kdump

早期freebsd实现

# Dump kmem statistics
#	@(#)kdump	8.1 (Berkeley) 6/10/93

set $last=75
set $seg=43

# kmem_hdr
define kmemhdr
	printf "\tINUSE\tCALLS\tMEMUSED\tLIMBLK\tMAPBLK\tMAXUSED\t\tLIMIT\n"
end

# pkmem <ptr>
define pkmem
	set $kp=(struct kmemstats *)$arg0
	set $n = (struct kmemstats *)$kp - (struct kmemstats *)kmemstats
	printf "%d:\t%d\t%d", $n, $kp->ks_inuse, $kp->ks_calls
	printf "\t0x%x\t%d", $kp->ks_memuse, $kp->ks_limblocks
	printf "\t%d\t0x%x\t\t%d\n", $kp->ks_mapblocks, $kp->ks_maxused, $kp->ks_limit
end

define kmemdump
	set $kp=(struct kmemstats *)(kmemstats + $arg0)
	kmemhdr
	pkmem $kp
end

define kdumpall
	set $i=0

	kmemhdr
	set $kp = (struct kmemstats *)kmemstats
	while ($i < $last)
		pkmem $kp
		set $kp++
		set $i++
	end
end