mirror of
https://github.com/kata-containers/kata-containers.git
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9e8cd7d6df
use `merge_config.sh` script to generate the final `.config` file if the
`${arch}_kata_kvm_*` file doesn't exist.
Signed-off-by: Julio Montes <julio.montes@intel.com>
164 lines
4.7 KiB
Plaintext
164 lines
4.7 KiB
Plaintext
#
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# This is a special configuration of the Linux kernel, aimed exclusively
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# for running inside a container
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# This specialization allows us to optimize memory footprint and boot time.
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#
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Name: kata-linux-container
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Version: @VERSION@.@CONFIG_VERSION@
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Release: @RELEASE@
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License: GPL-2.0
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Summary: The Linux kernel optimized for running inside a container
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Group: System/Kernel
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Url: http://www.kernel.org/
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Source0: https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-@VERSION@.tar.xz
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Source1: kata-kernel-configs.tar.gz
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Source2: kata-multiarch.sh
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%define kversion %{version}-%{release}.container
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BuildRequires: bash >= 2.03
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BuildRequires: bc
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BuildRequires: binutils-devel
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%if 0%{?rhel_version}
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BuildRequires: elfutils-devel
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%endif
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%if 0%{?suse_version}
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BuildRequires: libelf-devel
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BuildRequires: fdupes
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%endif
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%if 0%{?fedora} || 0%{?centos_version}
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BuildRequires: pkgconfig(libelf)
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%endif
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BuildRequires: make >= 3.78
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BuildRequires: openssl-devel
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BuildRequires: flex
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BuildRequires: bison
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# don't strip .ko files!
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%global __os_install_post %{nil}
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%define debug_package %{nil}
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%define __strip /bin/true
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# Patches
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@RPM_PATCH_LIST@
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%description
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The Linux kernel.
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%package debug
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Summary: Debug components for the %{name} package
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Group: System/Kernel
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%description debug
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Debug components for the kata-linux-container package.
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This package includes the kernel config and the kernel map.
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%prep
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%setup -q -n linux-@VERSION@
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%setup -q -T -D -n linux-@VERSION@ -a 1
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cp %{SOURCE2} .
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chmod +x $(basename %{SOURCE2})
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# Patches
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@RPM_APPLY_PATCHES@
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%build
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BuildKernel() {
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local kernelArch=$(./kata-multiarch.sh -a %{_arch})
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ExtraVer="-%{release}.container"
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perl -p -i -e "s/^EXTRAVERSION.*/EXTRAVERSION = ${ExtraVer}/" Makefile
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make -s mrproper
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# Runtime .config selection based on kernelArch
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rm -f .config
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find kata-kernel-configs -name "${kernelArch}_kata_kvm_*" -exec cp {} .config \;
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if [ ! -f .config ]; then
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# Use fragments to generate the .config
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frag_dir="kata-kernel-configs/fragments"
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err_msg="not in final"
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r="$(KCONFIG_CONFIG=.config ARCH=${kernelArch} scripts/kconfig/merge_config.sh -r -n ${frag_dir}/common/* ${frag_dir}/${kernelArch}/* | grep "${err_msg}")" || true
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[ -z "${r}" ] || (echo "ERROR: ${r}"; exit 1)
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fi
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[ -f .config ] || (echo "ERROR: cannot find the kernel config file for the ${kernelArch} architecture"; exit 1)
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%if 0%{?rhel_version} || 0%{?suse_version}
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# RHEL in OBS has updated gcc.
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# https://github.com/kata-containers/packaging/pull/370#issuecomment-469620154
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sed -i -e 's/CONFIG_RETPOLINE=y/CONFIG_RETPOLINE=n/g' .config
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%endif
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%if 0%{?fedora}
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#Fedora uses gcc 8, build is failing due to warnings.
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export CFLAGS="-Wno-error=restrict"
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export EXTRA_CFLAGS="-Wno-format-truncation -Wno-cast-function-type -Wno-error=restrict -Wno-error"
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%endif
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# https://github.com/kata-containers/packaging/issues/394 enable reproducible builds:
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export KBUILD_BUILD_USER=katabuilduser
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export KBUILD_BUILD_HOST=katabuildhost
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# Default to zero seconds after midnight 1970-01-01 (the epoch)
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export KBUILD_BUILD_TIMESTAMP="$(LANG=C date -u -d "@${SOURCE_DATE_EPOCH:-0}")"
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make -s ARCH=$kernelArch oldconfig > /dev/null
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make -s CONFIG_DEBUG_SECTION_MISMATCH=y %{?_smp_mflags} ARCH=$kernelArch %{?sparse_mflags} || exit 1
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}
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BuildKernel
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%install
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InstallKernel() {
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compressedImage=$(./kata-multiarch.sh -i %{_arch})
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rawImage="vmlinux"
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KernelVer=%{kversion}
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KernelDir=%{buildroot}/usr/share/kata-containers
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mkdir -p ${KernelDir}
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if [ -n "$compressedImage" ]; then
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cp "$compressedImage" ${KernelDir}/vmlinuz-$KernelVer
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chmod 755 ${KernelDir}/vmlinuz-$KernelVer
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ln -sf vmlinuz-$KernelVer ${KernelDir}/vmlinuz.container
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fi
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cp $rawImage ${KernelDir}/vmlinux-$KernelVer
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chmod 755 ${KernelDir}/vmlinux-$KernelVer
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ln -sf vmlinux-$KernelVer ${KernelDir}/vmlinux.container
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cp .config "${KernelDir}/config-${KernelVer}"
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cp System.map "${KernelDir}/System.map-${KernelVer}"
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rm -f %{buildroot}/usr/lib/modules/$KernelVer/build
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rm -f %{buildroot}/usr/lib/modules/$KernelVer/source
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}
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InstallKernel
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rm -rf %{buildroot}/usr/lib/firmware
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%if 0%{?suse_version}
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%fdupes -s %{buildroot}
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%endif
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%files
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%dir /usr/share/kata-containers
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/usr/share/kata-containers/vmlinux-%{kversion}
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/usr/share/kata-containers/vmlinux.container
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%ifnarch ppc64le
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/usr/share/kata-containers/vmlinuz-%{kversion}
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/usr/share/kata-containers/vmlinuz.container
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%endif
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%files debug
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%defattr(-,root,root,-)
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/usr/share/kata-containers/config-%{kversion}
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/usr/share/kata-containers/System.map-%{kversion}
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