seamcall_prerr
return seamcall_prerr(fn, args);
ret = seamcall_prerr(TDH_SYS_CONFIG, &args);
return seamcall_prerr(TDH_SYS_KEY_CONFIG, &args);
ret = seamcall_prerr(TDH_SYS_SHUTDOWN, &args);
ret = seamcall_prerr(TDH_SYS_UPDATE, &args);
ret = seamcall_prerr(TDH_SYS_LP_INIT, &args);
ret = seamcall_prerr(TDH_SYS_INIT, &args);