# =============================================================================
# KERNEL SPEC - Ro-ASD Linux Kernel (EXPERIMENTAL)
# Gaming & Low-Latency Optimized - Vanilla Based
# =============================================================================
%global debug_package %{nil}
%global __strip /bin/true
%global _build_id_links none
%global _default_patch_fuzz 2
%global _disable_source_fetch 0

# === Basic Information ===
Name:            ro-kernel-experimental
%global branch   experimental
%global buildid  .ro_%{branch}
Version:         7.0
Release:         100%{?dist}
Summary:         Ro-ASD Experimental Kernel - Gaming & Low-Latency Optimized
License:         GPLv2
URL:             https://github.com/Project-Ro-ASD/ro-kernel
Vendor:          Ro-ASD Kernel Team <https://github.com/Project-Ro-ASD>
ExclusiveArch:   x86_64

# === Macro Definitions ===
%define kverrel %{version}-%{release}%{?buildid}.%{_arch}
%define kverstr %{version}-%{release}%{?buildid}

# Compression settings
%global compression xz
%global compression_flags --compress
%global compext xz

# === Sources ===
Source0:         https://cdn.kernel.org/pub/linux/kernel/v7.x/linux-%{version}.tar.xz
Source1:         config

# === Patches (With URLs) ===
# Based on patches from Nobara Project (https://github.com/Nobara-Project/rpm-sources/blob/43/baseos/kernel/6.19)
# All patches licensed under GPLv2

Patch0:          0001-bore-roasd-7.0.patch
Patch1:          0001-Allow-to-set-custom-USB-pollrate-for-specific-device-roasd-7.0.patch
Patch2:          valve-gamescope-framerate-control-fixups-roasd-7.0.patch
Patch3:          capture-device-nv12-fixup.patch
Patch4:          0857-hwmon-nct6775-Add-ROG-STRIX-X870-I-GAMING-WIFI.patch
Patch5:          xpadneo-kernel-integration-roasd-7.0.patch
Patch6:          xpadneo-kernel-integration-roasd-fix-7.0.patch
Patch7:          MA350.patch
Patch8:          xe-nonx86-roasd-7.0.patch
Patch9:          linux-surface-roasd-7.0.patch

# === Build Dependencies ===
BuildRequires:   bash bc binutils bison flex gcc gcc-c++ make perl-interpreter
BuildRequires:   rsync openssl openssl-devel elfutils-libelf-devel dwarves
BuildRequires:   python3 python3-devel python3-pyyaml
BuildRequires:   kernel-rpm-macros
BuildRequires:   kmod bash coreutils tar git-core which
BuildRequires:   bzip2 xz findutils m4 perl-Carp perl-devel perl-generators diffutils gawk
BuildRequires:   asciidoc xmlto python3-docutils
BuildRequires:   libcap-devel libcap-ng-devel ncurses-devel
BuildRequires:   libtraceevent-devel libtracefs-devel libbpf-devel >= 0.6.0

# === Package Dependencies ===
Requires:        linux-firmware >= 20150904
Requires(pre):   coreutils systemd >= 203
Requires(post):  %{name}-modules = %{version}-%{release}

%description
Ro-ASD Experimental Linux Kernel - Gaming & Low-Latency Optimized

This kernel is based on vanilla Linux 7.0 with gaming optimizations.

Includes patches from:
- Nobara Project (BORE scheduler, gaming optimizations)
- CachyOS (performance improvements)
- Valve Corporation (gamescope support)

Optimized for:
- Low latency gaming
- High performance scheduling (BORE)
- Gaming peripherals support
- Streaming/recording (OBS compatible)

License: GPLv2
Third-party patches retain their original licenses.

# === CORE PACKAGE ===
%package core
Summary:         Experimental Kernel core package (vmlinuz)
Provides:        installonlypkg(kernel)
Provides:        kernel-experimental = %{version}-%{release}
Provides:        kernel-experimental-core = %{version}-%{release}
Provides:        kernel-experimental-uname-r = %{kverrel}
Provides:        kernel-experimental-core-uname-r = %{kverrel}
Provides:        kernel-ro-experimental = %{version}-%{release}
Requires:        bash coreutils linux-firmware
Requires:        /usr/bin/kernel-install
Requires:        %{name}-modules = %{version}-%{release}

%description core
The Ro-ASD Experimental kernel core package containing the vmlinuz binary.

Optimized for gaming with:
- BORE Scheduler for better responsiveness
- 1000Hz timer for low latency
- Performance CPU governor
- Gaming peripheral support

Credits:
- Based on vanilla kernel from kernel.org
- BORE scheduler from CachyOS/Nobara Project
- Gaming optimizations from Nobara Project

# === MODULES PACKAGE ===
%package modules
Summary:         Kernel modules for the Ro-ASD experimental kernel
Provides:        installonlypkg(kernel-module)
Provides:        kernel-experimental-modules = %{version}-%{release}
Provides:        kernel-experimental-modules-uname-r = %{kverrel}
Provides:        kernel-ro-experimental-modules = %{version}-%{release}
Requires:        kmod

%description modules
Loadable kernel modules for the Ro-ASD experimental kernel.

Compatible with NVIDIA/AMD proprietary drivers via akmods.

# === DEVEL PACKAGE ===
%package devel
Summary:         Development headers for building external modules
Provides:        kernel-experimental-devel = %{version}-%{release}
Provides:        kernel-experimental-devel-uname-r = %{kverrel}
Provides:        kernel-ro-experimental-devel = %{version}-%{release}
AutoReqProv:     no
Requires:        findutils perl-interpreter openssl-devel
Requires:        elfutils-libelf-devel bison flex make gcc
Requires:        %{name}-core = %{version}-%{release}
Enhances:        akmods dkms

%description devel
Development headers and makefiles required for building external kernel modules.

Required for:
- NVIDIA/AMD proprietary drivers (akmods)
- DKMS modules
- VirtualBox/VMware kernel modules
- WireGuard, ZFS, etc.

# === PREP ===
%prep
%setup -q -n linux-%{version}
cp %{SOURCE1} .config

%if 0%{?nopatches} == 0
patch -p1 -i %{PATCH0}  # BORE
patch -p1 -i %{PATCH1}  # USB pollrate
patch -p1 -i %{PATCH2}  # gamescope
patch -p1 -i %{PATCH3}  # NV12
patch -p1 -i %{PATCH4}  # ROG hwmon
patch -p1 -i %{PATCH5}  # xpadneo
patch -p1 -i %{PATCH6}  # xpadneofix
patch -p1 -i %{PATCH7}  # MA350
patch -p1 -i %{PATCH8}  # xe nonx86
patch -p1 -i %{PATCH9}  # surface
%endif

make %{?_smp_mflags} olddefconfig
cp .config config-linux-%{branch}

# === BUILD ===
%build
make %{?_smp_mflags} KERNELRELEASE=%{kverrel} bzImage modules KCFLAGS="-g0 -O2"

# === INSTALL ===
%install
mkdir -p %{buildroot}/boot
mkdir -p %{buildroot}/lib/modules/%{kverrel}
mkdir -p %{buildroot}/usr/src/kernels/%{kverrel}
ImageName=$(make KERNELRELEASE=%{kverrel} image_name | tail -n 1)
cp -v $ImageName %{buildroot}/boot/vmlinuz-%{kverrel}
chmod 755 %{buildroot}/boot/vmlinuz-%{kverrel}
cp -v $ImageName %{buildroot}/lib/modules/%{kverrel}/vmlinuz
chmod 755 %{buildroot}/lib/modules/%{kverrel}/vmlinuz
make %{?_smp_mflags} INSTALL_MOD_PATH=%{buildroot} \
KERNELRELEASE=%{kverrel} modules_install
cp -v .config %{buildroot}/boot/config-%{kverrel}
cp -v System.map %{buildroot}/boot/System.map-%{kverrel}
cp -v .config %{buildroot}/lib/modules/%{kverrel}/config
cp -v System.map %{buildroot}/lib/modules/%{kverrel}/System.map

# Development headers preparation
cd %{_builddir}/linux-%{version}
rm -f %{buildroot}/lib/modules/%{kverrel}/build
rm -f %{buildroot}/lib/modules/%{kverrel}/source
mkdir -p %{buildroot}/lib/modules/%{kverrel}/build
(cd %{buildroot}/lib/modules/%{kverrel} ; ln -s build source)
cp --parents `find -type f -name "Makefile*" -o -name "Kconfig*"` \
%{buildroot}/lib/modules/%{kverrel}/build
[ -e Module.symvers ] && cp Module.symvers %{buildroot}/lib/modules/%{kverrel}/build
cp System.map %{buildroot}/lib/modules/%{kverrel}/build
[ -e Module.symvers ] && cp Module.symvers %{buildroot}/lib/modules/%{kverrel}/symvers
xz -f %{buildroot}/lib/modules/%{kverrel}/symvers || true
cp -a scripts %{buildroot}/lib/modules/%{kverrel}/build/
rm -rf %{buildroot}/lib/modules/%{kverrel}/build/scripts/tracing
cp -a include %{buildroot}/lib/modules/%{kverrel}/build/include
%ifarch x86_64
cp -a --parents arch/x86/entry/syscalls/syscall_*.tbl \
%{buildroot}/lib/modules/%{kverrel}/build/
cp -a --parents arch/x86/tools/relocs*.c \
%{buildroot}/lib/modules/%{kverrel}/build/
%endif
mkdir -p %{buildroot}/usr/src/kernels
mv %{buildroot}/lib/modules/%{kverrel}/build %{buildroot}/usr/src/kernels/%{kverrel}
ln -sf /usr/src/kernels/%{kverrel} %{buildroot}/lib/modules/%{kverrel}/build
/sbin/depmod -b %{buildroot} -F %{buildroot}/lib/modules/%{kverrel}/System.map %{kverrel} || :

# === POST SCRIPTS ===
%post core
:

%posttrans core
/usr/bin/kernel-install add %{kverrel} /lib/modules/%{kverrel}/vmlinuz || exit $?
if command -v grubby &>/dev/null; then
echo "Experimental kernel installed. Use grubby to set as default if desired."
fi

%preun core
/usr/bin/kernel-install remove %{kverrel} /lib/modules/%{kverrel}/vmlinuz || exit $?

%post modules
/sbin/depmod -a %{kverrel}

%postun modules
/sbin/depmod -a %{kverrel}

%post devel
if [ "$HARDLINK" != "no" ] && [ -x /usr/bin/hardlink ]; then
(cd /usr/src/kernels/%{kverrel} && /usr/bin/find . -type f | while read f; do hardlink -c /usr/src/kernels/*/$f $f 2>/dev/null || : ; done) || :
fi

# === FILES ===
%files core
%license COPYING
%attr(0755,root,root) /boot/vmlinuz-%{kverrel}
%attr(0644,root,root) /boot/config-%{kverrel}
%attr(0644,root,root) /boot/System.map-%{kverrel}
%ghost %attr(0600,root,root) /boot/initramfs-%{kverrel}.img
%ghost %attr(0644,root,root) /boot/symvers-%{kverrel}.%{compext}
%dir /lib/modules/%{kverrel}
/lib/modules/%{kverrel}/vmlinuz
/lib/modules/%{kverrel}/config
/lib/modules/%{kverrel}/System.map
/lib/modules/%{kverrel}/symvers.xz

%files modules
%dir /lib/modules/%{kverrel}
/lib/modules/%{kverrel}/kernel/
/lib/modules/%{kverrel}/modules.*

%exclude /lib/modules/%{kverrel}/build
%exclude /lib/modules/%{kverrel}/source

%files devel
%dir /usr/src/kernels
/usr/src/kernels/%{kverrel}/
/lib/modules/%{kverrel}/build
/lib/modules/%{kverrel}/source

%changelog
* Fri Mar 27 2026 Ro-ASD Kernel Team <https://github.com/Project-Ro-ASD> - 7.0-100
- Initial experimental kernel release
- Based on vanilla Linux 7.0 (kernel.org)
- BORE scheduler from CachyOS Project
- Gaming optimizations and low-latency config
- Patches from:
  * Nobara Project (https://github.com/Nobara-Project/rpm-sources/blob/43/baseos/kernel/6.19)
  * Valve Corporation (gamescope)
- x86_64 architecture only
- Debug symbols disabled for performance
- Compatible with NVIDIA/AMD akmods