static x30_pkg.x30_util.BetterThreadLocal<L> stackInfo_tl;

static x30_pkg.x30_util.BetterThreadLocal<L> stackInfo_tl() {
  if (stackInfo_tl == null)
    stackInfo_tl = vm_generalMap_getOrCreate("stackInfo_tl",
      () -> new x30_pkg.x30_util.BetterThreadLocal());
  ret stackInfo_tl;
}