sclp_early_cmd
int sclp_early_cmd(sclp_cmdw_t cmd, void *sccb);
if (sclp_early_cmd(SCLP_CMDW_READ_CPU_INFO, sccb)) {
sclp_early_cmd(SCLP_CMDW_WRITE_EVENT_DATA, sccb);
sclp_early_cmd(SCLP_CMDW_WRITE_EVENT_DATA, sccb);
if (sclp_early_cmd(SCLP_CMDW_WRITE_EVENT_MASK, sccb))
if (sclp_early_cmd(commands[i], sccb))
rc = sclp_early_cmd(command, sccb);