1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/* Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* This test checks that TLS in a dlopened object works when first accessed
from a signal handler. */
#include <dlfcn.h>
#include <pthread.h>
#include <semaphore.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
void *
spin (void *ignored)
{
while (1)
{
/* busywork */
free (malloc (128));
}
/* never reached */
return NULL;
}
int
do_test (void)
{
pthread_t th[10];
for (int i = 0; i < 10; ++i)
{
if (pthread_create (&th[i], NULL, spin, NULL))
{
puts ("pthread_create failed");
exit (1);
}
}
#define NITERS 75
for (int i = 0; i < NITERS; ++i)
{
void *h = dlopen ("tst-tls7mod.so", RTLD_LAZY);
if (h == NULL)
{
puts ("dlopen failed");
exit (1);
}
void (*action) (int, siginfo_t *, void *) = dlsym (h, "action");
if (action == NULL)
{
puts ("dlsym for action failed");
exit (1);
}
struct sigaction sa;
sa.sa_sigaction = action;
sigemptyset (&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
if (sigaction (SIGUSR1, &sa, NULL))
{
puts ("sigaction failed");
exit (1);
}
sem_t sem;
if (sem_init (&sem, 0, 0))
{
puts ("sem_init failed");
}
sigval_t val;
val.sival_ptr = &sem;
for (int i = 0; i < 10; ++i)
{
if (pthread_sigqueue (th[i], SIGUSR1, val))
{
puts ("pthread_sigqueue failed");
}
}
for (int i = 0; i < 10; ++i)
{
if (sem_wait (&sem))
{
puts ("sem_wait failed");
}
}
if (dlclose (h))
{
puts ("dlclose failed");
exit (1);
}
}
return 0;
}
#define TIMEOUT 4
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
