glibc/dlfcn/failtestmod.c

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#include <dlfcn.h>
#include <stdio.h>
extern void constr (void) __attribute__ ((__constructor__));
void
__attribute__ ((__constructor__))
constr (void)
{
void *handle;
/* Open the library. */
handle = dlopen (NULL, RTLD_NOW);
if (handle == NULL)
{
puts ("Cannot get handle to own object");
return;
}
/* Get a symbol. */
dlsym (handle, "main");
puts ("called dlsym() to get main");
dlclose (handle);
}