path: root/gen_compile.sh

#!/bin/bash
# $Id$

compile_kernel_args() {
	local ARGS

	ARGS=''
	if [ "${KERNEL_CROSS_COMPILE}" != '' ]
	then
		ARGS="${ARGS} CROSS_COMPILE=\"${KERNEL_CROSS_COMPILE}\""
	else
		if [ "${KERNEL_CC}" != '' ]
		then
			ARGS="CC=\"${KERNEL_CC}\""
		fi
		if [ "${KERNEL_LD}" != '' ]
		then
			ARGS="${ARGS} LD=\"${KERNEL_LD}\""
		fi
		if [ "${KERNEL_AS}" != '' ]
		then
			ARGS="${ARGS} AS=\"${KERNEL_AS}\""
		fi
		if [ -n "${KERNEL_ARCH}" ]
		then
			ARGS="${ARGS} ARCH=\"${KERNEL_ARCH}\""
		fi
	fi
	echo -n "${ARGS}"
}

export_kernel_args()
{
	if [ "${KERNEL_CC}" != '' ]
	then
		export CC="${KERNEL_CC}"
	fi
	if [ "${KERNEL_LD}" != '' ]
	then
		export LD="${KERNEL_LD}"
	fi
	if [ "${KERNEL_AS}" != '' ]
	then
		export AS="${KERNEL_AS}"
	fi
	if [ "${KERNEL_CROSS_COMPILE}" != '' ]
	then
		export CROSS_COMPILE="${KERNEL_CROSS_COMPILE}"
	fi
}

unset_kernel_args()
{
	if [ "${KERNEL_CC}" != '' ]
	then
		unset CC
	fi
	if [ "${KERNEL_LD}" != '' ]
	then
		unset LD
	fi
	if [ "${KERNEL_AS}" != '' ]
	then
		unset AS
	fi
	if [ "${KERNEL_CROSS_COMPILE}" != '' ]
	then
		unset CROSS_COMPILE
	fi
}
save_args()
{
	if [ "${ARCH}" != '' ]
	then
		export ORIG_ARCH="${ARCH}"
	fi
	if [ "${CC}" != '' ]
	then
		export ORIG_CC="${CC}"
	fi
	if [ "${LD}" != '' ]
	then
		export ORIG_LD="${LD}"
	fi
	if [ "${AS}" != '' ]
	then
		export ORIG_AS="${AS}"
	fi
	if [ "${CROSS_COMPILE}" != '' ]
	then
		export ORIG_CROSS_COMPILE="${CROSS_COMPILE}"
	fi
}
reset_args()
{
	if [ "${ORIG_ARCH}" != '' ]
	then
		export ARCH="${ORIG_ARCH}"
		unset ORIG_ARCH
	fi
	if [ "${ORIG_CC}" != '' ]
	then
		export CC="${ORIG_CC}"
		unset ORIG_CC
	fi
	if [ "${ORIG_LD}" != '' ]
	then
		export LD="${ORIG_LD}"
		unset ORIG_LD
	fi
	if [ "${ORIG_AS}" != '' ]
	then
		export AS="${ORIG_AS}"
		unset ORIG_AS
	fi
	if [ "${ORIG_CROSS_COMPILE}" != '' ]
	then
		export CROSS_COMPILE="${ORIG_CROSS_COMPILE}"
		unset ORIG_CROSS_COMPILE
	fi
}

apply_patches() {
	util=$1
	version=$2

	if [ -d "${GK_SHARE}/patches/${util}/${version}" ]
	then
		print_info 1 "${util}: >> Applying patches..."
		for i in ${GK_SHARE}/patches/${util}/${version}/*{diff,patch}
		do
			[ -f "${i}" ] || continue
			patch_success=0
			for j in `seq 0 5`
			do
				patch -p${j} --backup-if-mismatch -f < "${i}" >/dev/null
				if [ $? = 0 ]
				then
					patch_success=1
					break
				fi
			done
			if [ ${patch_success} -eq 1 ]
			then
				print_info 1 "          - `basename ${i}`"
			else
				gen_die "could not apply patch ${i} for ${util}-${version}"
			fi
		done
	fi
}

compile_generic() {
	local RET
	[ "$#" -lt '2' ] &&
		gen_die 'compile_generic(): improper usage!'
	local target=${1}
	local argstype=${2}

	case "${argstype}" in
		kernel|kernelruntask)
			export_kernel_args
			MAKE=${KERNEL_MAKE}
			;;
		utils)
			export_utils_args
			MAKE=${UTILS_MAKE}
			;;
	esac

	case "${argstype}" in
		kernel|kernelruntask) ARGS="`compile_kernel_args`" ;;
		utils) ARGS="`compile_utils_args`" ;;
		*) ARGS="" ;;
	esac
	shift 2

	# the eval usage is needed in the next set of code
	# as ARGS can contain spaces and quotes, eg:
	# ARGS='CC="ccache gcc"'
	if [ "${argstype}" == 'kernelruntask' ]
	then
		# Silent operation, forced -j1
		print_info 2 "COMMAND: ${MAKE} ${MAKEOPTS} -j1 ${ARGS} ${target} $*" 1 0 1
		eval ${MAKE} -s ${MAKEOPTS} -j1 "${ARGS}" ${target} $*
		RET=$?
	elif [ "${LOGLEVEL}" -gt "1" ]
	then
		# Output to stdout and logfile
		print_info 2 "COMMAND: ${MAKE} ${MAKEOPTS} ${ARGS} ${target} $*" 1 0 1
		eval ${MAKE} ${MAKEOPTS} ${ARGS} ${target} $* 2>&1 | tee -a ${LOGFILE}
		RET=${PIPESTATUS[0]}
	else
		# Output to logfile only
		print_info 2 "COMMAND: ${MAKE} ${MAKEOPTS} ${ARGS} ${1} $*" 1 0 1
		eval ${MAKE} ${MAKEOPTS} ${ARGS} ${target} $* >> ${LOGFILE} 2>&1
		RET=$?
	fi
	[ ${RET} -ne 0 ] &&
		gen_die "Failed to compile the \"${target}\" target..."

	unset MAKE
	unset ARGS

	case "${argstype}" in
		kernel) unset_kernel_args ;;
		utils) unset_utils_args ;;
	esac
}

compile_modules() {
	print_info 1 "        >> Compiling ${KV} modules..."
	cd ${KERNEL_DIR}
	compile_generic modules kernel
	export UNAME_MACHINE="${ARCH}"
	[ "${INSTALL_MOD_PATH}" != '' ] && export INSTALL_MOD_PATH
	MAKEOPTS="${MAKEOPTS} -j1" compile_generic "modules_install" kernel
	unset UNAME_MACHINE
}

compile_kernel() {
	[ "${KERNEL_MAKE}" = '' ] &&
		gen_die "KERNEL_MAKE undefined - I don't know how to compile a kernel for this arch!"
	cd ${KERNEL_DIR}
	local kernel_make_directive="${KERNEL_MAKE_DIRECTIVE}"
	if [ "${KERNEL_MAKE_DIRECTIVE_OVERRIDE}" != "${DEFAULT_KERNEL_MAKE_DIRECTIVE_OVERRIDE}" ]; then
		kernel_make_directive="${KERNEL_MAKE_DIRECTIVE_OVERRIDE}"
	fi
	print_info 1 "        >> Compiling ${KV} ${kernel_make_directive/_install/ [ install ]/}..."
	compile_generic "${kernel_make_directive}" kernel
	if [ "${KERNEL_MAKE_DIRECTIVE_2}" != '' ]
	then
		print_info 1 "        >> Starting supplimental compile of ${KV}: ${KERNEL_MAKE_DIRECTIVE_2}..."
		compile_generic "${KERNEL_MAKE_DIRECTIVE_2}" kernel
	fi

	local firmware_in_kernel_line=`fgrep CONFIG_FIRMWARE_IN_KERNEL "${KERNEL_DIR}"/.config`
	if [ -n "${firmware_in_kernel_line}" -a "${firmware_in_kernel_line}" != CONFIG_FIRMWARE_IN_KERNEL=y ]
	then
		print_info 1 "        >> Installing firmware ('make firmware_install') due to CONFIG_FIRMWARE_IN_KERNEL != y..."
		MAKEOPTS="${MAKEOPTS} -j1" compile_generic "firmware_install" kernel
	else
		print_info 1 "        >> Not installing firmware as it's included in the kernel already (CONFIG_FIRMWARE_IN_KERNEL=y)..."
	fi

	local tmp_kernel_binary=$(find_kernel_binary ${KERNEL_BINARY_OVERRIDE:-${KERNEL_BINARY}})
	local tmp_kernel_binary2=$(find_kernel_binary ${KERNEL_BINARY_2})
	if [ -z "${tmp_kernel_binary}" ]
	then
		gen_die "Cannot locate kernel binary"
	fi

	if ! isTrue "${CMD_NOINSTALL}"
	then
		copy_image_with_preserve "kernel" \
			"${tmp_kernel_binary}" \
			"kernel-${KNAME}-${ARCH}-${KV}"

		copy_image_with_preserve "System.map" \
			"System.map" \
			"System.map-${KNAME}-${ARCH}-${KV}"

		if isTrue "${GENZIMAGE}"
		then
			copy_image_with_preserve "kernelz" \
				"${tmp_kernel_binary2}" \
				"kernelz-${KV}"
		fi
	else
		cp "${tmp_kernel_binary}" "${TMPDIR}/kernel-${KNAME}-${ARCH}-${KV}" ||
			gen_die "Could not copy the kernel binary to ${TMPDIR}!"
		cp "System.map" "${TMPDIR}/System.map-${KNAME}-${ARCH}-${KV}" ||
			gen_die "Could not copy System.map to ${TMPDIR}!"
		if isTrue "${GENZIMAGE}"
		then
			cp "${tmp_kernel_binary2}" "${TMPDIR}/kernelz-${KV}" ||
				gen_die "Could not copy the kernelz binary to ${TMPDIR}!"
		fi
	fi
}