Symbol: sys_setpgid
sys/kern/init_sysent.c
99
{ AS(setpgid_args), 4, (sy_call_t *)sys_setpgid }, /* 82 = setpgid */
sys/sys/sysproto.h
1539
int sys_setpgid (struct sysmsg *sysmsg, const struct setpgid_args *);