kernel: Make sure the prerequirements are always there.

[people/ms/ipfire-3.x.git] / kernel / kernel.nm

###############################################################################
# IPFire.org    - An Open Source Firewall Solution                            #
# Copyright (C) - IPFire Development Team <info@ipfire.org>                   #
###############################################################################

name       = kernel
version    = 3.0.4
release    = 10
thisapp    = linux-%{version}

maintainer = Michael Tremer <michael.tremer@ipfire.org>
groups     = System/Kernels
url        = http://www.kernel.org/
license    = GPLv2
summary    = The Linux kernel.

description
	The kernel package contains the Linux kernel (vmlinuz), the core of any \
	Linux operating system. The kernel handles the basic functions \
	of the operating system: memory allocation, process allocation, device \
	input and output, etc.
end

# Version helper variables.
localversion = %{release}.%{DISTRO_DISTTAG}.%{DISTRO_ARCH}
fullver      = %{version}-%{localversion}

sources      = %{thisapp}.tar.gz

build
	# icecream cannot be used to compile the kernel.
	# Because the PaX patch does use GCC plugins to harden the kernel which
	# are not available on the remote compilers, we need to disable it here.
	export ICECC=no

	requires
		binutils-devel
		elfutils-devel
		module-init-tools
		ncurses-devel
		net-tools
		newt-devel
		perl
		python-devel
		slang-devel
		xz-lzma-compat
	end

	# A list of kernels to build.
	kernels = default

	if "%{DISTRO_ARCH}" == "i686"
		# Build a PAE-enabled kernel for the i686 architecture.
		kernels += PAE

		kernel_arch  = x86
		kernel_image = arch/%{kernel_arch}/boot/bzImage
		kernel_target = bzImage
	end

	prepare_cmds
		rm -f %{DIR_APP}/localversion-grsec

		sed -e "s/^HOSTCFLAGS.*=.*/& -fPIC/g" -i Makefile

		cp -vf %{DIR_SOURCE}/%{DISTRO_SNAME}_logo.ppm \
			drivers/video/logo/logo_linux_clut224.ppm

		# Get rid of unwanted files resulting from patch fuzz.
		find . \( -name "*.orig" -o -name "*~" \) -exec rm -f {} \; >/dev/null

		# Remove unnecessary SCM files.
		find . -name .gitignore -exec rm -f {} \; >/dev/null

		# This prevents scripts/setlocalversion from mucking with our version numbers.
		touch .scmversion

		mkdir -pv configs
		configure_kernel() {
			local flavour=${1}
			local suffix
			if [ "${flavour}" != "default" ]; then
				suffix="-${flavour}"
			fi

			# This is the place, where the configuration files
			# should be dynamically generated.
			# For now, we just copy pregenerated ones.
			cp %{DIR_SOURCE}/config.%{arch}${suffix} .config

			make ARCH=%{kernel_arch} oldnoconfig
			mv .config configs/config.${flavour}
		}

		# Generate configuration files for all kernels we are going to
		# build.
		for kernel in %{kernels}; do
			configure_kernel ${kernel}
		done
	end

	build
		build_kernel() {
			local flavour=${1}
			local suffix
			local localversion="%{localversion}"
			local fullversion="%{fullver}"
			if [ "${flavour}" != "default" ]; then
				suffix="-${flavour}"
				localversion="${localversion}.${flavour}"
				fullversion="${fullversion}.${flavour}"
			fi

			# Label the build.
			sed -i Makefile \
				-e "s/^EXTRAVERSION.*/EXTRAVERSION = -${localversion}/"

			# Clean up the source tree.
			make mrproper

			# Install configuration file.
			cp configs/config.${flavour} .config

			# Run the build.
			make ARCH=%{kernel_arch} oldnoconfig >/dev/null
			make ARCH=%{kernel_arch} CC="gcc -fno-PIE" %{kernel_target} modules %{PARALLELISMFLAGS}

			# Install the results.
			mkdir -pv %{BUILDROOT}/boot %{BUILDROOT}/lib/modules/${fullversion}
			install -m 755 %{kernel_image} %{BUILDROOT}/boot/vmlinuz-${fullversion}
			install -m 644 .config %{BUILDROOT}/boot/config-${fullversion}
			install -m 644 System.map %{BUILDROOT}/boot/System.map-${fullversion}

			# Create empty initramfs (20M).
			dd if=/dev/zero of=%{BUILDROOT}/boot/initramfs-${fullversion}.img bs=1M count=20

			# Install modules.
			make ARCH=%{kernel_arch} INSTALL_MOD_PATH=%{BUILDROOT} mod-fw= \
				KERNELRELEASE=${fullversion} modules_install
			#make ARCH=%{kernel_arch} INSTALL_MOD_PATH=%{BUILDROOT} \
			#	KERNELRELEASE=${fullversion} vdso_install

			# Create an empty settings file for dracut
			mkdir -pv %{BUILDROOT}/etc/ld.so.conf.d
			echo "# Placeholder file, no vDSO hwcap entries used in this kernel." \
				> %{BUILDROOT}/etc/ld.so.conf.d/kernel-${fullversion}.conf

			# And now the scary looking part.
			#
			# Recreate source and build links.
			rm -vf %{BUILDROOT}/lib/modules/${fullversion}/{build,source}
			mkdir -pv %{BUILDROOT}/lib/modules/${fullversion}/build
			ln -svf build %{BUILDROOT}/lib/modules/${fullversion}/source

			# Create dirs for extra modules.
			mkdir -pv %{BUILDROOT}/lib/modules/${fullversion}/extra

			cp -v --parents $(find -type f -name "Makefile*" -o -name "Kconfig*") \
				%{BUILDROOT}/lib/modules/${fullversion}/build
			cp -v Module.symvers System.map \
				%{BUILDROOT}/lib/modules/${fullversion}/build
			rm -vrf %{BUILDROOT}/lib/modules/${fullversion}/build/{Documentation,scripts,include}

			cp -v .config %{BUILDROOT}/lib/modules/${fullversion}/build
			cp -va scripts %{BUILDROOT}/lib/modules/${fullversion}/build
			find %{BUILDROOT}/lib/modules/${fullversion}/build/scripts -name "*.o" \
				-exec rm -vf {} \;

			cp -va --parents arch/%{kernel_arch}/include \
				%{BUILDROOT}/lib/modules/${fullversion}/build
			cp -va include %{BUILDROOT}/lib/modules/${fullversion}/build/include

			# Make sure we can build external modules.
			touch -r %{BUILDROOT}/lib/modules/${fullversion}/build/Makefile \
				%{BUILDROOT}/lib/modules/${fullversion}/build/include/linux/version.h
			touch -r %{BUILDROOT}/lib/modules/${fullversion}/build/.config \
				%{BUILDROOT}/lib/modules/${fullversion}/build/autoconf.h
			cp -v %{BUILDROOT}/lib/modules/${fullversion}/build/.config \
				%{BUILDROOT}/lib/modules/${fullversion}/build/include/config/auto.conf

			find %{BUILDROOT}/lib/modules/${fullversion} -name "*.ko" -type f | \
				xargs chmod u+x

			# Move all development files to /usr/src.
			mkdir -pv %{BUILDROOT}/usr/src/kernels
			mv -v %{BUILDROOT}/lib/modules/${fullversion}/build \
				%{BUILDROOT}/usr/src/kernels/${fullversion}
			ln -svf ../../../usr/src/kernels/${fullversion} \
				%{BUILDROOT}/lib/modules/${fullversion}/build

			find %{BUILDROOT}/usr/src/kernels -name ".*.cmd" -exec rm -f {} \;
		}

		for kernel in %{kernels}; do
			build_kernel ${kernel}
		done
	end

	install
		# Install the header files
		make ARCH=x86 INSTALL_HDR_PATH=dest headers_install
		mkdir -pv %{BUILDROOT}/usr/include
		find dest/include \( -name .install -o -name ..install.cmd \) -delete
		cp -rv dest/include/* %{BUILDROOT}/usr/include

		# Glibc provides these headers
		rm -rfv %{BUILDROOT}/usr/include/scsi \
			%{BUILDROOT}/usr/include/asm*/atomic.h \
			%{BUILDROOT}/usr/include/asm*/io.h \
			%{BUILDROOT}/usr/include/asm*/irq.h

		# Remove all firmware files which are distributed by linux-firmware
		rm -rfv %{BUILDROOT}/lib/firmware

		# Install tools.
		# XXX Man pages cannot be created because they need asciidoc.
		make -C tools/perf DESTDIR=%{BUILDROOT} \
			HAVE_CPLUS_DEMANGLE=1 prefix=/usr perfexecdir=lib/perf-core \
			install #install-man
	end
end

packages
	template KERNEL
		kernel_name = kernel
		kernel_release = %{fullver}

		summary = The Linux kernel %{kernel_release}.

		prerequires = dracut grubby module-init-tools
		provides = kernel
		requires
			%{prerequires}
			linux-firmware
		end

		files
			/boot/System.map-%{kernel_release}
			/boot/vmlinuz-%{kernel_release}
			/boot/initramfs-%{kernel_release}.img
			/etc/ld.so.conf.d/kernel-%{kernel_release}.conf
			/lib/modules/%{kernel_release}
		end

		_posttrans
			/sbin/new-kernel-pkg --package %{kernel_name} --mkinitrd --dracut --depmod --update %{kernel_release} || exit $?
			/sbin/new-kernel-pkg --package %{kernel_name} --rpmposttrans %{kernel_release} || exit $?
		end

		script posttransin
			%{_posttrans}
		end

		script posttransup
			%{_posttrans}
		end

		script postin
			/sbin/new-kernel-pkg --package kernel%{?-v:-%{-v*}} --install %{KVERREL}%{?-v:.%{-v*}}
		end

		script postup
			/sbin/new-kernel-pkg --package %{kernel_name} --install %{kernel_release}
		end

		script preun
			/sbin/new-kernel-pkg --rminitrd --rmmoddep --remove %{kernel_release}
		end
	end

	template KERNELDEVEL
		kernel_release = %{fullver}

		summary = Development files of kernel-%{kernel_release}.
		description
			%{summary}

			Install this package in order to compile modules for
			kernel release %{kernel_release}.
		end

		filter_requires
			perl>=[0-9]\:.*
		end

		files
			/lib/modules/%{kernel_release}/build
			/lib/modules/%{kernel_release}/source
			/usr/src/kernels/%{kernel_release}
		end
	end

	package kernel
		template KERNEL

		kernel_name = kernel
		kernel_release = %{fullver}
	end

	package kernel-devel
		template KERNELDEVEL

		kernel_name = kernel
		kernel_release = %{fullver}
	end

	package kernel-PAE
		template KERNEL

		kernel_name = kernel-PAE
		kernel_release = %{fullver}.PAE
	end

	package kernel-PAE-devel
		template KERNELDEVEL

		kernel_name = kernel-PAE
		kernel_release = %{fullver}.PAE
	end

	package kernel-headers
		summary = Header files of the kernel release %{fullver}.
		desciption = %{summary}

		files
			/usr/include
		end
	end

	package kernel-tools
		summary = Assortment of tools for the Linux kernel.
		description = %{summary}

		filter_requires
			perl>=[0-9]\:.*
		end

		files
			/
			!/boot
			!/lib/modules
			!/usr/include
			!/usr/src
		end
	end
end