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bb4cb252 UD |
1 | #include <dlfcn.h> |
2 | #include <stdio.h> | |
3 | #include <stdlib.h> | |
4 | ||
5 | #include <link.h> | |
bb4cb252 UD |
6 | |
7 | ||
bb4cb252 UD |
8 | static int |
9 | do_test (void) | |
10 | { | |
bb4cb252 UD |
11 | static const char modname[] = "tst-tlsmod2.so"; |
12 | int result = 0; | |
13 | int *foop; | |
14 | int *foop2; | |
15 | int (*fp) (int, int *); | |
16 | void *h; | |
17 | int i; | |
18 | int modid = -1; | |
19 | ||
20 | for (i = 0; i < 10; ++i) | |
21 | { | |
22 | h = dlopen (modname, RTLD_LAZY); | |
23 | if (h == NULL) | |
24 | { | |
25 | printf ("cannot open '%s': %s\n", modname, dlerror ()); | |
26 | exit (1); | |
27 | } | |
28 | ||
29 | /* Dirty test code here: we peek into a private data structure. | |
30 | We make sure that the module gets assigned the same ID every | |
31 | time. The value of the first round is used. */ | |
32 | if (modid == -1) | |
33 | modid = ((struct link_map *) h)->l_tls_modid; | |
34 | else if (((struct link_map *) h)->l_tls_modid != modid) | |
35 | { | |
d347a4ab | 36 | printf ("round %d: modid now %zd, initially %d\n", |
bb4cb252 UD |
37 | i, ((struct link_map *) h)->l_tls_modid, modid); |
38 | result = 1; | |
39 | } | |
40 | ||
41 | foop = dlsym (h, "foo"); | |
42 | if (foop == NULL) | |
43 | { | |
44 | printf ("cannot get symbol 'foo': %s\n", dlerror ()); | |
45 | exit (1); | |
46 | } | |
47 | ||
48 | *foop = 42 + i; | |
49 | ||
50 | fp = dlsym (h, "in_dso"); | |
51 | if (fp == NULL) | |
52 | { | |
53 | printf ("cannot get symbol 'in_dso': %s\n", dlerror ()); | |
54 | exit (1); | |
55 | } | |
56 | ||
57 | result |= fp (42 + i, foop); | |
58 | ||
59 | foop2 = dlsym (h, "foo"); | |
60 | if (foop2 == NULL) | |
61 | { | |
62 | printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ()); | |
63 | exit (1); | |
64 | } | |
65 | ||
66 | if (foop != foop2) | |
67 | { | |
68 | puts ("address of 'foo' different the second time"); | |
69 | result = 1; | |
70 | } | |
71 | else if (*foop != 16) | |
72 | { | |
73 | puts ("foo != 16"); | |
74 | result = 1; | |
75 | } | |
76 | ||
77 | dlclose (h); | |
78 | } | |
79 | ||
80 | return result; | |
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81 | } |
82 | ||
83 | ||
36fe25fd | 84 | #include <support/test-driver.c> |