gdb-best-friend/examples/python/caller_is/1.c

static void
foo (void)
{
}

static void
bar (void)
{
  foo ();
}

static void
baz (void)
{
  foo ();
}

int
main (int argc, char *argv[])
{
  baz ();
  bar ();

  return 0;
}