libmallocwrap/mallocwrap.c

   1 #define _GNU_SOURCE
   2 #include <dlfcn.h>
   3 #include <sys/types.h>
   4 #include <stdio.h>
   5
   6 void *(*plibc_malloc)(size_t size) = NULL;
   7
   8 void *malloc(size_t size)
   9 {
  10         if(plibc_malloc == NULL) {
  11                 plibc_malloc = dlsym(RTLD_NEXT, "malloc");
  12                 if(plibc_malloc == NULL) {
  13                         fprintf(stderr, "mallocwrap: unable to find malloc\n");
  14                         return NULL;
  15                 }
  16         }
  17         fprintf(stderr, "mallocating size %d\n", size);
  18         return plibc_malloc(size);
  19 }