# This spec file is designed to build a custom kernel RPM package.
# It assumes you have a 'build_kernel.sh' script that handles the entire build process.

# --- Preamble Section ---
# General information about the package.
Name:           kernel-ath
Version:        6.16.0_400
Release:        1%{?dist}
Summary:        Custom built Linux kernel
License:        GPLv2
Group:          System Environment/Kernel
URL:            http://www.yourdomain.com
BuildRequires:  make, gcc, openssl-devel, elfutils-libelf-devel, python3-devel
BuildRequires:  %{_bindir}/bash
BuildArch:      x86_64

Source0: linux-ath-next

# A more detailed description of the package.
%description
This package contains a custom-built Linux kernel for the x86_64 architecture.
It was compiled using a custom build script.

# --- Preparation Section ---
# This section prepares the sources for building.
# It assumes your build_kernel.sh script and the kernel source are in the
# same directory as this spec file when you run rpmbuild.
%prep
# Unpack the source tarball. Assuming the source is in a directory named
# 'kernel-source'. You may need to adjust this.
# For simplicity, we assume your `build_kernel.sh` script and kernel source
# are already in the source directory.
# If your build script is in a separate file, you should copy it here.
# For example: cp %{_sourcedir}/build_kernel.sh .


# --- Build Section ---
# This is the core section where your build script is executed.
%build
# Navigate to the source directory and run the build script.
# IMPORTANT: This command is a placeholder. You must ensure your
# build_kernel.sh script is executable and located correctly.
# It's good practice for the build script to use the buildroot directory,
# e.g., %{_builddir}/%{name}-%{version}, as its working directory.
./build-kernel.sh

# --- Install Section ---
# This section copies the built files into the destination directory.
# This is a critical part and requires you to know where your `build_kernel.sh`
# places the output files (vmlinuz, System.map, .config, modules).
%install
# Create the necessary directories in the build root.
mkdir -p %{buildroot}/boot
mkdir -p %{buildroot}/lib/modules

# The following lines are ASSUMPTIONS about your build script's output.
# You will likely need to adjust the source paths (%{_builddir}/...)
# to match where your `build_kernel.sh` places the files.

# Copy the kernel image
cp ./arch/x86_64/boot/bzImage %{buildroot}/boot/vmlinuz-%{version}

# Copy the System.map file
cp ./System.map %{buildroot}/boot/System.map-%{version}

# Copy the kernel configuration
cp ./.config %{buildroot}/boot/config-%{version}

# Install modules (usually handled by 'make modules_install')
# If your build script does not run 'make modules_install' for you,
# you will need to add that command here and adjust the paths.
# We assume the modules are in the current working directory from the build.
make modules_install DESTDIR=%{buildroot}

# --- Files Section ---
# This section lists all the files that will be included in the RPM package.
%files
/boot/vmlinuz-%{version}
/boot/System.map-%{version}
/boot/config-%{version}
# The modules directory needs to be listed to include all modules
/lib/modules/%{version}

# --- Changelog Section ---
%changelog
* Wed Aug 07 2025 Bhargavjit Bhuyan <example@example.com> - 1.0-1
- Initial RPM release for custom kernel.