mirror of
https://github.com/flatcar/scripts.git
synced 2026-02-26 18:11:45 +01:00
fix(cros-kernel2.eclass): Remove a massive amount of dead code.
We do not currently support or care about things like arm, device trees, smatch, and other things that massively complicate this eclass. Remove them so making further changes is simple. Features can always be added back later.
This commit is contained in:
Michael Marineau
parent
76e8f257ab
commit
c1039fbcfa
@ -3,7 +3,7 @@
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[[ ${EAPI} != "4" ]] && die "Only EAPI=4 is supported"
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inherit binutils-funcs cros-board toolchain-funcs
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inherit cros-workon toolchain-funcs
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HOMEPAGE="http://www.chromium.org/"
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LICENSE="GPL-2"
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@ -12,7 +12,7 @@ SLOT="0"
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DEPEND="sys-apps/debianutils
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"
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IUSE="-device_tree -kernel_sources"
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IUSE="-kernel_sources"
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STRIP_MASK="/usr/lib/debug/boot/vmlinux"
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# Build out-of-tree and incremental by default, but allow an ebuild inheriting
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@ -91,124 +91,6 @@ install_kernel_sources() {
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"${D}/${dest_build_dir}/Makefile" || die
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}
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get_build_cfg() {
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echo "$(cros-workon_get_build_dir)/.config"
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}
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get_boot_kernel() {
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if [[ "${PN}" =~ boot ]] ; then
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echo "true"
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else
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echo "false"
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fi
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}
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get_build_arch() {
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if [ "${ARCH}" = "arm" ] ; then
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case "${CHROMEOS_KERNEL_SPLITCONFIG}" in
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*tegra*)
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echo "tegra"
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;;
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*exynos*)
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echo "exynos5"
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;;
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*)
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echo "arm"
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;;
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esac
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else
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echo $(tc-arch-kernel)
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fi
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}
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# @FUNCTION: cros_chkconfig_present
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# @USAGE: <option to check config for>
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# @DESCRIPTION:
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# Returns success of the provided option is present in the build config.
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cros_chkconfig_present() {
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local config=$1
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grep -q "^CONFIG_$1=[ym]$" "$(get_build_cfg)"
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}
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cros-kernel2_pkg_setup() {
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# This is needed for running src_test(). The kernel code will need to
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# be rebuilt with `make check`. If incremental build were enabled,
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# `make check` would have nothing left to build.
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use test && export CROS_WORKON_INCREMENTAL_BUILD=0
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cros-workon_pkg_setup
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}
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# @FUNCTION: emit_its_script
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# @USAGE: <output file> <boot_dir> <dtb_dir> <device trees>
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# @DESCRIPTION:
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# Emits the its script used to build the u-boot fitImage kernel binary
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# that contains the kernel as well as device trees used when booting
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# it.
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emit_its_script() {
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local iter=1
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local its_out=${1}
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shift
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local boot_dir=${1}
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shift
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local dtb_dir=${1}
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shift
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cat > "${its_out}" <<-EOF || die
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/dts-v1/;
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/ {
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description = "Chrome OS kernel image with one or more FDT blobs";
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#address-cells = <1>;
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images {
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kernel@1 {
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data = /incbin/("${boot_dir}/zImage");
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type = "$(get_kernel_type)";
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arch = "arm";
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os = "linux";
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compression = "none";
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load = <$(get_load_addr)>;
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entry = <$(get_load_addr)>;
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};
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EOF
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local dtb
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for dtb in "$@" ; do
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cat >> "${its_out}" <<-EOF || die
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fdt@${iter} {
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description = "$(basename ${dtb})";
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data = /incbin/("${dtb_dir}/${dtb}");
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type = "flat_dt";
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arch = "arm";
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compression = "none";
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hash@1 {
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algo = "sha1";
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};
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};
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EOF
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((++iter))
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done
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cat <<-EOF >>"${its_script}"
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};
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configurations {
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default = "conf@1";
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EOF
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local i
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for i in $(seq 1 $((iter-1))) ; do
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cat >> "${its_out}" <<-EOF || die
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conf@${i} {
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kernel = "kernel@1";
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fdt = "fdt@${i}";
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};
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EOF
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done
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echo " };" >> "${its_out}"
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echo "};" >> "${its_out}"
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}
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kmake() {
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local kernel_arch=$(tc-arch-kernel)
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@ -216,16 +98,6 @@ kmake() {
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# Hack for using 64-bit kernel with 32-bit user-space
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if [[ "${ABI:-${ARCH}}" != "amd64" && "${kernel_arch}" == "x86_64" ]]; then
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cross=x86_64-cros-linux-gnu-
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else
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# TODO(raymes): Force GNU ld over gold. There are still some
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# gold issues to iron out. See: 13209.
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tc-export LD CC CXX
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set -- \
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LD="$(get_binutils_path_ld)/ld" \
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CC="${CC} -B$(get_binutils_path_ld)" \
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CXX="${CXX} -B$(get_binutils_path_ld)" \
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"$@"
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fi
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cw_emake \
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@ -236,201 +108,38 @@ kmake() {
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"$@"
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}
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cros-kernel2_src_prepare() {
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cros-workon_src_prepare
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}
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cros-kernel2_src_unpack() {
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cros-workon_src_unpack
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cros-kernel2_src_configure() {
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local config="$(find_defconfig)"
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elog "Using kernel config: ${config}"
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cp -f "${config}" "$(get_build_cfg)" || die
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cp -f "${config}" "$(cros-workon_get_build_dir)/.config" || die
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# copy the cpio initrd to the output build directory so we can tack it
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# onto the kernel image itself.
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cp "${ROOT}"/usr/share/bootengine/bootengine.cpio "$(cros-workon_get_build_dir)" || die "copy of dracut cpio failed."
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cp "${ROOT}"/usr/share/bootengine/bootengine.cpio \
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"$(cros-workon_get_build_dir)" || die "copy of dracut cpio failed."
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}
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cros-kernel2_src_configure() {
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# Use default for any options not explitly set in defconfig
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yes "" | kmake oldconfig
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}
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# @FUNCTION: get_dtb_name
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# @USAGE: <dtb_dir>
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# @DESCRIPTION:
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# Get the name(s) of the device tree binary file(s) to include.
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get_dtb_name() {
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local dtb_dir=${1}
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local board_with_variant=$(get_current_board_with_variant)
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# Do a simple mapping for device trees whose names don't match
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# the board_with_variant format; default to just the
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# board_with_variant format.
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case "${board_with_variant}" in
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(tegra2_dev-board)
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echo tegra-harmony.dtb
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;;
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(tegra2_seaboard)
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echo tegra-seaboard.dtb
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;;
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tegra*)
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echo ${board_with_variant}.dtb
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;;
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*)
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local f
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for f in ${dtb_dir}/*.dtb ; do
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basename ${f}
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done
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;;
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esac
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}
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# All current tegra boards ship with an u-boot that won't allow
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# use of kernel_noload. Because of this, keep using the traditional
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# kernel type for those. This means kernel_type kernel and regular
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# load and entry point addresses.
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get_kernel_type() {
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case "$(get_current_board_with_variant)" in
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tegra*)
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echo kernel
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;;
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*)
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echo kernel_noload
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;;
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esac
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}
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get_load_addr() {
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case "$(get_current_board_with_variant)" in
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tegra*)
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echo 0x03000000
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;;
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*)
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echo 0
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;;
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esac
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}
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cros-kernel2_src_compile() {
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local build_targets=() # use make default target
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if use arm; then
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build_targets=(
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"uImage"
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$(cros_chkconfig_present MODULES && echo "modules")
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)
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fi
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local src_dir="$(cros-workon_get_build_dir)/source"
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SMATCH_ERROR_FILE="${src_dir}/chromeos/check/smatch_errors.log"
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if use test && [[ -e "${SMATCH_ERROR_FILE}" ]]; then
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local make_check_cmd="smatch -p=kernel"
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local test_options=(
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CHECK="${make_check_cmd}"
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C=1
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)
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SMATCH_LOG_FILE="$(cros-workon_get_build_dir)/make.log"
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# The path names in the log file are build-dependent. Strip out
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# the part of the path before "kernel/files" and retains what
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# comes after it: the file, line number, and error message.
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kmake -k ${build_targets[@]} "${test_options[@]}" |& \
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tee "${SMATCH_LOG_FILE}"
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else
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kmake -k ${build_targets[@]}
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fi
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if use device_tree; then
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kmake -k dtbs
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fi
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}
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cros-kernel2_src_test() {
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[[ -e ${SMATCH_ERROR_FILE} ]] || \
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die "smatch whitelist file ${SMATCH_ERROR_FILE} not found!"
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[[ -e ${SMATCH_LOG_FILE} ]] || \
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die "Log file from src_compile() ${SMATCH_LOG_FILE} not found!"
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grep -w error: "${SMATCH_LOG_FILE}" | grep -o "kernel/files/.*" \
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| sed s:"kernel/files/"::g > "${SMATCH_LOG_FILE}.errors"
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local num_errors=$(wc -l < "${SMATCH_LOG_FILE}.errors")
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local num_warnings=$(egrep -wc "warn:|warning:" "${SMATCH_LOG_FILE}")
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einfo "smatch found ${num_errors} errors and ${num_warnings} warnings."
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# Create a version of the error database that doesn't have line numbers,
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# since line numbers will shift as code is added or removed.
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local build_dir="$(cros-workon_get_build_dir)"
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local no_line_numbers_file="${build_dir}/no_line_numbers.log"
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sed -r "s/(:[0-9]+){1,2}//" "${SMATCH_ERROR_FILE}" > \
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"${no_line_numbers_file}"
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# For every smatch error that came up during the build, check if it is
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# in the error database file.
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local num_unknown_errors=0
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local line=""
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while read line; do
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local no_line_num=$(echo "${line}" | \
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sed -r "s/(:[0-9]+){1,2}//")
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if ! fgrep -q "${no_line_num}" "${no_line_numbers_file}"; then
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eerror "Non-whitelisted error found: \"${line}\""
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: $(( ++num_unknown_errors ))
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fi
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done < "${SMATCH_LOG_FILE}.errors"
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[[ ${num_unknown_errors} -eq 0 ]] || \
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die "smatch found ${num_unknown_errors} unknown errors."
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kmake
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}
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cros-kernel2_src_install() {
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dodir /boot
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kmake INSTALL_PATH="${D}/boot" install
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if cros_chkconfig_present MODULES; then
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kmake INSTALL_MOD_PATH="${D}" modules_install
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fi
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kmake INSTALL_MOD_PATH="${D}" modules_install
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local version=$(kernelversion)
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if use arm; then
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local boot_dir="$(cros-workon_get_build_dir)/arch/${ARCH}/boot"
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local kernel_bin="${D}/boot/vmlinuz-${version}"
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local zimage_bin="${D}/boot/zImage-${version}"
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local dtb_dir="${boot_dir}"
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# Newer kernels (after linux-next 12/3/12) put dtbs in the dts
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# dir. Use that if we we find no dtbs directly in boot_dir.
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# Note that we try boot_dir first since the newer kernel will
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# actually rm ${boot_dir}/*.dtb so we'll have no stale files.
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if ! ls "${dtb_dir}"/*.dtb &> /dev/null; then
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dtb_dir="${boot_dir}/dts"
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fi
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if use device_tree; then
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local its_script="$(cros-workon_get_build_dir)/its_script"
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emit_its_script "${its_script}" "${boot_dir}" \
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"${dtb_dir}" $(get_dtb_name "${dtb_dir}")
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mkimage -f "${its_script}" "${kernel_bin}" || die
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else
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cp -a "${boot_dir}/uImage" "${kernel_bin}" || die
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fi
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cp -a "${boot_dir}/zImage" "${zimage_bin}" || die
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# TODO(vbendeb): remove the below .uimg link creation code
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# after the build scripts have been modified to use the base
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# image name.
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cd $(dirname "${kernel_bin}")
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ln -sf $(basename "${kernel_bin}") vmlinux.uimg || die
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ln -sf $(basename "${zimage_bin}") zImage || die
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fi
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if [ ! -e "${D}/boot/vmlinuz" ]; then
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ln -sf "vmlinuz-${version}" "${D}/boot/vmlinuz" || die
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fi
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# Check the size of kernel image and issue warning when image size is near
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# the limit. For factory install initramfs, we don't care about kernel
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# size limit as the image is downloaded over network.
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local kernel_image_size=$(stat -c '%s' -L "${D}"/boot/vmlinuz)
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einfo "Kernel image size is ${kernel_image_size} bytes."
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# Install uncompressed kernel for debugging purposes.
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insinto /usr/lib/debug/boot/${version}/
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doins "$(cros-workon_get_build_dir)/vmlinux"
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@ -440,4 +149,4 @@ cros-kernel2_src_install() {
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fi
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}
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EXPORT_FUNCTIONS pkg_setup src_prepare src_configure src_compile src_test src_install
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EXPORT_FUNCTIONS src_unpack src_configure src_compile src_install
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@ -19,8 +19,8 @@ DESCRIPTION="CoreOS kernel"
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HOMEPAGE="http://www.kernel.org"
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SRC_URI="${KERNEL_URI}"
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KEYWORDS="amd64 arm x86"
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IUSE="deblob"
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KEYWORDS="amd64 x86"
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IUSE=""
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src_prepare() {
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epatch "${FILESDIR}"/no_firmware.patch
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