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86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <link.h>
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#define TEST_FUNCTION do_test ()
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static int
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do_test (void)
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{
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static const char modname[] = "tst-tlsmod2.so";
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int result = 0;
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int *foop;
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int *foop2;
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int (*fp) (int, int *);
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void *h;
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int i;
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int modid = -1;
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for (i = 0; i < 10; ++i)
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{
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h = dlopen (modname, RTLD_LAZY);
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if (h == NULL)
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{
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printf ("cannot open '%s': %s\n", modname, dlerror ());
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exit (1);
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}
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/* Dirty test code here: we peek into a private data structure.
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We make sure that the module gets assigned the same ID every
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time. The value of the first round is used. */
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if (modid == -1)
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modid = ((struct link_map *) h)->l_tls_modid;
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else if (((struct link_map *) h)->l_tls_modid != modid)
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{
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printf ("round %d: modid now %zd, initially %d\n",
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i, ((struct link_map *) h)->l_tls_modid, modid);
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result = 1;
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}
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foop = dlsym (h, "foo");
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if (foop == NULL)
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{
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printf ("cannot get symbol 'foo': %s\n", dlerror ());
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exit (1);
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}
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*foop = 42 + i;
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fp = dlsym (h, "in_dso");
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if (fp == NULL)
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{
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printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
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exit (1);
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}
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result |= fp (42 + i, foop);
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foop2 = dlsym (h, "foo");
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if (foop2 == NULL)
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{
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printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
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exit (1);
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}
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if (foop != foop2)
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{
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puts ("address of 'foo' different the second time");
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result = 1;
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}
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else if (*foop != 16)
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{
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puts ("foo != 16");
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result = 1;
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}
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dlclose (h);
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}
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return result;
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}
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#include "../test-skeleton.c"
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