docs/depmod: and example of depmod in shell/sed/awk...

This commit is contained in:
Denis Vlasenko 2008-05-24 20:54:14 +00:00
parent 8e2c9e1518
commit bd23fbbd0a

57
docs/depmod Normal file
View File

@ -0,0 +1,57 @@
#!/bin/sh
#
# Simple depmod, use to generate modprobe.conf
#
# Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
#
# Licensed under GPLv2
#
local BASE="${1:-/usr/lib/modules}"
find "$BASE" -name '*.ko.gz' | while read I ; do
N=`basename "$I" '.ko.gz'`
echo -n "@$N"
zcat "$I" | strings | grep '^depends=' | sed -e 's/^depends=$//' -e 's/^depends=/,/' -e 's/,/ @/g'
done | awk '
{
# modules which has no dependencies are resolved
if ( NF == 1 ) { res[$1] = ""; next }
# others have to be resolved based on those which already resolved
i = $1; $1 = ""; deps[i] = $0; ++ndeps
}
END {
# resolve implicit dependencies
while ( ndeps ) for (mod in deps) {
if ( index(deps[mod], "@") > 0 ) {
$0 = deps[mod]
for ( i=1; i<=NF; ++i ) {
if ( substr($i,1,1) == "@" ) {
if ( $i in res ) {
$i = res[$i] " " substr($i,2)
}
}
}
deps[mod] = $0
} else {
res[mod] = deps[mod]
delete deps[mod]
--ndeps
}
}
# output dependencies in modules.dep format
for ( mod in res ) {
$0 = res[mod]
s = ""
delete a
for ( i=1; i<=NF; ++i ) {
if ( ! ($i in a) ) {
a[$i] = $i
s = " ," $i s
}
}
print "," substr(mod,2) ":" s
}
}
' | sort | sed -r -e "s!,([^,: ]*)!/usr/lib/modules/\\1.ko.gz!g"