# vim:ts=4 sw=4 noet ft=spec
# Kernel specific macro definitions.

%__modinfo		/sbin/modinfo

# Alternative kernel type/version
%_alt_kernel	%{nil}%{?alt_kernel:-%{?alt_kernel}}
%_build_kernels	%{nil}%{?build_kernels:%{?build_kernels}}%{!?build_kernels:%{?alt_kernel}}

# Macros for building kernel packages for multiple kernels from same spec
# Usage:
#
# %{expand:%buildrequires_kernel kernel%%{_alt_kernel}-module-build >= 3:2.6.20.2}}
# %{expand:%create_kernel_packages}
# %{expand:%build_kernel_packages}
# %{expand:%install_kernel_packages}
#
%buildrequires_kernel()	%(echo %{_build_kernels} | tr , '\\n' | while read n ; do \
echo %%undefine alt_kernel \
[ -z "$n" -o "$n" = "head" ] || echo %%define alt_kernel $n \
echo "BuildRequires:	%{*}" \
done)

%create_kernel_packages	%(echo %{_build_kernels} | tr , '\\n' | while read n ; do \
echo %%undefine alt_kernel \
[ -z "$n" -o "$n" = "head" ] || echo %%define alt_kernel $n \
echo %%kernel_pkg \
done)

%build_kernel_packages	%(echo %{_build_kernels} | tr , '\\n' | while read n ; do \
echo %%undefine alt_kernel \
[ -z "$n" -o "$n" = "head" ] || echo %%define alt_kernel $n \
echo %%build_kernel_pkg \
done)

%install_kernel_packages	%(echo %{_build_kernels} | tr , '\\n' | while read n ; do \
echo %%undefine alt_kernel \
[ -z "$n" -o "$n" = "head" ] || echo %%define alt_kernel $n \
echo %%install_kernel_pkg \
done)

# The directory holding Linux kernel sources
%_kernelsrcdir	/usr/src/linux%{_alt_kernel}

# rpm -qf on kernel version.h file
%__kernel_qf()		%(R=$(cd %{_kernelsrcdir} 2>/dev/null && LC_ALL=C rpm -q --qf '%*' -f include/linux/version.h 2>/dev/null | grep -v 'is not'); echo ${R:-ERROR})

# kernel %{name} and kernel %{epoch}:%{version}-%{release} macro respecing alt_kernel
%kernel_name	%(N=%{__kernel_qf %{N}}; echo ${N%%-headers})
%kernel_version	%{__kernel_qf %|E?{%{E}:}|%{V}-%{R}}

# -n drm to generate kernel%{_alt_kernel}-drm dependency
%releq_kernel(n:)		%{kernel_name}%{?-n:-%{-n*}} = %{kernel_version}
%releq_kernel_up(n:)	%{kernel_name}-up%{?-n:-%{-n*}} = %{kernel_version}
%releq_kernel_smp(n:)	%{kernel_name}-smp%{?-n:-%{-n*}} = %{kernel_version}

# -s post to generate Requires(post) dependency
%requires_releq_kernel(s:n:)		Requires%{-s:(%{-s*})}: %releq_kernel
%requires_releq_kernel_up(s:n:)		Requires%{-s:(%{-s*})}: %releq_kernel_up
%requires_releq_kernel_smp(s:n:)	Requires%{-s:(%{-s*})}: %releq_kernel_smp

# kernel version-release handling, `uname -r` used for building/installing kernel modules
%_kernel_ver	 %( \\
	Z=$([ -f '%{_kernelsrcdir}/include/generated/utsrelease.h' ] && \\
		awk -F'"' '/UTS_RELEASE/{print $2}' %{_kernelsrcdir}/include/{linux/version,generated/utsrelease}.h 2>/dev/null || \\
		awk -F'"' '/UTS_RELEASE/{print $2}' %{_kernelsrcdir}/include/linux/{version,utsrelease}.h 2>/dev/null); \\
	Z=${Z:-$(awk -F' = ' '/^VERSION/{v=$2} /^PATCHLEVEL/{p=$2} /^SUBLEVEL/{s=$2} /^EXTRAVERSION/{e=$2} END {printf("%d.%d.%d%s", v, p, s, e)}' \\
		%{_kernelsrcdir}/Makefile 2>/dev/null)}; \\
	echo ${Z:-ERROR}; \\
)
# left for compatibility
%__kernel_ver		%{_kernel_ver}

# package version to be used in @release field
%_kernel_ver_str	 %( \\
	Z=$([ -f '%{_kernelsrcdir}/include/generated/utsrelease.h' ] && \\
		awk -F'"' '/UTS_RELEASE/{gsub(/-/,"_",$2); print $2}' %{_kernelsrcdir}/include/{linux/version,generated/utsrelease}.h 2>/dev/null || \\
		awk -F'"' '/UTS_RELEASE/{gsub(/-/,"_",$2); print $2}' %{_kernelsrcdir}/include/linux/{version,utsrelease}.h 2>/dev/null); \\
	Z=${Z:-$(awk -F' = ' '/^VERSION/{v=$2} /^PATCHLEVEL/{p=$2} /^SUBLEVEL/{s=$2} /^EXTRAVERSION/{e=$2} END {z=sprintf("%d.%d.%d%s", v, p, s, e); gsub(/-/,"_",z); print z}' \\
		%{_kernelsrcdir}/Makefile 2>/dev/null)}; \\
	echo ${Z:-ERROR}; \\
)

%_kernel_version_code	 %( \\
	Z=$(awk '/LINUX_VERSION_CODE/{print $3}' %{_kernelsrcdir}/include/linux/version.h 2>/dev/null); \\
	echo ${Z:-16777215}; \\
)

%_kernel_version_magic()	 %(echo $((%{1} * 65536 + %{2} * 256 + %{3})))

%_host_base_arch	%{expand:%%global _host_base_arch %(echo %{_host_cpu} | sed 's/i.86/i386/;s/athlon/i386/;s/pentium./i386/;s/amd64/x86_64/;s/ia32e/x86_64/;s/x32/x86_64/;s/sparcv./sparc/;s/arm.*/arm/')}%_host_base_arch
%_target_base_arch	%{expand:%%global _target_base_arch %(echo %{_target_cpu} | sed 's/i.86/i386/;s/athlon/i386/;s/pentium./i386/;s/amd64/x86_64/;s/ia32e/x86_64/;s/x32/x86_64/;s/sparcv./sparc/;s/arm.*/arm/')}%_target_base_arch

# Compression used for %__spec_install_post_compress_modules
# Supported values:
# - "gzip -9nf" (module-init-tools and kmod)
# - "xz" (kmod)
# - "xz -9e" (kmod), however size difference with "xz" default options is very minimal
# @since 1.707
%kmod_compress_cmd %{__gzip} -9nf

#-----------------------------------------------------------------
# Find and compress all kernel modules
#
# Requires: find
# Depends: kmod_compress_cmd
#
#%no_install_post_compress_modules	1
%__spec_install_post_compress_modules { \
%{!?no_install_post_compress_modules: __spec_install_post_compress_modules() { \
%{!?debug:set +x;} \
	if [ -d $RPM_BUILD_ROOT/lib/modules ]; then \
		tool=$(%{kmod_compress_cmd} --version | head -n1); \
		case "$tool" in gzip*) ext=gz;; xz*) ext=xz;; esac; \
		q=$(find $RPM_BUILD_ROOT/lib/modules -name '*.ko' -type f -print); \
		if [ "$q" ]; then \
			printf "Compress %d kernel modules..." $(echo "$q" | wc -l); \
			echo "$q" | xargs -r %{kmod_compress_cmd}; \
			echo "DONE"; \
			find $RPM_BUILD_ROOT/lib/modules -name '*.ko' -type l -printf "%p %l\n" | \
			while read a b; do ln -sf $b.$ext $a.$ext; rm -f $a; done; \
		fi; \
	fi; \
}; __spec_install_post_compress_modules } }

# Build modules for kernels 2.6
# Author: Przemyslaw Iskra <sparky@pld-linux.org>
#
# Usage:
#	%build_kernel_modules -m <modules> -C <directory>
#
#  remember that proper Makefile is still required
# Options:
#  -m <modules> (required) -- comma-separated list of modules to save,
#		without .ko extension, may be placed in subdirectory
#  -C <directory> -- change to <directory> before doing anything
#  -p <arg>, -P <arg> -- arguments passeed to make scripts
#  -c -- do not execute make clean
#  <additional arguments> -- all additional arguments will be passed to
#		make modules
#
# Additional patching supported via here document. Try:
#	%build_kernel_modules -m module <<'EOF'
#	your patch script here
#	EOF
# Don't use it unless patching depends on config options.

# Developer note: don't touch it unless you know how to handle '\'.
# - \ in script expands to nothing
# - \\\ in script expands to \
# - \\\ inside definition expands to nothing
# - \\\\\\\ inside definition expands to \
# - in last line \ has to touch arguments so arguments passing
#   in new lines (using \) will be supported

%build_kernel_modules(p:P:m:C:c)									\
%{!?-m:%{error:%{0}: Required module name/list missing} exit 1}		\
																	\
%define Opts														\\\\\\\
%if "%{_target_base_arch}" != "%{_host_base_arch}"					\\\
	%if "%{_host_base_arch}" == "x86_64" && "%{_target_base_arch}" == "i386" \\\
	CC="%{__cc}" ARCH=%{_target_base_arch}							\\\
	%else															\\\
	ARCH=%{_target_base_arch} CROSS_COMPILE=%{_target_cpu}-pld-linux- \\\
	%endif															\\\
%else																\\\
	%ifarch aarch64													\\\
	ARCH=arm64														\\\
	%endif															\\\
	%ifarch ppc ppc64												\\\
	ARCH=powerpc													\\\
	%endif															\\\
	%ifnarch aarch64 ppc ppc64										\\\
	ARCH=%{_target_base_arch}										\\\
	%endif															\\\
	CC="%{__cc}"													\\\
%endif																\
%define	MakeOpts HOSTCC="%{__cc}" SYSSRC=%{_kernelsrcdir} SYSOUT=$PWD/o \\\\\\\
		%{?with_verbose:V=1} %{Opts}						\
																	\
%{?-C:cd %{-C*}}													\
compile() {															\
	local L="<" PATCH_SH;											\
	[[ '%{*}' != *$L$L* ]] || PATCH_SH="set -x -e;$(cat)"			\
	set -e -x														\
																	\
	[ -r "%{_kernelsrcdir}/.config" ] || exit 1						\
	rm -rf o														\
	install -d o/include/linux o/include/generated o/arch/x86/include o/arch/powerpc/lib	\
	ln -sf %{_kernelsrcdir}/.config o/.config						\
	ln -sf %{_kernelsrcdir}/Module.symvers o/Module.symvers			\
	if [ -f %{_kernelsrcdir}/include/generated/autoconf.h ]; then	\
		ln -sf %{_kernelsrcdir}/include/generated/autoconf.h o/include/generated/autoconf.h \
		ln -s ../generated/autoconf.h o/include/linux/autoconf.h	\
	else															\
		ln -sf %{_kernelsrcdir}/include/linux/autoconf.h o/include/linux/autoconf.h \
	fi																\
	if [ -d %{_kernelsrcdir}/arch/x86/include/generated ]; then		\
		ln -s %{_kernelsrcdir}/arch/x86/include/generated o/arch/x86/include	\
	fi																\
																	\
	set +x															\
	[ -z "$PATCH_SH" ] || echo "$PATCH_SH" | %__spec_build_shell	\
	set -x															\
																	\
	install -d o/include/config										\
	touch o/include/config/MARKER									\
	ln -sf %{_kernelsrcdir}/include/config/auto.conf o/include/config/auto.conf	\
	ln -sf %{_kernelsrcdir}/scripts o/scripts						\
																	\
	%{!?-c:%{__make} -C %{_kernelsrcdir} clean						\\\
		RCS_FIND_IGNORE="-name '*.[ks]o' -o"						\\\
		${1+"$@"}													\\\
		M=$PWD %{MakeOpts}}											\
																	\
	%{__make} -C %{_kernelsrcdir} modules							\\\
		${1+"$@"}													\\\
		M=$PWD CONSTIFY_PLUGIN="" %{MakeOpts}						\
%{?-C:cd -}															\
}																	\
compile %{*}														\
%{nil}

%build_kernel_modules_compat(p:P:m:C:c)								\
%{!?-m:%{error:%{0}: Required module name/list missing} exit 1}		\
																	\
%define Opts														\\\\\\\
%if "%{_target_base_arch}" != "%{_host_base_arch}"					\\\
	%if "%{_host_base_arch}" == "x86_64" && "%{_target_base_arch}" == "i386" \\\
	CC="%{__cc}" ARCH=%{_target_base_arch}							\\\
	%else															\\\
	ARCH=%{_target_base_arch} CROSS_COMPILE=%{_target_cpu}-pld-linux- \\\
	%endif															\\\
%else																\\\
	CC="%{__cc}"													\\\
%endif																\
%define	MakeOpts HOSTCC="%{__cc}" SYSSRC=%{_kernelsrcdir} SYSOUT=$PWD/o \\\\\\\
		%{?with_verbose:V=1} %{Opts}						\
																	\
%{?-C:cd %{-C*}}													\
compile() {															\
	local L="<" PATCH_SH;											\
	[[ '%{*}' != *$L$L* ]] || PATCH_SH="set -x -e;$(cat)"			\
	set -e -x														\
	local cfgs='%{?with_dist_kernel:%{?with_smp: smp}%{?with_up: up}}%{!?with_dist_kernel: nondist}' \
																	\
for cfg in ${cfgs:-dist}; do                                        \
	[ -r "%{_kernelsrcdir}/config-$cfg" ] || exit 1					\
																	\
	rm -rf o														\
	install -d o/include/linux o/include/generated o/arch/powerpc/lib	\
	ln -sf %{_kernelsrcdir}/config-$cfg o/.config					\
	ln -sf %{_kernelsrcdir}/Module.symvers-$cfg o/Module.symvers	\
	if [ -f %{_kernelsrcdir}/include/generated/autoconf-$cfg.h ]; then	\
		ln -sf %{_kernelsrcdir}/include/generated/autoconf-$cfg.h o/include/generated/autoconf.h \
		ln -s ../generated/autoconf.h o/include/linux/autoconf.h 	\
	else															\
		ln -sf %{_kernelsrcdir}/include/linux/autoconf-$cfg.h o/include/linux/autoconf.h \
	fi																\
																	\
	set +x															\
	[ -z "$PATCH_SH" ] || echo "$PATCH_SH" | %__spec_build_shell	\
	set -x															\
																	\
	%if %{with dist_kernel}	|| %(test -f %{_kernelsrcdir}/scripts/bin2c ; echo $?)	\
		%{__make} -j1 -C %{_kernelsrcdir} prepare scripts			\\\
			%{-p*} %{-P*}											\\\
			%{MakeOpts}												\
	%else															\
		install -d o/include/config									\
		touch o/include/config/MARKER								\
		ln -sf %{_kernelsrcdir}/include/config/auto-$cfg.conf o/include/config/auto.conf	\
		ln -sf %{_kernelsrcdir}/scripts o/scripts					\
	%endif															\
																	\
	%{!?-c:%{__make} -C %{_kernelsrcdir} clean						\\\
		RCS_FIND_IGNORE="-name '*.[ks]o' -o"						\\\
		${1+"$@"}													\\\
		M=$PWD %{MakeOpts}}											\
																	\
	%{__make} -C %{_kernelsrcdir} modules							\\\
		${1+"$@"}													\\\
		M=$PWD CONSTIFY_PLUGIN="" %{MakeOpts}						\
																	\
	for MODULE in {%{-m*},}; do										\
		[ -z "${MODULE}" ] || mv ${MODULE}{,-$cfg}.ko				\
	done															\
done																\
%{?-C:cd -}															\
}																	\
compile %{*}														\
%{nil}


# Install kernel modules built by %build_kernel_modules
# Author: Przemyslaw Iskra <sparky@pld-linux.org>
#
# Usage:
#	%install_kernel_modules -m <modules> -d <directory>
#
# Options:
#  -m <modules> (required) -- comma-separated list of modules to install,
#		without .ko extension, may be placed in subdirectory
#  -d <directory> (required) -- in what subdirectory modules should be
#		installed (eg. misc, kernel/drivers/net)
#  -s <suffix> -- suffix to use when installing modules, useful when module
#		with same name exists in kernel already
#  -n <file> -- name of modprobe config file to use (without .conf extension)
#		for defining aliases, only useful with -s
#  -D <directory> -- DESTDIR, base directory for installed files,
#		defaults to RPM_BUILD_ROOT

%install_kernel_modules(m:d:s:n:D:)									\
%{!?-m:%{error:%{0}: Required module name (-m) missing}exit 1}		\
%{!?-d:%{error:%{0}: Required module directory missing}exit 1}		\
%{?-n:%{!?-s:%{error:%{0}: Modprobe .conf file requires module suffix}exit 1}} \
																	\
INSTALLROOT=%{-D*}													\
[ -n "$INSTALLROOT" ] || INSTALLROOT=$RPM_BUILD_ROOT				\
																	\
%{!?debug:set +x;}													\
																	\
for MODULE in {%{-m*},}; do											\
	[ -n "${MODULE}" ] || continue									\
	MNAME=${MODULE##*/}												\
	install -m 644 -D ${MODULE}.ko $INSTALLROOT/lib/modules/%{_kernel_ver}/%{-d*}/${MNAME}%{-s:-%{-s*}}.ko	\
	%{?-s:install -d $INSTALLROOT%{_sysconfdir}/modprobe.d/%{_kernel_ver}									\
		echo "alias ${MNAME} ${MNAME}-%{-s*}" >> $INSTALLROOT%{_sysconfdir}/modprobe.d/%{_kernel_ver}/%{-n*}.conf}	\
done																\
unset INSTALLROOT													\
%{nil}

%install_kernel_modules_compat(m:d:s:n:D:)							\
%{!?-m:%{error:%{0}: Required module name (-m) missing}exit 1}		\
%{!?-d:%{error:%{0}: Required module directory missing}exit 1}		\
%{?-n:%{!?-s:%{error:%{0}: Modprobe .conf file requires module suffix}exit 1}} \
																	\
INSTALLROOT=%{-D*}													\
[ -n "$INSTALLROOT" ] || INSTALLROOT=$RPM_BUILD_ROOT				\
																	\
%{!?debug:set +x;}													\
local cfgs='%{?with_dist_kernel:%{?with_smp: smp}%{?with_up: up}}%{!?with_dist_kernel: nondist}' \
																	\
for MODULE in {%{-m*},}; do											\
	[ -n "${MODULE}" ] || continue									\
	for cfg in ${cfgs:-dist}; do                                    \
		[ "$cfg" = smp ] && suf=smp || suf=							\
		MNAME=${MODULE##*/}											\
		install -m 644 -D ${MODULE}-$cfg.ko							\\\
			$INSTALLROOT/lib/modules/%{_kernel_ver}$suf/%{-d*}/${MNAME}%{-s:-%{-s*}}.ko			\
		%{?-s:install -d $INSTALLROOT%{_sysconfdir}/modprobe.d/%{_kernel_ver}$suf							\
			echo "alias ${MNAME} ${MNAME}-%{-s*}"					\\\
			>> $INSTALLROOT%{_sysconfdir}/modprobe.d/%{_kernel_ver} $suf/%{-n*}.conf}						\
	done															\
done																\
unset INSTALLROOT													\
%{nil}