1 files changed, 30 insertions, 0 deletions
diff --git a/sys/compat/freebsd32/freebsd32_misc.c b/sys/compat/freebsd32/freebsd32_misc.c
index 56bd02a..7a7dc2e 100644
--- a/sys/compat/freebsd32/freebsd32_misc.c
+++ b/sys/compat/freebsd32/freebsd32_misc.c
@@ -3084,6 +3084,36 @@ syscall32_module_handler(struct module *mod, int what, void *arg)
 	}
 }
 
+int
+syscall32_helper_register(struct syscall_helper_data *sd)
+{
+	struct syscall_helper_data *sd1;
+	int error;
+
+	for (sd1 = sd; sd1->syscall_no != NO_SYSCALL; sd1++) {
+		error = syscall32_register(&sd1->syscall_no, &sd1->new_sysent,
+		    &sd1->old_sysent);
+		if (error != 0) {
+			syscall32_helper_unregister(sd);
+			return (error);
+		}
+		sd1->registered = 1;
+	}
+	return (0);
+}
+
+int
+syscall32_helper_unregister(struct syscall_helper_data *sd)
+{
+	struct syscall_helper_data *sd1;
+
+	for (sd1 = sd; sd1->registered != 0; sd1++) {
+		syscall32_deregister(&sd1->syscall_no, &sd1->old_sysent);
+		sd1->registered = 0;
+	}
+	return (0);
+}
+
 register_t *
 freebsd32_copyout_strings(struct image_params *imgp)
 {