redhat: split sub-rpm kernel-modules-core from kernel-core

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2142102
Upstream Status: RHEL only

All kernel modules plus support files (such as the files generated
by depmod) are moved to the new kernel-modules-core sub-rpm.

The kernel binary plus support files stay in the kernel-core sub-rpm.
This essentially includes the files which are copied over to /boot by
the kernel-install utility (vmlinuz, System.map, ...).

With this in place we have a strict separation between sub-rpms carrying
a kernel image and sub-rpms carrying kernel modules.  This should make it
easier to use alternative kernel image packages, for example an unified
kernel.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>

Author: kraxel

redhat/kernel.spec.template

@@ -592,6 +592,7 @@ ExclusiveOS: Linux
 %ifnarch %{nobuildarches}
 Requires: kernel-core-uname-r = %{KVERREL}
 Requires: kernel-modules-uname-r = %{KVERREL}
+Requires: kernel-modules-core-uname-r = %{KVERREL}
 %endif
 
 
@@ -892,6 +893,7 @@ Provides: kernel = %{specversion}-%{pkg_release}\
 %endif\
 Provides: kernel-%{_target_cpu} = %{specversion}-%{pkg_release}%{uname_suffix %{?1:%{1}}}\
 Provides: kernel-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
+Requires: kernel%{?1:-%{1}}-modules-core-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 Requires(pre): %{kernel_prereq}\
 Requires(pre): %{initrd_prereq}\
 Requires(pre): ((linux-firmware >= 20150904-56.git6ebf5d57) if linux-firmware)\
@@ -1226,6 +1228,7 @@ Provides: installonlypkg(kernel-module)\
 Provides: kernel%{?1:-%{1}}-modules-internal-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 Requires: kernel-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 Requires: kernel%{?1:-%{1}}-modules-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
+Requires: kernel%{?1:-%{1}}-modules-core-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 AutoReq: no\
 AutoProv: yes\
 %description %{?1:%{1}-}modules-internal\
@@ -1246,6 +1249,7 @@ Provides: installonlypkg(kernel-module)\
 Provides: kernel%{?1:-%{1}}-modules-extra-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 Requires: kernel-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 Requires: kernel%{?1:-%{1}}-modules-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
+Requires: kernel%{?1:-%{1}}-modules-core-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 %if %{-m:1}%{!-m:0}\
 Requires: kernel-modules-extra-uname-r = %{KVERREL}%{uname_variant %{?1:%{1}}}\
 %endif\
@@ -1268,6 +1272,7 @@ Provides: kernel-modules = %{version}-%{release}%{uname_suffix %{?1:%{1}}}\
 Provides: installonlypkg(kernel-module)\
 Provides: kernel%{?1:-%{1}}-modules-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 Requires: kernel-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
+Requires: kernel%{?1:-%{1}}-modules-core-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 %if %{-m:1}%{!-m:0}\
 Requires: kernel-modules-uname-r = %{KVERREL}%{uname_variant %{?1:%{1}}}\
 %endif\
@@ -1277,6 +1282,28 @@ AutoProv: yes\
 This package provides commonly used kernel modules for the %{?2:%{2}-}core kernel package.\
 %{nil}
 
+#
+# This macro creates a kernel-<subpackage>-modules-core package.
+#	%%kernel_modules_core_package [-m] <subpackage> <pretty-name>
+#
+%define kernel_modules_core_package(m) \
+%package %{?1:%{1}-}modules-core\
+Summary: Core kernel modules to match the %{?2:%{2}-}core kernel\
+Provides: kernel%{?1:-%{1}}-modules-core-%{_target_cpu} = %{version}-%{release}\
+Provides: kernel-modules-core-%{_target_cpu} = %{version}-%{release}%{uname_suffix %{?1:%{1}}}\
+Provides: kernel-modules-core = %{version}-%{release}%{uname_suffix %{?1:%{1}}}\
+Provides: installonlypkg(kernel-module)\
+Provides: kernel%{?1:-%{1}}-modules-core-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
+Requires: kernel-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
+%if %{-m:1}%{!-m:0}\
+Requires: kernel-modules-core-uname-r = %{KVERREL}%{uname_variant %{?1:%{1}}}\
+%endif\
+AutoReq: no\
+AutoProv: yes\
+%description %{?1:%{1}-}modules-core\
+This package provides essential kernel modules for the %{?2:%{2}-}core kernel package.\
+%{nil}
+
 #
 # this macro creates a kernel-<subpackage> meta package.
 #	%%kernel_meta_package <subpackage>
@@ -1286,6 +1313,7 @@ This package provides commonly used kernel modules for the %{?2:%{2}-}core kerne
 summary: kernel meta-package for the %{1} kernel\
 Requires: kernel-%{1}-core-uname-r = %{KVERREL}%{uname_suffix %{1}}\
 Requires: kernel-%{1}-modules-uname-r = %{KVERREL}%{uname_suffix %{1}}\
+Requires: kernel-%{1}-modules-core-uname-r = %{KVERREL}%{uname_suffix %{1}}\
 Provides: installonlypkg(kernel)\
 %description %{1}\
 The meta-package for the %{1} kernel\
@@ -1303,6 +1331,7 @@ Provides: kernel-%{?1:%{1}-}core-uname-r = %{KVERREL}%{uname_suffix %{?1:%{1}}}\
 Provides: installonlypkg(kernel)\
 %if %{-m:1}%{!-m:0}\
 Requires: kernel-core-uname-r = %{KVERREL}%{uname_variant %{?1:%{1}}}\
+Requires: kernel-%{?1:%{1}-}-modules-core-uname-r = %{KVERREL}%{uname_variant %{?1:%{1}}}\
 %endif\
 %{expand:%%kernel_reqprovconf %{?1:%{1}} %{-o:%{-o}}}\
 %if %{?1:1} %{!?1:0} \
@@ -1311,6 +1340,7 @@ Requires: kernel-core-uname-r = %{KVERREL}%{uname_variant %{?1:%{1}}}\
 %{expand:%%kernel_devel_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}} %{-m:%{-m}}}\
 %{expand:%%kernel_devel_matched_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}} %{-m:%{-m}}}\
 %{expand:%%kernel_modules_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}} %{-m:%{-m}}}\
+%{expand:%%kernel_modules_core_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}} %{-m:%{-m}}}\
 %{expand:%%kernel_modules_extra_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}} %{-m:%{-m}}}\
 %if %{-m:0}%{!-m:1}\
 %{expand:%%kernel_modules_internal_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}}}\
@@ -2173,8 +2203,8 @@ BuildKernel() {
     # Make sure the files lists start with absolute paths or rpmbuild fails.
     # Also add in the dir entries
     sed -e 's/^lib*/\/lib/' %{?zipsed} $RPM_BUILD_ROOT/k-d.list > ../kernel${Variant:+-${Variant}}-modules.list
-    sed -e 's/^lib*/%dir \/lib/' %{?zipsed} $RPM_BUILD_ROOT/module-dirs.list > ../kernel${Variant:+-${Variant}}-core.list
-    sed -e 's/^lib*/\/lib/' %{?zipsed} $RPM_BUILD_ROOT/modules.list >> ../kernel${Variant:+-${Variant}}-core.list
+    sed -e 's/^lib*/%dir \/lib/' %{?zipsed} $RPM_BUILD_ROOT/module-dirs.list > ../kernel${Variant:+-${Variant}}-modules-core.list
+    sed -e 's/^lib*/\/lib/' %{?zipsed} $RPM_BUILD_ROOT/modules.list >> ../kernel${Variant:+-${Variant}}-modules-core.list
     sed -e 's/^lib*/\/lib/' %{?zipsed} $RPM_BUILD_ROOT/mod-extra.list >> ../kernel${Variant:+-${Variant}}-modules-extra.list
     sed -e 's/^lib*/\/lib/' %{?zipsed} $RPM_BUILD_ROOT/mod-internal.list >> ../kernel${Variant:+-${Variant}}-modules-internal.list
 
@@ -2848,6 +2878,19 @@ if [ -f %{_localstatedir}/lib/rpm-state/%{name}/need_to_run_dracut_%{KVERREL}%{?
 fi\
 %{nil}
 
+#
+# This macro defines a %%post script for a kernel*-modules-core package.
+# It also defines a %%postun script that does the same thing.
+#	%%kernel_modules_core_post [<subpackage>]
+#
+%define kernel_modules_core_post() \
+%{expand:%%posttrans %{?1:%{1}-}modules-core}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}\
+%{expand:%%postun %{?1:%{1}-}modules-core}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}
+
 # This macro defines a %%posttrans script for a kernel package.
 #	%%kernel_variant_posttrans [<subpackage>]
 # More text can follow to go at the end of this variant's %%post.
@@ -2876,6 +2919,7 @@ fi\
 %define kernel_variant_post(v:r:) \
 %{expand:%%kernel_devel_post %{?-v*}}\
 %{expand:%%kernel_modules_post %{?-v*}}\
+%{expand:%%kernel_modules_core_post %{?-v*}}\
 %{expand:%%kernel_modules_extra_post %{?-v*}}\
 %{expand:%%kernel_modules_internal_post %{?-v*}}\
 %{expand:%%kernel_variant_posttrans %{?-v*}}\
@@ -3115,7 +3159,7 @@ fi
 #
 %define kernel_variant_files(k:) \
 %if %{2}\
-%{expand:%%files -f kernel-%{?3:%{3}-}core.list %{?1:-f kernel-%{?3:%{3}-}ldsoconf.list} %{?3:%{3}-}core}\
+%{expand:%%files %{?1:-f kernel-%{?3:%{3}-}ldsoconf.list} %{?3:%{3}-}core}\
 %{!?_licensedir:%global license %%doc}\
 %license linux-%{KVERREL}/COPYING-%{version}-%{release}\
 /lib/modules/%{KVERREL}%{?3:+%{3}}/%{?-k:%{-k*}}%{!?-k:vmlinuz}\
@@ -3133,6 +3177,7 @@ fi
 %ghost %attr(0600, root, root) /boot/symvers-%{KVERREL}%{?3:+%{3}}.gz\
 %ghost %attr(0600, root, root) /boot/initramfs-%{KVERREL}%{?3:+%{3}}.img\
 %ghost %attr(0644, root, root) /boot/config-%{KVERREL}%{?3:+%{3}}\
+%{expand:%%files -f kernel-%{?3:%{3}-}modules-core.list %{?3:%{3}-}modules-core}\
 %dir /lib/modules\
 %dir /lib/modules/%{KVERREL}%{?3:+%{3}}\
 %dir /lib/modules/%{KVERREL}%{?3:+%{3}}/kernel\
@@ -3176,6 +3221,7 @@ fi
 %files debug-devel
 %files debug-devel-matched
 %files debug-modules
+%files debug-modules-core
 %files debug-modules-extra
 %if %{with_arm64_64k}
 %files 64k-debug