tag	line	file	source code
sys_wait4	125	include/linux/sys.h	extern int sys_wait4();
sys_wait4	172	include/linux/sys.h	sys_wait4, sys_swapoff, sys_sysinfo, sys_ipc, sys_fsync, sys_sigreturn,
sys_wait4	592	kernel/exit.c	return sys_wait4(pid, stat_addr, options, NULL);