ss;
 108         int i, x;
 109
 110         myself = pthread_self();
 111         i = getpid();
 112
 113         if (test == TEST_SETJMP || test == TEST_SIGSETJMP_SAVE)
 114                 expectsignal = 0;
 115         else if (test == TEST_U_SETJMP || test == TEST_SIGSETJMP_NOSAVE)
 116                 expectsignal = 1;
 117         else
 118                 atf_tc_fail("unknown test");
 119
 120         sa.sa_handler = aborthandler;
 121         sigemptyset(&sa.sa_mask);
 122         sa.sa_flags = 0;
 123         REQUIRE_ERRNO(sigaction(SIGABRT, &sa, NULL) != -1);
 124         REQUIRE_ERRNO(sigemptyset(&ss) != -1);
 125         REQUIRE_ERRNO(sigaddset(&ss, SIGABRT) != -1);
 126         REQUIRE_ERRNO(sigprocmask(SIG_BLOCK, &ss, NULL) != -1);
 127         ATF_REQUIRE(myself == pthread_self());
 128
 129         if (test == TEST_SETJMP)
 130                 x = setjmp(jb);
 131         else if (test == TEST_U_SETJMP)
 132                 x = _setjmp(jb);
 133         else
 134                 x = sigsetjmp(sjb, !expectsignal);
 135
 136         if (x != 0) {
 137                 ATF_REQUIRE(myself == pthread_self());
 138                 ATF_REQUIRE_MSG(x == i, "setjmp returned wrong value");
 139                 kill(i, SIGABRT);
 140                 ATF_REQUIRE_MSG(!expectsignal, "kill(SIGABRT) failed");
 141                 ATF_REQUIRE(myself == pthread_self());
 142                 atf_tc_pass();
 143         }
 144
 145         ATF_REQUIRE(myself == pthread_self());
 146         REQUIRE_ERRNO(sigprocmask(SIG_UNBLOCK, &ss, NULL) != -1);
 147
 148         if (test == TEST_SETJMP)
 149                 longjmp(jb, i);
 150         else if (test == TEST_U_SETJMP)
 151                 _longjmp(jb, i);
 152         else
 153                 siglongjmp(sjb, i);
 154
 155         atf_tc_fail("jmp failed");
 156 }
 157
 158 ATF_TC(setjmp);
 159 ATF_TC_HEAD(setjmp, tc)
 160 {
 161         atf_tc_set_md_var(tc, "descr",
 162             "Checks pthread_self() and setjmp(3)");
 163 }
 164 ATF_TC_BODY(setjmp, tc)
 165 {
 166         h_check(TEST_SETJMP);
 167 }
 168
 169 ATF_TC(_setjmp);
 170 ATF_TC_HEAD(_setjmp, tc)
 171 {
 172         atf_tc_set_md_var(tc, "descr",
 173             "Checks pthread_self() and _setjmp(3)");
 174 }
 175 ATF_TC_BODY(_setjmp, tc)
 176 {
 177         h_check(TEST_U_SETJMP);
 178 }
 179
 180 ATF_TC(sigsetjmp_save);
 181 ATF_TC_HEAD(sigsetjmp_save, tc)
 182 {
 183         atf_tc_set_md_var(tc, "descr",
 184             "Checks pthread_self() and sigsetjmp(3) with savemask enabled");
 185 }
 186 ATF_TC_BODY(sigsetjmp_save, tc)
 187 {
 188         h_check(TEST_SIGSETJMP_SAVE);
 189 }
 190
 191 ATF_TC(sigsetjmp_nosave);
 192 ATF_TC_HEAD(sigsetjmp_nosave, tc)
 193 {
 194         atf_tc_set_md_var(tc, "descr",
 195             "Checks pthread_self() and sigsetjmp(3) with savemask disabled");
 196 }
 197 ATF_TC_BODY(sigsetjmp_nosave, tc)
 198 {
 199         h_check(TEST_SIGSETJMP_NOSAVE);
 200 }
 201
 202 ATF_TP_ADD_TCS(tp)
 203 {
 204
 205         /*
 206          * These test cases try to verify setjmp and friends in a program
 207          * linked with pthreads, and verify that pthread_self() stays
 208          * consistent throughout the program. A setcontext() call invoked
 209          * by *setjmp() might clobber the TLS special register used to
 210          * implement pthread_self().
 211          */
 212         ATF_TP_ADD_TC(tp, setjmp);
 213         ATF_TP_ADD_TC(tp, _setjmp);
 214         ATF_TP_ADD_TC(tp, sigsetjmp_save);
 215         ATF_TP_ADD_TC(tp, sigsetjmp_nosave);
 216
 217         return atf_no_error();
 218 }