1 files changed, 6 insertions, 0 deletions

diff --git a/sys/kern/subr_syscall.c b/sys/kern/subr_syscall.c
index 070ba281cbaf..292b942d4d94 100644
--- a/sys/kern/subr_syscall.c
+++ b/sys/kern/subr_syscall.c
@@ -85,6 +85,8 @@ syscallenter(struct thread *td, struct syscall_args *sa)
 		STOPEVENT(p, S_SCE, sa->narg);
 		if (p->p_flag & P_TRACED && p->p_stops & S_PT_SCE) {
 			PROC_LOCK(p);
+			td->td_dbg_sc_code = sa->code;
+			td->td_dbg_sc_narg = sa->narg;
 			ptracestop((td), SIGTRAP);
 			PROC_UNLOCK(p);
 		}
@@ -94,6 +96,10 @@ syscallenter(struct thread *td, struct syscall_args *sa)
 			 * debugger modified registers or memory.
 			 */
 			error = (p->p_sysent->sv_fetch_syscall_args)(td, sa);
+			PROC_LOCK(p);
+			td->td_dbg_sc_code = sa->code;
+			td->td_dbg_sc_narg = sa->narg;
+			PROC_UNLOCK(p);
 #ifdef KTRACE
 			if (KTRPOINT(td, KTR_SYSCALL))
 				ktrsyscall(sa->code, sa->narg, sa->args);