tag	line	file	source code
SIGHUP	49	kernel/chr_drv/pty.c	kill_pg(tty->link->pgrp,SIGHUP,1);
SIGHUP	121	kernel/chr_drv/serial.c	kill_pg(info->tty->pgrp,SIGHUP,1);
SIGHUP	406	kernel/chr_drv/tty_ioctl.c	kill_pg(tty->pgrp, SIGHUP, 0);
SIGHUP	332	kernel/exit.c	kill_pg(current->pgrp,SIGHUP,1);
SIGHUP	369	kernel/exit.c	kill_pg(p->pgrp,SIGHUP,1);
SIGHUP	380	kernel/exit.c	kill_pg(tty->pgrp, SIGHUP, 1);