# =============================================================================
# KERNEL SPEC - Ro-ASD Linux Kernel (EXPERIMENTAL)
# Vanilla Linux 7.0 + Fedora-derived config + experimental patches
# =============================================================================

%global debug_package %{nil}
%global __strip /bin/true
%global _build_id_links none
%global _default_patch_fuzz 2
%global _disable_source_fetch 0
%global __brp_mangle_shebangs %{nil}

# Optional patch gates
# Kernel-side xpadneo integration is not recommended by default. Prefer DKMS/RPM.
%{!?with_xpadneo_kernel:%global with_xpadneo_kernel 0}
%{!?with_linux_surface:%global with_linux_surface 0}
%{!?with_xe_nonx86:%global with_xe_nonx86 0}

# === Basic Information ===
Name:            ro-kernel-experimental
%global branch   experimental
%global buildid  .ro_%{branch}
Version:         7.0
Release:         105%{?dist}
Summary:         Ro-ASD Experimental Kernel - Gaming and 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 ===
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

# === Meta package ===
Requires:        %{name}-core = %{version}-%{release}
Requires:        %{name}-modules = %{version}-%{release}

%description
Ro-ASD Experimental Linux Kernel.

This package is a small metapackage that installs the matching core and modules
packages. The kernel is based on vanilla Linux 7.0, uses a Fedora-derived x86_64
config as the compatibility baseline, and applies selected experimental patches.

Experimental policy:
- The prepared Source1 config is the single source of truth for kernel options.
- This spec applies selected experimental patches and then runs olddefconfig only.
- xpadneo should normally be shipped as a separate DKMS/RPM package, not merged
  into the kernel tree. Kernel-side xpadneo patches are gated off by default.

# === CORE PACKAGE ===
%package core
Summary:         Experimental kernel core package
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,
System.map and boot config.

# === 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.

# === 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,
including akmods/DKMS modules such as NVIDIA and xpadneo.

# === 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
%if 0%{?with_xpadneo_kernel}
patch -p1 -i %{PATCH5}  # xpadneo kernel integration
patch -p1 -i %{PATCH6}  # xpadneo fix
%endif
patch -p1 -i %{PATCH7}  # MA350
%if 0%{?with_xe_nonx86}
patch -p1 -i %{PATCH8}  # xe non-x86
%endif
%if 0%{?with_linux_surface}
patch -p1 -i %{PATCH9}  # linux-surface
%endif
%endif

# Use the pre-generated Source1 config as the single source of truth.
# Do not modify kernel config in the spec; only resolve symbols introduced by patches.
make %{?_smp_mflags} olddefconfig
cp .config config-linux-%{branch}

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

# Build module signing helpers for akmods/kmods
if [ -f scripts/sign-file.c ]; then
    gcc %{optflags} -Iscripts -o scripts/sign-file scripts/sign-file.c -lcrypto
fi

if [ -f certs/extract-cert.c ]; then
    gcc %{optflags} -Iscripts -o scripts/extract-cert certs/extract-cert.c -lcrypto
elif [ -f scripts/extract-cert.c ]; then
    gcc %{optflags} -Iscripts -o scripts/extract-cert scripts/extract-cert.c -lcrypto
fi

chmod 0755 scripts/sign-file scripts/extract-cert 2>/dev/null || :

# === 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
chmod 0644 %{buildroot}/boot/config-%{kverrel} %{buildroot}/boot/System.map-%{kverrel}
chmod 0644 %{buildroot}/lib/modules/%{kverrel}/config %{buildroot}/lib/modules/%{kverrel}/System.map

# Development headers preparation
rm -f %{buildroot}/lib/modules/%{kverrel}/build
rm -f %{buildroot}/lib/modules/%{kverrel}/source
rm -rf %{buildroot}/usr/src/kernels/%{kverrel}
mkdir -p %{buildroot}/usr/src/kernels/%{kverrel}
mkdir -p %{buildroot}/lib/modules/%{kverrel}

cp -v Makefile Kconfig %{buildroot}/usr/src/kernels/%{kverrel}/
cp -v .config %{buildroot}/usr/src/kernels/%{kverrel}/
cp -v System.map %{buildroot}/usr/src/kernels/%{kverrel}/

if [ -e Module.symvers ]; then
    cp -v Module.symvers %{buildroot}/usr/src/kernels/%{kverrel}/
    cp -v Module.symvers %{buildroot}/lib/modules/%{kverrel}/symvers
    xz -f %{buildroot}/lib/modules/%{kverrel}/symvers || :
fi

cp -a scripts %{buildroot}/usr/src/kernels/%{kverrel}/
rm -rf %{buildroot}/usr/src/kernels/%{kverrel}/scripts/tracing
cp -a include %{buildroot}/usr/src/kernels/%{kverrel}/include
cp -a arch %{buildroot}/usr/src/kernels/%{kverrel}/arch

# Useful for external modules that inspect generated files
[ -d certs ] && cp -a certs %{buildroot}/usr/src/kernels/%{kverrel}/certs || :

# Ensure signing helpers exist for akmods/DKMS.
test -x scripts/sign-file || { echo "ERROR: scripts/sign-file missing"; exit 1; }
test -x scripts/extract-cert || { echo "ERROR: scripts/extract-cert missing"; exit 1; }
install -p -m 0755 scripts/sign-file %{buildroot}/usr/src/kernels/%{kverrel}/scripts/sign-file
install -p -m 0755 scripts/extract-cert %{buildroot}/usr/src/kernels/%{kverrel}/scripts/extract-cert

# This is large but helps compatibility with DKMS/akmods and tools builds.
cp -a tools %{buildroot}/usr/src/kernels/%{kverrel}/tools

find %{buildroot}/usr/src/kernels/%{kverrel} \
    \( -name "*.o" -o -name "*.cmd" -o -name "*.ko" \) -type f -delete

ln -sfn /usr/src/kernels/%{kverrel} %{buildroot}/lib/modules/%{kverrel}/build
ln -sfn /usr/src/kernels/%{kverrel} %{buildroot}/lib/modules/%{kverrel}/source

/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 "Ro-ASD experimental kernel installed. It was not set as default automatically."
    echo "Use: sudo grubby --set-default=/boot/vmlinuz-%{kverrel}"
fi

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

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

%postun modules
if [ -d /lib/modules/%{kverrel} ]; then
    /sbin/depmod -a %{kverrel} || :
fi

%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

%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
%ghost /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
* Tue May 05 2026 Ro-ASD Kernel Team <https://github.com/Project-Ro-ASD> - 7.0-104
- Reworked experimental spec as metapackage plus core/modules/devel split
- Use pre-generated Fedora-derived 7.0 experimental config as Source1
- Apply selected experimental patches after config import, then run olddefconfig
- Gate xpadneo kernel integration by default; prefer separate DKMS/RPM package
- Gate linux-surface and xe-nonx86 patchsets by default
- Avoid setting experimental kernel as default automatically
- Keep akmods/DKMS-compatible devel tree and module signing helpers

* 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
- BORE scheduler and gaming optimizations
- Compatible with NVIDIA/AMD akmods