Function cleanup_handler1

test/pthread/test_pthread_cleanup.c:17–22

int32_t cleanup_state = 1;

static void cleanup_handler1(void *arg) {
  cleanup_state <<= 2;
  // Perform non-commutative arithmetic to a global var that encodes the cleanup stack order ops.
  cleanup_state *= (intptr_t)arg;
  printf("Called clean-up handler 1 with arg %p (state=%d)\n", arg, cleanup_state);
}

static void cleanup_handler2(void *arg) {
  cleanup_state <<= 3;