DTRACEIOC
ioctl(fd, DTRACEIOC | ioc, addr);
#define DTRACEIOC_PROVIDER (DTRACEIOC | 1) /* provider query */
#define DTRACEIOC_PROBES (DTRACEIOC | 2) /* probe query */
#define DTRACEIOC_BUFSNAP (DTRACEIOC | 4) /* snapshot buffer */
#define DTRACEIOC_PROBEMATCH (DTRACEIOC | 5) /* match probes */
#define DTRACEIOC_ENABLE (DTRACEIOC | 6) /* enable probes */
#define DTRACEIOC_AGGSNAP (DTRACEIOC | 7) /* snapshot agg. */
#define DTRACEIOC_EPROBE (DTRACEIOC | 8) /* get eprobe desc. */
#define DTRACEIOC_PROBEARG (DTRACEIOC | 9) /* get probe arg */
#define DTRACEIOC_CONF (DTRACEIOC | 10) /* get config. */
#define DTRACEIOC_STATUS (DTRACEIOC | 11) /* get status */
#define DTRACEIOC_GO (DTRACEIOC | 12) /* start tracing */
#define DTRACEIOC_STOP (DTRACEIOC | 13) /* stop tracing */
#define DTRACEIOC_AGGDESC (DTRACEIOC | 15) /* get agg. desc. */
#define DTRACEIOC_FORMAT (DTRACEIOC | 16) /* get format str */
#define DTRACEIOC_DOFGET (DTRACEIOC | 17) /* get DOF */
#define DTRACEIOC_REPLICATE (DTRACEIOC | 18) /* replicate enab */