71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
#include <dlfcn.h>
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#include <mcheck.h>
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#include <stdio.h>
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#include <stdlib.h>
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int
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main (void)
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{
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void *h1;
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void *h2;
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int (*fp) (void);
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mtrace ();
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/* Open the two objects. */
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h1 = dlopen ("reldepmod5.so", RTLD_LAZY);
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if (h1 == NULL)
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{
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printf ("cannot open reldepmod5.so: %s\n", dlerror ());
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exit (1);
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}
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h2 = dlopen ("reldepmod6.so", RTLD_LAZY);
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if (h2 == NULL)
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{
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printf ("cannot open reldepmod6.so: %s\n", dlerror ());
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exit (1);
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}
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/* Get the address of the variable in reldepmod1.so. */
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fp = dlsym (h2, "bar");
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if (fp == NULL)
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{
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printf ("cannot get address of \"bar\": %s\n", dlerror ());
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exit (1);
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}
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/* Call the function. */
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puts ("calling fp for the first time");
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if (fp () != 0)
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{
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puts ("function \"call_me\" returned wrong result");
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exit (1);
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}
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/* Now close the first object. It must still be around since we have
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an implicit dependency. */
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if (dlclose (h1) != 0)
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{
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printf ("closing h1 failed: %s\n", dlerror ());
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exit (1);
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}
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/* Calling the function must still work. */
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puts ("calling fp for the second time");
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if (fp () != 0)
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{
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puts ("function \"call_me\" the second time returned wrong result");
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exit (1);
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}
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puts ("second call suceeded as well");
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/* Close the second object, we are done. */
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if (dlclose (h2) != 0)
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{
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printf ("closing h2 failed: %s\n", dlerror ());
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exit (1);
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}
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return 0;
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}
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