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#! /bin/bash
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Dir=$1
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List=$2
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Dest="extra"
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# Destination was specified on the command line
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test -n "$3" && Dest="$3"
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pushd $Dir
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rm -rf modnames
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find . -name "*.ko" -type f > modnames
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# Look through all of the modules, and throw any that have a dependency in
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# our list into the list as well.
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rm -rf dep.list dep2.list
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rm -rf req.list req2.list
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touch dep.list req.list
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cp "$List" .
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# This variable needs to be exported because it is used in sub-script
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# executed by xargs
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export ListName=$(basename "$List")
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# NB: this loop runs 2000+ iterations. Try to be fast.
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NPROC=`nproc`
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[ -z "$NPROC" ] && NPROC=1
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cat modnames | xargs -r -n1 -P $NPROC sh -c '
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dep=$1
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depends=`modinfo $dep | sed -n -e "/^depends/ s/^depends:[ \t]*//p"`
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[ -z "$depends" ] && exit
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for mod in ${depends//,/ }
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do
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match=$(grep "^$mod.ko" "$ListName")
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[ -z "$match" ] && continue
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# check if the module we are looking at is in mod-extra too.
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# if so we do not need to mark the dep as required.
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mod2=${dep##*/} # same as `basename $dep`, but faster
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match2=$(grep "^$mod2" "$ListName")
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if [ -n "$match2" ]
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then
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#echo $mod2 >> notreq.list
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continue
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fi
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echo $mod.ko >> req.list
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done
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' DUMMYARG0 # xargs appends MODNAME, which becomes $dep in the script above
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sort -u req.list > req2.list
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sort -u "$ListName" > modules2.list
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join -v 1 modules2.list req2.list > modules3.list
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for mod in $(cat modules3.list)
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do
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# get the path for the module
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modpath=`grep /$mod modnames`
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[ -z "$modpath" ] && continue
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echo $modpath >> dep.list
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done
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sort -u dep.list > dep2.list
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# now move the modules into the extra/ directory
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for mod in `cat dep2.list`
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do
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newpath=`dirname $mod | sed -e "s/kernel\\//$Dest\//"`
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mkdir -p $newpath
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mv $mod $newpath
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done
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popd
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# If we're signing modules, we can't leave the .mod files for the .ko files
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# we've moved in .tmp_versions/. Remove them so the Kbuild 'modules_sign'
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# target doesn't try to sign a non-existent file. This is kinda ugly, but
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# so is modules-extra.
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for mod in `cat ${Dir}/dep2.list`
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do
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modfile=`basename $mod | sed -e 's/.ko/.mod/'`
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rm .tmp_versions/$modfile
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done
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pushd $Dir
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rm modnames dep.list dep2.list req.list req2.list
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rm "$ListName" modules2.list modules3.list
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popd
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