# Ignore double dash in version for rpmbuild
%define _wrong_version_format_terminate_build 0

%define config_name tizen_bcm2711_defconfig
%define config_name_rt tizen_bcm2711_rt_defconfig
%ifarch aarch64
%define buildarch arm64
%else
%define buildarch arm
%endif
%define target_board rpi4
%define variant %{buildarch}-%{target_board}

Name: rpi4-linux-kernel
Summary: The Linux Kernel for Raspberry Pi4
Version: 5.15.92
Release: 0
License: GPL-2.0
ExclusiveArch: %{arm} aarch64
Group: System/Kernel
Vendor: The Linux Community
URL: https://www.kernel.org
Source0:   linux-kernel-%{version}.tar.xz
BuildRoot: %{_tmppath}/%{name}-%{PACKAGE_VERSION}-root

%define fullVersion %{version}-%{variant}

BuildRequires: bc
BuildRequires: module-init-tools
BuildRequires: bison
BuildRequires: flex
BuildRequires: pkgconfig(openssl3)
BuildRequires: libunwind-devel
BuildRequires: libdw-devel
BuildRequires: libelf-devel
BuildRequires: elfutils
BuildRequires: xz-devel
BuildRequires: binutils-devel
BuildRequires: python3
BuildRequires: rsync

%description
The Linux Kernel, the operating system core itself

# kernel
%package -n %{variant}-linux-kernel
License: GPL-2.0
Summary: Tizen kernel for %{target_board}
Group: System/Kernel
Provides: %{variant}-kernel-uname-r = %{fullVersion}
Provides: linux-kernel = %{version}-%{release}

%description -n %{variant}-linux-kernel
This package contains the Linux kernel for Tizen (arch %{buildarch}, target board %{target_board})

%package -n %{variant}-rt-linux-kernel
License: GPL-2.0
Summary: Tizen kernel for %{target_board}
Group: System/Kernel
Provides: %{variant}-kernel-uname-r = %{fullVersion}-rt
Provides: linux-kernel = %{version}-%{release}-rt

%description -n %{variant}-rt-linux-kernel
This package contains the Linux kernel for Tizen (arch %{buildarch}, target board %{target_board})

# modules

%package -n %{variant}-linux-kernel-modules
Summary: Kernel modules for %{target_board}
Group: System/Kernel
Provides: %{variant}-kernel-modules = %{fullVersion}
Provides: %{variant}-kernel-modules-uname-r = %{fullVersion}

%description -n %{variant}-linux-kernel-modules
Kernel-modules includes the loadable kernel modules(.ko files) for %{target_board}

%package -n %{variant}-rt-linux-kernel-modules
Summary: Kernel modules for %{target_board}
Group: System/Kernel
Provides: %{variant}-kernel-modules = %{fullVersion}-rt
Provides: %{variant}-kernel-modules-uname-r = %{fullVersion}-rt

%description -n %{variant}-rt-linux-kernel-modules
Kernel-modules includes the loadable kernel modules(.ko files) for %{target_board}
with the PREEMPT_RT patch

# devel

%package -n %{variant}-linux-kernel-devel
License: GPL-2.0
Summary: Linux support kernel map and etc for other packages
Group: System/Kernel
Provides: %{variant}-kernel-devel = %{fullVersion}
Provides: %{variant}-kernel-devel-uname-r = %{fullVersion}

%description -n %{variant}-linux-kernel-devel
This package provides kernel map and etc information.

%package -n %{variant}-rt-linux-kernel-devel
License: GPL-2.0
Summary: Linux support kernel map and etc for other packages
Group: System/Kernel
Provides: %{variant}-kernel-devel = %{fullVersion}-rt
Provides: %{variant}-kernel-devel-uname-r = %{fullVersion}-rt

%description -n %{variant}-rt-linux-kernel-devel
This package provides kernel map and etc information.

#headers
%package -n %{variant}-linux-kernel-headers
License: GPL-2.0
Summary: Linux support headers for userspace development
Group: System/Kernel
Provides: kernel-headers-tizen-dev

%description -n %{variant}-linux-kernel-headers
This package provides userspaces headers from the Linux kernel. These
headers are used by the installed headers for GNU glibc and other system
 libraries.

%package -n linux-kernel-perf
Summary: The perf performance counter tool
Group: System/Kernel
Provides: perf = %{version}

%description -n linux-kernel-perf
This package provides the "perf" tool that can be used to monitor performance
counter events as well as various kernel internal events.

%prep
%setup -q

%build
%{?asan:/usr/bin/gcc-unforce-options}
%{?ubsan:/usr/bin/gcc-unforce-options}

for target in %{variant} %{variant}-rt; do
    echo "-${target}" > localversion-tizen

    # extract uapi headers
    make O=build/${target} headers_install %{?_smp_mflags}

    # Set config file
    case $target in
	%{variant})
	    make O=build/${target} %{config_name} %{?_smp_mflags}

            # Build perf
            WERROR=0 make O=build/${target} -s -C tools/lib/traceevent %{?_smp_mflags}
            WERROR=0 make O=build/${target} -s -C tools/perf EXTRA_CFLAGS="-fPIE -rdynamic" %{?_smp_mflags}
	;;
	%{variant}-rt)
	    cat _localversion-rt > localversion-rt
	    make O=build/${target} %{config_name_rt} %{?_smp_mflags}
	;;
    esac

    # Build Image/Image.gz
    make O=build/${target} %{?_smp_mflags}

    # Build dtbs
    make O=build/${target} dtbs %{?_smp_mflags}

    # Build modules
    make O=build/${target} modules %{?_smp_mflags}
done

%install
QA_SKIP_BUILD_ROOT="DO_NOT_WANT"; export QA_SKIP_BUILD_ROOT

# Destination directories
mkdir -p %{buildroot}/boot
mkdir -p %{buildroot}/lib/modules

# Install boot binary files
%ifarch aarch64
install -m 644 rpi4/boot/config_64bit.txt %{buildroot}/boot/config.txt
%else
install -m 644 rpi4/boot/config.txt %{buildroot}/boot/
%endif
install -m 644 rpi4/boot/LICENCE.broadcom %{buildroot}/boot/
install -m 644 rpi4/boot/start*.elf %{buildroot}/boot/
install -m 644 rpi4/boot/fixup*.dat %{buildroot}/boot/

# Install kernel DTB
%ifarch aarch64
install -m 644 build/%{variant}/arch/%{buildarch}/boot/dts/broadcom/bcm*.dtb %{buildroot}/boot/
%else
install -m 644 build/%{variant}/arch/%{buildarch}/boot/dts/bcm*.dtb %{buildroot}/boot/
%endif
mkdir -p %{buildroot}/boot/overlays
install -m 644 build/%{variant}/arch/%{buildarch}/boot/dts/overlays/*.dtbo %{buildroot}/boot/overlays/

# Install kernel headers
make O=build/%{variant} headers_install %{?_smp_mflags} INSTALL_HDR_PATH=%{buildroot}/usr

for target in %{variant} %{variant}-rt; do
    # Install kernel binary
    case $target in
	%{variant})
%ifarch aarch64
            install -m 644 build/${target}/arch/%{buildarch}/boot/Image %{buildroot}/boot/Image
%else
            install -m 644 build/${target}/arch/%{buildarch}/boot/zImage %{buildroot}/boot/zImage
%endif

            # Install perf
            WERROR=0 make O=build/${target} -s -C tools/perf EXTRA_CFLAGS="-fPIE -rdynamic" DESTDIR=%{buildroot}/usr install
            rm -rf %{buildroot}/usr/etc
            rm -rf %{buildroot}/usr/lib/debug
            rm -rf %{buildroot}/usr/lib/perf
            rm -rf %{buildroot}/usr/share

	;;
	%{variant}-rt)
%ifarch aarch64
            install -m 644 build/${target}/arch/%{buildarch}/boot/Image %{buildroot}/boot/Image_rt
%else
            install -m 644 build/${target}/arch/%{buildarch}/boot/zImage %{buildroot}/boot/zImage_rt
%endif
	;;
    esac

    # Install modules
    make O=build/${target} INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=%{buildroot} modules_install

    # Copy files for devel package
    mkdir -p %{buildroot}/boot/kernel/devel/kernel-devel-${target}
    rsync -r \
	  --include "/scripts/**.c" \
	  --exclude "/debug*.list" \
	  --exclude "/documentation.list" \
	  --exclude "/*.manifest" \
	  --exclude "/packaging/" \
	  --exclude "/.gbs.conf" \
	  --exclude "/.git**" \
	  --exclude ".gitignore" \
	  --exclude "*\.c" \
	  --exclude ".tmp_vmlinux*" \
	  --exclude ".*dtb*tmp" \
	  --exclude ".*dtb" \
	  --exclude "*.*tmp" \
	  --exclude "vmlinux" \
	  --exclude "Image" \
	  --exclude "zImage" \
	  --exclude "Image.gz" \
	  --exclude "*.cmd" \
	  --exclude "*.ko" \
	  --exclude "*.o" \
	  --exclude "*.S" \
	  --exclude "*.HEX" \
	  --exclude "/build/" \
	  ./ build/${target}/ %{buildroot}/boot/kernel/devel/kernel-devel-${target}
done

%clean
rm -rf %{buildroot}

%post -n %{variant}-rt-linux-kernel
%ifarch aarch64
mv /boot/Image_rt /boot/Image
%else
mv /boot/zImage_rt /boot/zImage
%endif

%preun -n %{variant}-rt-linux-kernel
%ifarch aarch64
mv /boot/Image /boot/Image_rt
%else
mv /boot/zImage /boot/zImage_rt
%endif

%files -n %{variant}-linux-kernel-modules
%ifarch aarch64
/lib/modules/*%{variant}-v8/
%else
/lib/modules/*%{variant}-v7l/
%endif

%files -n %{variant}-rt-linux-kernel-modules
%ifarch aarch64
/lib/modules/*%{variant}-rt-v8/
%else
/lib/modules/*%{variant}-rt-v7l/
%endif

%files -n %{variant}-linux-kernel-devel
/boot/kernel/devel/*%{variant}/

%files -n %{variant}-rt-linux-kernel-devel
/boot/kernel/devel/*%{variant}-rt/

%files -n %{variant}-linux-kernel
%license COPYING
%ifarch aarch64
/boot/Image
%else
/boot/zImage
%endif
/boot/bcm*.dtb
/boot/overlays/*.dtbo
/boot/config.txt
/boot/LICENCE.broadcom
/boot/start*.elf
/boot/fixup*.dat

%files -n %{variant}-rt-linux-kernel
%license COPYING
%ifarch aarch64
/boot/Image_rt
%else
/boot/zImage_rt
%endif
/boot/bcm*.dtb
/boot/overlays/*.dtbo
/boot/config.txt
/boot/LICENCE.broadcom
/boot/start*.elf
/boot/fixup*.dat

%files -n %{variant}-linux-kernel-headers
/usr/include/*

%files -n linux-kernel-perf
%license COPYING
/usr/bin/*
/usr/libexec/*
/usr/lib/traceevent/*