4 # Copyright (c) 2014 EMC Corp.
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
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.
16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 # The test program calls fork(2) from a multi-threaded process.
30 # Test program stuck in uwrlck seen.
33 # Note that program erroneously calls exit(3) and not _exit(2).
39 sed '1,/^EOF/d' < $here/$0 > fork.c
40 mycc -o fork -Wall -Wextra -O2 -g fork.c -lpthread || exit 1
42 for i in `jot 100`; do
45 while ! pgrep -q fork; do
49 pgrep -q fork || break
52 if pgrep -q fork; then
58 rm -f /tmp/fork /tmp/fork.c
63 * Written by Love Hörnquist Åstrand <lha@NetBSD.org>, March 2003.
67 #include <sys/types.h>
80 static int thread_survived = 0;
83 print_pid(void *arg __unused)
88 if (parent != getpid()) {
103 r = pthread_create(&p, NULL, print_pid, NULL);
105 errx(1, "r = %d", r);
114 r = pthread_join(p, NULL);
116 errx(1, "r = %d", r);
117 if (thread_survived == 0)
118 errx(1, "thread did not survive in parent");
120 waitpid(fork_pid, &status, 0);
121 if (WIFEXITED(status) != 1)
122 printf("WIFEXITED(status) = %d\n", WIFEXITED(status));
123 if (WEXITSTATUS(status) != 0)
124 printf("WEXITSTATUS(status) = %d\n", WEXITSTATUS(status));
127 exit(thread_survived ? 1 : 0);