# Maintainer: Eric Naim <dnaim@cachyos.org>

# Fedora bits
%define __spec_install_post %{__os_install_post}
%define _default_patch_fuzz 2
%define _disable_source_fetch 0
%define debug_package %{nil}
%define make_build make %{?_lto_args} %{?_smp_mflags}
%undefine __brp_mangle_shebangs
%undefine _auto_set_build_flags
%undefine _include_frame_pointers

# Linux Kernel Versions
%define _basekver 6.12
%define _stablekver 11
%define _rpmver %{version}-%{release}
%define _kver %{_rpmver}.%{_arch}

%if %{_stablekver} == 0
%define _tarkver %{_basekver}
%else
%define _tarkver %{version}
%endif

# Build a minimal a kernel via modprobed.db
# file to reduce build times
%define _build_minimal 0

# Builds the kernel with clang and enables
# ThinLTO
%define _build_lto 0

# Builds nvidia-open kernel modules with
# the kernel
%define _build_nv 1
%define _nv_ver 565.77
%define _nv_pkg open-gpu-kernel-modules-%{_nv_ver}

# Define the tickrate used by the kernel
# Valid values: 100, 250, 300, 500, 600, 750 and 1000
# An invalid value will not fail and continue to use
# 1000Hz tickrate
%define _hz_tick 1000

# Defines the x86_64 ISA level used
# to compile the kernel
# Valid values are 1-4
# An invalid value will continue and use
# x86_64_v3
%define _x86_64_lvl 3

# Define variables for directory paths
# to be used during packaging
%define _kernel_dir /lib/modules/%{_kver}
%define _devel_dir %{_usrsrc}/kernels/%{_kver}

%define _patch_src https://raw.githubusercontent.com/CachyOS/kernel-patches/master/%{_basekver}

%if %{_build_lto}
# Define build environment variables to build the kernel with clang
%define _lto_args CC=clang CXX=clang++ LD=ld.lld LLVM=1 LLVM_IAS=1
%endif

%define _module_args KERNEL_UNAME=%{_kver} IGNORE_PREEMPT_RT_PRESENCE=1 SYSSRC=%{_builddir}/linux-%{_tarkver} SYSOUT=%{_builddir}/linux-%{_tarkver}

Name:   kernel-cachyos-lts%{?_lto_args:-lto}
Summary:Linux BORE %{?_lto_args:+ LTO }Cachy Sauce Kernel by CachyOS with other patches and improvements.
Version:%{_basekver}.%{_stablekver}
Release:cachylts3%{?_lto_args:.lto}%{?dist}
License:GPL-2.0-only
URL:https://cachyos.org

Requires:   kernel-core-uname-r = %{_kver}
Requires:   kernel-modules-uname-r = %{_kver}
Requires:   kernel-modules-core-uname-r = %{_kver}
Provides:   kernel-cachyos-lts%{?_lto_args:-lto} > 6.6.71-clts1.0%{?_lto_args:.lto}%{?dist}
Provides:   installonlypkg(kernel)
Obsoletes:  kernel-cachyos-lts%{?_lto_args:-lto} <= 6.6.71-clts1.0%{?_lto_args:.lto}%{?dist}

BuildRequires:  bc
BuildRequires:  bison
BuildRequires:  dwarves
BuildRequires:  elfutils-devel
BuildRequires:  flex
BuildRequires:  gcc
BuildRequires:  gettext-devel
BuildRequires:  kmod
BuildRequires:  make
BuildRequires:  openssl
BuildRequires:  openssl-devel
BuildRequires:  perl-Carp
BuildRequires:  perl-devel
BuildRequires:  perl-generators
BuildRequires:  perl-interpreter
BuildRequires:  python3-devel
BuildRequires:  python3-pyyaml
BuildRequires:  python-srpm-macros

%if %{_build_lto}
BuildRequires:  clang
BuildRequires:  lld
BuildRequires:  llvm
%endif

%if %{_build_nv}
BuildRequires:  gcc-c++
%endif

# Indexes 0-9 are reserved for the kernel. 10-19 will be reserved for NVIDIA
Source0:https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-%{_tarkver}.tar.xz
Source1:https://raw.githubusercontent.com/CachyOS/linux-cachyos/master/linux-cachyos-lts/config

%if %{_build_minimal}
# The default modprobed.db provided is used for linux-cachyos CI.
# This should not be used for production and ideally should only be used for compile tests.
# Note that any modprobed.db file is accepted
Source2:https://raw.githubusercontent.com/CachyOS/linux-cachyos/master/modprobed.db
%endif

%if %{_build_nv}
Source10:   https://github.com/NVIDIA/open-gpu-kernel-modules/archive/%{_nv_ver}/%{_nv_pkg}.tar.gz
%endif

Patch0: %{_patch_src}/all/0001-cachyos-base-all.patch
Patch1: %{_patch_src}/sched/0001-bore-cachy.patch

%if %{_build_lto}
Patch2: %{_patch_src}/misc/dkms-clang.patch
%endif

%if %{_build_nv}
Patch10:%{_patch_src}/misc/nvidia/0001-Make-modeset-and-fbdev-default-enabled.patch
Patch11:%{_patch_src}/misc/nvidia/0002-Do-not-error-on-unkown-CPU-Type-and-add-Zen5-support.patch
Patch12:%{_patch_src}/misc/nvidia/0004-silence-event-assert-until-570.patch
Patch13:%{_patch_src}/misc/nvidia/0005-nvkms-Sanitize-trim-ELD-product-name-strings.patch
%endif

%description
The meta package for %{name}.

%prep
%setup -q %{?SOURCE10:-b 10} -n linux-%{_tarkver}
%autopatch -p1 -v -M 9

cp %{SOURCE1} .config

# Default configs to always enable
# Enable CACHY sauce and the scheduler
# used in the default linux-cachyos kernel
scripts/config -e CACHY -e SCHED_BORE

# Use SElinux by default
# https://github.com/sirlucjan/copr-linux-cachyos/pull/1
scripts/config --set-str CONFIG_LSM lockdown,yama,integrity,selinux,bpf,landlock

# Do not change the system's hostname
scripts/config -u DEFAULT_HOSTNAME

case %{_hz_tick} in
100|250|300|500|600|750|1000)
scripts/config -e HZ_%{_hz_tick} --set-val HZ %{_hz_tick};;
*)
echo "Invalid tickrate value, using default 1000"
scripts/config -e HZ_1000 --set-val HZ 1000;;
esac

%if %{_x86_64_lvl} < 5 && %{_x86_64_lvl} > 0
scripts/config --set-val X86_64_VERSION %{_x86_64_lvl}
%else
echo "Invalid x86_64 ISA Level. Using x86_64_v3"
scripts/config --set-val X86_64_VERSION 3
%endif

%if %{_build_lto}
scripts/config -e LTO_CLANG_THIN
%endif

%if %{_build_minimal}
%make_build LSMOD=%{SOURCE2} localmodconfig
%else
%make_build olddefconfig
%endif

diff -u %{SOURCE1} .config || :

%if %{_build_nv}
cd %{_builddir}/%{_nv_pkg}/kernel-open
%patch -P 10 -p1
cd ..
%autopatch -p1 -v -m 11 -M 19
%endif

%build
%make_build EXTRAVERSION=-%{release}.%{_arch} all
%make_build -C tools/bpf/bpftool vmlinux.h feature-clang-bpf-co-re=1

%if %{_build_nv}
cd %{_builddir}/%{_nv_pkg}
CFLAGS= CXXFLAGS= LDFLAGS= %make_build %{_module_args} IGNORE_CC_MISMATCH=yes modules
%endif

%install
echo "Installing the kernel image..."
install -Dm644 "$(%make_build -s image_name)" "%{buildroot}%{_kernel_dir}/vmlinuz"
zstdmt -19 < Module.symvers > %{buildroot}%{_kernel_dir}/symvers.zst

echo "Installing kernel modules..."
ZSTD_CLEVEL=19 %make_build INSTALL_MOD_PATH="%{buildroot}" INSTALL_MOD_STRIP=1 DEPMOD=/doesnt/exist modules_install

echo "Installing files for the development package..."
install -Dt %{buildroot}%{_devel_dir} -m644 .config Makefile Module.symvers System.map tools/bpf/bpftool/vmlinux.h
cp .config %{buildroot}%{_kernel_dir}/config
cp System.map %{buildroot}%{_kernel_dir}/System.map
cp --parents `find  -type f -name "Makefile*" -o -name "Kconfig*"` %{buildroot}%{_devel_dir}
rm -rf %{buildroot}%{_devel_dir}/scripts
rm -rf %{buildroot}%{_devel_dir}/include
cp -a scripts %{buildroot}%{_devel_dir}
rm -rf %{buildroot}%{_devel_dir}/scripts/tracing
rm -f %{buildroot}%{_devel_dir}/scripts/spdxcheck.py

# The cp commands below are needed for parity with Fedora's packaging
# Install files that are needed for `make scripts` to succeed
cp -a --parents security/selinux/include/classmap.h %{buildroot}%{_devel_dir}
cp -a --parents security/selinux/include/initial_sid_to_string.h %{buildroot}%{_devel_dir}
cp -a --parents tools/include/tools/be_byteshift.h %{buildroot}%{_devel_dir}
cp -a --parents tools/include/tools/le_byteshift.h %{buildroot}%{_devel_dir}

# Install files that are needed for `make prepare` to succeed -- Generic
cp -a --parents tools/include/linux/compiler* %{buildroot}%{_devel_dir}
cp -a --parents tools/include/linux/types.h %{buildroot}%{_devel_dir}
cp -a --parents tools/build/Build.include %{buildroot}%{_devel_dir}
cp --parents tools/build/fixdep.c %{buildroot}%{_devel_dir}
cp --parents tools/objtool/sync-check.sh %{buildroot}%{_devel_dir}
cp -a --parents tools/bpf/resolve_btfids %{buildroot}%{_devel_dir}

cp --parents security/selinux/include/policycap_names.h %{buildroot}%{_devel_dir}
cp --parents security/selinux/include/policycap.h %{buildroot}%{_devel_dir}

cp -a --parents tools/include/asm %{buildroot}%{_devel_dir}
cp -a --parents tools/include/asm-generic %{buildroot}%{_devel_dir}
cp -a --parents tools/include/linux %{buildroot}%{_devel_dir}
cp -a --parents tools/include/uapi/asm %{buildroot}%{_devel_dir}
cp -a --parents tools/include/uapi/asm-generic %{buildroot}%{_devel_dir}
cp -a --parents tools/include/uapi/linux %{buildroot}%{_devel_dir}
cp -a --parents tools/include/vdso %{buildroot}%{_devel_dir}
cp --parents tools/scripts/utilities.mak %{buildroot}%{_devel_dir}
cp -a --parents tools/lib/subcmd %{buildroot}%{_devel_dir}
cp --parents tools/lib/*.c %{buildroot}%{_devel_dir}
cp --parents tools/objtool/*.[ch] %{buildroot}%{_devel_dir}
cp --parents tools/objtool/Build %{buildroot}%{_devel_dir}
cp --parents tools/objtool/include/objtool/*.h %{buildroot}%{_devel_dir}
cp -a --parents tools/lib/bpf %{buildroot}%{_devel_dir}
cp --parents tools/lib/bpf/Build %{buildroot}%{_devel_dir}

# Misc headers
cp -a --parents arch/x86/include %{buildroot}%{_devel_dir}
cp -a --parents tools/arch/x86/include %{buildroot}%{_devel_dir}
cp -a include %{buildroot}%{_devel_dir}/include
cp -a sound/soc/sof/sof-audio.h %{buildroot}%{_devel_dir}/sound/soc/sof
cp -a tools/objtool/objtool %{buildroot}%{_devel_dir}/tools/objtool/
cp -a tools/objtool/fixdep %{buildroot}%{_devel_dir}/tools/objtool/

# Install files that are needed for `make prepare` to succeed -- for x86_64
cp -a --parents arch/x86/entry/syscalls/syscall_32.tbl %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/entry/syscalls/syscall_64.tbl %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/tools/relocs_32.c %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/tools/relocs_64.c %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/tools/relocs.c %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/tools/relocs_common.c %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/tools/relocs.h %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/purgatory/purgatory.c %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/purgatory/stack.S %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/purgatory/setup-x86_64.S %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/purgatory/entry64.S %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/boot/string.h %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/boot/string.c %{buildroot}%{_devel_dir}
cp -a --parents arch/x86/boot/ctype.h %{buildroot}%{_devel_dir}

cp -a --parents scripts/syscalltbl.sh %{buildroot}%{_devel_dir}
cp -a --parents scripts/syscallhdr.sh %{buildroot}%{_devel_dir}

cp -a --parents tools/arch/x86/include/asm %{buildroot}%{_devel_dir}
cp -a --parents tools/arch/x86/include/uapi/asm %{buildroot}%{_devel_dir}
cp -a --parents tools/objtool/arch/x86/lib %{buildroot}%{_devel_dir}
cp -a --parents tools/arch/x86/lib/ %{buildroot}%{_devel_dir}
cp -a --parents tools/arch/x86/tools/gen-insn-attr-x86.awk %{buildroot}%{_devel_dir}
cp -a --parents tools/objtool/arch/x86/ %{buildroot}%{_devel_dir}

# Final cleanups ala Fedora
echo "Cleaning up development files..."
find %{buildroot}%{_devel_dir}/scripts \( -iname "*.o" -o -iname "*.cmd" \) -exec rm -f {} +
find %{buildroot}%{_devel_dir}/tools \( -iname "*.o" -o -iname "*.cmd" \) -exec rm -f {} +
touch -r %{buildroot}%{_devel_dir}/Makefile \
%{buildroot}%{_devel_dir}/include/generated/uapi/linux/version.h \
%{buildroot}%{_devel_dir}/include/config/auto.conf

# These links will be owned by the modules package, creating a broken
# link unless the -devel package is installed. why??
rm -rf %{buildroot}%{_kernel_dir}/build
ln -s %{_devel_dir} %{buildroot}%{_kernel_dir}/build
ln -s %{_kernel_dir}/build %{buildroot}%{_kernel_dir}/source

# Create stub initramfs to inflate disk space requirements.
# This should hopefully prevent some initramfs failures due to
# insufficient space in /boot (#bz #530778)
# 90 seems to be a safe value nowadays. It is slightly inflated than the
# measured average to also account for installed vmlinuz in /boot
echo "Creating stub initramfs..."
install -dm755 %{buildroot}/boot
dd if=/dev/zero of=%{buildroot}/boot/initramfs-%{_kver}.img bs=1M count=90

%if %{_build_nv}
cd %{_builddir}/%{_nv_pkg}
echo "Installing NVIDIA open kernel modules..."
install -Dt %{buildroot}%{_kernel_dir}/nvidia -m644 kernel-open/*.ko
find %{buildroot}%{_kernel_dir}/nvidia -name '*.ko' -exec zstd --rm -19 {} +
install -Dt %{buildroot}/%{_defaultlicensedir}/%{name}-nvidia-open -m644 COPYING
%endif

%package core
Summary:Linux BORE Cachy Sauce Kernel by CachyOS with other patches and improvements
AutoReq:no
Conflicts:  xfsprogs < 4.3.0-1
Conflicts:  xorg-x11-drv-vmmouse < 13.0.99
Provides:   kernel = %{_rpmver}
Provides:   kernel-core-uname-r = %{_kver}
Provides:   kernel-uname-r = %{_kver}
Provides:   installonlypkg(kernel)
Requires:   kernel-modules-uname-r = %{_kver}
Requires(pre):  /usr/bin/kernel-install
Requires(pre):  coreutils
Requires(pre):  dracut >= 027
Requires(pre):  systemd >= 203-2
Requires(pre):  ((linux-firmware >= 20150904-56.git6ebf5d57) if linux-firmware)
Requires(preun):systemd >= 200
Recommends: linux-firmware

%description core
The kernel package contains the Linux kernel (vmlinuz), the core of any
Linux operating system.  The kernel handles the basic functions
of the operating system: memory allocation, process allocation, device
input and output, etc.

%post core
mkdir -p %{_localstatedir}/lib/rpm-state/%{name}
touch %{_localstatedir}/lib/rpm-state/%{name}/installing_core_%{_kver}

%posttrans core
rm -f %{_localstatedir}/lib/rpm-state/%{name}/installing_core_%{_kver}
if [ ! -e /run/ostree-booted ]; then
/bin/kernel-install add %{_kver} %{_kernel_dir}/vmlinuz || exit $?
if [[ ! -e "/boot/symvers-%{_kver}.zst" ]]; then
cp "%{_kernel_dir}/symvers.zst" "/boot/symvers-%{_kver}.zst"
if command -v restorecon &>/dev/null; then
restorecon "/boot/symvers-%{_kver}.zst"
fi
fi
fi

%preun core
/bin/kernel-install remove %{_kver} || exit $?
if [ -x /usr/sbin/weak-modules ]; then
/usr/sbin/weak-modules --remove-kernel %{_kver} || exit $?
fi

%files core
%license COPYING
%ghost /boot/initramfs-%{_kver}.img
%{_kernel_dir}/vmlinuz
%{_kernel_dir}/symvers.zst
%{_kernel_dir}/config
%{_kernel_dir}/System.map

%package modules
Summary:Kernel modules package for %{name}
Provides:   kernel-modules = %{_rpmver}
Provides:   kernel-modules-core = %{_rpmver}
Provides:   kernel-modules-extra = %{_rpmver}
Provides:   kernel-modules-uname-r = %{_kver}
Provides:   kernel-modules-core-uname-r = %{_kver}
Provides:   kernel-modules-extra-uname-r = %{_kver}
Provides:   installonlypkg(kernel-module)
Requires:   kernel-uname-r = %{_kver}

%description modules
This package provides kernel modules for the %{name}-core kernel package.

%post modules
/sbin/depmod -a %{_kver}
if [ ! -f %{_localstatedir}/lib/rpm-state/%{name}/installing_core_%{_kver} ]; then
mkdir -p %{_localstatedir}/lib/rpm-state/%{name}
touch %{_localstatedir}/lib/rpm-state/%{name}/need_to_run_dracut_%{_kver}
fi

%posttrans modules
rm -f %{_localstatedir}/lib/rpm-state/%{name}/need_to_run_dracut_%{_kver}
if [ ! -e /run/ostree-booted ]; then
if [ -f %{_localstatedir}/lib/rpm-state/%{name}/need_to_run_dracut_%{_kver} ]; then
echo "Running: dracut -f --kver %{_kver}"
dracut -f --kver "%{_kver}" || exit $?
fi
fi

%files modules
%dir %{_kernel_dir}
%{_kernel_dir}/modules.builtin
%{_kernel_dir}/modules.builtin.modinfo
%{_kernel_dir}/modules.order
%{_kernel_dir}/build
%{_kernel_dir}/source
%{_kernel_dir}/kernel

%package devel
Summary:Development package for building kernel modules to match %{name}
Provides:   kernel-devel = %{_rpmver}
Provides:   kernel-devel-uname-r = %{_kver}
Provides:   installonlypkg(kernel)
AutoReqProv:no
Requires(pre):  findutils
Requires:   findutils
Requires:   perl-interpreter
Requires:   openssl-devel
Requires:   elfutils-libelf-devel
Requires:   bison
Requires:   flex
Requires:   make

%if %{_build_lto}
Requires:   clang
Requires:   lld
Requires:   llvm
%else
Requires:   gcc
%endif

%description devel
This package provides kernel headers and makefiles sufficient to build modules against %{name}.

%post devel
if [ -f /etc/sysconfig/kernel ]; then
. /etc/sysconfig/kernel || exit $?
fi
if [ "$HARDLINK" != "no" -a -x /usr/bin/hardlink -a ! -e /run/ostree-booted ]; then
(cd /usr/src/kernels/%{_kver} &&
/usr/bin/find . -type f | while read f; do
hardlink -c /usr/src/kernels/*%{?dist}.*/$f $f > /dev/null
done;
)
fi

%files devel
%{_devel_dir}

%package devel-matched
Summary:Meta package to install matching core and devel packages for %{name}
Provides:   kernel-devel-matched = %{_rpmver}
Requires:   %{name}-core = %{_rpmver}
Requires:   %{name}-devel = %{_rpmver}

%description devel-matched
This meta package is used to install matching core and devel packages for %{name}.

%files devel-matched

%if %{_build_nv}
%package nvidia-open
Summary:nvidia-open %{_nv_ver} kernel modules for %{name}
Provides:   nvidia-kmod >= %{_nv_ver}
Provides:   installonlypkg(kernel-module)
Requires:   kernel-uname-r = %{_kver}
Conflicts:  akmod-nvidia
Recommends: xorg-x11-drv-nvidia >= %{_nv_ver}

%description nvidia-open
This package provides nvidia-open %{_nv_ver} kernel modules for %{name}.

%post nvidia-open
/sbin/depmod -a %{_kver}

%files nvidia-open
%license %{_defaultlicensedir}/%{name}-nvidia-open/COPYING
%{_kernel_dir}/nvidia
%endif

%files