Allow abort PLT references in libc.so for SH.
[glibc.git] / rt / tst-shm-cancel.c
blobed1d7b8b37def65e48b2fd61d0c06797bf8cb019
1 /* Test for shm_open cancellation handling: BZ #18243.
2 Copyright (C) 2016-2017 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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 <pthread.h>
20 #include <sys/mman.h>
21 #include <semaphore.h>
22 #include <stdio.h>
23 #include <fcntl.h>
24 #include <unistd.h>
25 #include <errno.h>
26 #include <stdlib.h>
28 static sem_t sem; /* Use to sync with thread start. */
29 static const char shm_name[] = "/glibc-shm_open-cancel";
31 static void
32 remove_shm (int status, void *arg)
34 shm_unlink (shm_name);
37 static void *
38 tf (void *arg)
40 pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, 0);
42 if (sem_wait (&sem) != 0)
44 printf ("error: sem_wait failed: %m");
45 exit (1);
48 if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, 0) != 0)
50 printf ("error: pthread_setcancelstate failed: %m");
51 exit (1);
54 /* Neither sem_unlink or sem_open should act on thread cancellation. */
55 shm_unlink (shm_name);
56 on_exit (remove_shm, NULL);
58 int fd = shm_open (shm_name, O_CREAT, 0600);
59 if (fd == -1)
61 int exit_code;
62 if (errno == ENOSYS || errno == EACCES)
63 exit_code = 77;
64 else
65 exit_code = 1;
66 exit (exit_code);
69 if (pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, 0) != 0)
71 printf ("error: pthread_setcancelstate failed: %m");
72 exit (1);
75 if (close (fd) != 0)
77 printf ("error: pthread_setcancelstate failed: %m");
78 exit (1);
81 return NULL;
84 static int
85 do_test (void)
87 pthread_t td;
89 if (sem_init (&sem, 0, 0))
91 printf ("error: sem_init failed: %m\n");
92 exit (1);
95 if (pthread_create (&td, NULL, tf, NULL) != 0)
97 printf ("error: pthread_create failed: %m\n");
98 exit (1);
101 if (pthread_cancel (td) != 0)
103 printf ("error: pthread_cancel failed: %m\n");
104 exit (1);
107 if (sem_post (&sem) != 0)
109 printf ("error: sem_post failed: %m\n");
110 exit (1);
113 void *r;
114 if (pthread_join (td, &r) != 0)
116 printf ("error: pthread_join failed: %m\n");
117 exit (1);
120 if (r == PTHREAD_CANCELED)
122 puts ("error: pthread_join returned PTHREAD_CANCELED");
123 exit (1);
126 return 0;
129 #define TEST_FUNCTION do_test ()
130 #include <test-skeleton.c>