1#include <dlfcn.h>
2#include <pthread.h>
3#include <stdio.h>
4#include <stdlib.h>
5
6
7static void *
8start_routine (void *args)
9{
10 int i;
11 void **addrs = (void **) args;
12 for (i = 0; i < 10000; ++i)
13 addrs[i % 1024] = dlsym (NULL, name: "does_not_exist");
14
15 return addrs;
16}
17
18
19static int
20do_test (void)
21{
22 pthread_t tid1, tid2, tid3;
23
24 void *addrs1[1024];
25 void *addrs2[1024];
26 void *addrs3[1024];
27
28 if (pthread_create (newthread: &tid1, NULL, start_routine: start_routine, arg: addrs1) != 0)
29 {
30 puts (s: "1st create failed");
31 exit (1);
32 }
33 if (pthread_create (newthread: &tid2, NULL, start_routine: start_routine, arg: addrs2) != 0)
34 {
35 puts (s: "2nd create failed");
36 exit (1);
37 }
38 if (pthread_create (newthread: &tid3, NULL, start_routine: start_routine, arg: addrs3) != 0)
39 {
40 puts (s: "3rd create failed");
41 exit (1);
42 }
43
44 if (pthread_join (th: tid1, NULL) != 0)
45 {
46 puts (s: "1st join failed");
47 exit (1);
48 }
49 if (pthread_join (th: tid2, NULL) != 0)
50 {
51 puts (s: "2nd join failed");
52 exit (1);
53 }
54 if (pthread_join (th: tid3, NULL) != 0)
55 {
56 puts (s: "2nd join failed");
57 exit (1);
58 }
59
60 return 0;
61}
62
63
64#define TEST_FUNCTION do_test ()
65#include "../test-skeleton.c"
66

source code of glibc/nptl/tst-dlsym1.c