powerpc: Fix fesetexceptflag [BZ#17885]
[glibc.git] / nptl / tst-atfork2.c
blob25af212a1641d2c8d80b0ef379715c2c7a5a1fed
1 /* Copyright (C) 2003-2015 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <dlfcn.h>
20 #include <errno.h>
21 #include <mcheck.h>
22 #include <pthread.h>
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <unistd.h>
26 #include <sys/wait.h>
29 /* Must be exported. */
30 int val;
32 static void
33 prepare (void)
35 val *= 2;
38 static void
39 parent (void)
41 val += 4;
44 static void
45 child (void)
47 val += 8;
51 static int
52 do_test (void)
54 mtrace ();
56 if (pthread_atfork (prepare, parent, child) != 0)
58 puts ("do_test: atfork failed");
59 exit (1);
62 void *h = dlopen ("tst-atfork2mod.so", RTLD_LAZY);
63 if (h == NULL)
65 printf ("dlopen failed: %s\n", dlerror ());
66 exit (1);
69 /* First trial of fork. */
70 pid_t pid = fork ();
71 if (pid == -1)
73 puts ("1st fork failed");
74 exit (1);
77 if (pid == 0)
79 /* Child. */
80 if (val != 80)
82 printf ("1st: expected val=%d, got %d\n", 80, val);
83 exit (2);
86 exit (0);
89 /* Parent. */
90 if (val != 24)
92 printf ("1st: expected val=%d, got %d\n", 24, val);
93 exit (1);
96 int status;
97 if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
99 puts ("1st waitpid failed");
100 exit (1);
103 if (status != 0)
104 exit (status);
106 puts ("unloading now");
108 /* Unload the module. */
109 if (dlclose (h) != 0)
111 puts ("dlclose failed");
112 exit (1);
115 puts ("2nd fork");
117 /* Second fork trial. */
118 val = 1;
119 pid = fork ();
120 if (pid == -1)
122 puts ("2nd fork failed");
123 exit (1);
126 if (pid == 0)
128 /* Child. */
129 if (val != 10)
131 printf ("2nd: expected val=%d, got %d\n", 10, val);
132 exit (3);
135 exit (0);
138 /* Parent. */
139 if (val != 6)
141 printf ("2nd: expected val=%d, got %d\n", 6, val);
142 exit (1);
145 if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
147 puts ("2nd waitpid failed");
148 exit (1);
151 if (status != 0)
152 exit (status);
154 return 0;
157 #define TEST_FUNCTION do_test ()
158 #include "../test-skeleton.c"