blob: 9e6235f1d34782da8ef46c1c536b142c8b7bae8e [file] [log] [blame]
lh9ed821d2023-04-07 01:36:19 -07001#include <dlfcn.h>
2#include <stdio.h>
3#include <stdlib.h>
4
5#include <link.h>
6
7
8#define TEST_FUNCTION do_test ()
9static int
10do_test (void)
11{
12 static const char modname[] = "tst-tlsmod2.so";
13 int result = 0;
14 int *foop;
15 int *foop2;
16 int (*fp) (int, int *);
17 void *h;
18 int i;
19 int modid = -1;
20
21 for (i = 0; i < 10; ++i)
22 {
23 h = dlopen (modname, RTLD_LAZY);
24 if (h == NULL)
25 {
26 printf ("cannot open '%s': %s\n", modname, dlerror ());
27 exit (1);
28 }
29
30 /* Dirty test code here: we peek into a private data structure.
31 We make sure that the module gets assigned the same ID every
32 time. The value of the first round is used. */
33 if (modid == -1)
34 modid = ((struct link_map *) h)->l_tls_modid;
35 else if (((struct link_map *) h)->l_tls_modid != modid)
36 {
37 printf ("round %d: modid now %zd, initially %d\n",
38 i, ((struct link_map *) h)->l_tls_modid, modid);
39 result = 1;
40 }
41
42 foop = dlsym (h, "foo");
43 if (foop == NULL)
44 {
45 printf ("cannot get symbol 'foo': %s\n", dlerror ());
46 exit (1);
47 }
48
49 *foop = 42 + i;
50
51 fp = dlsym (h, "in_dso");
52 if (fp == NULL)
53 {
54 printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
55 exit (1);
56 }
57
58 result |= fp (42 + i, foop);
59
60 foop2 = dlsym (h, "foo");
61 if (foop2 == NULL)
62 {
63 printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
64 exit (1);
65 }
66
67 if (foop != foop2)
68 {
69 puts ("address of 'foo' different the second time");
70 result = 1;
71 }
72 else if (*foop != 16)
73 {
74 puts ("foo != 16");
75 result = 1;
76 }
77
78 dlclose (h);
79 }
80
81 return result;
82}
83
84
85#include "../test-skeleton.c"