# 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-libre
version=4.9.9
release=3
source=(http://linux-libre.fsfla.org/pub/linux-libre/releases/$version-gnu/$name-$version-gnu.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 \
    https://grsecurity.net/test/grsecurity-3.1-4.9.9-201702122044.patch \
    port-libre-grsecurity.patch \
    port-libre-cpu.patch \
    port-libre-make.patch \
    config-c9)

build() {

    mkdir -p $PKG/usr/src

    # /usr/src/version-libre-config
    install -m 0644  $SRC/config-c9 $PKG/usr/src/${version}-libre-config

    # /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-3.1-4.9.9-201702122044.patch $PKG/usr/src/
    install -m 0644  $SRC/port-libre-grsecurity.patch $PKG/usr/src/
    install -m 0644  $SRC/port-libre-cpu.patch $PKG/usr/src/
    install -m 0644  $SRC/port-libre-make.patch $PKG/usr/src/

    patch < port-libre-grsecurity.patch
    patch < port-libre-cpu.patch

    cd linux-$version

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

    make distclean

    patch -p1 < $SRC/grsecurity-3.1-4.9.9-201702122044.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 LOCALVERSION= bzImage modules
    make INSTALL_MOD_PATH=$PKG modules_install

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

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

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