nixpkgs/pkgs/os-specific/linux/kernel/builder.sh

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source $stdenv/setup
buildPhase() {
cp $config .config
#mkdir $out
hashname=$(basename $out)
echo $hashname
if echo "$hashname" | grep -q '^[a-z0-9]\{32\}-'; then
hashname=$(echo "$hashname" | cut -c -32)
fi
extraname=$(grep ^EXTRAVERSION Makefile)
perl -p -i -e "s/^EXTRAVERSION.*/$extraname-$hashname/" Makefile
echo "export INSTALL_PATH=$out" >> Makefile
export INSTALL_MOD_PATH=$out
make
make modules_install
# move this to install later on
# largely copied from early FC3 kernel spec files
stripHash $out
version=$(echo $strippedName | cut -c 7-)-$hashname
# remove symlinks and create directories
rm $out/lib/modules/${version}/build
rm $out/lib/modules/${version}/source
mkdir $out/lib/modules/${version}/build
ln -s $out/lib/modules/${version}/build $out/lib/modules/${version}/source
# copy all Makefiles and Kconfig files
cp --parents `find -type f -name Makefile -o -name "Kconfig*"` $out/lib/modules/${version}/build
cp Module.symvers $out/lib/modules/$version/build
# weed out unneeded stuff
rm -rf $out/lib/modules/$version/build/Documentation
rm -rf $out/lib/modules/$version/build/scripts
rm -rf $out/lib/modules/$version/build/include
# copy config
cp $config $out/lib/modules/${version}/build/.config
# copy architecture dependent files
cp -a arch/$arch/scripts $out/lib/modules/${version}/build || :
cp -a arch/$arch/*lds $out/lib/modules/${version}/build || :
cp -a arch/$arch/Makefile.cpu $out/lib/modules/${version}/build/arch/$arch || :
cp -a --parents arch/$arch/kernel/asm-offsets.s $out/lib/modules/${version}/build/arch/$arch/kernel || :
# copy scripts
rm -rf scripts/*.o
rm -rf scripts/*/.o
cp -a scripts $out/lib/modules/${version}/build
# copy include files
mkdir -p $out/lib/modules/${version}/build/include
cd include
cp -a acpi config linux math-emu media net pcmcia rxrpc scsi sound video asm asm-generic $out/lib/modules/$version/build/include
cp -a `readlink asm` $out/lib/modules/$version/build/include
cd ..
# Make sure the Makefile and version.h have a matching timestamp so that
# external modules can be built
touch -r $out/lib/modules/$version/build/Makefile $out/lib/modules/$version/build/include/linux/version.h
touch -r $out/lib/modules/$version/build/.config $out/lib/modules/$version/build/include/linux/autoconf.h
}
buildPhase=buildPhase
genericBuild