Capturing Backtrace on memory allocation ? about tcmalloc HOT 3 CLOSED

#include <dlfcn.h>
#include <execinfo.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <malloc.h>


void *
malloc (size_t size)
{
  const char *message = "malloc called\n";
  write (STDOUT_FILENO, message, strlen (message));
  void *next = dlsym (RTLD_NEXT, "malloc");
  return ((__typeof__ (malloc) *) next) (size);
}

int
main (void)
{
  /* This calls malloc.  */
  puts ("First call to backtrace.");
  void *buffer[10];
  backtrace (buffer, 10);
  puts ("First call to backtrace.");
  backtrace (buffer, 10);
  puts ("First call to backtrace.");
  backtrace (buffer, 10);
  /* This does not.  */
  puts ("Second call to backtrace.");
  backtrace (buffer, 10);
  malloc(10);
}

 g++ -g pop.cpp -lstdc++ -Wl,--no-as-needed -ldl -ltcmalloc -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free

malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
malloc called
First call to backtrace.
malloc called
First call to backtrace.
First call to backtrace.
Second call to backtrace.
malloc called