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# Description:  Linux libre kernel that comes without blobs
# URL:          http://linux-libre.fsfla.org
# Maintainer:   Silvino, silvino at bk dot ru
# Depends on:   grub2 dracut

name=linux-blob
version=4.9.12
release=2
source=(https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-$version.tar.xz \
    https://raw.githubusercontent.com/graysky2/kernel_gcc_patch/master/enable_additional_cpu_optimizations_for_gcc_v4.9%2B_kernel_v3.15%2B.patch \
    http://grsecurity.net/test/grsecurity-3.1-4.9.12-201702231830.patch \
    port-blob-grsecurity.patch \
    port-blob-make.patch \
    port-blob-cpu.patch \
    config-c9)

build() {

    mkdir -p $PKG/usr/src

    # /usr/src/version-cpu_optimizations.patch
    install -m 0644  $SRC/enable_additional_cpu_optimizations_for_gcc_v4.9%2B_kernel_v3.15%2B.patch $PKG/usr/src/${version}-cpu_optimizations.patch

    # /usr/src/grsecurity-version.patch
    install -m 0644  $SRC/grsecurity-3.1-4.9.12-201702231830.patch $PKG/usr/src/

    patch < port-blob-grsecurity.patch
    patch < port-blob-cpu.patch

    # fix to build under tpe
    chmod -R go-w linux-$version

    cd linux-$version

    patch < ${SRC}/port-blob-make.patch

    make distclean

    patch -p1 < $SRC/grsecurity-3.1-4.9.12-201702231830.patch
    patch -p1 < $SRC/enable_additional_cpu_optimizations_for_gcc_v4.9%2B_kernel_v3.15%2B.patch

    cp $SRC/config-c9 .config

    make silentoldconfig
    # make nconfig
    # make localmodconfig

    make prepare

    install -m 0644  .config $PKG/usr/src/${version}-blob-config

    make LOCALVERSION= bzImage modules
    make INSTALL_MOD_PATH=$PKG modules_install

    install -m 0644 -D arch/x86_64/boot/bzImage $PKG/boot/vmlinuz-$version-blob
    install -m 0644  System.map $PKG/boot/System.map-$version-blob
    install -m 0644 .config $PKG/boot/config-$version-blob

    rm ${PKG}/lib/modules/${version}-blob/source
    rm ${PKG}/lib/modules/${version}-blob/build

    ln -s /usr/src/linux-${version} $PKG/lib/modules/${version}-blob/source
    ln -s /usr/src/linux-${version} $PKG/lib/modules/${version}-blob/build
}