qubes-linux-kernel/kernel.spec
2017-06-07 12:06:31 -06:00

500 lines
17 KiB
RPMSpec

# A spec file for building xenlinux Dom0 kernel for Qubes
# Based on the Open SUSE kernel-spec & Fedora kernel-spec.
#
%if 0%{?qubes_builder}
%define _sourcedir %(pwd)
%endif
#%define _unpackaged_files_terminate_build 0
%define variant pvops.qubes
%define plainrel %(cat rel)
%define rel %{plainrel}.%{variant}
%define version %(cat version)
%define _buildshell /bin/bash
%define build_xen 1
%global cpu_arch x86_64
%define cpu_arch_flavor %cpu_arch
%define kernelrelease %(echo %{version} | sed 's/^3\\.[0-9]\\+$/\\0.0/')-%rel.%cpu_arch
%define my_builddir %_builddir/%{name}-%{version}
%define build_src_dir %my_builddir/linux-%version
%define src_install_dir /usr/src/kernels/%kernelrelease
%define kernel_build_dir %my_builddir/linux-obj
%define vm_install_dir /var/lib/qubes/vm-kernels/%version-%{plainrel}
%(chmod +x %_sourcedir/{guards,apply-patches,check-for-config-changes})
%define install_vdso 1
%define debuginfodir /usr/lib/debug
# If you want to build debuginfo package, enable also CONFIG_DEBUG_INFO in %%setup section
# Otherwise debuginfo build is disabled by default to save disk space (it needs 2-3GB build time)
%global debug_package %{nil}
Name: kernel
Summary: The Xen Kernel
Version: %{version}
Epoch: 1000
Release: %{rel}
License: GPL v2 only
Group: System/Kernel
Url: http://www.kernel.org/
AutoReqProv: on
BuildRequires: coreutils module-init-tools sparse
BuildRequires: qubes-kernel-vm-support
BuildRequires: dracut
BuildRequires: busybox
BuildRequires: bc
BuildRequires: openssl-devel
BuildRequires: gcc-plugin-devel
BuildRequires: elfutils-libelf-devel
Provides: multiversion(kernel)
Provides: %name = %kernelrelease
Provides: kernel-xen-dom0
Provides: kernel-qubes-dom0
Provides: kernel-qubes-dom0-pvops
Provides: kernel-drm = 4.3.0
Provides: kernel-drm-nouveau = 16
Provides: kernel-modules-extra = %kernelrelease
Provides: kernel-modeset = 1
Requires(pre): coreutils gawk
Requires(post): dracut binutils
Requires: qubes-core-dom0-linux-kernel-install
Conflicts: sysfsutils < 2.0
# root-lvm only works with newer udevs
Conflicts: udev < 118
Conflicts: lvm2 < 2.02.33
Provides: kernel = %kernelrelease
Provides: kernel-uname-r = %kernelrelease
Source0: linux-%version.tar.xz
Source14: series.conf
Source16: guards
Source17: apply-patches
Source33: check-for-config-changes
Source100: config
# FIXME: Including dirs this way does NOT produce proper src.rpms
Source204: patches.rpmify
Source205: patches.xen
Source300: patches.qubes
BuildRoot: %{_tmppath}/%{name}-%{version}-build
ExclusiveArch: x86_64
%description
Qubes Dom0 kernel.
%prep
if ! [ -e %_sourcedir/linux-%version.tar.xz ]; then
echo "The %name-%version.nosrc.rpm package does not contain the" \
"complete sources. Please install kernel-source-%version.src.rpm."
exit 1
fi
SYMBOLS="xen-dom0 pvops"
# Unpack all sources and patches
%setup -q -c -T -a 0
mkdir -p %kernel_build_dir
cd linux-%version
if [ -r %_sourcedir/series-%{version}.conf ]; then
%_sourcedir/apply-patches %_sourcedir/series-%{version}.conf %_sourcedir $SYMBOLS
else
%_sourcedir/apply-patches %_sourcedir/series.conf %_sourcedir $SYMBOLS
fi
cd %kernel_build_dir
if [ -f %_sourcedir/config-%{version} ]; then
cp %_sourcedir/config-%{version} .config
else
cp %_sourcedir/config .config
fi
%build_src_dir/scripts/config \
--set-str CONFIG_LOCALVERSION -%release.%cpu_arch \
--disable CONFIG_DEBUG_INFO
# --enable CONFIG_DEBUG_INFO \
# --disable CONFIG_DEBUG_INFO_REDUCED
# Enabling CONFIG_DEBUG_INFO produces *huge* packages!
MAKE_ARGS="$MAKE_ARGS -C %build_src_dir O=$PWD"
if test -e %_sourcedir/TOLERATE-UNKNOWN-NEW-CONFIG-OPTIONS; then
yes '' | make oldconfig $MAKE_ARGS
else
cp .config .config.orig
make silentoldconfig $MAKE_ARGS < /dev/null
%_sourcedir/check-for-config-changes .config.orig .config
rm .config.orig
fi
make prepare $MAKE_ARGS
make scripts $MAKE_ARGS
make scripts_basic $MAKE_ARGS
krel=$(make -s kernelrelease $MAKE_ARGS)
if [ "$krel" != "%kernelrelease" ]; then
echo "Kernel release mismatch: $krel != %kernelrelease" >&2
exit 1
fi
make clean $MAKE_ARGS
rm -f source
find . ! -type d -printf '%%P\n' > %my_builddir/obj-files
u2mfn_ver=`dkms status u2mfn|tail -n 1|cut -f 2 -d ' '|tr -d ':,:'`
rm -rf %_builddir/u2mfn
cp -r /usr/src/u2mfn-$u2mfn_ver %_builddir/u2mfn
%build
cd %kernel_build_dir
# This override tweaks the kernel makefiles so that we run debugedit on an
# object before embedding it. When we later run find-debuginfo.sh, it will
# run debugedit again. The edits it does change the build ID bits embedded
# in the stripped object, but repeating debugedit is a no-op. We do it
# beforehand to get the proper final build ID bits into the embedded image.
# This affects the vDSO images in vmlinux, and the vmlinux image in bzImage.
export AFTER_LINK=\
'sh -xc "/usr/lib/rpm/debugedit -b $$RPM_BUILD_DIR -d /usr/src/debug \
-i $@ > $@.id"'
make %{?_smp_mflags} all $MAKE_ARGS CONFIG_DEBUG_SECTION_MISMATCH=y
# Build u2mfn module
make -C %kernel_build_dir M=%_builddir/u2mfn modules
%install
# get rid of /usr/lib/rpm/brp-strip-debug
# strip removes too much from the vmlinux ELF binary
export NO_BRP_STRIP_DEBUG=true
export STRIP_KEEP_SYMTAB='*/vmlinux-*'
# /lib/modules/%kernelrelease-%build_flavor/build will be a stale symlink until the
# kernel-devel package is installed. Don't check for stale symlinks
# in the brp-symlink check:
export NO_BRP_STALE_LINK_ERROR=yes
cd %kernel_build_dir
mkdir -p %buildroot/boot
cp -p System.map %buildroot/boot/System.map-%kernelrelease
cp -p arch/x86/boot/bzImage %buildroot/boot/vmlinuz-%kernelrelease
cp .config %buildroot/boot/config-%kernelrelease
%if %install_vdso
# Install the unstripped vdso's that are linked in the kernel image
make vdso_install $MAKE_ARGS INSTALL_MOD_PATH=%buildroot
%endif
# Create a dummy initramfs with roughly the size the real one will have.
# That way, rpm will know that this package requires some additional
# space in /boot.
dd if=/dev/zero of=%buildroot/boot/initramfs-%kernelrelease.img \
bs=1M count=20
gzip -c9 < Module.symvers > %buildroot/boot/symvers-%kernelrelease.gz
make modules_install $MAKE_ARGS INSTALL_MOD_PATH=%buildroot
make modules_install $MAKE_ARGS INSTALL_MOD_PATH=%buildroot M=%_builddir/u2mfn
mkdir -p %buildroot/%src_install_dir
rm -f %buildroot/lib/modules/%kernelrelease/build
rm -f %buildroot/lib/modules/%kernelrelease/source
mkdir -p %buildroot/lib/modules/%kernelrelease/build
(cd %buildroot/lib/modules/%kernelrelease ; ln -s build source)
# dirs for additional modules per module-init-tools, kbuild/modules.txt
mkdir -p %buildroot/lib/modules/%kernelrelease/extra
mkdir -p %buildroot/lib/modules/%kernelrelease/updates
mkdir -p %buildroot/lib/modules/%kernelrelease/weak-updates
pushd %build_src_dir
cp --parents `find -type f -name "Makefile*" -o -name "Kconfig*"` %buildroot/lib/modules/%kernelrelease/build
cp -a scripts %buildroot/lib/modules/%kernelrelease/build
cp -a --parents arch/x86/include %buildroot/lib/modules/%kernelrelease/build/
cp -a include %buildroot/lib/modules/%kernelrelease/build/include
popd
cp Module.symvers %buildroot/lib/modules/%kernelrelease/build
cp System.map %buildroot/lib/modules/%kernelrelease/build
if [ -s Module.markers ]; then
cp Module.markers %buildroot/lib/modules/%kernelrelease/build
fi
rm -rf %buildroot/lib/modules/%kernelrelease/build/Documentation
cp .config %buildroot/lib/modules/%kernelrelease/build
rm -f %buildroot/lib/modules/%kernelrelease/build/scripts/*.o
rm -f %buildroot/lib/modules/%kernelrelease/build/scripts/*/*.o
cp -a scripts/* %buildroot/lib/modules/%kernelrelease/build/scripts/
cp -a include/* %buildroot/lib/modules/%kernelrelease/build/include/
cp -a --parents arch/x86/include/* %buildroot/lib/modules/%kernelrelease/build/
# Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
cp %buildroot/lib/modules/%kernelrelease/build/.config %buildroot/lib/modules/%kernelrelease/build/include/config/auto.conf
# Make sure the Makefile and version.h have a matching timestamp so that
# external modules can be built
touch -r %buildroot/lib/modules/%kernelrelease/build/Makefile %buildroot/lib/modules/%kernelrelease/build/include/generated/uapi/linux/version.h
touch -r %buildroot/lib/modules/%kernelrelease/build/.config %buildroot/lib/modules/%kernelrelease/build/include/config/auto.conf
if test -s vmlinux.id; then
cp vmlinux.id %buildroot/lib/modules/%kernelrelease/build/vmlinux.id
else
echo >&2 "*** WARNING *** no vmlinux build ID! ***"
fi
#
# save the vmlinux file for kernel debugging into the kernel-debuginfo rpm
#
mkdir -p %buildroot%{debuginfodir}/lib/modules/%kernelrelease
cp vmlinux %buildroot%{debuginfodir}/lib/modules/%kernelrelease
find %buildroot/lib/modules/%kernelrelease -name "*.ko" -type f >modnames
# mark modules executable so that strip-to-file can strip them
xargs --no-run-if-empty chmod u+x < modnames
# Generate a list of modules for block and networking.
fgrep /drivers/ modnames | xargs --no-run-if-empty nm -upA |
sed -n 's,^.*/\([^/]*\.ko\): *U \(.*\)$,\1 \2,p' > drivers.undef
collect_modules_list()
{
sed -r -n -e "s/^([^ ]+) \\.?($2)\$/\\1/p" drivers.undef |
LC_ALL=C sort -u > %buildroot/lib/modules/%kernelrelease/modules.$1
}
collect_modules_list networking \
'register_netdev|ieee80211_register_hw|usbnet_probe'
collect_modules_list block \
'ata_scsi_ioctl|scsi_add_host|scsi_add_host_with_dma|blk_init_queue|register_mtd_blktrans|scsi_esp_register|scsi_register_device_handler'
collect_modules_list drm \
'drm_open|drm_init'
collect_modules_list modesetting \
'drm_crtc_init'
# detect missing or incorrect license tags
rm -f modinfo
while read i
do
echo -n "${i#%buildroot/lib/modules/%kernelrelease/} " >> modinfo
/sbin/modinfo -l $i >> modinfo
done < modnames
egrep -v \
'GPL( v2)?$|Dual BSD/GPL$|Dual MPL/GPL$|GPL and additional rights$' \
modinfo && exit 1
rm -f modinfo modnames
# Move the devel headers out of the root file system
mkdir -p %buildroot/usr/src/kernels
mv %buildroot/lib/modules/%kernelrelease/build/* %buildroot/%src_install_dir/
mv %buildroot/lib/modules/%kernelrelease/build/.config %buildroot/%src_install_dir
rmdir %buildroot/lib/modules/%kernelrelease/build
ln -sf %src_install_dir %buildroot/lib/modules/%kernelrelease/build
# Abort if there are any undefined symbols
msg="$(/sbin/depmod -F %buildroot/boot/System.map-%kernelrelease \
-b %buildroot -ae %kernelrelease 2>&1)"
if [ $? -ne 0 ] || echo "$msg" | grep 'needs unknown symbol'; then
exit 1
fi
# in case of no firmware built - place empty dir
mkdir -p %buildroot/lib/firmware
mv %buildroot/lib/firmware %buildroot/lib/firmware-all
mkdir -p %buildroot/lib/firmware
mv %buildroot/lib/firmware-all %buildroot/lib/firmware/%kernelrelease
# Prepare initramfs for Qubes VM
mkdir -p %buildroot/%vm_install_dir
PATH="/sbin:$PATH" dracut --nomdadmconf --nolvmconf \
--kmoddir %buildroot/lib/modules/%kernelrelease \
--modules "kernel-modules qubes-vm-simple" \
--conf /dev/null --confdir /var/empty \
-d "xenblk xen-blkfront cdrom ext4 jbd2 crc16 dm_snapshot" \
%buildroot/%vm_install_dir/initramfs %kernelrelease || exit 1
# workaround for buggy dracut-044 in Fedora 25
# https://bugzilla.redhat.com/show_bug.cgi?id=1431317
# https://github.com/dracutdevs/dracut/issues/194
modules_dep=$(lsinitrd "%buildroot/%vm_install_dir/initramfs" \
"usr/lib/modules/%kernelrelease/modules.dep")
if [ -z "$modules_dep" ]; then
tmpdir=$(mktemp -d)
zcat "%buildroot/%vm_install_dir/initramfs" | cpio -imd -D "$tmpdir" || exit 1
mv "$tmpdir"/%buildroot/lib/modules/%kernelrelease/kernel \
"$tmpdir"/lib/modules/%kernelrelease/ || exit 1
depmod -F %buildroot/boot/System.map-%kernelrelease \
-b "$tmpdir" -a %kernelrelease || exit 1
pushd "$tmpdir"
find . -print0 | sort -z \
| cpio --null -R 0:0 -H newc -o --quiet \
| gzip > %buildroot/%vm_install_dir/initramfs || exit 1
popd
fi
cp -p arch/x86/boot/bzImage %buildroot/%vm_install_dir/vmlinuz
# Modules for Qubes VM
mkdir -p %buildroot%vm_install_dir/modules
cp -a %buildroot/lib/modules/%kernelrelease %buildroot%vm_install_dir/modules/
mkdir -p %buildroot%vm_install_dir/modules/firmware
cp -a %buildroot/lib/firmware/%kernelrelease %buildroot%vm_install_dir/modules/firmware/
# Include kernel headers for Qubes VM in "/lib/modules" - so kernel-devel
# package will be unnecessary there, regardless of distribution
rm -f %buildroot%vm_install_dir/modules/%kernelrelease/build
cp -a %buildroot/%src_install_dir %buildroot%vm_install_dir/modules/%kernelrelease/build
# remove files that will be auto generated by depmod at rpm -i time
for i in alias alias.bin ccwmap dep dep.bin ieee1394map inputmap isapnpmap ofmap pcimap seriomap symbols symbols.bin usbmap
do
rm -f %buildroot/lib/modules/%kernelrelease/modules.$i
done
%post
/sbin/depmod -a %{kernelrelease}
%posttrans
/bin/kernel-install add %{kernelrelease} /boot/vmlinuz-%{kernelrelease} || exit $?
# grubby (used by new-kernel-pkg) do not understand xen entries in grub2 config
if [ -x /sbin/new-kernel-pkg -a -e /boot/grub2/grub.cfg ]; then
grub2-mkconfig > /boot/grub2/grub.cfg
fi
%preun
/bin/kernel-install remove %{kernelrelease} /boot/vmlinuz-%{kernelrelease} || exit $?
%files
%defattr(-, root, root)
%ghost /boot/initramfs-%{kernelrelease}.img
/boot/System.map-%{kernelrelease}
/boot/config-%{kernelrelease}
/boot/symvers-%kernelrelease.gz
%attr(0644, root, root) /boot/vmlinuz-%{kernelrelease}
/lib/firmware/%{kernelrelease}
/lib/modules/%{kernelrelease}
%package devel
Summary: Development files necessary for building kernel modules
License: GPL v2 only
Group: Development/Sources
Provides: multiversion(kernel)
Provides: %name-devel = %kernelrelease
Provides: kernel-devel-uname-r = %kernelrelease
AutoReqProv: on
%description devel
This package contains files necessary for building kernel modules (and
kernel module packages) against the kernel.
%post devel
if [ -f /etc/sysconfig/kernel ]
then
. /etc/sysconfig/kernel || exit $?
fi
if [ "$HARDLINK" != "no" -a -x /usr/sbin/hardlink ]
then
(cd /usr/src/kernels/%{kernelrelease} &&
/usr/bin/find . -type f | while read f; do
hardlink -c /usr/src/kernels/*.fc*.*/$f $f
done)
fi
%files devel
%defattr(-,root,root)
/usr/src/kernels/%{kernelrelease}
%package qubes-vm
Summary: The Xen Kernel
Version: %{version}
Release: %{rel}
License: GPL v2 only
Group: System/Kernel
Url: http://www.kernel.org/
AutoReqProv: on
BuildRequires: coreutils module-init-tools sparse
Provides: multiversion(kernel-qubes-vm)
Provides: kernel-xen-domU
Provides: kernel-qubes-domU
Requires(pre): coreutils gawk
Requires(post): dracut
Requires(post): qubes-core-dom0
Conflicts: sysfsutils < 2.0
# root-lvm only works with newer udevs
Conflicts: udev < 118
Conflicts: lvm2 < 2.02.33
Provides: kernel-qubes-vm = %kernelrelease
%description qubes-vm
Qubes domU kernel.
%post qubes-vm
mkdir /tmp/qubes-modules-%kernelrelease
truncate -s 500M /tmp/qubes-modules-%kernelrelease.img
mkfs -t ext3 -F /tmp/qubes-modules-%kernelrelease.img > /dev/null
mount /tmp/qubes-modules-%kernelrelease.img /tmp/qubes-modules-%kernelrelease -o loop
cp -a -t /tmp/qubes-modules-%kernelrelease %vm_install_dir/modules/%kernelrelease
mkdir /tmp/qubes-modules-%kernelrelease/firmware
cp -a -t /tmp/qubes-modules-%kernelrelease/firmware %vm_install_dir/modules/firmware/%kernelrelease
cp %vm_install_dir/vmlinuz /tmp/qubes-modules-%kernelrelease/
cp %vm_install_dir/initramfs /tmp/qubes-modules-%kernelrelease/
umount /tmp/qubes-modules-%kernelrelease
rmdir /tmp/qubes-modules-%kernelrelease
mv /tmp/qubes-modules-%kernelrelease.img %vm_install_dir/modules.img
# If qubes-prefs isn't installed yet, the default kernel will be set by %post
# of qubes-core-dom0
type qubes-prefs &>/dev/null && qubes-prefs --set default-kernel %version-%plainrel
exit 0
%preun qubes-vm
if [ "`qubes-prefs -g default-kernel`" == "%version-%plainrel" ]; then
echo "This kernel version is set as default VM kernel, cannot remove"
exit 1
fi
if qvm-ls --kernel | grep -qw "%version-%plainrel"; then
echo "This kernel version is used by at least one VM, cannot remove"
exit 1
fi
exit 0
%files qubes-vm
%defattr(-, root, root)
%dir %vm_install_dir
%ghost %attr(0644, root, root) %vm_install_dir/modules.img
%attr(0644, root, root) %vm_install_dir/initramfs
%attr(0644, root, root) %vm_install_dir/vmlinuz
%vm_install_dir/modules
%changelog