utils.c

#include <unistd.h>
#include <execinfo.h>

void print_backtrace () {
  void *array[10];
  size_t size;

  // get void*'s for all entries on the stack
  size = backtrace(array, 10);

  // print out all the frames to stderr
  backtrace_symbols_fd(array, size, STDERR_FILENO);
}

utils.h

#ifndef UTILS_H
#define UTILS_H

void print_backtrace ();

#endif /* ifndef UTILS_H */