Back to index

glibc  2.9
Functions
restest1.c File Reference
#include <dlfcn.h>
#include <error.h>
#include <mcheck.h>
#include <stdio.h>
#include <stdlib.h>

Go to the source code of this file.

Functions

int main (void)
int foo (int a)

Function Documentation

int foo ( int  a)

Definition at line 16 of file preloadtest.c.

{
  return a;
}
int main ( void  )

Definition at line 8 of file restest1.c.

{
  void *h1;
  int (*fp1) (int);
  void *h2;
  int (*fp2) (int);
  int res1;
  int res2;

  mtrace ();

  h1 = dlopen ("testobj1.so", RTLD_LAZY);
  if (h1 == NULL)
    error (EXIT_FAILURE, 0, "while loading `%s': %s", "testobj1.so",
          dlerror ());

  h2 = dlopen ("testobj1_1.so", RTLD_LAZY);
  if (h1 == NULL)
    error (EXIT_FAILURE, 0, "while loading `%s': %s", "testobj1_1.so",
          dlerror ());

  fp1 = dlsym (h1, "obj1func1");
  if (fp1 == NULL)
    error (EXIT_FAILURE, 0, "getting `obj1func1' in `%s': %s",
          "testobj1.so", dlerror ());

  fp2 = dlsym (h2, "obj1func1");
  if (fp2 == NULL)
    error (EXIT_FAILURE, 0, "getting `obj1func1' in `%s': %s",
          "testobj1_1.so", dlerror ());

  res1 = fp1 (10);
  res2 = fp2 (10);
  printf ("fp1(10) = %d\nfp2(10) = %d\n", res1, res2);

  if (dlclose (h1) != 0)
    error (EXIT_FAILURE, 0, "cannot close testobj1.so: %s\n", dlerror ());
  if (dlclose (h2) != 0)
    error (EXIT_FAILURE, 0, "cannot close testobj1_1.so: %s\n", dlerror ());

  return res1 != 42 || res2 != 72;
}

Here is the call graph for this function: