a94dd5c8b1
`modules-closure.nix' produces a module tree in $out/lib/modules/VERSION that contains only the modules identified by `rootModules', plus their dependencies. It also generates an appropriate modules.dep. This is useful for initrds, as we obviously don't want a copy of the entire kernel module tree in the initial RAM disk. svn path=/nixu/trunk/; revision=6939
37 lines
909 B
Bash
37 lines
909 B
Bash
source $stdenv/setup
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set -o pipefail
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PATH=$module_init_tools/sbin:$PATH
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version=$(cd $kernel/lib/modules && ls -d *)
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echo "kernel version is $version"
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export MODULE_DIR=$kernel/lib/modules/
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# Determine the dependencies of each root module.
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closure=
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for module in $rootModules; do
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echo "root module: $module"
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deps=$(modprobe --set-version "$version" --show-depends "$module" \
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| sed 's/^insmod //')
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for i in $deps; do echo $i; done
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closure="$closure $deps"
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done
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# Remove duplicates.
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closure=$(for i in $closure; do echo $i; done | sort | uniq)
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echo "closure:"
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ensureDir $out
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for module in $closure; do
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echo $module
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target=$(echo $module | sed "s^$kernel^$out^")
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mkdir -p $(dirname $target)
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cp $module $target
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grep "^$module" $kernel/lib/modules/$version/modules.dep \
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| sed "s^$kernel^$out^g" \
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>> $out/lib/modules/$version/modules.dep
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done
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