dev/i386/fasttrap_isa.c

735 		 * on a return probe yet highly desirable for consistency.
783 fasttrap_usdt_args64(fasttrap_probe_t *probe, x86_saved_state64_t *regs64, int argc,
786 	int i, x, cap = MIN(argc, probe->ftp_nargs);
790 		x = probe->ftp_argmap[i];
806 fasttrap_usdt_args32(fasttrap_probe_t *probe, x86_saved_state32_t *regs32, int argc,
809 	int i, x, cap = MIN(argc, probe->ftp_nargs);
813 		x = probe->ftp_argmap[i];
973 	 * return probe fasttrap. In this case we need to kill the process
1041 		 * stack. If this is a function entry probe, we need
1054 			fasttrap_probe_t *probe = id->fti_probe;
1057 				dtrace_probe(dtrace_probeid_error, 0 /* state */, probe->ftp_id,
1062 				 * probe to help ustack() find the
1067 				dtrace_probe(probe->ftp_id, s1, s2,
1075 				 * an artificial probe meant to change
1077 				 * encounters the true probe.
1080 			} else if (probe->ftp_argmap == NULL) {
1081 				dtrace_probe(probe->ftp_id, s0, s1,
1086 				fasttrap_usdt_args32(probe, regs32,
1089 				dtrace_probe(probe->ftp_id, t[0], t[1],
1094 			if (probe->ftp_prov->ftp_provider_type == DTFTP_PROVIDER_ONESHOT) {
1117 	 * If there's an is-enabled probe connected to this tracepoint it
1120 	 * linked. As this probe is, in fact, enabled, we need to stuff 1
1124 	 * probe was on some other instruction, but that would be a rather
1531 	 * return probe fasttrap. In this case we need to kill the process
1596 			fasttrap_probe_t *probe = id->fti_probe;
1599 				dtrace_probe(dtrace_probeid_error, 0 /* state */, probe->ftp_id,
1604 				 * probe to help ustack() find the
1609 				dtrace_probe(probe->ftp_id, regs64->rdi,
1618 				 * an artificial probe meant to change
1620 				 * encounters the true probe.
1623 			} else if (probe->ftp_argmap == NULL) {
1624 				dtrace_probe(probe->ftp_id, regs64->rdi,
1630 				fasttrap_usdt_args64(probe, regs64,
1633 				dtrace_probe(probe->ftp_id, t[0], t[1],
1638 			if (probe->ftp_prov->ftp_provider_type == DTFTP_PROVIDER_ONESHOT) {
1661 	 * If there's an is-enabled probe connected to this tracepoint it
1664 	 * linked. As this probe is, in fact, enabled, we need to stuff 1
1668 	 * probe was on some other instruction, but that would be a rather