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# kernel 6.18.50 (upstream: gregkh/linux tag v6.18.50)
# topdir: linux-6.18.50 (确认方式: tar tf linux-6.18.50.tar.xz | head -1)
#
# 构建说明: 内核使用 Makefile/Kbuild 构建（无 CMake/meson/autotools），
# 本 spec 以 x86_64 defconfig 为基准构建 bzImage + modules，
# 关闭调试信息 / BTF / 模块签名以缩短构建时间并避免依赖外部密钥。
%global debug_package %{nil}
%global _build_id_links none
%global _missing_build_ids_terminate_build 0
# 内核模块不是普通共享库，跳过 rpm 的 strip / find-requires / find-provides 后处理
%global __os_install_post %{nil}
%global __find_provides %{nil}
%global __find_requires %{nil}
# SRPM 内的裸 tarball 已 xz 压缩，payload 用最快档，避免重复压缩耗时
%global _source_payload w0.gzdio
%global _binary_payload w3.zstdio
# 各架构最终内核镜像路径（%build 生成的同名产物）
%ifarch x86_64
%global kernel_image arch/x86/boot/bzImage
%endif
%ifarch aarch64
%global kernel_image arch/arm64/boot/Image
%endif
Name: kernel
Version: 6.18.50
Release: 1%{?dist}
Summary: The Linux kernel
License: GPL-2.0-only
URL: https://github.com/gregkh/linux
Source0: https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-%{version}.tar.xz
BuildRequires: gcc
BuildRequires: gcc-c++
BuildRequires: binutils
BuildRequires: make
BuildRequires: bc
BuildRequires: bison
BuildRequires: flex
BuildRequires: openssl
BuildRequires: openssl-devel
BuildRequires: elfutils-libelf-devel
BuildRequires: perl
BuildRequires: python3
BuildRequires: rsync
BuildRequires: tar
BuildRequires: xz
BuildRequires: gzip
BuildRequires: bzip2
BuildRequires: zstd
BuildRequires: lz4
BuildRequires: cpio
BuildRequires: kmod
BuildRequires: dwarves
BuildRequires: hostname
BuildRequires: diffutils
BuildRequires: findutils
BuildRequires: which
BuildRequires: glibc-devel
BuildRequires: ncurses-devel
BuildRequires: ca-certificates
Requires(post): kmod
Requires(postun): kmod
%description
The Linux kernel, version %{version}, built from the upstream stable tree
(gregkh/linux tag v%{version}). This package provides the kernel image
(bzImage), the in-tree modules, the kernel configuration and System.map.
%prep
%autosetup -n linux-%{version}
%build
# 目标架构默认配置
make defconfig
# 精简构建：关闭调试信息 / BTF / 模块签名 / WERROR，避免构建期依赖外部密钥与
# 新版 pahole，并显著缩短构建时间（gcc 12.3.1 下 -Werror 风险高）
for opt in DEBUG_INFO DEBUG_INFO_DWARF5 DEBUG_INFO_BTF DEBUG_INFO_BTF_MODULES \
GDB_SCRIPTS MODULE_SIG MODULE_SIG_ALL MODULE_COMPRESS WERROR \
LOCALVERSION_AUTO; do
./scripts/config --file .config -d "$opt" || :
done
./scripts/config --file .config --set-str SYSTEM_TRUSTED_KEYS "" || :
make olddefconfig
if grep -q '^CONFIG_DEBUG_INFO=y' .config; then
echo "ERROR: failed to disable CONFIG_DEBUG_INFO" >&2
exit 1
fi
echo "[kernel] kernelrelease = $(make -s kernelrelease)"
test "$(make -s kernelrelease)" = "%{version}"
%ifarch x86_64
make %{?_smp_mflags} bzImage modules
%endif
%ifarch aarch64
make %{?_smp_mflags} Image modules
%endif
%install
make modules_install INSTALL_MOD_PATH=%{buildroot} INSTALL_MOD_STRIP=1
install -D -p -m 0755 %{kernel_image} %{buildroot}/boot/vmlinuz-%{version}
install -D -p -m 0644 System.map %{buildroot}/boot/System.map-%{version}
install -D -p -m 0644 .config %{buildroot}/boot/config-%{version}
# 源码树符号链接指向构建目录，安装包中必须去掉
rm -f %{buildroot}/lib/modules/%{version}/build \
%{buildroot}/lib/modules/%{version}/source
%post
/sbin/depmod -a %{version} >/dev/null 2>&1 || :
%postun
/sbin/depmod -a %{version} >/dev/null 2>&1 || :
%files
%license COPYING
%doc README
/boot/vmlinuz-%{version}
/boot/System.map-%{version}
/boot/config-%{version}
/lib/modules/%{version}
%changelog
* Sat Nov 07 2026 openEuler Builder <builder@openeuler.org> - 6.18.50-1
- Initial package of the Linux kernel 6.18.50 from gregkh/linux v6.18.50
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