dtrace_blksuword32
extern int dtrace_blksuword32(uintptr_t, uint32_t *, int);
if (dtrace_blksuword32(rp->r_g7, &tp->ftt_instr, 1) == -1) {
ret = dtrace_blksuword32(addr, data, 0);
ret = dtrace_blksuword32(addr, data, 0);
ret = dtrace_blksuword32(addr, data, 0);
ret = dtrace_blksuword32(addr, data, 0);