libmallocwrap/mallocwrap.c

   1 #define _GNU_SOURCE
   2 #include <dlfcn.h>
   3 #include <sys/types.h>
   4 #include <stdio.h>
   5
   6 #include "marker.h"
   7
   8 void *(*plibc_malloc)(size_t size) = NULL;
   9
  10 void *malloc(size_t size)
  11 {
  12         if(plibc_malloc == NULL) {
  13                 plibc_malloc = dlsym(RTLD_NEXT, "malloc");
  14                 if(plibc_malloc == NULL) {
  15                         fprintf(stderr, "mallocwrap: unable to find malloc\n");
  16                         return NULL;
  17                 }
  18         }
  19
  20         trace_mark(ust, malloc, "%d", (int)size);
  21
  22         fprintf(stderr, "mallocating size %d\n", size);
  23         return plibc_malloc(size);
  24 }
  25
  26 MARKER_LIB