# _arch is undefined if /usr/lib/rpm/platform/*/macros was not included.
%{!?_arch: %define _arch dummy}
%{!?make: %define make make}
%define makeflags %{?_smp_mflags} ARCH=%{ARCH}
%define __spec_install_post /usr/lib/rpm/brp-compress || :
%define debug_package %{nil}

Name: kernel
Summary: The GNU Linux-libre Kernel
Version: %(echo %{KERNELRELEASE} | sed -e 's/-/_/g')
Release: %{pkg_release}
License: GPL
Group: System Environment/Kernel
Vendor: The GNU Linux-libre Community
URL: https://linux-libre.fsfla.org
Source0: linux.tar.gz
Source1: config
Source2: diff.patch
Provides: kernel-%{KERNELRELEASE}
BuildRequires: bc binutils bison dwarves
BuildRequires: (elfutils-libelf-devel or libelf-devel) flex
BuildRequires: gcc make openssl openssl-devel perl python3 rsync

%description
The GNU Linux-libre Kernel, the operating system core itself

%package headers
Summary: Header files for the GNU Linux-libre for use by glibc
Group: Development/System
Obsoletes: kernel-headers
Provides: kernel-headers = %{version}
%description headers
Kernel-headers includes the C header files that specify the interface
between the GNU Linux-libre and userspace libraries and programs.  The
header files define structures and constants that are needed for
building most standard programs and are also needed for rebuilding the
glibc package.

%if %{with_devel}
%package devel
Summary: Development package for building kernel modules to match the %{version} kernel
Group: System Environment/Kernel
AutoReqProv: no
%description -n kernel-devel
This package provides kernel headers and makefiles sufficient to build modules
against the %{version} kernel package.
%endif

%prep
%setup -q -n linux
cp %{SOURCE1} .config
patch -p1 < %{SOURCE2}

%build
%{make} %{makeflags} KERNELRELEASE=%{KERNELRELEASE} KBUILD_BUILD_VERSION=%{release}

%install
mkdir -p %{buildroot}/lib/modules/%{KERNELRELEASE}
cp $(%{make} %{makeflags} -s image_name) %{buildroot}/lib/modules/%{KERNELRELEASE}/vmlinuz
%{make} %{makeflags} INSTALL_MOD_PATH=%{buildroot} modules_install
%{make} %{makeflags} INSTALL_HDR_PATH=%{buildroot}/usr headers_install
cp System.map %{buildroot}/lib/modules/%{KERNELRELEASE}
cp .config %{buildroot}/lib/modules/%{KERNELRELEASE}/config
if %{make} %{makeflags} run-command KBUILD_RUN_COMMAND='test -d ${srctree}/arch/${SRCARCH}/boot/dts' 2>/dev/null; then
	%{make} %{makeflags} INSTALL_DTBS_PATH=%{buildroot}/lib/modules/%{KERNELRELEASE}/dtb dtbs_install
fi
ln -fns /usr/src/kernels/%{KERNELRELEASE} %{buildroot}/lib/modules/%{KERNELRELEASE}/build
%if %{with_devel}
%{make} %{makeflags} run-command KBUILD_RUN_COMMAND='${srctree}/scripts/package/install-extmod-build %{buildroot}/usr/src/kernels/%{KERNELRELEASE}'
%endif

{
	for x in System.map config kernel modules.builtin \
			modules.builtin.modinfo modules.order vmlinuz; do
		echo "/lib/modules/%{KERNELRELEASE}/${x}"
	done

	for x in alias alias.bin builtin.alias.bin builtin.bin dep dep.bin \
					devname softdep symbols symbols.bin; do
		echo "%ghost /lib/modules/%{KERNELRELEASE}/modules.${x}"
	done

	for x in System.map config vmlinuz; do
		echo "%ghost /boot/${x}-%{KERNELRELEASE}"
	done

	if [ -d "%{buildroot}/lib/modules/%{KERNELRELEASE}/dtb" ];then
		echo "/lib/modules/%{KERNELRELEASE}/dtb"
		find "%{buildroot}/lib/modules/%{KERNELRELEASE}/dtb" -printf "%%%ghost /boot/dtb-%{KERNELRELEASE}/%%P\n"
	fi

	echo "%exclude /lib/modules/%{KERNELRELEASE}/build"
} > %{buildroot}/kernel.list

%clean
rm -rf %{buildroot}

%post
if [ -x /usr/bin/kernel-install ]; then
	/usr/bin/kernel-install add %{KERNELRELEASE} /lib/modules/%{KERNELRELEASE}/vmlinuz
fi
for file in vmlinuz System.map config; do
	if ! cmp --silent "/lib/modules/%{KERNELRELEASE}/${file}" "/boot/${file}-%{KERNELRELEASE}"; then
		cp "/lib/modules/%{KERNELRELEASE}/${file}" "/boot/${file}-%{KERNELRELEASE}"
	fi
done
if [ -d "/lib/modules/%{KERNELRELEASE}/dtb" ] && \
   ! diff -rq "/lib/modules/%{KERNELRELEASE}/dtb" "/boot/dtb-%{KERNELRELEASE}" >/dev/null 2>&1; then
	rm -rf "/boot/dtb-%{KERNELRELEASE}"
	cp -r "/lib/modules/%{KERNELRELEASE}/dtb" "/boot/dtb-%{KERNELRELEASE}"
fi
if [ ! -e "/lib/modules/%{KERNELRELEASE}/modules.dep" ]; then
	/usr/sbin/depmod %{KERNELRELEASE}
fi

%preun
if [ -x /usr/bin/kernel-install ]; then
kernel-install remove %{KERNELRELEASE}
fi

%files -f %{buildroot}/kernel.list
%defattr (-, root, root)
%exclude /kernel.list

%files headers
%defattr (-, root, root)
/usr/include

%if %{with_devel}
%files devel
%defattr (-, root, root)
/usr/src/kernels/%{KERNELRELEASE}
/lib/modules/%{KERNELRELEASE}/build
%endif