Daniel Barlow
7e2b0068e6
There is nothing in this commit except for the changes made by nix-shell -p nixfmt-rfc-style --run "nixfmt ." If this has mucked up your open branches then sorry about that. You can probably nixfmt them to match before merging
50 lines
1.3 KiB
Nix
50 lines
1.3 KiB
Nix
{
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liminix,
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lib,
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targets ? [ ],
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kernel ? null,
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runCommand,
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pkgsBuildBuild,
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dependencies ? [ ],
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}:
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let
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inherit (liminix.services) oneshot;
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inherit (lib) concatStringsSep;
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loader =
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runCommand "modules"
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{
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nativeBuildInputs = with pkgsBuildBuild; [
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kmod
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cpio
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gawk
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];
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}
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''
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kernel=${kernel.modulesupport}
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mkdir -p lib/modules/0.0
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(cd $kernel && find . -name \*.ko | cpio --verbose --make-directories -p $NIX_BUILD_TOP/lib/modules/0.0)
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cp $kernel/modules.* lib/modules/0.0
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depmod -b . 0.0
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(for i in ${lib.concatStringsSep " " targets}; do
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modprobe -S 0.0 -d $NIX_BUILD_TOP --show-depends $i | sed "s,^insmod $NIX_BUILD_TOP/lib/modules/0.0/,,g"
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done) | awk '!a[$0]++' > load-order
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mkdir $out
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for i in $(cat load-order); do
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install -v $NIX_BUILD_TOP/lib/modules/0.0/$i -D $out/$i
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done
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echo "O=$out" > $out/load.sh
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sed "s,^,insmod \$O/,g" < load-order >> $out/load.sh
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echo "O=$out" > $out/unload.sh
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tac load-order | sed "s,^,rmmod \$O/,g" > $out/unload.sh
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'';
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in
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oneshot {
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name = "kmodloader-" + (concatStringsSep "-" targets);
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up = "sh ${loader}/load.sh";
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down = "sh ${loader}/unload.sh";
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inherit dependencies;
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}
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