[WIP] Create kernel-core and kernel-drivers subpackages
Josh Boyer
jwboyer at fedoraproject.org
Mon Mar 17 19:13:54 UTC 2014
There are still some things I need to fix before this is really ready,
but in the spirit of release-early here is the current kernel.spec file
diff I have. This does a few things.
Macros and %files:
1) Moves the kernel_reqprovconf macro down a bit and makes the plain
"kernel" package a meta-package
2) All actual kernel builds are now done via the kernel_variant_package
macro. If no variant is given, it builds kernel-core. Otherwise it
builds kernel-<variant>-core.
3) Adds a kernel_drivers_package subpackage macro that
kernel_variant_package expands and includes. Also defines the proper
post and postun scriptlets.
4) Makes the kernel_variant_files macro use file lists for the
kernel-core and kernel-drivers subpackages.
File list generation:
The hunk in the middle is what generates the file lists that item 4
above uses. It does
1) calls a script called "filter_modules" that goes through and removes
the modules we don't consider important enough to be in kernel-core in
the RPM_BUILD_DIR.
2) calls depmod on the now filtered tree, as kernel-core should be
self-contained.
3) Restores the module directory from a copy we've made prior, so that
RPM can do it's package assembly later.
4) Save off the file lists in the proper location for later use and
cleanup.
TODO:
Right now this is what has been building in my COPR for the past week.
It works well on x86_64 (which is all I've tested), and i686 builds but
I know it's broken on ARM. To finish it up, I need:
1) Review from you all.
2) A per-arch filter list, because the existing one that works on
x86_64 leaves modules in kernel-core on ARM that lack their
dependencies. Bad.
3) Further testing on all arches.
4) To make the depmod call fatal to the build. Without making this
fatal we run the risk of pushing kernel-core packages that aren't
self-contained and that seems pretty bad to me. It shouldn't be a huge
issue as I would think most of the breakage is going to come from merge
window stuff and settle down after that.
josh
diff --git a/kernel.spec b/kernel.spec
index e055bb2..4ffa1b6 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -34,7 +34,7 @@ Summary: The Linux kernel
# For non-released -rc kernels, this will be appended after the rcX and
# gitX tags, so a 3 here would become part of release "0.rcX.gitX.3"
#
-%global baserelease 1
+%global baserelease 8
%global fedora_build %{baserelease}
# base_sublevel is the kernel version we're starting with and patching
@@ -385,29 +385,6 @@ Summary: The Linux kernel
%define kernel_prereq fileutils, systemd >= 203-2
%define initrd_prereq dracut >= 027
-#
-# This macro does requires, provides, conflicts, obsoletes for a kernel package.
-# %%kernel_reqprovconf <subpackage>
-# It uses any kernel_<subpackage>_conflicts and kernel_<subpackage>_obsoletes
-# macros defined above.
-#
-%define kernel_reqprovconf \
-Provides: kernel = %{rpmversion}-%{pkg_release}\
-Provides: kernel-%{_target_cpu} = %{rpmversion}-%{pkg_release}%{?1:+%{1}}\
-Provides: kernel-drm-nouveau = 16\
-Provides: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
-Requires(pre): %{kernel_prereq}\
-Requires(pre): %{initrd_prereq}\
-Requires(pre): linux-firmware >= 20130724-29.git31f6b30\
-Requires(preun): systemd >= 200\
-%{expand:%%{?kernel%{?1:_%{1}}_conflicts:Conflicts: %%{kernel%{?1:_%{1}}_conflicts}}}\
-%{expand:%%{?kernel%{?1:_%{1}}_obsoletes:Obsoletes: %%{kernel%{?1:_%{1}}_obsoletes}}}\
-%{expand:%%{?kernel%{?1:_%{1}}_provides:Provides: %%{kernel%{?1:_%{1}}_provides}}}\
-# We can't let RPM do the dependencies automatic because it'll then pick up\
-# a correct but undesirable perl dependency from the module headers which\
-# isn't required for the kernel proper to function\
-AutoReqProv: no\
-%{nil}
Name: kernel%{?variant}
Group: System Environment/Kernel
@@ -419,8 +396,9 @@ Release: %{pkg_release}
# SET %%nobuildarches (ABOVE) INSTEAD
ExclusiveArch: noarch %{all_x86} x86_64 ppc ppc64 ppc64p7 s390 s390x %{arm} aarch64 ppc64le
ExclusiveOS: Linux
+Requires: kernel-%{?variant:%{variant}-}core-uname-r = %{KVERREL}%{?variant}
+Requires: kernel-%{?variant:%{variant}-}drivers-uname-r = %{KVERREL}%{?variant}
-%kernel_reqprovconf
#
# List the packages used during the kernel build
@@ -464,6 +442,7 @@ Source15: merge.pl
Source16: mod-extra.list
Source17: mod-extra.sh
Source18: mod-sign.sh
+Source99: filter-modules.sh
%define modsign_cmd %{SOURCE18}
Source19: Makefile.release
@@ -649,10 +628,31 @@ Patch25044: iwlwifi-dvm-take-mutex-when-sending-SYNC-BT-config-command.patch
BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
%description
-The kernel package contains the Linux kernel (vmlinuz), the core of any
-Linux operating system. The kernel handles the basic functions
-of the operating system: memory allocation, process allocation, device
-input and output, etc.
+The kernel meta package
+
+#
+# This macro does requires, provides, conflicts, obsoletes for a kernel package.
+# %%kernel_reqprovconf <subpackage>
+# It uses any kernel_<subpackage>_conflicts and kernel_<subpackage>_obsoletes
+# macros defined above.
+#
+%define kernel_reqprovconf \
+Provides: kernel = %{rpmversion}-%{pkg_release}\
+Provides: kernel-%{_target_cpu} = %{rpmversion}-%{pkg_release}%{?1:+%{1}}\
+Provides: kernel-drm-nouveau = 16\
+Provides: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
+Requires(pre): %{kernel_prereq}\
+Requires(pre): %{initrd_prereq}\
+Requires(pre): linux-firmware >= 20130724-29.git31f6b30\
+Requires(preun): systemd >= 200\
+%{expand:%%{?kernel%{?1:_%{1}}_conflicts:Conflicts: %%{kernel%{?1:_%{1}}_conflicts}}}\
+%{expand:%%{?kernel%{?1:_%{1}}_obsoletes:Obsoletes: %%{kernel%{?1:_%{1}}_obsoletes}}}\
+%{expand:%%{?kernel%{?1:_%{1}}_provides:Provides: %%{kernel%{?1:_%{1}}_provides}}}\
+# We can't let RPM do the dependencies automatic because it'll then pick up\
+# a correct but undesirable perl dependency from the module headers which\
+# isn't required for the kernel proper to function\
+AutoReqProv: no\
+%{nil}
%package headers
Summary: Header files for the Linux kernel for use by glibc
@@ -834,53 +834,65 @@ Provides: kernel%{?1:-%{1}}-modules-extra = %{version}-%{release}%{?1:+%{1}}\
Provides: installonlypkg(kernel-module)\
Provides: kernel%{?1:-%{1}}-modules-extra-uname-r = %{KVERREL}%{?1:+%{1}}\
Requires: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
+Requires: kernel-drivers-uname-r = %{KVERREL}%{?1:+%{1}}\
AutoReqProv: no\
%description -n kernel%{?variant}%{?1:-%{1}}-modules-extra\
This package provides less commonly used kernel modules for the %{?2:%{2} }kernel package.\
%{nil}
#
+# This macro creates a kernel-<subpackage>-drivers package.
+# %%kernel_drivers_package <subpackage> <pretty-name>
+#
+%define kernel_drivers_package() \
+%package %{?1:%{1}-}drivers\
+Summary: kernel modules to match the %{?2:%{2}-}core kernel\
+Group: System Environment/Kernel\
+Provides: kernel%{?1:-%{1}}-drivers-%{_target_cpu} = %{version}-%{release}\
+Provides: kernel-drivers-%{_target_cpu} = %{version}-%{release}%{?1:+%{1}}\
+Provides: kernel-drivers = %{version}-%{release}%{?1:+%{1}}\
+Provides: installonlypkg(kernel-module)\
+Provides: kernel-drivers-uname-r = %{KVERREL}%{?1:+%{1}}\
+Requires: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
+AutoReqProv: no\
+%description -n kernel%{?variant}%{?1:-%{1}}-drivers\
+This package provides commonly used kernel modules for the %{?2:%{2}-}core kernel package.\
+%{nil}
+
+#
# This macro creates a kernel-<subpackage> and its -devel and -debuginfo too.
# %%define variant_summary The Linux kernel compiled for <configuration>
# %%kernel_variant_package [-n <pretty-name>] <subpackage>
#
%define kernel_variant_package(n:) \
-%package %1\
+%package %{?1:%{1}-}core\
Summary: %{variant_summary}\
Group: System Environment/Kernel\
-%kernel_reqprovconf\
-%{expand:%%kernel_devel_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\
+Provides: kernel-%{?1:%{1}-}core-uname-r = %{KVERREL}%{?1:+%{1}}\
+%{expand:%%kernel_reqprovconf}\
+%{expand:%%kernel_devel_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}}}\
+%{expand:%%kernel_drivers_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}}}\
%if %{with_extra}\
-%{expand:%%kernel_modules_extra_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\
+%{expand:%%kernel_modules_extra_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}}}\
%endif\
-%{expand:%%kernel_debuginfo_package %1}\
+%{expand:%%kernel_debuginfo_package %{?1:%{1}}}\
%{nil}
-
-# First the auxiliary packages of the main kernel package.
-%kernel_devel_package
-%if %{with_extra}
-%kernel_modules_extra_package
-%endif
-%kernel_debuginfo_package
-
-
# Now, each variant package.
%define variant_summary The Linux kernel compiled for SMP machines
%kernel_variant_package -n SMP smp
-%description smp
+%description smp-core
This package includes a SMP version of the Linux kernel. It is
required only on machines with two or more CPUs as well as machines with
hyperthreading technology.
Install the kernel-smp package if your machine uses two or more CPUs.
-
%ifnarch armv7hl
%define variant_summary The Linux kernel compiled for PAE capable machines
%kernel_variant_package %{pae}
-%description %{pae}
+%description %{pae}-core
This package includes a version of the Linux kernel with support for up to
64GB of high memory. It requires a CPU with Physical Address Extensions (PAE).
The non-PAE kernel can only address up to 4GB of memory.
@@ -888,7 +900,7 @@ Install the kernel-PAE package if your machine has more than 4GB of memory.
%else
%define variant_summary The Linux kernel compiled for Cortex-A15
%kernel_variant_package %{pae}
-%description %{pae}
+%description %{pae}-core
This package includes a version of the Linux kernel with support for
Cortex-A15 devices with LPAE and HW virtualisation support
%endif
@@ -897,7 +909,7 @@ Cortex-A15 devices with LPAE and HW virtualisation support
%define variant_summary The Linux kernel compiled with extra debugging enabled for PAE capable machines
%kernel_variant_package %{pae}debug
Obsoletes: kernel-PAE-debug
-%description %{pae}debug
+%description %{pae}debug-core
This package includes a version of the Linux kernel with support for up to
64GB of high memory. It requires a CPU with Physical Address Extensions (PAE).
The non-PAE kernel can only address up to 4GB of memory.
@@ -910,7 +922,7 @@ on kernel bugs, as some of these options impact performance noticably.
%define variant_summary The Linux kernel compiled with extra debugging enabled
%kernel_variant_package debug
-%description debug
+%description debug-core
The kernel package contains the Linux kernel (vmlinuz), the core of any
Linux operating system. The kernel handles the basic functions
of the operating system: memory allocation, process allocation, device
@@ -920,6 +932,16 @@ This variant of the kernel has numerous debugging options enabled.
It should only be installed when trying to gather additional information
on kernel bugs, as some of these options impact performance noticably.
+# And finally the main -core package
+
+%define variant_summary The Linux kernel
+%kernel_variant_package
+%description core
+The kernel package contains the Linux kernel (vmlinuz), the core of any
+Linux operating system. The kernel handles the basic functions
+of the operating system: memory allocation, process allocation, device
+input and output, etc.
+
%prep
# do a few sanity-checks for --with *only builds
@@ -1589,6 +1611,53 @@ BuildKernel() {
%{SOURCE17} $RPM_BUILD_ROOT/lib/modules/$KernelVer %{SOURCE16}
%endif
+ #
+ # Generate the kernel-core and kernel-drivers files lists
+ #
+
+ # Copy the System.map file for depmod to use, and create a backup of the
+ # full module tree so we can restore it after we're done filtering
+ cp System.map $RPM_BUILD_ROOT/.
+ pushd $RPM_BUILD_ROOT
+ mkdir restore
+ cp -r lib/modules/$KernelVer/* restore/.
+
+ # don't include anything going into k-m-e in the file lists
+ rm -rf lib/modules/$KernelVer/extra
+
+ # Find all the module files and filter them out into the core and drivers
+ # lists. This actually removes anything going into -drivers from the dir.
+ find lib/modules/$KernelVer/kernel -name *.ko | sort -n > modules.list
+ %{SOURCE99} modules.list
+
+ # Run depmod on the resulting module tree and make sure it isn't broken
+ depmod -b . -aeF ./System.map $KernelVer
+ # remove files that will be auto generated by depmod at rpm -i time
+ pushd $RPM_BUILD_ROOT/lib/modules/$KernelVer/
+ rm -f modules.{alias*,builtin.bin,dep*,*map,symbols*,devname,softdep}
+ popd
+
+ # Go back and find all of the various directories in the tree. We use this
+ # for the dir lists in kernel-core
+ find lib/modules/$KernelVer/kernel -type d | sort -n > module-dirs.list
+
+ # Cleanup
+ rm System.map
+ cp -r restore/* lib/modules/$KernelVer/.
+ rm -rf restore
+ popd
+
+ # Make sure the files lists start with absolute paths or rpmbuild fails.
+ # Also add in the dir entries
+ sed -e 's/^lib*/\/lib/' $RPM_BUILD_ROOT/k-d.list > ../kernel${Flavour:+-${Flavour}}-drivers.list
+ sed -e 's/^lib*/%dir \/lib/' $RPM_BUILD_ROOT/module-dirs.list > ../kernel${Flavour:+-${Flavour}}-core.list
+ sed -e 's/^lib*/\/lib/' $RPM_BUILD_ROOT/modules.list >> ../kernel${Flavour:+-${Flavour}}-core.list
+
+ # Cleanup
+ rm -f $RPM_BUILD_ROOT/k-d.list
+ rm -f $RPM_BUILD_ROOT/modules.list
+ rm -f $RPM_BUILD_ROOT/module-dirs.list
+
%if %{signmodules}
# Save the signing keys so we can sign the modules in __modsign_install_post
cp signing_key.priv signing_key.priv.sign${Flav}
@@ -1857,11 +1926,28 @@ fi\
#
# This macro defines a %%post script for a kernel*-modules-extra package.
+# It also defines a %%postun script that does the same thing.
# %%kernel_modules_extra_post [<subpackage>]
#
%define kernel_modules_extra_post() \
%{expand:%%post %{?1:%{1}-}modules-extra}\
/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}\
+%{expand:%%postun %{?1:%{1}-}modules-extra}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}
+
+#
+# This macro defines a %%post script for a kernel*-drivers package.
+# It also defines a %%postun script that does the same thing.
+# %%kernel_drivers_post [<subpackage>]
+#
+%define kernel_drivers_post() \
+%{expand:%%post %{?1:%{1}-}drivers}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}\
+%{expand:%%postun %{?1:%{1}-}drivers}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
%{nil}
# This macro defines a %%posttrans script for a kernel package.
@@ -1869,7 +1955,7 @@ fi\
# More text can follow to go at the end of this variant's %%post.
#
%define kernel_variant_posttrans() \
-%{expand:%%posttrans %{?1}}\
+%{expand:%%posttrans %{?1:%{1}-}core}\
/bin/kernel-install add %{KVERREL}%{?1:+%{1}} /%{image_install_path}/vmlinuz-%{KVERREL}%{?1:+%{1}} || exit $?\
%{nil}
@@ -1880,11 +1966,12 @@ fi\
#
%define kernel_variant_post(v:r:) \
%{expand:%%kernel_devel_post %{?-v*}}\
+%{expand:%%kernel_drivers_post %{?-v*}}\
%if %{with_extra}\
%{expand:%%kernel_modules_extra_post %{?-v*}}\
%endif\
%{expand:%%kernel_variant_posttrans %{?-v*}}\
-%{expand:%%post %{?-v*}}\
+%{expand:%%post %{?-v*:%{-v*}-}core}\
%{-r:\
if [ `uname -i` == "x86_64" -o `uname -i` == "i386" ] &&\
[ -f /etc/sysconfig/kernel ]; then\
@@ -1897,7 +1984,7 @@ fi}\
# %%kernel_variant_preun <subpackage>
#
%define kernel_variant_preun() \
-%{expand:%%preun %{?1}}\
+%{expand:%%preun %{?1:%{1}-}core}\
/bin/kernel-install remove %{KVERREL}%{?1:+%{1}} /%{image_install_path}/vmlinuz-%{KVERREL}%{?1:+%{1}} || exit $?\
%{nil}
@@ -1998,6 +2085,10 @@ fi
%endif
%endif # with_perf
+# empty meta-package
+%files
+%defattr(-,root,root)
+
# This is %%{image_install_path} on an arch where that includes ELF files,
# or empty otherwise.
%define elf_image_install_path %{?kernel_image_elf:%{image_install_path}}
@@ -2009,7 +2100,7 @@ fi
#
%define kernel_variant_files(k:) \
%if %{1}\
-%{expand:%%files %{?2}}\
+%{expand:%%files -f kernel-%{?2:%{2}-}core.list %{?2:%{2}-}core}\
%defattr(-,root,root)\
/%{image_install_path}/%{?-k:%{-k*}}%{!?-k:vmlinuz}-%{KVERREL}%{?2:+%{2}}\
/%{image_install_path}/.vmlinuz-%{KVERREL}%{?2:+%{2}}.hmac \
@@ -2018,9 +2109,10 @@ fi
%endif\
%attr(600,root,root) /boot/System.map-%{KVERREL}%{?2:+%{2}}\
/boot/config-%{KVERREL}%{?2:+%{2}}\
+%ghost /boot/initramfs-%{KVERREL}%{?2:+%{2}}.img\
%dir /lib/modules\
%dir /lib/modules/%{KVERREL}%{?2:+%{2}}\
-/lib/modules/%{KVERREL}%{?2:+%{2}}/kernel\
+%dir /lib/modules/%{KVERREL}%{?2:+%{2}}/kernel\
/lib/modules/%{KVERREL}%{?2:+%{2}}/build\
/lib/modules/%{KVERREL}%{?2:+%{2}}/source\
/lib/modules/%{KVERREL}%{?2:+%{2}}/updates\
@@ -2029,7 +2121,8 @@ fi
/etc/ld.so.conf.d/kernel-%{KVERREL}%{?2:+%{2}}.conf\
%endif\
/lib/modules/%{KVERREL}%{?2:+%{2}}/modules.*\
-%ghost /boot/initramfs-%{KVERREL}%{?2:+%{2}}.img\
+%{expand:%%files -f kernel-%{?2:%{2}-}drivers.list %{?2:%{2}-}drivers}\
+%defattr(-,root,root)\
%{expand:%%files %{?2:%{2}-}devel}\
%defattr(-,root,root)\
/usr/src/kernels/%{KVERREL}%{?2:+%{2}}\
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