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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>
#include <link.h>
#include <tls.h>
#define TEST_FUNCTION do_test ()
static int
do_test (void)
{
#ifdef USE_TLS
static const char modname1[] = "tst-tlsmod3.so";
static const char modname2[] = "tst-tlsmod4.so";
int result = 0;
int (*fp1) (void);
int (*fp2) (int, int *);
void *h1;
void *h2;
int i;
size_t modid1 = (size_t) -1;
size_t modid2 = (size_t) -1;
int *bazp;
for (i = 0; i < 10; ++i)
{
h1 = dlopen (modname1, RTLD_LAZY);
if (h1 == NULL)
{
printf ("cannot open '%s': %s\n", modname1, dlerror ());
exit (1);
}
/* Dirty test code here: we peek into a private data structure.
We make sure that the module gets assigned the same ID every
time. The value of the first round is used. */
if (modid1 == (size_t) -1)
modid1 = ((struct link_map *) h1)->l_tls_modid;
else if (((struct link_map *) h1)->l_tls_modid != modid1)
{
printf ("round %d: modid now %zd, initially %zd\n",
i, ((struct link_map *) h1)->l_tls_modid, modid1);
result = 1;
}
fp1 = dlsym (h1, "in_dso2");
if (fp1 == NULL)
{
printf ("cannot get symbol 'in_dso2' in %s\n", modname1);
exit (1);
}
result |= fp1 ();
h2 = dlopen (modname2, RTLD_LAZY);
if (h2 == NULL)
{
printf ("cannot open '%s': %s\n", modname2, dlerror ());
exit (1);
}
/* Dirty test code here: we peek into a private data structure.
We make sure that the module gets assigned the same ID every
time. The value of the first round is used. */
if (modid2 == (size_t) -1)
modid2 = ((struct link_map *) h1)->l_tls_modid;
else if (((struct link_map *) h1)->l_tls_modid != modid2)
{
printf ("round %d: modid now %zd, initially %zd\n",
i, ((struct link_map *) h1)->l_tls_modid, modid2);
result = 1;
}
bazp = dlsym (h2, "baz");
if (bazp == NULL)
{
printf ("cannot get symbol 'baz' in %s\n", modname2);
exit (1);
}
*bazp = 42 + i;
fp2 = dlsym (h2, "in_dso");
if (fp2 == NULL)
{
printf ("cannot get symbol 'in_dso' in %s\n", modname2);
exit (1);
}
result |= fp2 (42 + i, bazp);
dlclose (h1);
dlclose (h2);
h1 = dlopen (modname1, RTLD_LAZY);
if (h1 == NULL)
{
printf ("cannot open '%s': %s\n", modname1, dlerror ());
exit (1);
}
/* Dirty test code here: we peek into a private data structure.
We make sure that the module gets assigned the same ID every
time. The value of the first round is used. */
if (((struct link_map *) h1)->l_tls_modid != modid1)
{
printf ("round %d: modid now %zd, initially %zd\n",
i, ((struct link_map *) h1)->l_tls_modid, modid1);
result = 1;
}
fp1 = dlsym (h1, "in_dso2");
if (fp1 == NULL)
{
printf ("cannot get symbol 'in_dso2' in %s\n", modname1);
exit (1);
}
result |= fp1 ();
h2 = dlopen (modname2, RTLD_LAZY);
if (h2 == NULL)
{
printf ("cannot open '%s': %s\n", modname2, dlerror ());
exit (1);
}
/* Dirty test code here: we peek into a private data structure.
We make sure that the module gets assigned the same ID every
time. The value of the first round is used. */
if (((struct link_map *) h1)->l_tls_modid != modid2)
{
printf ("round %d: modid now %zd, initially %zd\n",
i, ((struct link_map *) h1)->l_tls_modid, modid2);
result = 1;
}
bazp = dlsym (h2, "baz");
if (bazp == NULL)
{
printf ("cannot get symbol 'baz' in %s\n", modname2);
exit (1);
}
*bazp = 62 + i;
fp2 = dlsym (h2, "in_dso");
if (fp2 == NULL)
{
printf ("cannot get symbol 'in_dso' in %s\n", modname2);
exit (1);
}
result |= fp2 (62 + i, bazp);
/* This time the dlclose calls are in reverse order. */
dlclose (h2);
dlclose (h1);
}
return result;
#else
return 0;
#endif
}
#include "../test-skeleton.c"
|
