Symbol: sys_mq_setattr
sys/kern/init_sysent.c
531
{ AS(mq_setattr_args), 4, (sy_call_t *)sys_mq_setattr }, /* 514 = mq_setattr */
sys/sys/sysproto.h
1748
int sys_mq_setattr (struct sysmsg *sysmsg, const struct mq_setattr_args *);