tag	line	file	source code
pr_pgrp	1060	fs/binfmt_elf.c	psinfo.pr_pgrp = prstatus.pr_pgrp = current->pgrp;
pr_pgrp	52	include/linux/elfcore.h	pid_t  pr_pgrp;
pr_pgrp	76	include/linux/elfcore.h	pid_t  pr_pid, pr_ppid, pr_pgrp, pr_sid;