/*
 * ISA 563, Spring 2011
 * Copyleft by Muhammad Abdulla
 */

#include <stdio.h>

#define __USE_GNU
#include <dlfcn.h>

/*
 * imalloc.c -- demonstrates library interposition of malloc function
 */

void *malloc(size_t size)
{
   static void * (*func)();

   if(!func) {
      func = (void *(*)()) dlsym(RTLD_NEXT, "malloc");
   }

   printf("malloc is called with size %d\n", size);     

   return(func(size));
}