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#define ASSERT(X)       if (!(X)) abort ();

#define NOCHK __attribute__ ((no_instrument_function))

int entry_calls, exit_calls;

void (*last_fn_entered)();

void (*last_fn_exited)();

__attribute__ ((noinline))

int main () NOCHK;

__attribute__ ((noinline))

void foo ()

{

  ASSERT (last_fn_entered == foo);

}

__attribute__ ((noinline))

static void foo2 ()

{

  ASSERT (entry_calls == 1 && exit_calls == 0);

  ASSERT (last_fn_entered == foo2);

  foo ();

  ASSERT (entry_calls == 2 && exit_calls == 1);

  ASSERT (last_fn_entered == foo);

  ASSERT (last_fn_exited == foo);

}

__attribute__ ((noinline))

void nfoo (void) NOCHK;

void nfoo ()

{

  ASSERT (entry_calls == 2 && exit_calls == 2);

  ASSERT (last_fn_entered == foo);

  ASSERT (last_fn_exited == foo2);

  foo ();

  ASSERT (entry_calls == 3 && exit_calls == 3);

  ASSERT (last_fn_entered == foo);

  ASSERT (last_fn_exited == foo);

}

int main ()

{

  ASSERT (entry_calls == 0 && exit_calls == 0);

  foo2 ();

  ASSERT (entry_calls == 2 && exit_calls == 2);

  ASSERT (last_fn_entered == foo);

  ASSERT (last_fn_exited == foo2);

  nfoo ();

  ASSERT (entry_calls == 3 && exit_calls == 3);

  ASSERT (last_fn_entered == foo);

  return 0;

}

void __cyg_profile_func_enter (void (*fn)(), void (*parent)()) NOCHK;

void __cyg_profile_func_exit (void (*fn)(), void (*parent)()) NOCHK;

__attribute__ ((noinline))

void __cyg_profile_func_enter (void (*fn)(), void (*parent)())

{

  entry_calls++;

  last_fn_entered = fn;

}

__attribute__ ((noinline))

void __cyg_profile_func_exit (void (*fn)(), void (*parent)())

{

  exit_calls++;

  last_fn_exited = fn;

}